grill-with-docs

disable-model-invocation	true
name	grill-with-docs
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.
author	mattpocock

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.

Ask the questions one at a time, waiting for feedback on each question before continuing.

If a question can be answered by exploring the codebase, explore the codebase instead.

Domain awareness

During codebase exploration, also look for existing documentation:

File structure

Most repos have a single context:

/
├── CONTEXT.md
├── {{ env "DOCS_INTERNAL_DIR" }}/
│   └── adr/
│       ├── 0001-event-sourced-orders.md
│       └── 0002-postgres-for-write-model.md
└── src/

If a CONTEXT-MAP.md exists at the root, the repo has multiple contexts. The map points to where each one lives:

/
├── CONTEXT-MAP.md
├── {{ env "DOCS_INTERNAL_DIR" }}/
│   └── adr/                      ← system-wide decisions
├── src/
│   ├── ordering/
│   │   ├── CONTEXT.md
│   │   └── {{ env "DOCS_INTERNAL_DIR" }}/adr/        ← context-specific decisions
│   └── billing/
│       ├── CONTEXT.md
│       └── {{ env "DOCS_INTERNAL_DIR" }}/adr/

Document Naming and Location Rules

1. Glossary & Context Map (CONTEXT.md / CONTEXT-MAP.md)

• Single Context (most repos): Use a single CONTEXT.md at the repo root.
• Multiple Contexts: A CONTEXT-MAP.md at the repo root lists the contexts, their directory locations, and relationships.
• Discovery and Inference:
  • If CONTEXT-MAP.md exists, read it to locate individual context-specific directories.
  • If only a root CONTEXT.md exists, treat the repo as a single context.
  • If neither exists, create a root CONTEXT.md lazily when the first glossary term is resolved.
  • When multiple contexts exist, infer which context directory the current topic belongs to. If unclear, ask.
• Format: For new glossary files, use the template in assets/context-template.md. For new context maps, use assets/context-map-template.md.

2. Architecture Decision Records (ADRs)

• Location: System-wide ADRs live in {{ env "DOCS_INTERNAL_DIR" }}/adr/. Context-specific ADRs live in {{ env "DOCS_INTERNAL_DIR" }}/adr/ relative to their respective context directory.
• Directory Creation: Create the adr/ directory lazily — only when the first ADR is needed.
• Naming & Sequential Numbering: Use 0001-slug.md, 0002-slug.md, etc., with sequential 4-digit zero-padded numbers. Scan the target adr/ folder for the highest existing number and increment by one.
• Format: For new ADRs, use the template in assets/adr-template.md.

During the session

Challenge against the glossary

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?"

Sharpen fuzzy language

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."

Discuss concrete scenarios

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.

Cross-reference with code

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?"

Update CONTEXT.md inline

When a term is resolved, update the appropriate CONTEXT.md right there. Don't batch these up — capture them as they happen. Use the template in assets/context-template.md (or assets/context-map-template.md if updating a context map).

CONTEXT.md should be totally devoid of implementation details. Do not treat CONTEXT.md as a spec, a scratch pad, or a repository for implementation decisions. It is a glossary and nothing else.

Offer ADRs sparingly

Only offer to create an ADR when all three are true:

1. Hard to reverse — the cost of changing your mind later is meaningful
2. Surprising without context — a future reader will wonder "why did they do it this way?"
3. The result of a real trade-off — there were genuine alternatives and you picked one for specific reasons

If any of the three is missing, skip the ADR. When creating a new ADR, increment the sequence number according to the Architecture Decision Records (ADRs) naming rules, and use the template in assets/adr-template.md.