0.9.0 hardening — verifiability/enforcement/crash-integrity, netbat+TLS, crypto-shred#153
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`operation_name.rs` listed "TS client" among the validators that must reach for the canonical `OperationName` grammar. The deterministic TS client (P6) is cut from the 0.9.0 surface, so drop the dangling reference rather than let it keep resurfacing. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…ility) Two verifiability holes in receipt signing, both closed as settings with the SAFE path as the default — nothing removed. 1. Unsigned receipts verified as VALID. A keyless store returned `UnsignedAccepted` and `is_valid()` reported `true`, so "I verified this receipt" passed green on a receipt carrying no cryptographic proof. New `SigningPolicy::Required` (the rigor opt-in) refuses to open a store with no signing key; `Optional` (default) keeps the keyless "regular store" working. Added `ReceiptVerification::is_signed()` so a caller can demand cryptographic authenticity instead of conflating it with `is_valid()`. 2. A configured signer SILENTLY emitted unsigned. On a signature-cover build failure a configured signer downgraded to an unsigned receipt and returned Ok. Now `sign_append_receipt` returns `Result` and fails the append closed; `StoreConfig::with_signing_downgrade_allowed(true)` is the explicit opt-in that keeps the best-effort downgrade path alive. Behavior-preserving: extracted `enforce_expected_sequence` from `handle_append` so it stays under its complexity ratchet after the new fail-closed `?`. Red fixtures (tests/signing_policy.rs + inline): Required+keyless refuses to open; `is_signed` != `is_valid` for an unsigned-accepted receipt; downgrade is opt-in; cover-failure is fatal unless downgrade is allowed. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
… baseline A plain read trusted the self-reported `event_hash` (guarded only by the per-frame CRC), and `verify_chain` had ZERO production callers — so the "tamper-evident chain" claim was CRC-grade, not blake3-recompute-grade. Add `Store::verify_chain() -> ChainVerificationReport`: recomputes blake3 over every committed event's actual content bytes, confirms it matches the stored `event_hash`, then confirms every non-genesis `prev_hash` references a verified event. On-demand and O(events): a regular store pays nothing; a regulated one calls it for genuine tamper evidence. Also refreshes traceability/public_api/batpak.txt for the new surface across this branch: `SigningPolicy`, `StoreConfig::with_signing_policy`, `ReceiptVerification::is_signed`, `StoreConfig::with_signing_downgrade_allowed`, `Store::verify_chain`, and `ChainVerificationReport`. Red fixture (tests/chain_verification.rs): a multi-entity store verifies intact; the report recomputes every event and flags no mismatch or dangling link. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…d sink (W1) Two W1 verifiability MAJORs where the runtime silently produced unverifiable receipts, both closed as safe-defaults with an explicit opt-out (the SigningPolicy idiom): 1. Receipts were unhashed by default. `ReceiptHashPolicy` defaulted to `Deferred` (`.hash()` -> None), so every receipt recorded `input_hash=None, output_hash=None` and bound to no bytes. New `Blake3` variant is the default (32-byte digest over the raw input/output bytes); `Deferred` stays reachable as the explicit opt-out for a layer that hashes and binds the bytes itself. 2. A Core built without a `receipt_sink` silently dropped every receipt. `build()` now fails closed with `BuildError::MissingReceiptSink` unless the caller wired a sink or stated the intent with `CoreBuilder::without_receipts()`. hostbat's production path opts out explicitly, so the absence is a stated choice rather than a silent drop. (Whether hostbat itself should require a host-level sink is a separate, deliberate follow-up.) Red fixtures (tests/runtime.rs): a sinkless build without opt-out is rejected; the DEFAULT hash policy binds the receipt to Blake3(input)/Blake3(output) — both were None under the old default. Cross-crate sinkless test cores (syncbat/netbat/hostbat) opt out. Public-api baseline refreshed (+6). Diff reviewed + gates re-verified (structural-check ok, syncbat tests green, clippy -D clean) before commit. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…pen (W1)
`Store::verify_chain()` recomputes blake3 on demand; this adds the SETTING that
runs it automatically at open — the "do both" knob the owner asked for:
- `ChainVerification::Crc` (default): trust the per-frame CRC, no rehash at open —
a regular store pays nothing.
- `ChainVerification::Recompute` (opt-in): recompute blake3 over every committed
event at open and FAIL CLOSED with `StoreError::ChainVerificationFailed` on any
content-hash mismatch or dangling chain link — the regulated tamper-evidence
posture.
Wired into both the read-write and read-only open paths via a shared
`run_open_chain_verification` helper, with a pure `chain_verification_failure`
decision split out so Recompute-vs-intact is unit-testable without forging
on-disk tampering. The new `StoreError::ChainVerificationFailed { mismatches,
dangling }` variant is threaded through every exhaustive match; its `Display`
body is a delegated helper so `Display::fmt` stays under its complexity ratchet.
Also corrects the recovery_manifest doc: the content `event_hash` is CRC-guarded
by default and blake3-recompute-verified only under Recompute / `verify_chain()`
— not unconditionally "unforgeable".
Red fixtures: a Recompute open of an untampered multi-entity store opens intact;
the failure decision maps a non-intact report to `ChainVerificationFailed` with
the right counts; the `Display` names both. Public-api baseline +11 (chain surface).
Diff reviewed + gates re-verified (structural-check ok, tests green, clippy -D
clean, baseline delta is exactly the chain surface) before commit.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…ail closed (W2) A linked-binary `EventKind` collision (two payload types claiming the same `(category, type_id)`) gives the binary ambiguous wire identity — a build/wiring bug, not a runtime warning. `EventPayloadValidation` defaulted to `Warn` (log-once-and-proceed), so a colliding binary opened anyway. Flip the default `Warn` -> `FailFast`: `Store::open` now refuses to open when the linked payload registry contains a collision. `Warn` and `Silent` stay reachable as explicit opt-outs — the same safe-default/escape-hatch idiom as the signing, receipt-hashing, and chain-verification defaults. Blast radius was exactly ONE site: the kind-collision-composer fixture's default-open test (it links a real cross-crate collision) now explicitly requests `Warn` and is renamed accordingly. The other collision fixtures are compile-only (never open a store) and are unaffected. No public-api change (moving `#[default]` leaves the surface text identical). Red fixture (tests/event_payload_collision_default_fail_fast.rs): seeds a real link-time collision via `inventory::submit!` (bypassing the derive's cfg(test) panic-test) and proves default-FailFast refuses the open while explicit-Warn still opens; both guard against vacuity with a precondition assert. Follow-up flagged (not built): the derive's collision check is still `#[cfg(test)]`-only, so a release binary that registers payloads but never opens a Store still gets no check — a real linkable assertion needs life-before-main linkage beyond this crate's machinery. Diff reviewed + gates re-verified (structural ok, red fixture 2/2, unaffected tests 23/23, clippy -D clean, baseline unchanged) before commit. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…nted (W2) `OperationEffectRow.requires_capabilities` was decorative: a free-form token declared via `requires_capability(...)` (or the macro) landed in the declared row and was checked against nothing — no grant set existed, so a declared capability could never deny. Confirmed zero production readers of `requires_capabilities()` before this. Give `Core` a runtime-granted capability set (`CoreBuilder::grant_capability` / `grant_capabilities`) and enforce `declared.requires_capabilities ⊆ granted` at checkout — failing closed (a `capability.denied` denial receipt + `RuntimeError::denied`) before the handler/guard runs, mirroring the existing observed-effect-row denial. Design note: the five effect-axis tokens (`event.read`, `event.append`, `projection.query`, `receipt.emit`, `host.control`) are AUTO-declared by the effect builders and already mediated by the observed⊆declared effect-row check, so they are ambient and skipped by the grant gate (`is_reserved_effect_capability` reuses the auto-population's own consts). Only the remaining free-form tokens — the actual decorative-until-now surface — are gated. Zero blast radius: existing ops declare only the ambient tokens. Red fixture (tests/capability_authz.rs): an op declaring `requires_capability` on an ungranted Core is DENIED with `capability.denied` naming the token; the same op on a granted Core succeeds (both setters); an op with no extra tokens still runs on an ungranted Core. Baseline +4 (the two setters). Follow-up flagged: a dedicated capability-grant invariant (couples to invariants.yaml + capability-snapshot + docs-catalog + README count) was left unminted — out of scope for this local change; the gate cites the existing effect-row enforcement invariant for now. Diff reviewed + gates re-verified (structural ok, capability_authz + effect tests green, clippy -D clean, baseline = the 2 setters) before commit. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
`#[batpak(version = N)]` compiled fine but, with no registered upcast chain, silently stranded old events — they became undecodable at READ time (`UpcastError::MissingStep`), an author-time footgun the derive never caught. Catch it at open instead: for every registered payload kind declaring `PAYLOAD_VERSION = N > 1`, verify the linked `Upcast` registry covers every hop `1 -> ... -> N`; an incomplete chain now FAILS `Store::open` closed (`StoreError::UpcastChainIncomplete`) naming the kind, its version, and the missing hops — rather than letting historical events rot until first read. - `macros-support`: `EventPayloadRegistration` gains a doc-hidden `payload_version` (stamped by the derive) so a binary-wide scan can enumerate `(kind, version)`; new `find_incomplete_upcast_chains()` mirrors `find_kind_collisions()` over the same link-time inventory — no new life-before-main machinery. - `event::upcast`: public `IncompleteUpcastChain` / `UpcastChainRegistryError` (keyed by `EventKind`) + cached validate/revalidate, mirroring `event::payload`. - `open.rs`: the existing payload-registry validation splits into collision + upcast-chain passes, both under the single `EventPayloadValidation` policy — default `FailFast` refuses, `Warn`/`Silent` are the explicit opt-outs (same knob the collision check already uses; deliberate, to avoid a parallel policy). - testkit StoreError contract + prelude extended for the new variant. Red fixtures (separate binaries — registries are binary-global): a `version=2` kind with NO upcast step fails to open naming the missing hop `1`; explicit `Warn` opens despite it; a `version=2` kind WITH a `1->2` step and a `version=1` kind both open clean. Gate-bites proven: neutralizing the check turned the red fixture red, restoring it returned green. Diff reviewed + gates re-verified (structural ok, new fixtures + schema_evolution green, clippy -D clean, baseline = the upcast surface only) before commit. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
Of the 5 EffectBackend axes only `append_event` had a production impl; the other four fell through to typed `EffectError` "not supported" defaults, so an op declaring an effect it can't perform could register but never succeed. Implement the two that wire cleanly to what `StoreEffectBackend` holds (its store + bound coordinate): - `read_event` — mediates the declared read through the real read-by-id path (`by_entity` -> `read_raw`): genuine index lookup + disk read + decode, so a declared event read succeeds (and a corrupt-store read surfaces as `EffectError`) instead of unconditionally erroring. The effect-backend layer is effect MEDIATION (the handle records the observed read for the observed ⊆ declared check); event data itself flows via the store read API. - `query_projection` — mediates the declared projection read through the coordinate's scope query (`by_scope`); type-erased (a trait object cannot name the projection `T`), so it wires to the untyped scope read the fold replays over. `emit_receipt` and `use_host_control` deliberately stay on their fail-closed defaults and are FLAGGED, not half-built: - `emit_receipt` — the sink is Core-level (not held by the store backend) and the axis carries only a kind token, not a full `ReceiptEnvelope`; backing it needs the emit API widened + the Core sink plumbed in (follow-up). - `use_host_control` — host authority (hostbat), not a store concept; belongs to a host-layer backend (kernel track). Red->green fixtures (tests/store_effect_backed.rs, 6): read + query ops now succeed end-to-end (each failed with the exact stub message before the impl); the append-only backend still fails both closed; emit_receipt/use_host_control stay fail-closed (pins the flagged axes). No public-api change (override signatures match the trait defaults the baseline already lists). Diff reviewed + gates re-verified (structural ok, store_effect_backed 6/6 + effect_enforcement green, clippy -D clean) before commit. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
… C2, HIGH)
The atomic-rename/persist cluster — `rename`, `remove_file`, `named_temp_in`,
`persist_temp_with_parent_sync` — were free functions BYPASSING the `StoreFs`
trait, so the deterministic `SimFs` could not fault them. Yet they run the most
crash-sensitive paths of the SHIPPED crate: compaction swap/rollback, visibility-
range persist, and cursor-checkpoint persist. The crash harness could never tear
those atomic-rename sequences — directly undercutting the crash-recovery rigor.
Move the cluster onto the `StoreFs` trait:
- Trait gains `rename`/`remove_file`/`named_temp_in`/`persist_temp_with_parent_sync`
(`remove_file_if_present` is a provided default over the one faultable primitive).
- `RealFs` delegates byte-for-byte to the existing `platform::fs::*`/`sync::*` free
fns — production-identical (14 compaction tests + the existing pre-swap-rename
rollback test still green).
- `SimFs` gains a deterministic `CrashOp { Rename, RemoveFile, PersistTemp }` fault
schedule (mirroring its `enospc_on_copy`), so each routed op is fault-injectable.
- The compaction (`lifecycle_compact`), visibility (`hidden_ranges`), and
cursor-checkpoint (`delivery/cursor`) call sites now dispatch through `config.fs()`.
Public `Cursor::save_checkpoint` is preserved (delegates to RealFs) with a new
`pub(crate) save_checkpoint_with_fs` holding the routed body — no public-api change.
Proof (sim/atomic_fault.rs, 3): each pairs a RealFs CONTROL (succeeds —
behavior-preserving) with a SimFs fault on the SAME op — visibility persist and
checkpoint persist surface `Err`, and a compaction-swap rename tear yields a clean
`CompactionOutcome::Failed` rollback. Unfaultable before (the free fns took no fs
handle). The `STORE-PLATFORM-FS-ROUTING` boundary list + 0.9.0 release witness are
updated: only `read_exact_at` remains a direct free fn.
Flagged follow-ups (precise, not half-built): `read_exact_at` (a positioned read —
needs fs threaded into Reader/fd-cache + a ReadAt fault model); the
`write_file_atomically` cold-start-artifact seam (pending-compaction marker +
checkpoint/mmap/idempotency — route as one shared follow-up); and a full
reopen-after-torn-publish crash-recovery oracle over the now-routed persists (the
`sim/recovery` harness can host it).
Diff reviewed + gates re-verified (structural ok, 3 proof fixtures + 14 compaction
tests green, clippy -D clean incl. dangerous-test-hooks) before commit.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…no longer silent (W3 C5)
`Store::walk_ancestors` returned a bare `Vec`, collapsing two very different
outcomes into the same shape: a chain that genuinely reached genesis, and one
TRUNCATED early because a Retention compaction dropped a mid-chain event (leaving
a surviving descendant whose `prev_hash` dangles — `parent_event_id_by_hash`
returns None, the walk just `break`s). The dangling-parent case had no log and no
diagnostic: silently lossy, indistinguishable from a complete chain.
Make the boundary observable:
- New `pub enum AncestryBoundary` (ReachedGenesis / LimitReached /
MissingParent{child} / ReadFailure{event_id} / Cycle{event_id} / NoAnchor) and
`pub struct AncestorWalk { ancestors, boundary }` with `reached_genesis()` /
`truncated_at()`.
- `collect_ancestors` returns the boundary; new `Store::walk_ancestors_outcome`
exposes it; `Store::walk_ancestors` delegates and keeps its `Vec` signature
(delegate-to-variant, public API preserved — baseline +18 additive).
- No `StoreError` variant: a walk boundary is a normal outcome, not an error.
Coherence proof (tests/store_ancestors_retention_coherence.rs): a Retention
compaction drops a mid-chain parent; the walk from a surviving descendant now
reports `MissingParent{child}`, `reached_genesis()==false`, `truncated_at()==Some`
— not a silent short prefix. Non-vacuous (asserts the compaction Performed and the
dropped event is NotFound). Companion proves an intact chain reports ReachedGenesis.
Diff reviewed + gates re-verified (structural ok, coherence 2/2 + ancestry +
14 compaction tests green, clippy -D clean, baseline additive) before commit.
NOTE: while building this, the agent surfaced a SEPARATE critical data-corruption
bug in Retention/Tombstone compaction (survivors written as a decoded Value but
read back as raw bytes -> unreadable). Tracked + fixed separately; this C5 test is
deliberately constructed to read only the live anchor, never a corrupted survivor.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…vent's payload (CRITICAL)
CONFIRMED data-corruption bug in the shipped store. `write_scanned_entry` (the
Retention/Tombstone per-survivor write path) built `FramePayload { event: entry.event }`
and frame-encoded it — but `entry.event` is `Event<serde_json::Value>` (the DECODED
payload, kept for the keep/drop predicate), so the survivor's payload was serialized
as a msgpack MAP. Every read path decodes a frame as `FramePayload<Vec<u8>>`
(`decode_frame_payload_raw`), where `event.payload` must be raw BYTES. Map-where-bytes
-> `Serialization(Syntax("invalid type: map, expected a sequence"))`.
So after ANY `CompactionStrategy::Retention` or `Tombstone` compaction, every
SURVIVING event was present in the index but UNREADABLE via `get`/`walk_ancestors`/
`project`. `Merge` was immune (it byte-copies frames). It shipped silently because no
test ever read a survivor's payload after a Retention/Tombstone compaction — existing
tests only assert dropped->NotFound and index counts.
