use-cases-mcp-builders.md

MCP Builder Use Cases

Locale fits teams that need an agent policy layer for MCP hosts, A2A-style delegation, and orchestrators that want stronger control over tool use without becoming execution platforms themselves.

IDE preflight gate

An MCP-native host:

1. calls capabilities.get
2. verifies the token locally
3. locally preflights covered read and network actions
4. calls policy.evaluate for deploy, write, commerce, identity, secrets, and admin

Orchestrator boundary layer

A workflow engine:

1. issues one capability token per mission
2. distributes local verification and preflight to sub-agents
3. attaches capability and decision artifacts to logs or receipts

This is the natural fit for A2A and multi-agent systems that need delegation with verifiable boundaries.

Enterprise policy shim

A platform team:

1. runs the authority locally or in cloud
2. manages declarative packs under source control
3. validates integrations using host profiles, transcripts, chronology, and tests

Compatibility oracle

A host team:

1. replays golden transcripts
2. validates named host profiles
3. uses chronology and changelog to understand compatible changes over time

Search intent this page covers

• MCP policy enforcement
• agent policy layer
• safe tool use for AI agents
• A2A and multi-agent governance
• offline verification and attestation for agent actions