Ready-to-Review Slacker

Slack bot that tracks GitHub pull requests and notifies reviewers when it's their turn. Part of the https://codegroove.dev/ ecosystem of developer acceleration tools.

Quick Start

Ready to get started? Install the Slack app and configure your repositories:

→ Setup Guide - Complete setup instructions, emoji meanings, and notification settings

Features

• Creates Slack threads for new PRs with status emojis
• Smart notifications: Delays DMs if user already notified in channel
• Native Slack app home dashboard
• Channel auto-discovery: repos automatically map to same-named channels
• Configurable notification settings via YAML in your repos
• Multi-org and multi-workspace support
• Daily reminder system with timezone detection
• Reliable delivery: Persistent state and cross-instance deduplication

Self-Hosting

Want to run your own instance? See the comprehensive deployment guide:

→ Deployment Guide - Slack app setup, OAuth credentials, and Cloud Run deployment

Quick start:

git clone https://github.com/codeGROOVE-dev/slacker.git
cd slacker
make build

# Single-workspace (self-hosting for your org):
make deploy-server

# Multi-workspace (SaaS/Marketplace):
make deploy

Note: make deploy deploys both server and registrar for multi-workspace support. Use make deploy-server for single-workspace installations.

Slack App Configuration

Required Bot Token Scopes

Your Slack app needs these OAuth scopes:

Bot Token Scopes:

• app_mentions:read - Read mentions of the app
• channels:history - View messages in public channels
• channels:read - View basic information about public channels
• chat:write - Send messages as the bot
• chat:write.public - Send messages to channels the bot isn't a member of
• commands - Add shortcuts and/or slash commands
• im:history - View messages in direct messages
• im:read - View basic information about direct messages
• im:write - Start direct messages with people
• reactions:write - Add and edit emoji reactions
• team:read - View workspace name and domain (required for workspace validation)
• users:read - View people in the workspace

Event Subscriptions

Enable these events:

• app_home_opened - User opened the app home
• app_mention - App was mentioned
• message.channels - Message posted to channel
• message.im - Message posted to direct message

Environment Configuration

We HIGHLY recommend the use of a secret manager instead of environment variables for credentials.

For local development, set environment variables:

SLACK_BOT_TOKEN=xoxb-...
SLACK_SIGNING_SECRET=...
GITHUB_APP_ID=...
GITHUB_PRIVATE_KEY=...
GITHUB_INSTALLATION_ID=...

# Optional: Enable Cloud Datastore for multi-instance coordination
# DATASTORE=slacker    # Database ID to use (omit for JSON-only mode)

Configure repos by adding .codeGROOVE/slack.yaml:

global:
    prefix: ":postal_horn:"
    slack: myorg-workspace.slack.com
    reminder_dm_delay: 65  # Minutes to wait before DMing users tagged in channel (default: 65, 0 = disabled)
    daily_reminders: true  # Daily reminders between 8-9am local time (default: true)

channels:
    all-repos:
        repos:
            - "*"
    
    engineering:
        repos:
            - myrepo
            - anotherepo
    
    # Mute auto-discovered channel for goose repo
    goose:
        mute: true
    
    # Override auto-discovery - send myrepo to announcements instead of #myrepo
    announcements:
        repos:
            - myrepo

Channel Auto-Discovery

By default, repos automatically map to channels with the same name:

• Repository goose → Channel #goose
• Repository my-service → Channel #my-service
• Repository api-server → Channel #api-server

Override auto-discovery by:

1. Explicit mapping: Add repo to a channel's repos list
2. Muting: Set mute: true for the auto-discovered channel name
3. Wildcard: Use "*" in a channel to catch all repos

Usage

Slack commands:

• /r2r dashboard - View your PR dashboard
• /r2r help - Show help

The dashboard is also available in the app's Home tab or at https://dash.ready-to-review.dev/

Smart Notification Logic

• Channel notifications: If a user is tagged in a channel they're in, DMs are delayed by reminder_dm_delay (default: 65 minutes)
• Immediate DMs: If a user isn't in the notification channel, they get immediate DMs
• Daily reminders: Sent between 8-9am local time if enabled and >8 hours since last notification
• Anti-spam: Rate limited to 1 DM per minute per user
• Deduplication: Cross-instance coordination prevents duplicate messages during deployments

Development

make fmt        # Format code
make lint       # Run linters
make test       # Run tests
make build      # Build binary

Dependencies

• sprinkler - WebSocket hub for GitHub webhooks
• turnclient - PR state analysis

Documentation

• Setup Guide - End-user setup for SaaS version
• Deployment Guide - Self-hosting and OAuth configuration
• Architecture - Code structure and design decisions
• Contributing - Development guidelines