Agent Contracts

Role contracts for each tier of the Colibri agent hierarchy. Every tier has an explicit contract describing authority, responsibilities, and writeback obligations.

Contents

• Sigma Orchestrator — T1 Contract — round planning (Phase A), wave gating (Phase W), sealing (Phase B).
• PM Contract — T2 — backlog → todo promotion, executor dispatch, pipeline management.
• Executor Contract — T3 — 5-step chain, worktree discipline, implementation.
• Writeback Protocol — task_update + thought_record ordering; proof-grade Merkle anchoring.

See also

• colibri-system.md — canonical vision, including the four-tier hierarchy (T0..T4).
• docs home.

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Table of contents

• Executor Contract — T3
• PM Contract — T2
• Sigma Orchestrator — T1 Contract
• Writeback Protocol