SDF Setup — Project Constitution

Initialize foundational artifacts: .claude/CLAUDE.md and LessonsLearned.md.

Process

Step 1: Analyze the codebase

Examine: stack, framework, bundler, runtime, code patterns, test framework, linters/formatters, folder structure, package scripts.

If the project is empty, ask for preferences.

Step 2: Generate .claude/CLAUDE.md

Keep under 60 lines. Do NOT include what linters already enforce.

# Project Constitution

## Stack
- [detected]
- Prohibited: [what NOT to use]

## Tech Decisions
- [e.g., Data fetching: TanStack Query, never fetch + useEffect]

## Code Conventions
- [extracted from codebase]

## Quality Standards
- [from linter/formatter configs]

## Prohibited Actions
- Never install new dependencies without explicit approval

## Folder Structure
- [mapped from project]

## Commands
- Build: [cmd]
- Test: [cmd]
- Lint: [cmd]

Step 3: Generate LessonsLearned.md

# Lessons Learned
<!-- Format: LL-XXX: Title | Context | Rule | Date -->

Step 4: Confirm

Present output and ask (in the user's preferred language):

• If any important convention is missing
• If there are any specific prohibitions

Rules

• Detect patterns from REAL codebase, never assume defaults
• Always communicate in the user's preferred language