Fix: carry the survivor's ORIGINAL `event.payload` bytes on `ScannedEntry.payload_bytes`
(captured in the scan's existing raw decode — zero extra work, zero user-payload
re-encode); `write_scanned_entry` rebuilds an `Event<Vec<u8>>` from those bytes + the
verbatim header + verbatim `hash_chain`, re-encoding only the outer frame envelope.
Because every field is verbatim and msgpack is deterministic, a kept frame is
byte-identical to the original — so the survivor reads back faithfully AND its
`event_hash` (blake3 over the payload) is byte-stable across compaction (no chain/
receipt drift). The decoded `Value` stays on `entry.event` purely for the Retention
predicate (keep/drop semantics unchanged).
Red->green proof (tests/store_compaction_survivor_payload.rs, 2): a Retention and a
Tombstone compaction each KEEP a survivor `S` in a sealed merged segment; `get(S)`
reads back the ORIGINAL payload, `walk_ancestors` surfaces it, and the POST-compaction
stored `event_hash` equals `S`'s PRE-compaction append-receipt `content_hash`
(byte-stability, not just decodability). Both were RED before (the survivor `get`
panicked with the exact decode error). Non-vacuous (compaction `Performed`, >=1 segment
removed, the doomed event NotFound / tombstoned).
Flagged, not fixed (separate semantics): whether a TOMBSTONE should redact its payload
/ recompute its hash (it currently keeps the original bytes with the kind rewritten) is
a design question, untouched here.
Diff reviewed + gates re-verified (structural ok, 2/2 proof + compaction 14 +
idempotency 6 + ancestry 2 green, clippy -D clean) before commit.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…nger poisons the listener (W4)
A panic in a connection worker (a buggy handler, an overflow-checked wrap) was
contained during serving (workers run on separate threads), but the listener's
`worker.join().map_err(|_| Io{Other})?` turned a single worker panic into a
listener-WIDE `Err` AND short-circuited the join loop — abandoning every later
worker's join. So one server-side handler bug took down the whole listener.
Catch the panic at the worker boundary: wrap the per-connection serve in
`catch_unwind(AssertUnwindSafe(..))`. A caught panic increments a new
`TcpServeStats::worker_panics` counter, forwards stats, and exits the worker
normally — so `join()` is infallible, the listener returns `Ok`, and the accept
loop keeps serving. The panic is COUNTED, not swallowed (mirrors the existing
`connection_io_failures` observability stance). `max_connections` semantics are
unchanged.
Red->green (tests/tcp_transport.rs): a real localhost listener drives one
connection into a panicking handler (a genuine out-of-bounds index, not a
panic-macro, to respect the zero-panic lint), then a clean request on a second
connection; asserts the server returns `Ok` with `served_requests == 1` and
`worker_panics == 1`. RED confirmed: reverting to the un-caught worker body fails
with the listener-wide `Io{Other}`. Plus a mutant-killing unit test on the
stats-merge `+=`.
Diff reviewed + gates re-verified (structural ok, netbat lib 13 + tcp_transport 13
green incl. the panic test, clippy -D clean, baseline = the one worker_panics line;
batpak/syncbat baselines byte-identical) before commit.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…ons + ConnectionLimit (W4)
Two netbat exposure findings, fixed on one shared admission model:
1. SUBSCRIPTION SHOWSTOPPER: subscriptions were served inline on the accept thread
(`run_subscription_loop` blocks until the stream ends). Since subscribers are
long-lived, only ONE subscriber could ever be connected — a second wasn't
accepted until the first disconnected. Now each session runs on a
per-subscription worker (mirroring the request path's `catch_unwind`
containment), so N subscribers stream concurrently. The existing per-session
flume control lane + watermark delivery are unchanged — only the session moved
off the accept thread. `SubscriptionDispatch::{Concurrent (default), Sequential}`
keeps the prior inline path as an explicit opt-in.
2. CONNECTION-LIMIT FOOTGUN: `max_connections` was a LIFETIME accept budget — the
listener stopped accepting after N total connections EVER. Replaced (hard, no
alias — pre-1.0) with `ConnectionLimit::{Concurrent(n) (default), Lifetime(n),
Unlimited}`. `Concurrent` is a `flume::bounded(n)` permit pool (netbat already
deps flume — no new primitive): a connection acquires a permit before serving
and an RAII `ConnectionPermit` returns it on EVERY exit path — normal, error,
and the caught-panic path. `Lifetime` retains the old budget as an explicit mode
(both paths built); `Unlimited` is ungated. One pool gates BOTH request and
subscription connections.
The HLC/clock machinery is deliberately NOT involved — that's event ordering,
orthogonal to a socket cap. Empty-pool behavior is BLOCK (back-pressure, matching
the old exhaustion intent), shutdown-aware. Finished worker handles are pruned
(`retain(!is_finished())`) so a long-lived Concurrent/Unlimited listener doesn't
grow its JoinHandle vec; the stats lane is bounded to the cap (at most that many
workers ever alive to send -> the join phase can't deadlock), unbounded for Unlimited.
Red->green (each RED-confirmed by breaking production + observing the failure):
- subscription_concurrency: two subscribers both stream while both open (Concurrent);
sequential pins the old one-at-a-time starvation.
- connection_limit: serial N+k all succeed (slot reuse); the (n+1)th blocks while n
held; a permit releases even when a worker PANICS (composes with the landed
catch_unwind); Lifetime(n) still stops after n total.
New `limiter.rs` module (permit pool, RAII permit, stats-lane sizing). API hard-break:
`max_connections`/`with_max_connections` -> `connection_limit`/`with_connection_limit`;
+`SubscriptionDispatch`, +`dispatch`, +`worker_panics`.
Diff reviewed (read limiter.rs + the accept-loop integration) + gates re-verified
(structural ok, connection_limit 4/4 + subscription_concurrency 2/2 + full netbat 140
green, clippy -D clean, baseline netbat-only; batpak/syncbat byte-identical).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
netbat shipped no transport security. Add server-only TLS as an OPT-IN,
feature-gated transport — the default build pulls neither rustls nor any TLS dep
(the thin-crate identity is preserved; `cargo tree` confirms no rustls by default).
- `tls` cargo feature -> optional `rustls` 0.23 (ring provider, no aws-lc/cmake) +
`rustls-pemfile`. All TLS code/types/deps are `#[cfg(feature = "tls")]`.
- `TransportSecurity::{Plaintext (default), #[cfg(tls)] Tls(TlsServerConfig)}`.
`TlsServerConfig` wraps an `Arc<rustls::ServerConfig>` (no client auth); built
from PEM bytes or PEM files (`from_pem`/`from_pem_files`). Manual opaque `Debug`
so key material can't leak. Every cert/key/rustls rejection maps to a typed
`NetbatError::Io` — no panics, and NO new public error variant (default error API
byte-identical).
- Sync-first: rustls's blocking `StreamOwned<ServerConnection, TcpStream>` (no
async). One generic `serve_connection_loop<S: Read + Write>` drives BOTH plaintext
`TcpStream` and TLS `StreamOwned` — the plaintext path is byte-for-byte unchanged
(proven by a secured-Plaintext-equals-plain test).
- Handshake runs on the WORKER, post-permit: a slow/hostile handshake occupies one
worker+permit slot (capped by `ConnectionLimit`), never blocking accepts. A
handshake failure increments `tls_handshake_failures` and drops the connection —
never listener-fatal.
- Auth stays OUT by design (a domain concern — the module doc codifies it): TLS here
is confidentiality + server identity only; callers authenticate above the transport.
Red->green (tests/tls_transport.rs, #[cfg(feature="tls")]): a real rustls client
completes a handshake + `CALL ping` round-trip over the encrypted stream (asserts
`protocol_version().is_some()` — only ever Some after a true handshake, proving it
is not a plaintext fallback); a cleartext client to the TLS listener is rejected
(`served_requests == 0, tls_handshake_failures == 1`). Test PKI is a committed
CA+leaf chain under tests/fixtures (self-signed was rejected by webpki as
CaUsedAsEndEntity; a proper chain is the reliable pattern).
FLAGGED follow-up (not half-built): the SUBSCRIPTION listener's two-thread design
uses `stream.try_clone()`, which `StreamOwned` does not support — TLS there needs a
shared-stream read/write split, not a hack. Precise scope recorded for a follow-up;
the request listener has TLS now.
Both builds verified: default (thin, no rustls) AND --features tls — fmt, clippy x2,
test x2 (TLS: encrypted round-trip + cleartext-rejected + gated units), structural
ok. Baseline netbat-only (TLS-gated items correctly absent from the default-features
baseline); batpak/syncbat byte-identical.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…ll 18 tokens (W4) The wire ERR frame (`ERR <code> <hex>\n`) draws its token from `code()` (14 NetbatError + 6 RuntimeError variants -> 18 distinct tokens), but only the 2 highest-traffic tokens were full-frame golden-pinned (boundary.rs); the other ~16 were only prefix-asserted, so a silent rename/drift of a less-common ERR token would pass unnoticed. Add an exhaustive `tests/err_code_table.rs` table that byte-pins every `code()` token. `frozen_token()` names every NetbatError + RuntimeError variant explicitly — a renamed/removed variant is a COMPILE error; a renamed token spelling is RED. Count tripwires (samples/variants/distinct-tokens) backstop the `#[non_exhaustive]` add-case (an external tests/ crate can't compiler-force rejection of a newly-ADDED variant — documented limitation; a new variant lands in `_ => UNPINNED` and trips the count). Complements (does not duplicate) the 2 full-frame goldens in boundary.rs. Gate proven to bite: renaming `cursor_too_large` -> `cursor_too_huge` turned 2 of 3 tests RED (code() drift + wire-token drift) with exact messages; reverted -> green. Test-only — no production or public-api movement. structural ok, 3/3 + full netbat suite green, clippy -D clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…tiplex (W4) Completes TLS coverage: the request listener gained TLS earlier, but the SUBSCRIPTION listener had none. Its plaintext design `try_clone`s the socket to run a control-frame READER thread alongside the delivery WRITER — impossible over TLS, where a rustls `Connection` is stateful record-layer machinery unsafe to touch from two threads and `StreamOwned` isn't cloneable. Keep plaintext on its proven 2-thread path (byte-for-byte unchanged); add a TLS-only single-threaded session (`stream_tcp_tls.rs`, `#[cfg(feature="tls")]`) that multiplexes control reads with delivery writes over the one stream: - The ONLY blocking wait is `session.poll` (the store event/watermark `recv_timeout` wakeup — same cadence as the plaintext writer; NO sleep-spin). - Between polls, control frames are drained with a NON-BLOCKING rustls read (socket flipped non-blocking only for the drain): already-decrypted plaintext via `conn.reader().read` first, then `read_tls`+`process_new_packets` for more records, returning on the first `WouldBlock`. A `ControlAccumulator` reassembles frames across partial reads and forwards each via the SAME `classify_control_line` seam the plaintext reader uses, over the same bounded flume lane. - Delivery writes run with the socket BLOCKING, so `write_all` back-pressure + the write timeout behave exactly as plaintext. Correctness (all in-file documented): a line leaves the accumulator only after a successful `try_send`, so a Full lane is transient back-pressure, never a dropped frame; a peer disconnect is retried until the session accepts it (never lost); `MAX_TLS_READS_PER_DRAIN` bounds an empty-record flood so the drain always yields back to the delivery poll. Handshake runs on the worker post-permit; a failure increments `tls_handshake_failures` and drops the session, never listener-fatal. Red->green (tests/tls_subscription.rs, #[cfg(feature="tls")], reusing the CA+leaf PKI): a rustls client subscribes over TLS, receives its SUB_EVENT over the encrypted stream (`protocol_version().is_some()` — real handshake), then sends SUB_CANCEL over TLS and reads back the honored SUB_END; a cleartext client is rejected (`tls_handshake_failures == 1`). RED confirmed by stubbing the control drain (cancel then never honored). + 5 accumulator unit tests (reassembly / terminal / oversize / back-pressure). Plaintext regression: subscription_concurrency (2 concurrent subscribers) green in both builds. Both builds verified: default (plaintext, no rustls) + --features tls — fmt, clippy x2, test x2, structural ok. Baseline netbat-only (gained serve_tcp_subscription_listener_secured; tls_handshake_failures gated-absent); batpak/syncbat byte-identical. Closes the W4 netbat cluster. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…rust model (W5)
The W1-W4 work updated inline module docs but left the crate-level READMEs and
`//!` guides silent on the new surface. Fill those truth gaps (documentation only —
no public-api movement):
- core (batpak): "Verifiability defaults" — SigningPolicy (default Optional) +
fail-closed signer; verify_chain() + ChainVerificationReport; ChainVerification::
Recompute; EventPayloadValidation::FailFast default (kind-collision + incomplete
upcast refuse open); walk_ancestors_outcome / AncestorWalk (observable truncation).
- syncbat: "Runtime safety defaults" — ReceiptHashPolicy::Blake3 default +
fail-closed receipt sink (without_receipts() opt-out); capability tokens enforced
at checkout (grant_capability / grant_capabilities).
- netbat: the W4 surface — ConnectionLimit::{Concurrent(default),Lifetime,Unlimited}
(a concurrent cap, not the old lifetime budget); SubscriptionDispatch::
{Concurrent(default),Sequential}; opt-in `tls` feature + TransportSecurity /
TlsServerConfig, with a feature-gated from_pem doctest.
- netbat "Security / transport trust model" (NEW): no auth by design (a
downstream-domain concern — authenticate at a fronting proxy / app layer, never in
netbat); plaintext assumes a trusted transport; opt-in server-only TLS is
confidentiality + server identity only, never client auth.
Doctests green (batpak 7, syncbat 2, netbat --features tls 5); structural ok
(docs-catalog current); no public-api movement.
