Chapter 12 · Setup Matt Pocock Skills
Subchapter 12.2
domain.mdMarkdown2 KBView on GitHub
How the engineering skills should consume this repo’s domain documentation when exploring the codebase.
CONTEXT.md at the repo root, orCONTEXT-MAP.md at the repo root if it exists — it points at one CONTEXT.md per context. Read each one relevant to the topic.docs/adr/ — read ADRs that touch the area you’re about to work in. In multi-context repos, also check src/<context>/docs/adr/ for context-scoped decisions.If any of these files don’t exist, proceed silently. Don’t flag their absence; don’t suggest creating them upfront. The /domain-modeling skill (reached via /grill-with-docs and /improve-codebase-architecture) creates them lazily when terms or decisions actually get resolved.
Single-context repo (most repos):
/
├── CONTEXT.md
├── docs/adr/
│ ├── 0001-event-sourced-orders.md
│ └── 0002-postgres-for-write-model.md
└── src/Multi-context repo (presence of CONTEXT-MAP.md at the root):
/
├── CONTEXT-MAP.md
├── docs/adr/ ← system-wide decisions
└── src/
├── ordering/
│ ├── CONTEXT.md
│ └── docs/adr/ ← context-specific decisions
└── billing/
├── CONTEXT.md
└── docs/adr/When your output names a domain concept (in an issue title, a refactor proposal, a hypothesis, a test name), use the term as defined in CONTEXT.md. Don’t drift to synonyms the glossary explicitly avoids.
If the concept you need isn’t in the glossary yet, that’s a signal — either you’re inventing language the project doesn’t use (reconsider) or there’s a real gap (note it for /domain-modeling).
If your output contradicts an existing ADR, surface it explicitly rather than silently overriding:
Contradicts ADR-0007 (event-sourced orders) — but worth reopening because…