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Test
80 lines
3.3 KiB
Markdown
80 lines
3.3 KiB
Markdown
---
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name: domain-model
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description: Grilling session that challenges your plan against the existing domain model, sharpens terminology, and updates documentation (CONTEXT.md, ADRs) inline as decisions crystallise. Use when user wants to stress-test a plan against their project's language and documented decisions.
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disable-model-invocation: true
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---
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Interview me relentlessly about every aspect of this plan until we reach a shared understanding. Walk down each branch of the design tree, resolving dependencies between decisions one-by-one. For each question, provide your recommended answer.
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Ask the questions one at a time, waiting for feedback on each question before continuing.
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If a question can be answered by exploring the codebase, explore the codebase instead.
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## Domain awareness
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During codebase exploration, also look for existing documentation:
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### File structure
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Most repos have a single context:
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```
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/
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├── CONTEXT.md
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├── docs/
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│ └── adr/
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│ ├── 0001-event-sourced-orders.md
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│ └── 0002-postgres-for-write-model.md
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└── src/
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```
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If a `CONTEXT-MAP.md` exists at the root, the repo has multiple contexts. The map points to where each one lives:
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```
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/
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├── CONTEXT-MAP.md
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├── docs/
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│ └── adr/ ← system-wide decisions
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├── src/
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│ ├── ordering/
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│ │ ├── CONTEXT.md
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│ │ └── docs/adr/ ← context-specific decisions
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│ └── billing/
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│ ├── CONTEXT.md
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│ └── docs/adr/
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```
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Create files lazily — only when you have something to write. If no `CONTEXT.md` exists, create one when the first term is resolved. If no `docs/adr/` exists, create it when the first ADR is needed.
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## During the session
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### Challenge against the glossary
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When the user uses a term that conflicts with the existing language in `CONTEXT.md`, call it out immediately. "Your glossary defines 'cancellation' as X, but you seem to mean Y — which is it?"
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### Sharpen fuzzy language
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When the user uses vague or overloaded terms, propose a precise canonical term. "You're saying 'account' — do you mean the Customer or the User? Those are different things."
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### Discuss concrete scenarios
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When domain relationships are being discussed, stress-test them with specific scenarios. Invent scenarios that probe edge cases and force the user to be precise about the boundaries between concepts.
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### Cross-reference with code
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When the user states how something works, check whether the code agrees. If you find a contradiction, surface it: "Your code cancels entire Orders, but you just said partial cancellation is possible — which is right?"
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### Update CONTEXT.md inline
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When a term is resolved, update `CONTEXT.md` right there. Don't batch these up — capture them as they happen. Use the format in [CONTEXT-FORMAT.md](./CONTEXT-FORMAT.md).
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### Offer ADRs sparingly
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Only offer to create an ADR when all three are true:
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1. **Hard to reverse** — the cost of changing your mind later is meaningful
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2. **Surprising without context** — a future reader will wonder "why did they do it this way?"
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3. **The result of a real trade-off** — there were genuine alternatives and you picked one for specific reasons
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If any of the three is missing, skip the ADR. Use the format in [ADR-FORMAT.md](./ADR-FORMAT.md).
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