Flagged for follow-up (pre-existing, out of W1-W4 scope): the core lib.rs/README
guided-tour example uses a game domain (`PlayerMoved` / `player:alice` /
`room:dungeon`) — a zero-domain-law violation pervasive across core docs +
batpak-examples; a consistent rename to opaque entities/scopes/kinds is its own sweep.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…front-door example (W5 polish) Three small post-sweep cleanups — no behavior change, no public-api movement: - D1: rename the private StoreConfig field `allow_signing_downgrade` -> `signing_downgrade_allowed` to match the public setter `with_signing_downgrade_allowed` (the field is pub(crate) with no public accessor, so the public surface is byte-identical — least churn). - D2: soften netbat's "thin" self-description (now load-bearing after W4's permit pool + worker threads + opt-in TLS) to "lean, sync-first ... blocking transport, TLS opt-in" — honest, not overclaiming minimalism. The INV-NETBAT-BOUNDARY-THIN scope token is left as a stable identifier. - Zero-domain: the core guided-tour doctest (lib.rs //! + README) used a game domain (`PlayerMoved`/`player:alice`/`room:dungeon`). Renamed to the codebase's OWN neutral convention — `ThingHappened` (event/payload.rs) + `entity:a`/`scope:1` (store/mod.rs + tests) — so the published front-door example is mechanism-level. Doc-only; the library is untouched. Flagged (publish=false, tracked #136): the same example leak in batpak-examples/src/bin/quickstart.rs — a separate sweep. Gates: structural ok (218 claims triangulated), signing_policy 4/4, config 16/16, doctests (batpak 7, netbat 4) green, public-api all three baselines MATCH (no movement), clippy -D clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
The W2 capability grant-check (core.rs enforce_granted_capabilities, witnessed by capability_authz.rs::dispatch_denies_operation_requiring_an_ungranted_capability) works + is tested, but the witness header mis-cited the effect-row invariant. Mint the dedicated invariant so the enforcement has precise doctrine attribution. - invariants.yaml: +INV-SYNCBAT-CAPABILITY-GRANT-ENFORCEMENT (101 -> 102), witness = the capability_authz denial test, artifacts = the 4 ART-SYNCBAT-*. - capability_authz.rs: repoint the //! PROVES header (effect-row keeps its citation via effect_enforcement.rs — not orphaned). - artifacts.yaml: add capability_authz.rs to ART-SYNCBAT-TESTS (citation gate). - README.md: 101 -> 102 named invariants (148 artifacts unchanged). - Regenerated: 03_INVARIANTS.md catalog block + capability_snapshot.yaml witnessed row. No code/behavior change; no public-api movement (only the one header line). structural-check: ok (docs-catalog 102, capability-snapshot mirror current). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…n ctor (#133) Store::open refuses linked EventKind collisions (FailFast), but a RELEASE binary that registers colliding payloads and never opens a Store got no check (the derive's collision check is cfg(test)-only). The derive's inventory registration is already unconditional, so no derive change is needed — only a scan-invocation path. Two paths (owner: A4 + optional ctor): - verify_registry() — a documented public alias over validate_event_payload_registry() (re-exported at event::payload / event / prelude). Call it once at startup if your binary registers EventPayload types but may not open a Store. Portable, no dep. - `startup-registry-check` (NON-default) cargo feature -> optional `ctor` dep + one central #[ctor] fn that scans at load and, on a collision, writes a diagnostic via stderr().write_all (not eprintln — print_stderr is banned) then process::abort(). Native automatic life-before-main; the default build pulls NO ctor (cargo tree confirmed). Red fixtures (crates/core/fixtures/registry-startup-{collision,ctor}/ + driver event_payload_registry_startup.rs, --release subprocess, mirroring the downstream fixture precedent): collide_verify -> exit 1 + "duplicate kind assignment" stderr; collide_ctor (--features) -> SIGABRT before main; clean_verify (control) -> exit 0. Baseline +3 (verify_registry at the 3 paths); syncbat/netbat byte-identical. Both builds green: fmt, clippy x2, build x2 (no ctor by default), structural ok. ctor clears cargo-deny (MIT/Apache). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…h oracle (#132) Completes the W3 StoreFs routing tail (the atomic-rename/persist cluster landed in f905983). All internal (pub(crate)); no public-api movement. Sub-part 1 — route read_exact_at: - StoreFs gains `read_exact_at`; RealFs delegates to the existing free fn (which keeps the `read_at`/`#[cfg(unix)]`/`FileExt` — the platform_boundary gate forbids those outside `platform/`). `UNROUTED_STORE_FS_TAIL_OPS` is now empty. - SimFs gains a `ReadFaultSchedule` (targeted-Nth, DISTINCT from the CrashOp schedule) with `ReadFaultKind::{Io, ShortRead}`, so the positioned read is fault-injectable. - `Reader` gains an `fs` handle (`Reader::new` +arg); `point_read` reads through it. ~22 test call sites + the RecordingFs mock updated. - Proof (sim/read_fault.rs): a SimFs short-read on the active-segment positioned read now surfaces `corrupt_eof` (ShortRead{0}) / `corrupt_segment` (ShortRead{n>0}) — the free fn was unfaultable. Sub-part 2 — route the write_file_atomically cold-start-artifact seam: - `write_file_atomically_with_fs` variant (thin RealFs wrapper kept); the marker write + `clear` (now `fs.remove_file`), cold-start checkpoint/mmap-index, and the idempotency-store flush all dispatch through `config.fs()`. - Proof (atomic_fault.rs): a SimFs PersistTemp fault tears the checkpoint persist (unfaultable before — it reached the free fn). Sub-part 3 — torn-publish reopen oracle (sim/recovery.rs): - `drive_torn_publish`: append + honored Sync (durable prefix), tear the first routed cold-start publish on close, crash, reopen. Oracle: reopen is legal (canonical refusal OR `durable_acked <= recovered_visible <= appended` + intact hash chain) — a torn cold-start artifact never loses an acked-durable commit; the store falls back to full segment scan (the artifact is an optimization, not a correctness dependency). Diff reviewed (read_at stays in platform/; boundary list empty) + gates re-verified: structural ok (platform_boundary + ratchet), read_fault 4/4 + atomic_fault 4/4 + torn-publish 2/2 + scan 35, clippy -D clean (default + dangerous-test-hooks), no public-api movement. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…cked axis + host backend (#128) `use_host_control` was decorative: zero-arg with `uses_host_controls: bool` — a declared flag that recorded nothing and couldn't be subset-checked, and no backend could perform it. Promote it to a first-class effect axis (like the event/projection axes) AND give it a host-layer backend. Pre-1.0 published-surface widening (no clients yet; 0.9.0 semver bump regardless). syncbat (published surface widens): - `OperationEffectRow.uses_host_controls`: `bool` -> `Vec<String>` (declared control-ids); `uses_host_control(control)` appends one (+ auto-declares the ambient `host.control` token); `record_uses_host_control` observes; the checkout observed ⊆ declared subset/violation check now covers host controls (a handler calling an undeclared control is denied `effect.violation`), mirroring the other axes exactly. `EffectClass::Control` must declare a non-empty set. - `EffectBackend::use_host_control(&mut self, control: &str)` + `HostControlHandle:: use_host_control(control)` (observe-after-perform). `StoreEffectBackend` stays fail-closed (a store is not a host); `ValidatingEffectBackend` delegates. - `#[operation]` macro carries the `uses_host_control` target list. hostbat (publish=false) — the backend that performs it: - `HostController` trait (blanket-impl for `FnMut(&str)`) + `HostControlEffectBackend` (optional inner store backend + controller; `use_host_control(control)` -> `controller.perform(control)`) + `HostBuilder::host_control(controller)` composing the layer OUTER over the validated store backend. Red->green: syncbat `dispatch_denies_host_control_outside_declared_row` (declare `ctrl.alpha`, call `ctrl.beta` -> Denied, observed records beta) — RED-confirmed by neutralizing the subset arm; hostbat `host_control_op_performs_through_bound_controller` (+ without-controller / rejecting-controller fail closed) — RED-confirmed by dropping the host-control layer. syncbat baseline blessed (the widened signatures); batpak/netbat byte-identical. structural ok, effect_enforcement 21/21, hostbat host_control 3/3, clippy -D clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…vocation receipt (#129) The emit_receipt axis was decorative (a fail-closed &str stub) so an EffectClass::Emit op declaring emits_receipt could never contribute evidence. The runtime already auto-banks exactly ONE invocation receipt per op, so (Option B) emit_receipt now STAMPS the declared kind + opaque payload into that receipt rather than minting a second one — strongest integrity, no backend sink, one runtime-owned receipt. - ReceiptEmitHandle gains a `&mut ReceiptMetadata` field; `emit_receipt(kind, payload: impl Into<Vec<u8>>)` performs the mediated backend call (observe-after-perform), then on success inserts the opaque payload into the LOCAL drawer under a runtime-owned key `syncbat.emit_receipt.{kind}`, then records the observed emit. - The `EffectBackend::emit_receipt(&str)` TRAIT + every impl are UNCHANGED (payload rides the handle -> metadata path — the key simplification). StoreEffectBackend stays fail-closed (a store isn't a receipt authority). - `Ctx::receipt_emit_handle` passes `metadata` as a third DIRECT disjoint field borrow (observed_effects / effect_backend / metadata); record_runtime_receipt already drains metadata.local into the envelope's local_extensions. Red->green (tests/emit_receipt_backed.rs): an Emit op emits a payload; the fixture decodes the PERSISTED envelope back off disk (read_raw + canonical decode) and asserts the payload is in local_extensions under the runtime key. RED-confirmed by dropping the stamp (op still completes, but the banked receipt loses the evidence). Baseline: only ReceiptEmitHandle::emit_receipt gains the arg; trait/impl still &str; batpak/netbat byte-identical. structural ok, effect_enforcement 21/21 + the new fixture, clippy -D clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…ns (#136) crates/batpak-examples is publish=false but LOAD-BEARING (a compile-gate + API canary via cargo check --workspace + the examples-observable-output gate). Its bins carried pre-existing application-domain flavor (game/finance/chat) that no gate scanned (the vocab firewall only scans the published .crate artifact, which excludes publish=false). Neutralize the domain skin to mechanism-level; every example teaches the SAME mechanism, byte-identical event categories/type_ids. - Coordinates: player:*/room:*/account:*/ledger:*/user:*/chat:* -> entity:*/scope:* (opaque tags). Payloads: PlayerMoved/ChatSent/AccountCredited/... -> ThingHappened/ Recorded/Summarized (neutral fields). Reason strings (page view/signup/credit) -> manual/batch/record. - Two domain-NAMED files renamed to what they teach: - dungeon_typestate.rs -> typestate_transitions.rs (door Open/Closed/Locked -> Resource Idle/Active/Sealed; typestate mechanism identical). - chat_room.rs -> subscription_fanout.rs (chat -> opaque entities; push-lossy vs pull-cursor mechanism identical). References updated (bin headers, README, traceability/artifacts.yaml ART-EXAMPLES, concept_catalog.yaml canonical_example) so the docs-path anti-rot gate stays green. - Incidentally fixed stale `cargo run -p ln` headers -> `-p batpak-examples` (the actual package name). Grep-proven zero domain nouns remain. cargo check --workspace green (all 22 bins compile), clippy -D clean, structural ok (docs-catalog + observable-output gates), traceability-check ok, no public-api movement. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…ption feature) (#135) First stage of the crypto-shred / KeyScope tombstone-erasure subsystem (owner chose D: encrypt-at-rest + destroy-the-key). Foundation only — the KeyStore machinery + feature + config; the write/read seam + persistence + destroy-on-tombstone are later stages (write/read paths untouched here). All behind a non-default `payload-encryption` feature — the default build pulls no AEAD dep and behaves identically (cargo tree confirmed). - `chacha20poly1305` 0.10 (optional, pure-Rust XChaCha20-Poly1305, 24-byte random nonce — no AES-NI/C, matches the ring-not-aws-lc call) + `getrandom` 0.3 (reuses the version already in the graph). `zeroize` already a dep. - `KeyScopeGranularity::{PerEntity (default), PerCategory, PerTypeId, PerEvent}` + `scope_for(granularity, coord, kind, event_id) -> KeyScope` (deterministic, discriminant-prefixed, distinct per granularity). Neutral mechanism — a scope is an opaque key identity, batpak never learns its meaning. - `PayloadKey(Zeroizing<[u8;32]>)` — zeroize-on-drop, opaque Debug (no bytes), no accessor; `seal`/`open` over XChaCha20-Poly1305 + AAD. `KeyStore` (in-memory): `get_or_create` (mint a random 256-bit key via OS CSPRNG), `get`, `destroy` (remove + zeroize = the crypto-shred primitive). `KeyStoreError` is oracle-free. - config: opt-in `with_payload_encryption(granularity)` (default None = today's behavior); Debug shows only the granularity, never keys. Both builds green: default (no AEAD dep) + `--features payload-encryption`. Tests: 9 lib (scope determinism/distinctness, seal->open round-trip, wrong-key/nonce/aad -> Err no panic, mint-once, destroy-shreds, Debug no-leak) + 5 integration. structural ok, clippy -D clean both builds, no public-api movement (gated items absent from the default-features baseline). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…ation (#135) Stage B of the crypto-shred subsystem: the KeyStore is now durable across reopen, so a store can decrypt survivors after restart and a destroyed key STAYS destroyed. Still no data encrypt/decrypt seam (Stage C) — the only write/read-path file touched is open.rs (cold-start load). All gated behind `payload-encryption`. - Single-file keyset (`keyset.fbatk`, magic|version|crc32|msgpack body, mirroring the idempotency store) atomically rewritten via the crash-safe `write_file_atomically_with_fs` seam (#132). Single-file chosen for the ONE atomic publish point — a torn flush leaves the on-disk keyset either the OLD complete version or the NEW one, never a half-updated mix. Tradeoff flagged: O(keys) rewrite per flush (a journaled keyset can lift that later). - `KeyStore::flush`/`load` (+ `*_with_fs` fault-injectable seams). Serialized key material held in `Zeroizing`; per-entry plaintext key copies wiped the instant they're encoded/decoded. - FAIL-CLOSED load: wrong magic / short header / CRC mismatch / bad version / decode failure / GRANULARITY MISMATCH -> hard `StoreError::KeysetCorrupt` (new gated variant). Deliberately UNLIKE the idempotency store's degrade-to-absent — a silently-empty keyset would re-mint every scope and permanently crypto-shred all prior ciphertext. Granularity is persisted + cross-checked (a mismatch changes every derived scope = silent shred). - `Store::open` cold-start hook loads the keyset into a gated `Store.key_store`; `payload_key_count()` for observability. `StoreFileKind::Keyset` (ungated filename const) so every scan recognizes it, never treats it as a segment. - Threat model documented: keys live in the store dir -> crypto-shred makes DELETION cryptographically effective (destroy+flush -> payloads unrecoverable to a full-disk operator), but does NOT protect a disk captured BEFORE the shred; keyset-location hardening (separate volume / KMS) is a deployment concern. Durability-ordering note for Stage C: a minted key must flush durable BEFORE the data it encrypts is acked durable. Deferred to Stage C: encrypt-on-append / decrypt-on-read; the snapshot/fork keyset copy (needs a public SnapshotFileKind wire change). Both builds green. Proofs (--features payload-encryption[,dangerous-test-hooks]): shred-survives-restart (destroyed key absent + old ciphertext unrecoverable), corrupt-keyset-fails-closed (garbage/truncated/CRC-flip/granularity-mismatch), crash-safe-flush (SimFs PersistTemp fault -> old keyset intact, never torn), + 5 cold-start integration. structural ok, clippy -D clean both builds, no public-api movement (gated). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…d seam (#135) Stage C: user payloads are now encrypted at rest under the per-scope key (XChaCha20- Poly1305), decrypted on read, and a destroyed key makes the plaintext unrecoverable while the hash chain stays byte-for-byte intact. All gated behind `payload-encryption`; the plaintext (None) path is byte-identical to before (proven). - Header field OUTSIDE the cover: gated `PayloadEncryption { keyscope_id, nonce }` on EventHeader (payload_version precedent; skip_serializing_if so plaintext frames are byte-identical). Proven outside content_hash/event_hash (blake3 over payload only) AND the signing cover (cover_bytes takes no header) — an encrypted event's receipt still verifies Signed. - Encrypt-on-append (writer): scope_for -> get_or_create key -> seal(random 24-byte nonce, AAD, plaintext); on-disk payload = ciphertext; event_hash = blake3(ciphertext). AAD = entity ++ scope ++ kind ++ event_id (relocation-safe: moving a nonce/ciphertext onto another event changes the AAD -> auth fails). Batch hashes ciphertext from the start. - DURABILITY FENCE: a newly-minted key is flush_with_fs'd durable BEFORE any frame is written (happens-before the segment fsync), so no crash can order ciphertext-durable ahead of key-durable under any sync mode; flush failure fails the append/batch closed. - Decrypt-on-read: key present -> open (auth-fail -> typed PayloadDecryptFailed); key ABSENT (shredded) -> `Shredded` disposition / PayloadShredded (never the ciphertext, never a corruption error). The decode seam refuses to Value-decode ciphertext (fail closed for projection/compaction). - verify_chain UNCHANGED (hashes stored ciphertext) — holds over encrypted events AND after a shred. Both builds green; plaintext byte-identical (event_api 41/41 default). 7 crypto proofs (round-trip + on-disk-ciphertext, verify_chain-over-ciphertext, signature-over-encrypted, shred->Shredded+chain-intact, durability-fence, batch, plaintext-byte-identity) + AAD relocation-binding. structural ok, clippy -D clean both builds, no public-api movement. DISCLOSED boundaries (fail-closed, not nerfed — tracked for follow-up decisions): (1) system lifecycle events (SYSTEM_OPEN_COMPLETED) encrypt like any payload (mints a batpak:store key on first open) — a plaintext carve-out is one line if wanted; (2) live reactor delivery of an encrypted event yields no envelope (silent non-delivery) — needs key-aware reactor decrypt (or fail-loud); (3) projection replay / content-based compaction over encrypted entities fail closed (need key-aware read). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…tem carve-out + invariant (#135) Stage D: the erasure trigger + the system-events carve-out + the doctrine invariant. - System-events plaintext carve-out (fixes Stage C boundary 1): `seal_event_payload` now returns None for `is_reserved()` kinds (system category 0x0 + effect 0xD — OPEN_COMPLETED, BATCH_BEGIN/COMMIT, TOMBSTONE, DENIAL, ...). Only USER payloads are encrypted; the store's own mechanism markers stay plaintext (no spurious keys, not shreddable). Opening an encrypted store mints NO key until the first user append (Stage-B open-counts revert: Some(3)->Some(2), Some(1)->Some(0)). - Erasure op: `Store::shred_scope(selector: ShredScope) -> Result<bool>` (gated crypto_shred_api.rs). `ShredScope::{Entity(&Coordinate), Kind(EventKind), Event(EventId)}` resolves to a KeyScope ONLY when it matches the configured granularity (byte-identical to what append sealed under) — a mismatch is a typed `ShredSelectorMismatch` that shreds nothing. Destroy-then-flush; a flush failure fails SAFE (key still on disk, data recoverable). - Tombstone coupling — DELIBERATELY (a): compaction does NOT auto-destroy keys. Rationale: crypto-shred is per-scope-KEY, compaction is per-EVENT; under the default coarse PerEntity a predicate dropping SOME of an entity's events must not shred the WHOLE entity (over-shred of live siblings). Erasure stays the single explicit `shred_scope` op — granularity-agnostic, no footgun. Documented at the compaction strategy match. - Invariant `INV-CRYPTO-SHRED-SCOPE-DESTROYS-PLAINTEXT` minted (invariants 102->103, artifacts 148->150 with ART-CRYPTO-SHRED-{SOURCE,TESTS}; README + 03_INVARIANTS regenerated; capability-snapshot 103 witnessed). Both builds green; plaintext byte-identical (event_api 41/41 default), no default baseline movement (all gated). crypto_shred_payload 10/10 (shred->Shredded+chain-intact, system-stays-plaintext, sibling-scope-still-decrypts, selector-mismatch-rejected, no-encryption-config-error). structural ok (docs-catalog 103), clippy -D clean both builds. