Optimize Prompt
One deliberate rewrite pass that applies Anthropic's current prompt-engineering best practices to an existing draft prompt (SKILL.md, scheduled-task prompt, API/system prompt, one-off task prompt). Use when the user types /optimize-prompt or says "optimize this prompt" / "improve this prompt" / "tune this prompt" / "apply prompt best practices to X". Input is a pasted prompt, @-mentioned file, or…
Breakdown
Convergent, action-first problem decomposition (the terse twin of /fanout). Use ONLY when the user types /breakdown or says "break this down" / "break it down" / "decompose this". Takes ONE tangled or ambiguous problem and returns the single smallest next ACTION plus a collapsed full plan. Terse, no hand-holding, no capability narration. Do NOT use for open-ended ideation with many valid answers…
Prevent
You just did something documented knowledge says not to do -- a rule, prior
Necromancy
Recover a Claude Code session that died before a CHECKPOINT was written
Plain
Re-explain a dense, jargon-loaded, or code-stuffed response in plain, generous
Spec
Efficiently produce a spec into the current project AND drive its
Dumb
The user is telling you the last thing you said or did was wrong, lazy, or
Prove
The user suspects something in your last response was made up, or contradicts
Checkpoint
Rewrite the current project's CHECKPOINT.md in place to the harness
Outside
Force the session out of its own head before committing to an approach -- one cheap reconnaissance pass over shipped solutions, the user's other projects, and the user's notes. Use when the user types /outside or says "get an outside view" / "check prior art" / "are we reinventing the wheel" / "has anyone already built this" / "look around before we build this". Sits between a single-shot answer…
Fanout
Explicit-invoke divergent-ideation booster (a 5-frame fanout run natively via the Agent tool). Use ONLY when the user types /fanout or says "run a fanout" / "fanout this" / "give me frames on X". Runs 5 parallel cognitive-frame ideation agents + a critic pass on an OPEN-ENDED problem with many valid answers (design, API surface, naming, strategy, hypothesis generation, "give me a few ways to...")…
Redteam
One focused adversarial pass on a claim, plan, or answer (the cheap middle gear between a single-shot answer and the ~7x-token /fanout). Use ONLY when the user types /redteam or says "push back on this" / "red-team this" / "stress-test this". Fires ONE adversarial pass that assumes the target is wrong and hunts the fatal flaw. Do NOT use for 5-way ideation (that is /fanout) or for convergent fact…