Estelle

A Shipshape-native coding agent CLI that runs Pi with Shipshape skills, context controls, model policy, and extension wiring.

What Estelle does

• Runs as a Pi extension inside normal conversational Pi chat
• Starts in Captain mode — the only role that talks to the user
• Automatically transitions to QM/Crew/Bosun with enforced context isolation
• Constrains role tool permissions (Captain can't edit code, QM can't edit specs, etc.)
• Installs Shipshape skills and a subagent extension so QM can spawn Crew
• Provides init and doctor CLI commands for setup and health checks

Quick start

npx estelle init --yes --json
npx estelle

Shipshape workflow

Estelle implements the Shipshape spec-driven development workflow:

1. Captain — human-facing discovery, durable specs, and role transitions
2. QM — fresh-context verification from specs only (no Captain chat leakage)
3. Crew — focused implementation of one failing target
4. Bosun — repo hygiene, verification recheck, local commit custody

Only Captain talks to the user. Internal roles run automatically with constrained tools and isolated context.

Configuration

npx estelle init creates:

• .estelle/config.json
• .estelle/context-policy.json
• .estelle/model-policy.json
• .estelle/extensions.json

License

BSD Zero Clause License (0BSD)