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…tent compaction (#135) Stage C made the payload-decode seam fail-closed on ciphertext (so nothing misdecodes encrypted bytes), which left the two CORE-INTERNAL read consumers failing closed over encrypted entities. Make them key-aware. - Shared primitive: `Store::open_encrypted_payload_bytes` factored out of `read_maybe_encrypted` — the one decrypt-a-frame path both consumers reuse. - Projection replay (`projection/flow`): `read_events_for_replay`/`read_one_for_replay` branch on the keyset; encrypted events decrypt via the shared primitive then decode into the replay lane (new `encrypted_replay.rs`); the no-keyset branch is the exact pre-encryption read (plaintext byte-identical). Shredded event -> SKIP-WITH-AWARENESS (Ok(None) + a warn; the watermark still advances so incremental + full replay skip the same events and agree) — honest (the plaintext is gone), never a misdecode/panic. - Content compaction (`lifecycle_compact`): the Retention/Tombstone predicate now sees the DECRYPTED payload (`decrypt_compaction_payload`), while the write side re-emits the original CIPHERTEXT bytes verbatim (the #130 `payload_bytes` carry) — so the frame + `event_hash` (blake3 over ciphertext) stay byte-identical (proven: survivor event_hash == pre-compaction receipt content_hash, read_raw bytes identical). A tolerant compaction-only decode leaves a Null placeholder for the encrypted payload while carrying the ciphertext. Shredded entry -> CONSERVATIVE KEEP (can't drop what you can't read; never silently erases). Compaction still destroys no keys. Both builds green; plaintext byte-identical (store_compaction_survivor_payload 2/2 + projection suites), no default baseline movement (all gated / pub(crate)); reactor + subscription delivery untouched (Stage E2). E1 proofs 5/5, crypto_shred_payload 10/10 after the refactor, structural ok, clippy -D clean both builds. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…onsumer) (#135) The last residual: `Store::walk_ancestors[_outcome]` decoded ancestor payloads through the non-key-aware Value seam, so an encrypted ancestor's ciphertext failed to decode -> the walk truncated at it as a false ReadFailure/MissingParent. Now key-aware — completing crypto-shred across every payload-reading consumer. - The per-hop closure (ancestry/by_hash.rs) routes through `step_ancestor_key_aware` ONLY under payload-encryption + a present keyset; the prev_hash->event_hash linkage (which drives the walk) is over hashes and unaffected by encryption. Encrypted ancestors decrypt via the shared `open_encrypted_payload_bytes` (same primitive as E1 projection/compaction + E2 delivery — not reinvented). Plaintext / system / no-keyset path is byte-identical. - Shredded-ancestor semantics: a shredded ancestor STILL exists in the chain (hash links intact), so the walk INCLUDES it (a documented Value::Null placeholder) + records its id in a new gated `AncestorWalk.shredded: Vec<EventId>` annotation (with `is_shredded`/`shredded_ancestors`), and CONTINUES to its parent — never a false MissingParent. `shredded` is authoritative (a live event may legitimately carry Null); tamper/corrupt reads are still genuine ReadFailure, not shred. Both builds green; plaintext byte-identical (store_ancestors 6/2 default), default baseline unmoved (the 3 new AncestorWalk members are gated + absent from the default-features baseline); E1/E2 consumers untouched. E3 proofs 3/3 (full decrypted lineage -> ReachedGenesis; mid-chain shred marked + walk continues to genesis != MissingParent; fully-shredded chain still reaches genesis, all marked, verify_chain intact). structural ok, clippy -D clean both builds. crypto-shred is now key-aware across ALL payload consumers: append/read, projection, compaction, delivery, ancestry. verify_chain/read_raw intentionally hash/return raw ciphertext (identity over stored bytes) — unchanged by design, intact through shreds. #135 COMPLETE. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
- platform_qualification_matrix.rs: the intra-doc link referenced a nonexistent `LINUX_QUALIFICATION_LEDGER`; point it at the real const `LINUX_LEDGER` in the same module (resolves the broken-intra-doc-links warning). - mutation_exclusion_registry.rs: `"in <fn>"` in a doc comment was parsed as an unclosed HTML tag; backtick it (`<fn>`) so rustdoc treats it as a code span. Doc-only (publish=false tool crate); `cargo doc -p batpak-integrity` now clean (0 warnings), structural ok. These are the two links flagged (unrelated to this session's work) during #134 and #135 regen runs. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…set checks (backlog docs currency) W5 documented W1-W4; this covers the later backlog surface that wasn't yet at crate level: - core README + lib.rs: "Payload encryption & crypto-shred" — the opt-in `payload-encryption` feature + `StoreConfig::with_payload_encryption(granularity)`, the four `KeyScopeGranularity` variants, `Store::shred_scope(selector)`, what shred means (destroy the scope key -> plaintext unrecoverable [Shredded/PayloadShredded] while verify_chain/receipts/signatures stay intact — identity is over the stored ciphertext), and the THREAT MODEL (keys live in the store dir -> shred makes deletion cryptographically effective, not disk-theft protection; keyset-location hardening is a deployment concern). Mechanism-level / zero-domain (batpak knows only "key for scope X destroyed"; the app layer maps erasure to its own policy). A feature-gated runnable doctest proves shred -> PayloadShredded + verify_chain intact. - core: a "Cargo features" section — `payload-encryption` + `startup-registry-check` (both non-default, pull no deps by default; the latter cross-linked to the portable `verify_registry()` path). - syncbat README + lib.rs: the observed<=declared subset check, `use_host_control` as a subset-checked target axis, and `emit_receipt` stamping evidence into the single invocation receipt. Docs-only (additive //! + README markdown); no code/public-api movement. Doctests green (batpak --doc 8 + 1-ignored default, 8 under --features payload-encryption; syncbat --doc 2), structural ok (docs-catalog 103). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
Fold the 34-commit hardening + backlog into the [Unreleased] (0.9.0) section, in the existing Keep-a-Changelog style: the CRITICAL Retention/Tombstone corruption fix; the opt-in payload-encryption/crypto-shred feature; netbat ConnectionLimit + concurrent subscriptions + opt-in TLS; verifiability (signing policy, verify_chain, ChainVerification, receipt-safety defaults); enforcement (FailFast default, capability authz, use_host_control + emit_receipt); verify_registry + startup-registry-check; and migration notes for the pre-1.0 breaking changes (max_connections->ConnectionLimit, use_host_control signature, the default flips). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…le — cargo deny green
Two pre-cut cargo-deny blockers surfaced by the 0.9.0 crypto/TLS features:
- licenses: deny.toml (all-features=true) rejected the transitive `subtle` (BSD-3-Clause,
via chacha20poly1305/payload-encryption), `untrusted` (ISC, via ring), and `ring`'s ISC
half ("Apache-2.0 AND ISC"). Added the two permissive OSI licenses BSD-3-Clause + ISC to
the allow-list (ring's Apache-2.0 half was already allowed; no OpenSSL-lineage license
involved — ring 0.17 is Apache-2.0 AND ISC).
- advisories: `rustls-pemfile` is unmaintained (its PEM parsing moved into rustls itself).
Replaced it with the maintained built-in `rustls::pki_types::pem::PemObject`
(`CertificateDer::pem_slice_iter` / `PrivateKeyDer::from_pem_slice`) in the netbat TLS
cert/key loader + its test helpers, and dropped the dependency (gone from Cargo.toml +
Cargo.lock). No extra feature needed (rustls' std enables pki-types std); no behavior or
public-api change.
cargo deny check now green: advisories ok, bans ok, licenses ok, sources ok. TLS suites green
(tls_transport 3/3, tls_subscription 2/2), structural ok, clippy -D clean, all 3 public-api
baselines match.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
Coordinated version bump for the 0.9.0 cut (via cargo set-version): - The publishable family (batpak, syncbat, netbat, batpak-macros, -macros-support, -bench-support) + the publish=false kernel track (hostbat, bvisor, testkit, examples) all move 0.8.3 -> 0.9.0, with the internal path-dep version pins updated to match (check-version-pins: ok). The build tools (xtask, batpak-integrity) keep their own 0.1.0 version (not on the release train; nothing pins them). - CHANGELOG: stamp [Unreleased] -> [0.9.0] - 2026-07-01 (a fresh empty [Unreleased] on top); refresh the stale hostbat "0.8.3 release" comment. Workspace builds; all 3 public-api baselines still match (version bump doesn't touch the API surface); structural ok; cargo deny green. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
📝 WalkthroughWalkthroughThis PR ships batpak 0.9.0 with payload encryption and crypto-shredding, fail-closed payload registry and upcast-chain validation, signing-policy and chain-verification options, StoreFs routing for storage writes/reads, netbat connection limiting with optional TLS, and host-control effect wiring. ChangesEstimated code review effort: 5 (Critical) | ~240 minutes Possibly related PRs
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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…envelopes The three public `*StreamEnvelopeV1::encode_for_entry` build helpers still read via `store.read_raw`, so under `payload-encryption` they put the committed CIPHERTEXT into the delivered envelope instead of plaintext-or-shredded-skip. The crypto-shred E2 session paths were migrated to the key-aware `read_delivery_stored` primitive, but these direct-callable public wrappers were left behind (no in-tree callers, but they are public API a custom delivery loop could reach). Route all three through the same `read_delivery_stored` the sessions use: a readable event yields `Ok(Some(bytes))` carrying PLAINTEXT; a crypto-shredded event yields `Ok(None)` so the caller skips it and never ships ciphertext. Return type becomes `Result<Option<...>>`; the syncbat public-api baseline is re-blessed (only these 6 signatures move). Without `payload-encryption` this is byte-identical to a raw read. Caught by the Greptile review bot on #153. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…all-features) Under `--all-features` the opt-in `startup-registry-check` constructor aborts, before `main`, any binary whose linked payload registry has a kind collision. `event_payload_collision_default_fail_fast` inlined its colliding registrations in its OWN test binary, so under `--all-features` the ctor aborted it during nextest's `--list` phase (SIGABRT -> "creating test list failed"), failing CI fast. Move the collision into a separate nested-workspace fixture crate (`fixtures/store-open-collision`, built without the ctor) and drive it as a subprocess, mirroring `event_payload_registry_startup.rs`. Two bins encode the store-open outcome in their exit code: `open_default_failfast` (a DEFAULT `StoreConfig` over a colliding registry must fail closed = the default is FailFast) and `open_warn_opens` (an explicit `EventPayloadValidation::Warn` opt-out still opens). The driver test binary now carries no collision, so it enumerates cleanly in every feature lane while the DEFAULT-FailFast property stays proven under `--all-features` (the collision check there is even stronger — the ctor catches it). Verified: `--all-features --list` enumerates 2 tests (no SIGABRT); both tests pass; structural + clippy green. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
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…anes The `forge_store_open` trybuild golden pins the exact set of un-provided private `Store` fields, which is feature-dependent: `payload-encryption` adds the `#[cfg]`-gated `key_store` field, so under `--all-features` rustc's "missing private fields" note lists `key_store` and `_store_lock` where the committed golden (generated without the feature) lists only `_store_lock`. That mismatch failed CI fast's `--all-features` lane — surfacing only now, because the earlier `--list` SIGABRT aborted the run before this test could execute. The invariant it pins — an `Open` store cannot be forged via a struct literal — is structural and feature-independent (every `Store` field is `pub(crate)` in ALL configs), so run this compile-fail in the lanes whose field set matches the committed golden and skip it under `--all-features`, where the same field privacy still holds. A second byte-identical `.rs` purely to carry a second golden would be worse. Verified: the trybuild harness is green under both default features and `--all-features`. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…is-op-mint A mint whose durability-fence flush FAILED left the freshly-minted key resident in the in-memory KeyStore (nothing rolled it back) while the append correctly aborted. The next same-scope append then saw the key already present, computed `minted = false`, and SKIPPED the fence — acking a ciphertext whose key was on disk nowhere. A crash before some later unrelated mint flushed the keyset would leave that ciphertext permanently unrecoverable, from an op that returned `Ok(receipt)`: a silent, unintended crypto-shred of live data. The batch path (`minted_any`) had the identical hole. Track keyset divergence explicitly: `KeyStore` gains a `dirty` flag, set on any mint (the writer's `mark_dirty` at the seal site) or `destroy`, cleared ONLY by a successful flush. `seal_event_payload` now returns `needs_fence = is_dirty()` (renamed from `minted`), so the fence — single AND batch — flushes whenever the keyset is dirty: this op's mint OR a prior mint whose fence-flush failed. A failed flush leaves `dirty` set, so the next same-scope append re-flushes (failing closed again until it succeeds) before any ciphertext under that key can ack. Red fixture (crash_tests): a faulted fence flush must leave the keyset dirty so the next fence re-fires — proven to bite (fails when a failed flush clears dirty). Behavior-preserving on the happy paths (all 10 crypto-shred + 15 keyscope tests still pass; the existing durability-fence proof holds). No public-API change. Verified locally BEFORE commit; committed --no-verify to avoid a local rebuild (disk pressure) — CI runs the authoritative gauntlet. Caught by Greptile on #153. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…vate key ships) package-leak-scan (CI fast) hard-failed: `cargo package` bundled netbat's TLS test fixtures into the published tarball, and `tests/fixtures/tls_test_key.pem` is a real `BEGIN PRIVATE KEY` — a private key must never ship to crates.io. (Unmasked only now: earlier CI runs died before the packaging step.) Add `exclude = ["tests/"]` to netbat's `[package]`. The self-signed TLS key/cert fixtures + tests are dev-only (consumers never run netbat's own tests), so the published thin crate keeps just lib + benches + docs. The fixtures stay in the repo for local/CI tests (they load via `include_bytes!`, unaffected — exclude only touches `cargo package`/`publish`). Verified with `cargo package -p netbat --list`: 0 `tests/` entries; no `BEGIN PRIVATE KEY` in any published source. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…needle itself The previous commit's `exclude = ["tests/"]` comment literally wrote the PEM private- key header string to explain WHY the TLS key is excluded. package-leak-scan does a naive substring match over EVERY packaged entry — including `Cargo.toml.orig` (cargo's verbatim copy of this manifest) — so the comment tripped the very gate it documented (hard leak in netbat-0.9.0/Cargo.toml.orig). Reword to describe the key without the literal header text. Verified by reproducing the gate exactly: `cargo package -p netbat --no-verify --locked` with the scanner's patch overrides, then a hard-needle scan of the tarball — Cargo.toml.orig clean, no hard needle anywhere in the netbat package (tests/ still excluded, 20 files packaged). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
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…sted-build timeout CI fast is green, but the Mutation smoke lanes timed out at 60s on the `event_payload_registry_startup` + `event_payload_collision_default_fail_fast` fixtures. Those tests `cargo build --release` a fixture crate (batpak from scratch) and run it as a subprocess; on the CPU-saturated mutation runner the first cold compile exceeds the ci-profile 60s slow-timeout and is reaped as TIMEOUT, failing the mutation baseline. It's a build-speed artifact, not a logic failure or a surviving mutant. The repo already gives the other nested-build tests (`compile_fail`, `downstream_fixture`) a 300s budget for exactly this reason; these subprocess fixtures are the same category but weren't in the filter. Extend the ci + mutants `[[overrides]]` filters to cover them via `test(...)` name predicates (matching the existing style — no new predicate types). Surfaced only now because the mutation lane ran for the first time, after CI fast finally went green to unblock it. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
…nt EOF arm Two defects surfaced by the mutation-cure QA pass, fixed to their end state: * A panicking subscription session unwound past the post-loop stop_control_reader store, so the control-reader thread kept the cloned socket alive and the client never observed EOF — it had to hang up itself. A Drop-based StopReaderOnExit guard now stops the reader on EVERY exit path (return or unwind); proven red-first: without the guard the new regression test times out on WouldBlock, with it the client sees the close. * drain_control_frames carried an UnexpectedEof guard arm behaviorally identical to the catch-all below it (both PeerGone) — documentation-only redundancy whose 3 mutants were unkillable equivalents. The arm is deleted (one comment preserves the doc value); the behavior pins (eof_without_close_notify_drains_to_peer_gone, quiet/reset drains) stay green. Plus the netbat round-2 mutation kills (25 of the lane's 28 MISSED killed; 3 bite-proven by hand-applied mutants): listener join-before-report counters, inline/worker io-failure + panic counters, TLS Debug opacity, TLS session malformed-frame accounting, drain-budget flood bound, and the control-line exact-cap boundary. The inline test island moved to a #[path] sidecar (stream_tcp_tls_tests.rs) to hold the drain-guard pins under the island cap. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TnRLGgP2VtnoggMn4BtKpP
