Scope & verification discipline for a working session. Triggers when about to claim "done / fixed / passing", when a test is about to be weakened, skipped, commented out or deleted to get a suite green, when a refactor, abstraction or dependency appears that the task never asked for, and on "audit this diff" / "did we actually verify that?". Guidance the model follows — it is not enforcement; nothing here can block a tool call.
The MASTER CLAUDE leader/conductor. Triggers on "master claude", "set up master claude", "mc setup", "onboard me", "build my team", "what's new", or when starting work in a new/unfamiliar project. It interviews you (grill-me), maps the project, then assembles a tailored team from the installed skills and agents — Sentinel the project cartographer plus planning, review, understanding, guardrail and security specialists — and runs it on your work. It builds the best `.claude/` workspace per project, delegates to parallel subagents (choosing the right model per agent), brainstorms hard and decides fast, keeps a complete view of every installed capability, keeps itself and you current with the newest Claude Code features, and proactively offers the right tool the moment a need shows up.
Continuity across long sessions. Snapshots in-progress work before context compaction and restores it after, and nudges auto-compaction toward a natural breakpoint so nothing important is lost mid-task.
Stay current with Claude Code and Claude itself. Triggers on "what's new", "what can Claude Code do now", "is there a newer/better way", "update master claude", "which model should I use", or before relying on any claim about a Claude Code feature, model, price, or limit. Checks the installed version, the live changelog, and the harness surface MASTER CLAUDE depends on — then reports only the deltas that matter for this project.
How MASTER CLAUDE picks the right model for each agent and task. Triggers on "which model", "pick a model", "model selection", "use haiku/sonnet/opus", "cheaper model", "model per agent", or whenever spawning a subagent/team and choosing its model, or optimizing cost vs. quality on a long run. Gives a role→model heuristic, the "turn count beats token price" rule, the effort dial, and the cost math so the team is both strong where it matters and cheap where it doesn't.
How MASTER CLAUDE delegates work to subagents and teams. Triggers on "delegate", "spawn agents", "parallel agents", "fan out", "run these in parallel", "subagent", "orchestrate", "build a team for this", or whenever a task splits into independent chunks, needs a fresh-eyes review, or means reading many files. Teaches the orchestrator-worker pattern: pick the right primitive (subagent vs agent-team vs background session), write a complete delegation brief, parallelize only when it pays, scale effort to the task, and verify with an adversarial reviewer. Use to plan and run any multi-agent push.
Run parallel or risky work without collisions using git worktrees. Triggers on "worktree", "isolate this change", "try this without touching main", "run these agents in parallel safely", "spike/experiment", or whenever multiple subagents or features would edit the same tree at once. Each task gets its own branch + working directory, so concurrent work never clobbers another's files and a failed experiment is thrown away by deleting a folder. Pairs with subagent-orchestration for true parallel building.
Turn an approved spec + decomposition into a precise, zero-context implementation plan document that another engineer (or a fresh subagent) can execute with no prior knowledge. Triggers on "write the plan", "write an implementation plan", "turn this spec into a plan", or after grill-me/cap-spec-smith + cap-decomposer have produced a spec and a step list, before any code. Each task carries exact file paths, interface contracts, real test code, exact commands and their expected output — no placeholders. The plan is the contract; cap-execute-plan (or parallel subagents) runs it.