init-context · git:20260820.5bb949c · 2026-08-20 · sha256 f6bc032f0dd5c0a0

init-context git:20260820.5bb949cA

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---
name: init-context
description: 'Set a project up with the surfaces manifest-dev works from — a North Star, a glossary, ADR conventions, and the context-file wiring that makes every session use them — seeding them from the project''s own history where there is any. Use when a repository has no CONTEXT.md or decision records, when adopting manifest-dev in an existing codebase, when starting a new project, or when the user asks to initialize project context, bootstrap ADRs, or reconstruct decisions from history.'
---

Install the project surfaces a repository needs so that every future session — and every teammate, with or without manifest-dev — works from the same direction, the same vocabulary, and the same decision record.

Two things get installed, and only the first is essential:

- **The wiring** — an ADR conventions file the project owns, a glossary, a North Star (the project's standing strategy surface: who it is for, what it promises, what winning means), and a project-context-file section that makes sessions read and maintain all three. This runs on every project, including one with no history at all.
- **A seed** — vocabulary and decision records reconstructed from the project's own history. This runs wherever there is history to read, and it is enrichment on top of the wiring, never a substitute for it.

Aim for a good starting point rather than a complete record. Most of a project's past reasoning is genuinely unrecoverable; a seed that is honest about what it could not recover is worth far more than one that reads complete and isn't.

## Flags

`--no-mine` skips the seed and installs the wiring alone. Mining otherwise runs wherever there is history — a project with no commits, no docs and no code simply has nothing to seed from, which needs no flag to express.

Interpret only top-level options as flags; quoted or code-formatted mentions of them are topic text.

## What already exists governs

Read before writing, and never overwrite a surface the project already maintains:

- **`docs/adr/CONVENTIONS.md` exists** → the project has its own ADR convention. It governs. Do not replace it; follow it for anything written this run, and skip the conventions step.
- **`CONTEXT.md` exists** (or the context named by a root `CONTEXT-MAP.md`) → load it. Mined vocabulary is proposed as additions to it, never as a replacement.
- **`NORTH_STAR.md` exists** → load it. Seeded content is proposed as additions or as evidence for lines it already carries — never as a rewrite: its positions change only by the owner's ruling, per the maintenance rules in `references/NORTH_STAR_FORMAT.md`.
- **`docs/adr/` holds records but there is no `CONVENTIONS.md`** → the project has an unwritten convention, and the records are the evidence of it. Infer it from them — naming scheme, which sections they carry, how they cross-reference, what the index looks like — and write the conventions file to describe *that*, adapting the shipped default rather than replacing it. Installing the default unchanged here would declare an existing corpus non-conforming, which is both wrong and the fastest way to get the file ignored. Where the corpus is inconsistent, or where following it would leave the index un-rebuildable, say so and let the user choose; never silently pick.
- **A project context file already carries some of this wiring** → add what is missing and leave the rest alone.

## The run

1. **Resolve the project context file.** Its name differs by CLI — `CLAUDE.md`, `AGENTS.md`, or another — so detect it rather than assuming. The detection table and per-CLI resolution order live in `../review-code/references/context-file-adherence.md`; read it and use it.

2. **Install the ADR conventions**, unless `docs/adr/CONVENTIONS.md` already exists. Copy `../figure-out/references/ADR_FORMAT.md` to `docs/adr/CONVENTIONS.md`, changing its opening as follows and nothing else:
   - retitle the heading to `# ADR Conventions`;
   - keep the sentence describing what ADRs are;
   - replace both the self-contained note and the whole `## Precedence` section with one paragraph stating that this file is the project's ADR convention and governs, that everything needed to decide and write is here with no tool or prior knowledge required, and that tooling carrying its own defaults defers to it.

   Everything from `## When a decision deserves a record` onward travels verbatim — the file is written to be self-sufficient, and a reader with no tooling must be able to follow it end to end.

   Where records already exist, this is not a straight copy: reconcile the default with the practice those records show, per *What already exists governs* above, and surface any divergence you had to resolve.

3. **Install the North Star**, unless `NORTH_STAR.md` already exists (then only propose per *What already exists governs*). Load `references/NORTH_STAR_FORMAT.md` — it carries the document skeleton, the nine fields, the four line states, and the maintenance rules — and write `NORTH_STAR.md` at the repository root. Seed only what the repository's own artifacts evidence, per the reference's *Produce it honestly* rules: each seeded line carries `hypothesis` or `evidence` with the artifact named, every unanswered field stays `empty` with its filling condition, and nothing is invented. The interview asks nothing beyond name-and-purpose-grade statables — the hard fields are their own later investigations, and the `empty` lines are the doc's to-do list. Artifact-seeding is mining: under `--no-mine`, write the bare skeleton instead — every field `empty` with its filling condition. Alongside the doc, emit the project-owned conventions copy at `docs/NORTH_STAR_CONVENTIONS.md` unless one exists (then it governs — same rule as the ADR conventions): the reference's content retitled `# North Star Conventions`, its ownership section replaced by one paragraph stating that this file is the project's North Star convention and governs, self-contained with no tooling required, and the installer-facing *project-surfaces section* chapter dropped — a project maintainer meets that section in the context file itself.

4. **Seed, unless `--no-mine`.** Load `references/MINING.md` and follow it. It covers what each source can and cannot yield, how a record says so when the reasoning is gone, and why glossary candidates are ratified rather than written.

5. **Wire the project context file.** Emit the project-surfaces section from `references/NORTH_STAR_FORMAT.md` — its template is the single source of the emitted text; adapt it to what the project has, extend an existing section rather than duplicating one, and add nothing beyond it, because this file is read on every session and every line here is a permanent cost. The template covers the North Star's residency and maintenance asymmetry, the glossary's residency, the decision-record triggers, and the one-act write rule; where the host supports imports, the session-start reads become imports, written as *the project context file*'s imports rather than a specific harness's filename.

6. **Report what landed**, per the *Reporting* section of `references/MINING.md`, which specifies what the report must cover. A run that skipped seeding still reports — what was installed, and that nothing was seeded because there was nothing to seed from.

## Empty input

Pointed at a repository with no commits, no documentation and no code, install the wiring and stop: the conventions file, a `CONTEXT.md` holding the project name, a one-line purpose and an empty Language section, a `NORTH_STAR.md` skeleton whose every field is `empty` with its filling condition, and the context-file section. Say that nothing was seeded because there was nothing to seed from. This is the greenfield case and it is a success, not a degraded run — a project that starts with its surfaces already wired is exactly the point.

With no project name or purpose available, ask for them. They are one line each and guessing them wrong seeds the glossary with a false premise.

## Gotchas

- **A codebase supplies unlimited nouns.** The temptation is to produce an impressive glossary. A glossary is read on every session forever, so an entry that is merely accurate is a permanent cost for no benefit. Under-produce deliberately.
- **Rich history is not typical history.** A project whose pull requests carry design rationale is unusual. Do not calibrate the run's ambition on the first well-documented commit you find.
- **Reconstructed reasoning is the failure mode.** Writing a plausible rationale for a decision whose actual rationale is lost produces a record that reads authoritative and is fiction. Recording the decision without the reasoning is correct; inventing the reasoning is not.
- **Do not restate the conventions in the project context file.** That file is loaded on every session; the conventions file is loaded when someone needs it. Duplicating the detail costs every session and creates a second copy that drifts.