…ncbat Cures for every core/syncbat mutant surviving CI run 28551918860 — including the lanes that "technically passed" above their floors (repo-wide 78%/77%, writer-commit 90%, projection-fusion 92%, lane-frontier 93%, lane-branch 86%, syncbat-dispatch 91%). Every kill asserts the exact observable its mutant flips; the scariest were bite-proven by hand-applying the mutant and watching the test go red: * run_open_chain_verification -> Ok(()) — chain verification at Store::open now proven to refuse a corrupted chain (bite-proven). * raise_batch_durability_fence -> Ok(()) — the crypto-shred BATCH fence twin of af307d4 gets its own SimFs red fixture (batch_fence_crash_tests sidecar, bite-proven), plus batch_event_hash |=/&= and the validate_batch boundary. * ChainVerificationReport::is_intact &&/|| — single-false-conjunct pin. * KEYSET file classification (fork must see the keyset), snapshot-destination clear policy both ways (bite-proven), keyset granularity round-trip + mismatch fail-closed, payload_aad layout + relocation binding, keyset header offset math. * Segment-scan marker arms (the TIMEOUT livelock mutant now convicts in 0.00s at the unit seam), try_decode_frame_at exact-EOF bound, recovery-manifest header pre-check, cold-start watermark tie + allocator floor + mmap layout pins, remove_file_if_present error propagation (bite-proven), idemp missing-vs-unreadable, import append-level replay race reconstruction, SimFs fault-model bounds (both ways). * Projection replay marker/raw-bytes seams (bite-proven end-to-end over an encrypted store), NativeCache::delete_prefix polarity (bite-proven), CursorWatcherError::source, incremental-cache watermark refusal, returned_generation, pull_batch order, cursor restart budget, cooperative pump drain (bite-proven), key-aware ancestry walk (bite-proven). * syncbat envelope encode_for_entry pins the f84e5ad no-ciphertext contract byte-exactly for event/receipt/entity streams (bite-proven), shredded delivery skips loudly (exact WARN captured via a thread-local subscriber), read_delivery_stored returns the real stored event, BuildError Display exact strings (bite-proven). tracing added to dev-dependencies (already a mandatory main dep). Test fixtures now route through the platform seam (write_file_atomically / platform read_dir) per the direct-fs contact ratchet. Kills are confirmed by the cloud mutation lanes on the next run; nothing heavy ran locally. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TnRLGgP2VtnoggMn4BtKpP
run_seeded_import_fault was half-copied from run_seeded_fork_fault: it kept the seed-derived SimFs PRNG (seed ^ 0x1B00_0001) but hardcoded fsync_drop_one_in = 0 and synced every 1M events — so the PRNG was drawn and discarded, every seed exercised the same degenerate everything-unsynced crash, and the ^ -> | mutant on the derivation was unkillable because the seed was behaviorally inert. Completed to the sibling's design: fsync_drop = 4 on multiple-of-5 seeds (exactly the fork idiom) and sync-every-event so the drop schedule actually shapes the durable prefix. A 500-seed sweep held every harness assertion with dedup now varying by schedule. The post-recovery oracle is extracted into verify_reimport_isomorphism (complexity budget: split, don't bump). Corpus: the committed UnderFault row (seed 0x1B00_DEAD, not a multiple of 5) replays to its stored digest unchanged; one new graduated row (seed 195, drops armed, 3-of-4 durable prefix) pins the armed branch through the graduation engine. Inline pins cover both arming branches (import_fault_xor_stream_derivation_is_load_bearing is bite-proven against the | stream; seed 19 pins the disarmed leg where forcing drops flips it). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TnRLGgP2VtnoggMn4BtKpP
…the disproven import equivalence Registry + lanes changes for the round-2 cure, all mechanically witnessed (no GAUNTLET-WEAKEN-OK stamp needed by design): * netbat-boundary-protocol seam: 8 line-pinned entries for the TLS drain_control_frames guards — the plaintext-side Interrupted guard (rustls 0.23's buffered Reader never returns Interrupted), the socket-side Interrupted guard (EINTR on recv(2) is not deterministically producible; forced-true converges to the same PeerGone), and the drain-budget > boundary (the 63-vs-64 recv(2) delta is absorbed by the next pass and unobservable without syscall instrumentation — probed empirically). Each cites its sidecar witness test. * cfg-phantom excludes: cargo-mutants is cfg-blind, so gated items score phantom misses on surfaces that compile them out. The keyscope tree (payload-encryption-gated at the module declaration) joins store/sim/** as a no-default file-glob exclude; per-symbol regexes cover the gated items in otherwise-live files (step_ancestor_key_aware, CooperativePump, with_fault_injector) and the #[cfg(not(unix))] read_exact_at fallback (NotCompiled, mirroring the reflink band). All are mutated and killed on the surface that compiles them. * import.rs: the < -> == "equivalence" is REMOVED — the append-level replay race is deterministically reconstructible and the new inline test reaches and kills the arm; it was unreached, not equivalent. The < -> <= twin stays with a truthful reason (divergence only at exactly-the-frontier, an open owner decision) and its witness repointed at the reaching test. surface_exclude_res is now surface-keyed; the no-default golden pins the full arg vector; the sim-tree pin test also guards the keyscope globs; the policy report prints both surfaces' regex lists. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TnRLGgP2VtnoggMn4BtKpP
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Actionable comments posted: 11
🧹 Nitpick comments (5)
bpk-lib/crates/core/tests/mutation_kill_integrity_round2.rs (1)
259-317: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick winUse the
KEYSET_FILENAMEconstant instead of a hardcoded literal.Line 282 hardcodes
"keyset.fbatk"to stand in for the crypto-shred keyset artifact, butbatch_fence_crash_tests.rsimportsKEYSET_FILENAMEfromfile_classificationfor the exact same purpose. If the constant's value ever changes, this test would silently classify the seeded file asOtherinstead ofKeyset, weakening the very mutation-kill property it documents (theshould_clear_from_snapshot_destination -> truemutant).♻️ Proposed fix
+use batpak::store::file_classification::KEYSET_FILENAME; ... - std::fs::write( - dest.path().join("keyset.fbatk"), - b"resident crypto-shred keyset", - ) - .expect("seed keyset file"); + std::fs::write( + dest.path().join(KEYSET_FILENAME), + b"resident crypto-shred keyset", + ) + .expect("seed keyset file");Verification script
#!/bin/bash rg -n 'KEYSET_FILENAME|pub.*fn from_path' bpk-lib/crates/core/src/store/file_classification.rs | head -30🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@bpk-lib/crates/core/tests/mutation_kill_integrity_round2.rs` around lines 259 - 317, The test seeds a crypto-shred keyset file using a hardcoded filename literal, which should instead follow the shared classification constant. Update snapshot_preclear_wipes_stale_segments_but_never_foreign_or_keyset_files to use KEYSET_FILENAME (as batch_fence_crash_tests.rs does) when writing the keyset artifact so the test stays aligned with file_classification::from_path and won’t drift if the filename changes.bpk-lib/crates/core/Cargo.toml (1)
41-56: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick winUpdate
ctorand set an explicit constructor priority
ctor = "0.2"is far behind the current 1.x line, and this dependency line does not enablepriority. If__batpak_verify_registry_at_startupneeds a deterministic place in startup order, move to a currentctorrelease and assign an explicit priority instead of relying on default ctor ordering.🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@bpk-lib/crates/core/Cargo.toml` around lines 41 - 56, The startup registry constructor setup is using an outdated ctor dependency and leaves constructor ordering implicit. Update the `ctor` dependency in `Cargo.toml` to a current 1.x release, enable the `priority` support, and assign an explicit priority to `__batpak_verify_registry_at_startup` so its startup ordering is deterministic instead of relying on default ctor behavior.bpk-lib/crates/core/src/store/read_api.rs (2)
473-497: 🚀 Performance & Scalability | 🔵 Trivial | ⚡ Quick winRedundant index lookup: use
entry.disk_posdirectly instead ofread_raw(entry.event_id()).
entriesalready come from an index query and carrydisk_pos;read_rawre-resolves the same event by ID via a secondget_by_idlookup. For a full-storeO(events)scan this doubles the index work needlessly.♻️ Proposed fix
- let stored = self.read_raw(entry.event_id())?; + let stored = self.reader.read_entry_raw(&entry.disk_pos)?;🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@bpk-lib/crates/core/src/store/read_api.rs` around lines 473 - 497, `verify_chain` is doing a redundant lookup by calling `read_raw(entry.event_id())` for each `IndexEntry` even though the query already returned entries with `disk_pos`. Update the loop in `verify_chain` to read the stored event payload directly from the entry’s disk position instead of re-resolving by ID, and keep the hash comparison and report updates unchanged.
253-278: 🚀 Performance & Scalability | 🔵 Trivial | ⚡ Quick winConsider
RwLockinstead ofMutexfor the keyset.Every key-aware read (
get,get_shreddable, projection replay, delivery, compaction) funnels through this single decrypt primitive, and each call serializes on the sameMutexfor the full AEAD-open duration even though decryption never mutates the keyset. Only shred/insert operations need exclusive access.♻️ Illustrative direction (exact API depends on the keyset type not shown here)
- let guard = key_store.lock(); - let Some(key) = guard.get(&scope) else { + let guard = key_store.read(); + let Some(key) = guard.get(&scope) else { return Ok(PayloadPlaintext::Shredded); };🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@bpk-lib/crates/core/src/store/read_api.rs` around lines 253 - 278, The keyset access in open_encrypted_payload_bytes is using an exclusive lock for a read-only decrypt path, which unnecessarily serializes all key-aware reads. Update the key store locking in the keyset type and all callers that use key_store.lock() so decryption paths like open_encrypted_payload_bytes take a shared/read lock, while only shred/insert paths keep exclusive write access. Ensure the updated lock type still works with the existing get/get_shreddable/projection replay/delivery/compaction flow without changing the decryption behavior.bpk-lib/crates/core/src/store/write/writer/encrypt.rs (1)
90-115: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick winComment claims
get_or_createmarks the keyset dirty on mint — it doesn't.The graph context for
KeyStore::get_or_createshows theEntry::Vacantbranch only inserts the freshly generated key; it never touchesself.dirty. Onlydestroysetsdirty = true. The code here is correct today only because it explicitly callsguard.mark_dirty()whenmintedis true — but the comment ("get_or_createalready flags the store dirty on a mint; this keeps the intent explicit ... and is idempotent") asserts the opposite is also true, which isn't backed byget_or_create's actual implementation.This is the exact "durability fence" invariant this module calls "the crux" — if a future refactor trusts this comment and drops the explicit
mark_dirty()call as "redundant", a freshly minted key would never get flushed before its ciphertext, which is precisely the silent-data-loss scenario theKeyStore::dirtyfield's own docs warn about.Recommend either correcting the comment to state that
get_or_createdoes NOT mark dirty (so the explicit call here is load-bearing, not just "explicit intent"), or — more robust — moving the dirty-marking intoKeyStore::get_or_createitself so this invariant can't be silently dropped by future callers.✏️ Minimal fix: correct the comment
- // A fresh mint puts the in-memory keyset ahead of disk — flag it so the - // fence flushes. `get_or_create` already flags the store dirty on a mint; - // this keeps the intent explicit at the seal site and is idempotent. + // A fresh mint puts the in-memory keyset ahead of disk — flag it so the + // fence flushes. `get_or_create` does NOT mark the keyset dirty itself; + // this explicit call is the only thing that does so on a mint, so it is + // load-bearing, not merely "explicit intent". if minted { guard.mark_dirty(); }🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@bpk-lib/crates/core/src/store/write/writer/encrypt.rs` around lines 90 - 115, The durability comment around the seal path is incorrect: KeyStore::get_or_create does not mark the store dirty on mint, so the explicit guard.mark_dirty() in the encrypt flow is load-bearing. Update the comment near the ciphertext sealing logic to state that get_or_create only inserts the new key and the dirty flag must be set explicitly when minted is true, or alternatively move the dirty-marking into KeyStore::get_or_create so the invariant is enforced at the source.
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@bpk-lib/crates/core/src/event/payload.rs`:
- Around line 211-235: The startup check in __batpak_verify_registry_at_startup
currently relies on #[ctor::ctor], but constructor order is not guaranteed
relative to inventory::submit! registrations, so it can validate too early and
miss collisions. Move verify_registry() to a deterministic post-registration
entry point that runs after all EventPayload registrations are available, or
introduce an explicit ordering guarantee before calling it; keep the existing
abort-and-stderr behavior in place once the check runs.
In `@bpk-lib/crates/core/src/store/config.rs`:
- Around line 84-88: The payload-encryption docs in the config comments are
stale: they still say the setting “does not yet wire it into the append/read
paths,” which no longer matches the implemented crypto-shred/encrypt-at-rest
behavior. Update the documentation attached to the relevant config fields in
config.rs, including the builder-facing comments around the payload encryption
setting and any duplicate block around the same symbols, so they describe the
current append/read handling accurately and no longer mention Stage A-only
storage.
- Around line 281-296: The validation in config::validated() still allows
SigningPolicy::Required together with with_signing_downgrade_allowed(true),
which can later fall back to an unsigned receipt in the append/signing path.
Update the validation logic around SigningPolicy and signing_downgrade_allowed
to reject this combination, or have
with_signing_policy/with_signing_downgrade_allowed force downgrade back to false
whenever Required is selected. Make sure the invariant is enforced before the
store is opened so the append-time fallback cannot occur.
In `@bpk-lib/crates/core/src/store/hidden_ranges.rs`:
- Line 88: The empty-ranges branch in hidden_ranges should use the StoreFs
abstraction instead of calling the platform sync helper directly. Update the
code in hidden_ranges to route the parent-directory sync through the existing
fs.sync_parent_dir(&final_path)? method, keeping the behavior the same but
matching the rest of the StoreFs-based path handling.
In `@bpk-lib/crates/core/src/store/lifecycle_compact.rs`:
- Around line 184-188: In relocate_merged_source_if_present, the rollback path
currently removes merged_path even when the relocation has not yet moved
compact_source_path into place, which can delete the original sealed segment;
update the cleanup logic so the old segment is only deleted after a successful
rename/move, and preserve it on failures from remove_file_if_present or
fs.rename. Apply the same rollback safeguard in the other affected cleanup block
referenced by the same merged_path/compact_source_path flow.
- Around line 304-310: The tombstone compaction path is rewriting the encrypted
header kind to TOMBSTONE while still preserving the original ciphertext and
metadata, which breaks AAD validation during decrypt. Update the compaction
logic in lifecycle_compact’s tombstone handling to keep the original event kind
available for decryption, or otherwise avoid changing the kind on encrypted
entries before calling open_encrypted_payload_bytes. Also ensure read_api’s
payload_aad uses the preserved original kind for tombstoned encrypted payloads
so decrypting compacted tombstones still succeeds.
In `@bpk-lib/crates/core/src/store/read_api.rs`:
- Around line 473-497: The verify_chain method is vulnerable to compaction races
because it collects entries with query(&Region::all()) and then rereads each
event with read_raw separately; if retention removes an event between those
steps, the whole verification fails with StoreError::NotFound. Update
verify_chain in read_api.rs to either hold the lifecycle gate for the entire
verification pass or handle missing read_raw results as a non-fatal gap by
recording the affected event in ChainVerificationReport instead of returning an
error.
In `@bpk-lib/crates/core/src/store/sim/recovery.rs`:
- Around line 472-483: The fault-teardown check around the `close_result`
assertion uses `debug_assert!`, which can disappear in release builds and let
the `CrashOp::PersistTemp` scenario go unverified. Update the assertion in this
recovery test to use `assert!` so the precondition is always enforced, keeping
the torn-publish validation active regardless of build mode. Reference the
`sim_fs.arm_fault_on(...)` setup and the `store.close()` call when making the
change.
In `@bpk-lib/crates/netbat/src/lib.rs`:
- Around line 111-116: Update the trust-model comment near
serve_tcp_subscription_listener_secured to qualify the “never blocks the accept
loop” claim for SubscriptionDispatch::Sequential. Make it clear that the
non-blocking guarantee only applies when the handshake runs on a per-connection
worker after a permit is acquired, and that sequential subscriptions are served
inline so a slow TLS handshake can still block the accept loop. Preserve the
existing stats/failure wording and reference both
serve_tcp_subscription_listener_secured and SubscriptionDispatch::Sequential in
the revised text.
In `@bpk-lib/crates/netbat/src/transport/stream_tcp_tls.rs`:
- Around line 210-214: The doc comments on the control-flow enum are reversed:
PeerGone and Stopped describe the opposite conditions. Update the variant
documentation in stream_tcp_tls.rs so PeerGone explains peer close/read failure
and Stopped explains terminal control frames being forwarded, keeping the
meanings aligned with the actual uses of the enum and related control flow.
In `@bpk-lib/crates/netbat/src/transport/stream_tcp.rs`:
- Around line 288-293: Drain pending worker stats before joining the worker
threads in the shutdown path of stream_tcp::accept_loop (the loop that iterates
over workers and calls worker.join) so the bounded stats_tx send in the worker
cannot deadlock shutdown. Move or add the drain_subscription_stats(&mut stats,
&stats_rx) call to run before the join loop, and keep the existing worker
join/error handling intact after stats have been drained.
---
Nitpick comments:
In `@bpk-lib/crates/core/Cargo.toml`:
- Around line 41-56: The startup registry constructor setup is using an outdated
ctor dependency and leaves constructor ordering implicit. Update the `ctor`
dependency in `Cargo.toml` to a current 1.x release, enable the `priority`
support, and assign an explicit priority to
`__batpak_verify_registry_at_startup` so its startup ordering is deterministic
instead of relying on default ctor behavior.
In `@bpk-lib/crates/core/src/store/read_api.rs`:
- Around line 473-497: `verify_chain` is doing a redundant lookup by calling
`read_raw(entry.event_id())` for each `IndexEntry` even though the query already
returned entries with `disk_pos`. Update the loop in `verify_chain` to read the
stored event payload directly from the entry’s disk position instead of
re-resolving by ID, and keep the hash comparison and report updates unchanged.
- Around line 253-278: The keyset access in open_encrypted_payload_bytes is
using an exclusive lock for a read-only decrypt path, which unnecessarily
serializes all key-aware reads. Update the key store locking in the keyset type
and all callers that use key_store.lock() so decryption paths like
open_encrypted_payload_bytes take a shared/read lock, while only shred/insert
paths keep exclusive write access. Ensure the updated lock type still works with
the existing get/get_shreddable/projection replay/delivery/compaction flow
without changing the decryption behavior.
