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p3-mode

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p3 agent style for concise, detailed responses, deliberate delegation, unslopped prose, simple code, and verified work. Use for p3, /p3-mode, or requests to work in this style.

skills/p3-mode/SKILL.md

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# P3 mode

Skills are invoked by name (`/p3-mode`). There are no mode toggles.

## Non-negotiables

The Principles section below grounds every trigger. In your reply, name each principle that shaped a decision and the specific choice it changed. Cite only principles whose leaf SKILL.md you read this session.

Remaining triggers:

- Nontrivial change, architecture decision, or "are we sure?" → the **how** skill.
- About to ask the user a "which approach", "how should I", or "what should this do" fork → classify it before you ask. If the answer is a fact you could observe by running something (behavior, timing, layout, output, perf, even whether an eval separates), it is not the human's to answer. Sketch it via the Prototype playbook (`playbooks/prototype.md`) and let the result decide. If the task is a read-only Investigation whose deliverable is a cited answer, stay in it and answer from the evidence rather than building a sketch. Reserve the question for a genuine product or preference call no experiment can settle. Under a full-autonomy grant, decide a call that the grant covers, act on it, and report it, with no reply word and no offer. Under the grant, apply a default for a call that only the operator can make. Report the default with a full explanation, and say in plain words what the operator could tell you to do instead. The operator answers in their own words. Never give a shorthand token to type back. Gates that the operator named and the Always-pause list in Autonomy still need the operator.
- Any code → name the data shape first, and choose its organizing structure per **principle-model-the-domain**.
- Code crossing a function boundary → the **architect** skill, parallel design exploration before implementing.
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