domain-extract

Domain Extract

Analyze existing project sources to propose domain knowledge rules for approval.

Dispatch

Based on $ARGUMENTS after "domain":

• domain extract → Step 1-5 (full extraction)
• domain list → Step 6 (list only)
• domain sync-vault → Step 7 (vault sync only)

---

Step 1: Gather sources

Read these project sources (skip any that don't exist):

1. CLAUDE.md — sections below <!-- forge:custom --> (user-written content)
2. Auto-memory — resolve the project's memory directory:
   • Compute project path hash: the memory lives in ~/.claude/projects/-<path-with-dashes>/memory/
   • Read MEMORY.md index, then read each linked memory file
   • Filter: keep only entries with business/domain content (not purely technical)
3. CLAUDE_ERRORS.md — read all entries. Flag errors where the root cause is "Claude didn't know X about the business"
4. Agent memory — read .claude/agent-memory/implementer/*.md and .claude/agent-memory/architect/*.md
   • Filter: keep domain-relevant learnings (business logic, API behavior, deployment procedures)
5. Existing rules — read all .claude/rules/*.md. Identify files that mix domain + technical content
6. Git log — run git log --oneline -50 to identify domain-related commits (keywords: fix, deploy, API, auth, config)

Step 2: Classify findings

For each piece of domain knowledge found, classify:

• Category: deploy, api-integration, business-logic, data-model, auth-flow, external-service, workflow
• Source: which file(s) it came from
• Confidence: high (explicit in CLAUDE.md/rules), medium (in memory/errors), low (inferred from git)
• Overlap: does it duplicate existing .claude/rules/domain/*.md content?

Discard:

• Pure technical patterns (import order, test fixtures, lint rules)
• Already covered by existing domain rules
• One-time fixes that won't recur

Step 3: Generate proposals

Group findings by category. For each group, propose a domain rule file:

═══ DOMAIN EXTRACT ═══
Project: {{project_name}}
Sources analyzed: {{count}}
Existing domain rules: {{count in .claude/rules/domain/}}

── PROPOSED DOMAIN RULES ──

{{number}}. {{filename}}.md (from: {{sources}})
   globs: {{suggested glob patterns}}
   Content preview:
     "{{3-5 line summary of what the rule will contain}}"
   → Create? (y/n/edit)