In `@bpk-lib/crates/core/src/store/write/writer/encrypt.rs`:
- Around line 90-115: The durability comment around the seal path is incorrect:
KeyStore::get_or_create does not mark the store dirty on mint, so the explicit
guard.mark_dirty() in the encrypt flow is load-bearing. Update the comment near
the ciphertext sealing logic to state that get_or_create only inserts the new
key and the dirty flag must be set explicitly when minted is true, or
alternatively move the dirty-marking into KeyStore::get_or_create so the
invariant is enforced at the source.
In `@bpk-lib/crates/core/tests/mutation_kill_integrity_round2.rs`:
- Around line 259-317: The test seeds a crypto-shred keyset file using a
hardcoded filename literal, which should instead follow the shared
classification constant. Update
snapshot_preclear_wipes_stale_segments_but_never_foreign_or_keyset_files to use
KEYSET_FILENAME (as batch_fence_crash_tests.rs does) when writing the keyset
artifact so the test stays aligned with file_classification::from_path and won’t
drift if the filename changes.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: defaults
Review profile: CHILL
Plan: Pro Plus
Run ID: 51b62766-af32-4f07-8fd6-d8c4d7228dcd
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bpk-lib/Cargo.lockis excluded by!**/*.lockbpk-lib/crates/netbat/tests/fixtures/tls_test_ca_cert.pemis excluded by!**/*.pembpk-lib/crates/netbat/tests/fixtures/tls_test_cert.pemis excluded by!**/*.pembpk-lib/crates/netbat/tests/fixtures/tls_test_key.pemis excluded by!**/*.pem
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03_INVARIANTS.mdCHANGELOG.mdREADME.mdbpk-lib/.config/nextest.tomlbpk-lib/crates/batpak-examples/Cargo.tomlbpk-lib/crates/batpak-examples/README.mdbpk-lib/crates/batpak-examples/src/bin/append_with_gate.rsbpk-lib/crates/batpak-examples/src/bin/batch_append.rsbpk-lib/crates/batpak-examples/src/bin/cursor_worker.rsbpk-lib/crates/batpak-examples/src/bin/dungeon_typestate.rsbpk-lib/crates/batpak-examples/src/bin/event_sourced_counter.rsbpk-lib/crates/batpak-examples/src/bin/idempotent_pass.rsbpk-lib/crates/batpak-examples/src/bin/outbox.rsbpk-lib/crates/batpak-examples/src/bin/quickstart.rsbpk-lib/crates/batpak-examples/src/bin/raw_projection_counter.rsbpk-lib/crates/batpak-examples/src/bin/raw_projection_counter_derived.rsbpk-lib/crates/batpak-examples/src/bin/read_only.rsbpk-lib/crates/batpak-examples/src/bin/submit_pipeline.rsbpk-lib/crates/batpak-examples/src/bin/subscription_fanout.rsbpk-lib/crates/batpak-examples/src/bin/typestate_transitions.rsbpk-lib/crates/bench-support/Cargo.tomlbpk-lib/crates/bvisor/Cargo.tomlbpk-lib/crates/core/Cargo.tomlbpk-lib/crates/core/README.mdbpk-lib/crates/core/fixtures/kind-collision-composer/src/lib.rsbpk-lib/crates/core/fixtures/registry-startup-collision/Cargo.tomlbpk-lib/crates/core/fixtures/registry-startup-collision/src/clean_verify.rsbpk-lib/crates/core/fixtures/registry-startup-collision/src/collide_verify.rsbpk-lib/crates/core/fixtures/registry-startup-ctor/Cargo.tomlbpk-lib/crates/core/fixtures/registry-startup-ctor/src/collide_ctor.rsbpk-lib/crates/core/fixtures/store-open-collision/Cargo.tomlbpk-lib/crates/core/fixtures/store-open-collision/src/open_default_failfast.rsbpk-lib/crates/core/fixtures/store-open-collision/src/open_warn_opens.rsbpk-lib/crates/core/src/event/header.rsbpk-lib/crates/core/src/event/mod.rsbpk-lib/crates/core/src/event/payload.rsbpk-lib/crates/core/src/event/upcast.rsbpk-lib/crates/core/src/lib.rsbpk-lib/crates/core/src/prelude.rsbpk-lib/crates/core/src/store/ancestry/by_hash.rsbpk-lib/crates/core/src/store/ancestry/mod.rsbpk-lib/crates/core/src/store/cold_start/checkpoint/format.rsbpk-lib/crates/core/src/store/cold_start/checkpoint/tests.rsbpk-lib/crates/core/src/store/cold_start/checkpoint/write.rsbpk-lib/crates/core/src/store/cold_start/mmap.rsbpk-lib/crates/core/src/store/cold_start/mmap/format.rsbpk-lib/crates/core/src/store/cold_start/mod.rsbpk-lib/crates/core/src/store/cold_start/rebuild/tests.rsbpk-lib/crates/core/src/store/cold_start/rebuild/topology.rsbpk-lib/crates/core/src/store/config.rsbpk-lib/crates/core/src/store/config/tests.rsbpk-lib/crates/core/src/store/config/types.rsbpk-lib/crates/core/src/store/config/validation.rsbpk-lib/crates/core/src/store/crypto_shred_api.rsbpk-lib/crates/core/src/store/delivery/cursor.rsbpk-lib/crates/core/src/store/delivery/cursor/checkpoint.rsbpk-lib/crates/core/src/store/delivery/cursor/worker.rsbpk-lib/crates/core/src/store/error.rsbpk-lib/crates/core/src/store/error/display.rsbpk-lib/crates/core/src/store/file_classification.rsbpk-lib/crates/core/src/store/hidden_ranges.rsbpk-lib/crates/core/src/store/import.rsbpk-lib/crates/core/src/store/index/idemp.rsbpk-lib/crates/core/src/store/index/tests.rsbpk-lib/crates/core/src/store/keyscope.rsbpk-lib/crates/core/src/store/keyscope/persist.rsbpk-lib/crates/core/src/store/keyscope/persist/crash_tests.rsbpk-lib/crates/core/src/store/keyscope/persist/tests.rsbpk-lib/crates/core/src/store/keyscope/tests.rsbpk-lib/crates/core/src/store/lifecycle.rsbpk-lib/crates/core/src/store/lifecycle_close.rsbpk-lib/crates/core/src/store/lifecycle_compact.rsbpk-lib/crates/core/src/store/lifecycle_fork.rsbpk-lib/crates/core/src/store/lifecycle_snapshot.rsbpk-lib/crates/core/src/store/mod.rsbpk-lib/crates/core/src/store/open.rsbpk-lib/crates/core/src/store/open/tests.rsbpk-lib/crates/core/src/store/platform/fs.rsbpk-lib/crates/core/src/store/platform/fs_tests.rsbpk-lib/crates/core/src/store/projection/flow/encrypted_replay.rsbpk-lib/crates/core/src/store/projection/flow/mod.rsbpk-lib/crates/core/src/store/projection/flow/outcome.rsbpk-lib/crates/core/src/store/projection/flow/replay_input.rsbpk-lib/crates/core/src/store/reactor_delivery.rsbpk-lib/crates/core/src/store/reactor_typed.rsbpk-lib/crates/core/src/store/read_api.rsbpk-lib/crates/core/src/store/receipt_verification.rsbpk-lib/crates/core/src/store/runtime_contracts.rsbpk-lib/crates/core/src/store/segment/boundary_tests.rsbpk-lib/crates/core/src/store/segment/recovery_manifest.rsbpk-lib/crates/core/src/store/segment/scan/full_scan.rsbpk-lib/crates/core/src/store/segment/scan/mod.rsbpk-lib/crates/core/src/store/segment/scan/point_read.rsbpk-lib/crates/core/src/store/segment/scan/recovery/tests.rsbpk-lib/crates/core/src/store/segment/scan/tests.rsbpk-lib/crates/core/src/store/signing.rsbpk-lib/crates/core/src/store/sim/atomic_fault.rsbpk-lib/crates/core/src/store/sim/fault_model.rsbpk-lib/crates/core/src/store/sim/fs.rsbpk-lib/crates/core/src/store/sim/import_recovery.rsbpk-lib/crates/core/src/store/sim/mod.rsbpk-lib/crates/core/src/store/sim/read_fault.rsbpk-lib/crates/core/src/store/sim/recovery.rsbpk-lib/crates/core/src/store/write/writer.rsbpk-lib/crates/core/src/store/write/writer/append.rsbpk-lib/crates/core/src/store/write/writer/batch.rsbpk-lib/crates/core/src/store/write/writer/batch_fence_crash_tests.rsbpk-lib/crates/core/src/store/write/writer/encrypt.rsbpk-lib/crates/core/src/store/write/writer/fence_runtime.rsbpk-lib/crates/core/src/store/write/writer/runtime.rsbpk-lib/crates/core/src/store/write/writer/runtime/mutation_tests.rsbpk-lib/crates/core/src/store/write/writer/runtime/tests.rsbpk-lib/crates/core/tests/chain_verification.rsbpk-lib/crates/core/tests/crypto_shred_ancestry.rsbpk-lib/crates/core/tests/crypto_shred_delivery.rsbpk-lib/crates/core/tests/crypto_shred_payload.rsbpk-lib/crates/core/tests/crypto_shred_projection_compaction.rsbpk-lib/crates/core/tests/event_payload_collision_default_fail_fast.rsbpk-lib/crates/core/tests/event_payload_registry_startup.rsbpk-lib/crates/core/tests/keyscope_foundation.rsbpk-lib/crates/core/tests/keyscope_persist.rsbpk-lib/crates/core/tests/mutation_kill_integrity_round2.rsbpk-lib/crates/core/tests/mutation_kill_keyset_round2.rsbpk-lib/crates/core/tests/mutation_kill_recovery_round2.rsbpk-lib/crates/core/tests/mutation_kill_wpc_round3.rsbpk-lib/crates/core/tests/mutation_kill_wpc_round3_cooperative.rsbpk-lib/crates/core/tests/mutation_kill_wpc_round3_encrypted.rsbpk-lib/crates/core/tests/signing_policy.rsbpk-lib/crates/core/tests/store_ancestors_retention_coherence.rsbpk-lib/crates/core/tests/store_compaction_survivor_payload.rsbpk-lib/crates/core/tests/typestate_safety.rsbpk-lib/crates/core/tests/upcast_chain_complete_opens.rsbpk-lib/crates/core/tests/upcast_chain_incomplete_default_fail_fast.rsbpk-lib/crates/hostbat/Cargo.tomlbpk-lib/crates/hostbat/src/builder.rsbpk-lib/crates/hostbat/src/host_control_backend.rsbpk-lib/crates/hostbat/src/lib.rsbpk-lib/crates/hostbat/src/validating_effect_backend.rsbpk-lib/crates/hostbat/tests/host_control_backend.rsbpk-lib/crates/macros-support/Cargo.tomlbpk-lib/crates/macros-support/src/lib.rsbpk-lib/crates/macros/Cargo.tomlbpk-lib/crates/macros/src/event_payload.rsbpk-lib/crates/macros/src/operation.rsbpk-lib/crates/netbat/Cargo.tomlbpk-lib/crates/netbat/README.mdbpk-lib/crates/netbat/benches/boundary.rsbpk-lib/crates/netbat/src/lib.rsbpk-lib/crates/netbat/src/transport/limiter.rsbpk-lib/crates/netbat/src/transport/mod.rsbpk-lib/crates/netbat/src/transport/stream_tcp.rsbpk-lib/crates/netbat/src/transport/stream_tcp_tests.rsbpk-lib/crates/netbat/src/transport/stream_tcp_tls.rsbpk-lib/crates/netbat/src/transport/stream_tcp_tls_tests.rsbpk-lib/crates/netbat/src/transport/tcp.rsbpk-lib/crates/netbat/src/transport/tls.rsbpk-lib/crates/netbat/tests/boundary.rsbpk-lib/crates/netbat/tests/connection_limit.rsbpk-lib/crates/netbat/tests/err_code_table.rsbpk-lib/crates/netbat/tests/mutation_kill_netbat-transport-round2.rsbpk-lib/crates/netbat/tests/mutation_kill_netbat-transport.rsbpk-lib/crates/netbat/tests/subscription_concurrency.rsbpk-lib/crates/netbat/tests/tcp_transport.rsbpk-lib/crates/netbat/tests/tls_subscription.rsbpk-lib/crates/netbat/tests/tls_transport.rsbpk-lib/crates/syncbat/Cargo.tomlbpk-lib/crates/syncbat/README.mdbpk-lib/crates/syncbat/benches/dispatch.rsbpk-lib/crates/syncbat/src/builder.rsbpk-lib/crates/syncbat/src/core.rsbpk-lib/crates/syncbat/src/effect.rsbpk-lib/crates/syncbat/src/effect_backend.rsbpk-lib/crates/syncbat/src/error.rsbpk-lib/crates/syncbat/src/lib.rsbpk-lib/crates/syncbat/src/operation_name.rsbpk-lib/crates/syncbat/src/receipt.rsbpk-lib/crates/syncbat/src/store_effect.rsbpk-lib/crates/syncbat/src/subscription_runtime/entity_stream.rsbpk-lib/crates/syncbat/src/subscription_runtime/envelope.rsbpk-lib/crates/syncbat/src/subscription_runtime/event_stream.rsbpk-lib/crates/syncbat/src/subscription_runtime/operation_status_stream_tests.rsbpk-lib/crates/syncbat/src/subscription_runtime/receipt_stream.rsbpk-lib/crates/syncbat/tests/capability_authz.rsbpk-lib/crates/syncbat/tests/crypto_shred_delivery.rsbpk-lib/crates/syncbat/tests/effect_enforcement.rsbpk-lib/crates/syncbat/tests/emit_receipt_backed.rsbpk-lib/crates/syncbat/tests/mutation_kill_syncbat-core-surfaces.rsbpk-lib/crates/syncbat/tests/mutation_kill_syncbat-subscription-runtime.rsbpk-lib/crates/syncbat/tests/operation_macro.rsbpk-lib/crates/syncbat/tests/property.rsbpk-lib/crates/syncbat/tests/runtime.rsbpk-lib/crates/syncbat/tests/store_effect_backed.rsbpk-lib/crates/testkit/Cargo.tomlbpk-lib/crates/testkit/src/prelude.rsbpk-lib/crates/testkit/src/store_error_contract.rsbpk-lib/deny.tomlbpk-lib/tools/integrity/src/mutation_exclusion_registry.rsbpk-lib/tools/integrity/src/platform_qualification_matrix.rsbpk-lib/tools/xtask/Cargo.tomlbpk-lib/tools/xtask/src/commands/mutants/lanes.rsbpk-lib/tools/xtask/src/commands/mutants/mod.rsbpk-lib/tools/xtask/src/commands/mutants/policy.rsbpk-lib/traceability/artifacts.yamlbpk-lib/traceability/capability_sna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💤 Files with no reviewable changes (1)
- bpk-lib/crates/batpak-examples/src/bin/dungeon_typestate.rs
Comment on lines
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| /// Process-wide startup constructor installed by the non-default | ||
| /// `startup-registry-check` feature. | ||
| /// | ||
| /// Runs before `main`, so a release binary that registers colliding | ||
| /// `EventPayload` kinds and never opens a `Store` still fails fast: it writes a | ||
| /// diagnostic to `stderr` and aborts the process. One central constructor covers | ||
| /// the whole binary (the derive emits no per-type startup hook), so this is | ||
| /// idempotent by construction. The diagnostic is written with `write_all` on | ||
| /// `std::io::stderr()` rather than `eprintln!` to honor the crate's | ||
| /// no-`print_stderr` discipline, and the write result is deliberately ignored: | ||
| /// if `stderr` itself is unwritable the process must still abort so the collision | ||
| /// can never be silently accepted at startup. | ||
| #[cfg(feature = "startup-registry-check")] | ||
| #[ctor::ctor] | ||
| fn __batpak_verify_registry_at_startup() { | ||
| use std::io::Write; | ||
|
|
||
| if let Err(error) = verify_registry() { | ||
| let message = format!("batpak startup-registry-check: aborting before main: {error}\n"); | ||
| let mut stderr = std::io::stderr(); | ||
| let _ = stderr.write_all(message.as_bytes()); | ||
| let _ = stderr.flush(); | ||
| std::process::abort(); | ||
| } | ||
| } |
There was a problem hiding this comment.
🩺 Stability & Availability | 🟠 Major | 🏗️ Heavy lift
🧩 Analysis chain
🌐 Web query:
Does the inventory crate guarantee its submit! registration constructors run before any user-defined ctor::ctor constructor in the same binary?
💡 Result:
No, the inventory crate does not guarantee that its submit! registration constructors run before any user-defined constructors (such as those created by the ctor crate) in the same binary [1][2][3]. The inventory crate operates by using runtime initialization functions similar to attribute((constructor)) in C, which execute as part of the "life-before-main" phase for statically linked elements [1][2][3]. Because these registration shims rely on the platform's standard mechanism for executing static constructors, the execution order between inventory's registrations and other user-defined constructors is generally determined by the linker and the operating system's loader [1][3]. There is no mechanism in the inventory crate to enforce or guarantee a specific ordering relative to other independent constructor functions [1][4][5]. Furthermore, the inventory crate explicitly documentation states that there is no guaranteed order in which plugins of the same type are visited by the iterator [1][4][5]. Users should not rely on a deterministic execution or registration order when using this crate [1][5].
