Begin a new implementation phase. Activates when the user invokes /start-phase or asks momentum to run the start-phase recipe.
Work with concurrent workstreams (Rule 15). Activates when the session involves multiple active branches, cross-lane coordination, or when starting work that should not live on the current branch.
Record a new backlog item (bug, feature, tech debt, or enhancement) when you discover work that needs tracking. Activates when the session identifies unplanned work that should be tracked in the backlog.
Check spec structure health of the momentum project. Activates when the user runs `/validate`, asks for a health check, or when spec changes need verification before phase completion.
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Drive a single repo through its phase as part of a swarm. Activates when spawned by the conductor (the user's primary session) with a spawn directive. State lives in files; the conductor reads board.json between turns. Loads on the swarm-supervisor invocation only — not invoked directly by the user.
Read specs/status.md before starting any work in a momentum-managed project. Activates at the start of every new task to ensure the agent has current phase context. Codifies Rule 1 (Orient First).
Review a code diff for architectural fit, rule compliance, and pattern consistency. Returns Critical/Important/Minor findings only — does not modify code, does not refactor. Loaded by the review-code workflow alongside the security and QA reviewers.