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constitution

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Use when setting or amending a project's non-negotiables — stack canon, quality bars, conventions, security/a11y floors — as numbered, testable rules later phases obey, and drafting the REVIEW.md the reviewer reads. ASDD's base stage; writes 02-DOCS/wiki/sdd/constitution.md and REVIEW.md at the project root. NOT a feature spec (that is `specify`), NOT the technical plan (that is `plan`), NOT the wiki itself (that is `harness`).

skills/constitution/SKILL.md

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# constitution — the project's non-negotiable principles

*ASDD's base stage (`../asdd/SKILL.md`). Run once per project, then amend. It writes down the rules every later phase obeys — stack canon, quality bars, conventions — and the `REVIEW.md` the reviewer reads first. Everything downstream — specify, plan, analyze, implement, verify, review — reads these as guardrails.*

A constitution is small, durable, and enforceable. It is **not** a wiki of everything you know about the project (that is what `02-DOCS/wiki/` already is, run by the `harness`). It is the short list of principles that, if violated, mean the work is wrong regardless of whether it runs. If a rule here cannot be checked or pointed at later, it does not belong here — move it to the stack wiki and link it.

Not this phase: *what to build* → `../specify/SKILL.md`; the technical approach for one feature → `../plan/SKILL.md`; setting up `01-TOOLS/` + `02-DOCS/` or capturing general project knowledge → `harness`; concrete stack mechanics (*how* to configure Ruff, pytest, Tailwind tokens) → the relevant stack skill (`../fastapi/SKILL.md`, `../nextjs/SKILL.md`, `../go/SKILL.md`, `../postgresdb/SKILL.md`, `../flutter/SKILL.md`, `../design/SKILL.md`, `../secure-coding/SKILL.md`). The constitution *names* the bar; the stack skill *enforces* it.

## Model tier — `heavy` (opt-in routing)

This phase's default model tier is **`heavy`** — it sets the project's non-negotiables, the highest-leverage decisions in the repo. Routing is **off** unless `models.enabled: true` in `02-DOCS/wiki/sdd/config.yaml`. When on: resolve this phase's tier (`models.overrides` wins over `models.phases`), map it to a model via `models.tiers`, and apply per `../asdd/references/model-routing.md` — announce the switch in one line when it differs from the session model, and dispatch any `Task`/`parallel` subagents on that model. Routing off or no profile → honor the session model silently. Never fake a switch a tool can't make; skip routing on a one-line change.

## Honor the register first
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