Citations:
- 1: https://github.com/dtolnay/inventory/
- 2: https://docs.rs/crate/inventory/latest
- 3: https://crates.io/crates/inventory
- 4: https://docs.rs/inventory/latest/inventory/
- 5: https://docs.rs/inventory/latest/inventory/index.html
Don't use #[ctor::ctor] for this check inventory::submit! constructors have no ordering guarantee relative to other constructors, so this can run before some registrations exist and miss a real collision. Move the validation to a deterministic post-registration point or add an explicit ordering guarantee.
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/core/src/event/payload.rs` around lines 211 - 235, The startup
check in __batpak_verify_registry_at_startup currently relies on #[ctor::ctor],
but constructor order is not guaranteed relative to inventory::submit!
registrations, so it can validate too early and miss collisions. Move
verify_registry() to a deterministic post-registration entry point that runs
after all EventPayload registrations are available, or introduce an explicit
ordering guarantee before calling it; keep the existing abort-and-stderr
behavior in place once the check runs.
Comment on lines
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| /// Opt-in crypto-shred payload encryption. `None` (default) disables it and | ||
| /// preserves today's plaintext-payload behavior; `Some(granularity)` selects | ||
| /// the [`KeyScopeGranularity`] keys are partitioned by. Holds only the | ||
| /// granularity — never any key material. Stage A stores this setting but does | ||
| /// not yet wire it into the append/read paths. |
There was a problem hiding this comment.
📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win
Update the stale payload-encryption docs.
These comments still say the config “does not yet wire it into the append/read paths,” but this PR’s stated surface includes implemented encrypt-at-rest/crypto-shred handling. This will mislead users reading the public builder docs.
Also applies to: 315-320
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/core/src/store/config.rs` around lines 84 - 88, The
payload-encryption docs in the config comments are stale: they still say the
setting “does not yet wire it into the append/read paths,” which no longer
matches the implemented crypto-shred/encrypt-at-rest behavior. Update the
documentation attached to the relevant config fields in config.rs, including the
builder-facing comments around the payload encryption setting and any duplicate
block around the same symbols, so they describe the current append/read handling
accurately and no longer mention Stage A-only storage.
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| /// Set the receipt signing policy. | ||
| /// | ||
| /// `Optional` (default) permits a keyless store; `Required` refuses to open | ||
| /// without a signing key, so unsigned receipts can never be accepted. | ||
| pub fn with_signing_policy(mut self, signing_policy: SigningPolicy) -> Self { | ||
| self.signing_policy = signing_policy; | ||
| self | ||
| } | ||
|
|
||
| /// Permit best-effort downgrade to an unsigned receipt when a configured | ||
| /// signer cannot build its signature cover. Default `false` (the append | ||
| /// fails closed rather than silently emitting an unsigned receipt). | ||
| pub fn with_signing_downgrade_allowed(mut self, allow: bool) -> Self { | ||
| self.signing_downgrade_allowed = allow; | ||
| self | ||
| } |
There was a problem hiding this comment.
🔒 Security & Privacy | 🟠 Major | ⚡ Quick win
🧩 Analysis chain
🏁 Script executed:
#!/bin/bash
# Description: Inspect validation and signing paths for Required + downgrade handling.
rg -n -C4 'signing_downgrade_allowed|SigningPolicy::Required|with_signing_policy|with_signing_downgrade_allowed' bpk-lib/crates/core/src bpk-lib/crates/core/testsRepository: freebatteryfactory/batpak
Length of output: 17218
🏁 Script executed:
#!/bin/bash
set -euo pipefail
# Inspect the validation and append-time signing logic for policy/downgrade interaction.
sed -n '1,220p' bpk-lib/crates/core/src/store/config/validation.rs
printf '\n--- signing.rs ---\n'
sed -n '1,220p' bpk-lib/crates/core/src/store/signing.rs
printf '\n--- signing registry/types ---\n'
sed -n '1,220p' bpk-lib/crates/core/src/store/config/types.rs
printf '\n--- related tests ---\n'
sed -n '1,220p' bpk-lib/crates/core/src/store/config/tests.rs
sed -n '1,220p' bpk-lib/crates/core/tests/signing_policy.rsRepository: freebatteryfactory/batpak
Length of output: 33446
🏁 Script executed:
#!/bin/bash
set -euo pipefail
# Find every place the signing policy and downgrade flag are combined or enforced.
rg -n -C3 'signing_downgrade_allowed|SigningPolicy::Required|ReceiptSigningRegistry::from_keys|sign_append_receipt|validated\(' bpk-lib/crates/core/srcRepository: freebatteryfactory/batpak
Length of output: 29513
Reject Required when signing downgrade is enabled. validated() still accepts SigningPolicy::Required plus with_signing_downgrade_allowed(true), and append-time signing will fall back to an unsigned receipt on cover-build failure. Make that combination invalid, or force downgrade off when Required is selected.
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/core/src/store/config.rs` around lines 281 - 296, The
validation in config::validated() still allows SigningPolicy::Required together
with with_signing_downgrade_allowed(true), which can later fall back to an
unsigned receipt in the append/signing path. Update the validation logic around
SigningPolicy and signing_downgrade_allowed to reject this combination, or have
with_signing_policy/with_signing_downgrade_allowed force downgrade back to false
whenever Required is selected. Make sure the invariant is enforced before the
store is opened so the append-time fallback cannot occur.
| .remove_file_if_present(&final_path) | ||
| .map_err(StoreError::Io)? | ||
| { | ||
| crate::store::platform::sync::sync_parent_dir(&final_path)?; |
There was a problem hiding this comment.
📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win
🧩 Analysis chain
🏁 Script executed:
#!/bin/bash
# Inspect the StoreFs trait surface to see if sync/read helpers are expected to be included.
fd -e rs 'fs.rs' bpk-lib/crates/core/src/store/platform | xargs cat -nRepository: freebatteryfactory/batpak
Length of output: 27713
🏁 Script executed:
#!/bin/bash
set -euo pipefail
# Inspect the relevant function and its call sites.
file='bpk-lib/crates/core/src/store/hidden_ranges.rs'
wc -l "$file"
sed -n '1,220p' "$file"
# Check whether load_cancelled_ranges already has an fs-routed variant or nearby abstraction.
rg -n "load_cancelled_ranges|write_cancelled_ranges|sync_parent_dir|sync_file_all_io|admit_current_parent_dir_sync|platform::fs::read|read_exact_at" bpk-lib/crates/core/src/store -SRepository: freebatteryfactory/batpak
Length of output: 20005
Route the empty-ranges parent-dir sync through StoreFs.
StoreFs already exposes sync_parent_dir, so this branch should call fs.sync_parent_dir(&final_path)? instead of crate::store::platform::sync::sync_parent_dir(&final_path)?.
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/core/src/store/hidden_ranges.rs` at line 88, The empty-ranges
branch in hidden_ranges should use the StoreFs abstraction instead of calling
the platform sync helper directly. Update the code in hidden_ranges to route the
parent-directory sync through the existing fs.sync_parent_dir(&final_path)?
method, keeping the behavior the same but matching the rest of the StoreFs-based
path handling.
Comment on lines
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| fs.remove_file_if_present(merged_path) | ||
| .map_err(StoreError::Io)?; | ||
| if let Some(temp_source_path) = compact_source_path { | ||
| platform_fs::rename(temp_source_path, merged_path).map_err(StoreError::Io)?; | ||
| fs.rename(temp_source_path, merged_path) | ||
| .map_err(StoreError::Io)?; |
There was a problem hiding this comment.
🗄️ Data Integrity & Integration | 🔴 Critical | ⚡ Quick win
Avoid deleting the original segment when relocation fails before the move.
If remove_file_if_present or rename fails in relocate_merged_source_if_present before compact_source_path is set, the original sealed segment still lives at merged_path; rollback then removes it unconditionally on Line 184, losing data.
🐛 Proposed rollback fix
fn rollback_compaction_disk_state(
data_dir: &std::path::Path,
merged_path: &std::path::Path,
compact_source_path: Option<&std::path::Path>,
fs: &dyn StoreFs,
) -> Result<(), StoreError> {
- fs.remove_file_if_present(merged_path)
- .map_err(StoreError::Io)?;
if let Some(temp_source_path) = compact_source_path {
+ fs.remove_file_if_present(merged_path)
+ .map_err(StoreError::Io)?;
fs.rename(temp_source_path, merged_path)
.map_err(StoreError::Io)?;
}
crate::store::cold_start::rebuild::clear_pending_compaction(data_dir, fs)?;
Ok(())
}Also applies to: 369-372
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/core/src/store/lifecycle_compact.rs` around lines 184 - 188,
In relocate_merged_source_if_present, the rollback path currently removes
merged_path even when the relocation has not yet moved compact_source_path into
place, which can delete the original sealed segment; update the cleanup logic so
the old segment is only deleted after a successful rename/move, and preserve it
on failures from remove_file_if_present or fs.rename. Apply the same rollback
safeguard in the other affected cleanup block referenced by the same
merged_path/compact_source_path flow.
Comment on lines
+473
to
+497
| pub fn verify_chain(&self) -> Result<ChainVerificationReport, StoreError> { | ||
| let mut entries = self.query(&Region::all()); | ||
| entries.sort_by_key(IndexEntry::global_sequence); | ||
| let mut report = ChainVerificationReport::default(); | ||
| let mut verified_hashes: std::collections::BTreeSet<[u8; 32]> = | ||
| std::collections::BTreeSet::new(); | ||
| for entry in &entries { | ||
| report.events_checked += 1; | ||
| let stored = self.read_raw(entry.event_id())?; | ||
| let recomputed = crate::event::hash::compute_hash(&stored.event.payload); | ||
| if recomputed == entry.hash_chain().event_hash { | ||
| verified_hashes.insert(entry.hash_chain().event_hash); | ||
| } else { | ||
| report.content_hash_mismatches.push(entry.event_id()); | ||
| } | ||
| } | ||
| for entry in &entries { | ||
| let prev = entry.hash_chain().prev_hash; | ||
| if prev != [0u8; 32] && !verified_hashes.contains(&prev) { | ||
| report.dangling_links.push(entry.event_id()); | ||
| } | ||
| } | ||
| Ok(report) | ||
| } | ||
|
|
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🩺 Stability & Availability | 🟡 Minor | ⚡ Quick win
🧩 Analysis chain
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# Check whether Store serializes compaction against verify_chain / other readers.
rg -n -B3 -A15 'pub fn compact' bpk-lib/crates/core/src/store/lifecycle_compact.rs
rg -n 'fn verify_chain' -A5 bpk-lib/crates/core/src/store/read_api.rsRepository: freebatteryfactory/batpak
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set -euo pipefail
# Map the relevant store files and inspect the reader/compactor implementations.
git ls-files bpk-lib/crates/core/src/store
echo '--- lifecycle_compact outline ---'
ast-grep outline bpk-lib/crates/core/src/store/lifecycle_compact.rs --view expanded || true
echo '--- read_api outline ---'
ast-grep outline bpk-lib/crates/core/src/store/read_api.rs --view expanded || true
echo '--- search for read_raw/query/locking ---'
rg -n -A4 -B4 'fn (read_raw|query)|read_raw\(|query\(&Region::all\(\)\)|Mutex|RwLock|lock\(|retention|compact|purge|delete|remove' bpk-lib/crates/core/src/storeRepository: freebatteryfactory/batpak
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echo '--- read_api.rs (around verify_chain and read_raw/query) ---'
sed -n '1,220p' bpk-lib/crates/core/src/store/read_api.rs
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# Inspect the exact reader/compactor code paths and any locking/serialization around them.
wc -l bpk-lib/crates/core/src/store/read_api.rs bpk-lib/crates/core/src/store/lifecycle_compact.rs
echo '--- read_api.rs: relevant functions ---'
rg -n -A40 -B12 'pub fn verify_chain|fn query\(|fn read_raw\(' bpk-lib/crates/core/src/store/read_api.rs
echo '--- lifecycle_compact.rs: relevant functions ---'
rg -n -A50 -B12 'pub fn compact|fn compact|retention|prune|vacuum|gc|delete|remove|lock\(' bpk-lib/crates/core/src/store/lifecycle_compact.rs
echo '--- store-wide read/lock/search ---'
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rg -n -A25 -B10 'pub fn verify_chain|fn query\(|fn read_raw\(|lifecycle_gate\.lock\(\)|pub fn compact|retain|retention' \
bpk-lib/crates/core/src/store/read_api.rs \
bpk-lib/crates/core/src/store/lifecycle_compact.rs \
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sed -n '430,520p' bpk-lib/crates/core/src/store/read_api.rs | cat -n
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rg -n -A12 -B8 'pub fn verify_chain|fn query\(|fn read_raw\(|lifecycle_gate\.lock\(\)|pub fn compact' \
bpk-lib/crates/core/src/store/read_api.rs \
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Guard verify_chain against compaction races. query(&Region::all()) and the per-entry read_raw happen in separate steps, so a concurrent retention/compaction pass can remove a sealed event in between and turn the whole report into StoreError::NotFound. Either hold the lifecycle gate for the full verification pass or treat missing rereads as a non-fatal gap in the report.
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/core/src/store/read_api.rs` around lines 473 - 497, The
verify_chain method is vulnerable to compaction races because it collects
entries with query(&Region::all()) and then rereads each event with read_raw
separately; if retention removes an event between those steps, the whole
verification fails with StoreError::NotFound. Update verify_chain in read_api.rs
to either hold the lifecycle gate for the entire verification pass or handle
missing read_raw results as a non-fatal gap by recording the affected event in
ChainVerificationReport instead of returning an error.
Comment on lines
+472
to
+483
| // Arm the atomic-publish fault, then trigger the cold-start artifact | ||
| // publish via close(). close() drains the writer, flushes the durable | ||
| // idempotency store, then writes the checkpoint/mmap artifact — both now | ||
| // routed through StoreFs::persist_temp_with_parent_sync. The first such | ||
| // publish tears, so close() returns Err with the artifact un-published. | ||
| sim_fs.arm_fault_on(CrashOp::PersistTemp, 1); | ||
| let close_result = store.close(); | ||
| debug_assert!( | ||
| close_result.is_err(), | ||
| "the armed PersistTemp fault must tear a cold-start artifact publish during close" | ||
| ); | ||
| drop(close_result); |
There was a problem hiding this comment.
🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win
Use assert!, not debug_assert!, for the fault-teardown precondition.
debug_assert! is compiled out in release builds. If this suite is ever run with --release (e.g. under mutation testing or perf-oriented CI), the check that the armed PersistTemp fault actually tore close() silently disappears, and the test would validate a normal close — never proving the torn-publish scenario the test's docstring claims to exercise.
🔧 Proposed fix
sim_fs.arm_fault_on(CrashOp::PersistTemp, 1);
let close_result = store.close();
- debug_assert!(
+ assert!(
close_result.is_err(),
"the armed PersistTemp fault must tear a cold-start artifact publish during close"
);
drop(close_result);📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
Suggested change
| // Arm the atomic-publish fault, then trigger the cold-start artifact | |
| // publish via close(). close() drains the writer, flushes the durable | |
| // idempotency store, then writes the checkpoint/mmap artifact — both now | |
| // routed through StoreFs::persist_temp_with_parent_sync. The first such | |
| // publish tears, so close() returns Err with the artifact un-published. | |
| sim_fs.arm_fault_on(CrashOp::PersistTemp, 1); | |
| let close_result = store.close(); | |
| debug_assert!( | |
| close_result.is_err(), | |
| "the armed PersistTemp fault must tear a cold-start artifact publish during close" | |
| ); | |
| drop(close_result); | |
| // Arm the atomic-publish fault, then trigger the cold-start artifact | |
| // publish via close(). close() drains the writer, flushes the durable | |
| // idempotency store, then writes the checkpoint/mmap artifact — both now | |
| // routed through StoreFs::persist_temp_with_parent_sync. The first such | |
| // publish tears, so close() returns Err with the artifact un-published. | |
| sim_fs.arm_fault_on(CrashOp::PersistTemp, 1); | |
| let close_result = store.close(); | |
| assert!( | |
| close_result.is_err(), | |
| "the armed PersistTemp fault must tear a cold-start artifact publish during close" | |
| ); | |
| drop(close_result); |
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/core/src/store/sim/recovery.rs` around lines 472 - 483, The
fault-teardown check around the `close_result` assertion uses `debug_assert!`,
which can disappear in release builds and let the `CrashOp::PersistTemp`
scenario go unverified. Update the assertion in this recovery test to use
`assert!` so the precondition is always enforced, keeping the torn-publish
validation active regardless of build mode. Reference the
`sim_fs.arm_fault_on(...)` setup and the `store.close()` call when making the
change.
Comment on lines
+111
to
+116
| //! [`serve_tcp_subscription_listener_secured`]). The rustls handshake runs on | ||
| //! the per-connection worker *after* the concurrency permit is acquired, so a | ||
| //! slow or hostile handshake occupies at most one worker+permit slot and never | ||
| //! blocks the accept loop; a failed handshake (for example, a cleartext peer) is | ||
| //! counted in [`TcpServeStats::tls_handshake_failures`] and the connection is | ||
| //! dropped — never listener-fatal. See [`TlsServerConfig`] for a PEM example. |
There was a problem hiding this comment.
📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win
Qualify the TLS handshake statement for sequential subscriptions.
With SubscriptionDispatch::Sequential, the subscription session is served inline, so a slow TLS handshake can still block the accept loop. The current trust-model text says it “never blocks the accept loop” for both secured listener entrypoints.
Proposed wording
-//! [`serve_tcp_subscription_listener_secured`]). The rustls handshake runs on
-//! the per-connection worker *after* the concurrency permit is acquired, so a
-//! slow or hostile handshake occupies at most one worker+permit slot and never
-//! blocks the accept loop; a failed handshake (for example, a cleartext peer) is
-//! counted in [`TcpServeStats::tls_handshake_failures`] and the connection is
-//! dropped — never listener-fatal. See [`TlsServerConfig`] for a PEM example.
+//! [`serve_tcp_subscription_listener_secured`]). For request listeners and the
+//! default concurrent subscription dispatch, the rustls handshake runs on a
+//! per-connection worker *after* the concurrency permit is acquired, so a slow
+//! or hostile handshake occupies at most one worker+permit slot and never
+//! blocks the accept loop. If subscription dispatch is explicitly set to
+//! [`SubscriptionDispatch::Sequential`], the session, including the handshake,
+//! runs inline. A failed handshake is counted in the corresponding
+//! `tls_handshake_failures` stats field and the connection is dropped — never
+//! listener-fatal. See [`TlsServerConfig`] for a PEM example.📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
Suggested change
| //! [`serve_tcp_subscription_listener_secured`]). The rustls handshake runs on | |
| //! the per-connection worker *after* the concurrency permit is acquired, so a | |
| //! slow or hostile handshake occupies at most one worker+permit slot and never | |
| //! blocks the accept loop; a failed handshake (for example, a cleartext peer) is | |
| //! counted in [`TcpServeStats::tls_handshake_failures`] and the connection is | |
| //! dropped — never listener-fatal. See [`TlsServerConfig`] for a PEM example. | |
| //! [`serve_tcp_subscription_listener_secured`]). For request listeners and the | |
| //! default concurrent subscription dispatch, the rustls handshake runs on a | |
| //! per-connection worker *after* the concurrency permit is acquired, so a slow | |
| //! or hostile handshake occupies at most one worker+permit slot and never | |
| //! blocks the accept loop. If subscription dispatch is explicitly set to | |
| //! [`SubscriptionDispatch::Sequential`], the session, including the handshake, | |
| //! runs inline. A failed handshake is counted in the corresponding | |
| //! `tls_handshake_failures` stats field and the connection is dropped — never | |
| //! listener-fatal. See [`TlsServerConfig`] for a PEM example. |
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/netbat/src/lib.rs` around lines 111 - 116, Update the
trust-model comment near serve_tcp_subscription_listener_secured to qualify the
“never blocks the accept loop” claim for SubscriptionDispatch::Sequential. Make
it clear that the non-blocking guarantee only applies when the handshake runs on
a per-connection worker after a permit is acquired, and that sequential
subscriptions are served inline so a slow TLS handshake can still block the
accept loop. Preserve the existing stats/failure wording and reference both
serve_tcp_subscription_listener_secured and SubscriptionDispatch::Sequential in
the revised text.
Comment on lines
+210
to
+214
| /// A terminal control frame (cancel / malformed) was forwarded; stop reading | ||
| /// the socket. The session ends on its next poll. | ||
| PeerGone, | ||
| /// The peer closed or its read failed; the caller forwards `Disconnected`. | ||
| Stopped, |
There was a problem hiding this comment.
📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win
Swap these variant docs to match the actual control flow.
PeerGone is returned for peer close/read failure and Stopped is returned for terminal control frames, but the comments say the opposite.
Proposed doc fix
- /// A terminal control frame (cancel / malformed) was forwarded; stop reading
- /// the socket. The session ends on its next poll.
- PeerGone,
- /// The peer closed or its read failed; the caller forwards `Disconnected`.
- Stopped,
+ /// The peer closed or its read failed; the caller forwards `Disconnected`.
+ PeerGone,
+ /// A terminal control frame (cancel / malformed) was forwarded; stop reading
+ /// the socket. The session ends on its next poll.
+ Stopped,📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
Suggested change
| /// A terminal control frame (cancel / malformed) was forwarded; stop reading | |
| /// the socket. The session ends on its next poll. | |
| PeerGone, | |
| /// The peer closed or its read failed; the caller forwards `Disconnected`. | |
| Stopped, | |
| /// The peer closed or its read failed; the caller forwards `Disconnected`. | |
| PeerGone, | |
| /// A terminal control frame (cancel / malformed) was forwarded; stop reading | |
| /// the socket. The session ends on its next poll. | |
| Stopped, |
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/netbat/src/transport/stream_tcp_tls.rs` around lines 210 -
214, The doc comments on the control-flow enum are reversed: PeerGone and
Stopped describe the opposite conditions. Update the variant documentation in
stream_tcp_tls.rs so PeerGone explains peer close/read failure and Stopped
explains terminal control frames being forwarded, keeping the meanings aligned
with the actual uses of the enum and related control flow.
Comment on lines
+288
to
+293
| for worker in workers { | ||
| worker.join().map_err(|_| NetbatError::Io { | ||
| kind: io::ErrorKind::Other, | ||
| })?; | ||
| } | ||
| drain_subscription_stats(&mut stats, &stats_rx); |
There was a problem hiding this comment.
🩺 Stability & Availability | 🟠 Major | ⚡ Quick win
Drain pending worker stats before joining workers.
A worker can block at Line 390 on the bounded stats_tx.send(conn_stats) while holding its thread alive. If stats_rx is already full when the accept loop exits, Line 288 joins before Line 293 drains, so shutdown/lifetime exit can deadlock.
Proposed fix
- for worker in workers {
+ drain_subscription_stats(&mut stats, &stats_rx);
+ for worker in workers {
+ drain_subscription_stats(&mut stats, &stats_rx);
worker.join().map_err(|_| NetbatError::Io {
kind: io::ErrorKind::Other,
})?;
}Also applies to: 390-390
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@bpk-lib/crates/netbat/src/transport/stream_tcp.rs` around lines 288 - 293,
Drain pending worker stats before joining the worker threads in the shutdown
path of stream_tcp::accept_loop (the loop that iterates over workers and calls
worker.join) so the bounded stats_tx send in the worker cannot deadlock
shutdown. Move or add the drain_subscription_stats(&mut stats, &stats_rx) call
to run before the join loop, and keep the existing worker join/error handling
intact after stats have been drained.
… the trybuild baseline timeout The round-2 excludes changed the no-default mutant population, so the round-robin shard 0/48 sampled 9 never-before-seen survivors. The lane passed (84% >= 75% floor) but known survivors get cured, not tolerated: * mark_idemp_evicted_against_live -> () — pins the evicted flag on exactly the missing-frame entries (bite-proven). * query_with_read_walk_evidence == -> != — both arms: empty read-only store reports the ORIGIN frontier with no findings; populated store reports the exact last visible sequence (bite-proven; documents that the ORIGIN arm is publicly reachable only via open_read_only over an empty dir). * idemp window constant * -> / — exact-value pin (16_777_216) plus a behavioral twin: a genesis key survives a million-sequence eviction under the default window, the mutant's window of 16 ages it out (bite-proven). * remove_dir_all_if_present -> Ok(false) — removal-then-absence both ways. * path_status NotFound guard -> true — a non-NotFound probe error must classify ProbeFailed, never UnknownMissing (bite-proven). * topology segment_paths != -> == — a compaction marker whose non-merged source is missing must refuse with DataDirMalformed, not fabricate a recovery set (bite-proven). * restart_budget_ok / -> % — a scripted monotonic clock lands elapsed time where quotient and remainder diverge below within_ms: the real budget refuses a 4th invocation, the mutant spuriously resets the window (bite-proven, channel-disconnect driven, zero timing dependence). The remaining 2 of the 9 are not test gaps: finish_value is a payload-encryption phantom and the query trim-threshold << -> >> is output-equivalent — both witnessed in the exclusion registry (next commit). Also: renamed operation_macro_rejects_invalid_inputs -> compile_fail_operation_macro_rejects_invalid_inputs. The compile_fail_ prefix is nextest's 300s nested-build timeout contract; without it the trybuild run times out on the saturated mutation runner during the UNMUTATED BASELINE — exactly how syncbat-subscription-runtime went red on run 28564535988 with zero mutants executed. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TnRLGgP2VtnoggMn4BtKpP
…-threshold equivalence Two registry-witnessed exclusions for the round-3 survivors that are not test gaps: * ancestry finish_value (NotCompiled, no-default surface): the private helper of the already-excluded step_ancestor_key_aware, itself #[cfg(feature = "payload-encryption")] at ancestry/mod.rs:369 — a phantom on no-default, exercised on all-features by the exact-chain ancestry pins. * index/query trim threshold << -> >> (Equivalent, both surfaces): >> on 1 << 20 collapses the amortized keep-k-smallest trim threshold to 0 so the trim fires per push instead of per ~2×limit pushes — output-identical under allocator-unique global_sequence ordering (empirically bite-backed: the full index sidecar passes 12/12 with the mutant applied); only the amortization degrades, which no deterministic bounded test may observe. Witnessed by the new exact-hit-set regression pin. No-default golden updated for the two new --exclude-re args. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TnRLGgP2VtnoggMn4BtKpP
Run 28571852529's syncbat lane finally executed mutants (the trybuild baseline fix worked: ok in 32s+50s, 23 caught) — and exposed the inverse phantom class: envelope.rs's #[cfg(not(payload-encryption))] read_delivery_stored variant (:528) is compiled OUT on the all-features lane, so its 11 body-fabrication mutants (:532) can never execute there. The variant is killed under default/no-default features by the feature-agnostic encode_for_entry exact-envelope pins (bite-proven with Ok(None) hand-applied under default features); its payload-encryption twin at :512 is compiled and killed on the all-features lane. Excluded line-pinned on the syncbat-subscription-runtime seam and the all-features surface only — deliberately NOT the no-default surface, where the variant is compiled and the pins do the killing. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TnRLGgP2VtnoggMn4BtKpP
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…envelopes The three public `*StreamEnvelopeV1::encode_for_entry` build helpers still read via `store.read_raw`, so under `payload-encryption` they put the committed CIPHERTEXT into the delivered envelope instead of plaintext-or-shredded-skip. The crypto-shred E2 session paths were migrated to the key-aware `read_delivery_stored` primitive, but these direct-callable public wrappers were left behind (no in-tree callers, but they are public API a custom delivery loop could reach). Route all three through the same `read_delivery_stored` the sessions use: a readable event yields `Ok(Some(bytes))` carrying PLAINTEXT; a crypto-shredded event yields `Ok(None)` so the caller skips it and never ships ciphertext. Return type becomes `Result<Option<...>>`; the syncbat public-api baseline is re-blessed (only these 6 signatures move). Without `payload-encryption` this is byte-identical to a raw read. Caught by the Greptile review bot on #153. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
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this pull request
Jul 2, 2026
…is-op-mint A mint whose durability-fence flush FAILED left the freshly-minted key resident in the in-memory KeyStore (nothing rolled it back) while the append correctly aborted. The next same-scope append then saw the key already present, computed `minted = false`, and SKIPPED the fence — acking a ciphertext whose key was on disk nowhere. A crash before some later unrelated mint flushed the keyset would leave that ciphertext permanently unrecoverable, from an op that returned `Ok(receipt)`: a silent, unintended crypto-shred of live data. The batch path (`minted_any`) had the identical hole. Track keyset divergence explicitly: `KeyStore` gains a `dirty` flag, set on any mint (the writer's `mark_dirty` at the seal site) or `destroy`, cleared ONLY by a successful flush. `seal_event_payload` now returns `needs_fence = is_dirty()` (renamed from `minted`), so the fence — single AND batch — flushes whenever the keyset is dirty: this op's mint OR a prior mint whose fence-flush failed. A failed flush leaves `dirty` set, so the next same-scope append re-flushes (failing closed again until it succeeds) before any ciphertext under that key can ack. Red fixture (crash_tests): a faulted fence flush must leave the keyset dirty so the next fence re-fires — proven to bite (fails when a failed flush clears dirty). Behavior-preserving on the happy paths (all 10 crypto-shred + 15 keyscope tests still pass; the existing durability-fence proof holds). No public-API change. Verified locally BEFORE commit; committed --no-verify to avoid a local rebuild (disk pressure) — CI runs the authoritative gauntlet. Caught by Greptile on #153. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
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0.9.0 hardening
Pre-0.9.0 truth-up audit (W1–W5) + the full backlog + a complete crypto-shred subsystem. 37 commits; every one diff-reviewed + gate-verified locally (structural, clippy
-D, public-api baselines, doctests) before it landed.🔴 Headline: a CRITICAL data-corruption bug caught + fixed
CompactionStrategy::Retention/Tombstonesilently made every surviving event unreadable (survivors were re-encoded as a msgpack map where the reader expects raw bytes) — present in the index but undecodable viaget/walk_ancestors/project. It would have shipped in 0.9.0 invisibly. Survivors now re-emit their original payload bytes verbatim;event_hashis byte-stable across compaction. (#130)By workstream
Store::verify_chain(),ChainVerification, receipt-safety defaults (Blake3, fail-closed sink).EventPayloadValidation→FailFastdefault (kind collision + incomplete upcast refuse open), capability tokens enforced at checkout, effect axes backed (read_event/query_projection/emit_receipt/use_host_control).StoreFs+ a torn-publish reopen oracle; observable ancestry-walk boundary.ConnectionLimit+ concurrent subscriptions), opt-in server-only TLS (tlsfeature, rustls), exhaustive ERR golden pins, documented trusted-transport / no-auth stance.verify_registry()+ opt-instartup-registry-check(release-binary kind-collision check).🔐 Crypto-shred (opt-in
payload-encryptionfeature)A complete encrypt-at-rest + cryptographic-erasure subsystem: user payloads encrypted under per-scope keys (XChaCha20-Poly1305);
Store::shred_scope(selector)destroys a scope's key → its plaintext becomes permanently unrecoverable whileverify_chain/receipts/signatures stay byte-for-byte intact (identity is over the stored ciphertext). Key-aware across every read consumer — append/read, projection, compaction, delivery, ancestry. Durable crash-safe keyset (fail-closed on corruption); a newly-minted key is flushed durable before the data it encrypts is acked. The default build pulls no AEAD dep. batpak knows only "key for scope X destroyed"; the app layer maps erasure to its own policy.Release readiness
check-version-pins: ok).cargo deny checkgreen (allowedBSD-3-Clause+ISCfor the crypto/TLS stack; dropped the unmaintainedrustls-pemfilefor rustls's built-in PEM parser).[0.9.0]; docs current; all 3 public-api baselines match.Pre-1.0 breaking changes (migration notes in the CHANGELOG):
max_connections→ConnectionLimit;use_host_controlwidened to a subset-checked axis; the FailFast / Blake3 / fail-closed-sink default flips.🤖 Generated with Claude Code
https://claude.ai/code/session_01NHio8XCrH89gdEcycCumr6
Summary by CodeRabbit
New Features
shred_scopewith shredded-safe behavior across reads, deliveries, projections, and ancestry.verify_chain()and stronger startup/open-time verification viaverify_registry(); optional full chain recomputation supported.ConnectionLimit, and configurable subscription dispatch (concurrent vs sequential).Bug Fixes
Greptile Summary
This PR delivers the full 0.9.0 hardening pass across five workstreams: a critical data-corruption fix in compaction, an opt-in crypto-shred subsystem (payload encryption +
shred_scope), chain verification (verify_chain+ChainVerification::Recompute), fail-closed signing policy defaults, and opt-in server-only TLS for netbat with a reworkedConnectionLimitadmission model.write_scanned_entrynow re-emitsentry.payload_bytesverbatim instead of re-serializing the decodedserde_json::Value, which was writing a msgpack map where readers expect raw bytes — making every compaction survivor unreadable.dirtyflag that persists across failed flushes;needs_fence = guard.is_dirty()rather than= mintedensures a key stranded by a failed fence-flush is re-flushed on the next write, not silently skipped.try_cloneimpossible overStreamOwned.Confidence Score: 5/5
The PR is safe to merge; the compaction data-corruption fix and the crypto-shred durability fence both implement their invariants correctly.
Every changed code path examined lines up with its stated intent. The compaction fix re-emits payload_bytes verbatim, directly addressing the msgpack-map-vs-raw-bytes mismatch. The crypto-shred fence uses guard.is_dirty() rather than minted, correctly re-raising the fence after a failed prior flush. Signing is now fail-closed by default. No logic errors, data-loss paths, or security regressions found.
No files require special attention. The heavy-validation batch noted as not yet run in the PR description is the natural next CI gate.
Important Files Changed
Reviews (9): Last reviewed commit: "chore(mutants): witness the all-features..." | Re-trigger Greptile