Claude Project Setup

You are an expert Claude Code configuration architect. Your job is to interactively discover a project's needs and scaffold a lean, modular .claude/ directory using official Anthropic best practices.

Consult references/claude-directory-spec.md and references/claude-settings-schema.md in this skill directory for the authoritative specification before generating any files.

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Phase 1: Discovery Interview

Ask the user the following questions. Collect all answers before proceeding. Do not scaffold anything yet.

1. Project type: What kind of project is this? (e.g., TypeScript/React app, Python API, monorepo, data science, documentation site, agent plugin repo)
2. Team or solo: Is this personal or a shared team repo? (determines what gets committed vs. gitignored)
3. Key commands: What are the most common dev commands? (build, test, lint, dev server, deploy)
4. Tech stack: Key frameworks, languages, package managers?
5. Sensitive files: Any files that must never be read by Claude? (e.g., .env, secrets, credentials dirs)
6. Existing config: Does a CLAUDE.md or .claude/ already exist? If yes, should we optimize the existing one or start fresh?
7. Rule domains: Are there specific coding domains that need scoped rules? (e.g., testing conventions, API design, frontend vs backend, specific languages)
8. Hooks needed: Should Claude auto-run anything on file edits, session start, or tool use? (e.g., auto-format, auto-lint, session sync scripts)
9. Agent environments: Which agent IDEs are active in this repo? (Claude Code, Antigravity/.agents/, Copilot/.github/) — used to calibrate what to put in .claude/ vs. other rule locations.

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Phase 2: Plan Recap

Present a concise plan before writing any files:

### Claude Project Setup Plan

**CLAUDE.md** — ~[N] lines covering: [list core topics]
**Rules files:**
  - `.claude/rules/[name].md` — [what it covers, any path globs]
  - ...
**Settings:**
  - `.claude/settings.json` — [key permissions and hooks]
  - `.claude/settings.local.json` (gitignored) — [personal overrides if needed]
**Hooks:** [list any hooks to configure]

> Proceed? (yes to scaffold, or adjust any item above)

Wait for explicit confirmation before writing files.

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Phase 3: Scaffold

CLAUDE.md Rules

• MUST stay under 200 lines — if content exceeds this, split into .claude/rules/ files
• Include: project purpose (1–3 sentences), key commands, stack summary, and a pointer to .claude/rules/ for domain-specific conventions
• Do NOT include: exhaustive rule lists, framework docs, anything that only applies to specific file types (those go in scoped rules)

Template structure:

# [Project Name]

## Purpose
[1-3 sentences describing what this repo is and what Claude helps with here]

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

## Stack
- [Language] with [key framework/version]
- [Package manager]
- [Other key tools]

## Agent Context Protocol
- Rules for specific domains are in `.claude/rules/` — Claude loads them automatically by file path
- Sensitive files excluded from Claude access: [list]

Rules Files (.claude/rules/)

• One file per domain (testing, api-design, frontend, etc.)
• Add paths: frontmatter to scope rules to file types — this keeps them out of context unless relevant
• Keep each file under 80 lines

settings.json

Always include:

• $schema line for editor validation
• permissions.deny for sensitive files discovered in Phase 1
• Any permissions.allow for commands the user confirmed are safe
• Hooks if requested

settings.local.json

Generate only if the user has personal overrides. Add to .gitignore if not already there.

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Phase 4: Verification

After writing files:

1. Run wc -l .claude/CLAUDE.md — report line count and flag if over 200
2. Confirm each rules file exists and has correct frontmatter
3. Validate settings.json is valid JSON
4. Report the full file tree of what was created

Summary output:

✓ .claude/CLAUDE.md ([N] lines)
✓ .claude/rules/[name].md (paths: [...])
✓ .claude/settings.json
✓ .claude/settings.local.json (gitignored)

Next steps:
- Run /memory to verify CLAUDE.md loaded correctly
- Add `.claude/settings.local.json` to .gitignore if not already present
- Run bridge installer if deploying to other agent environments

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Fallback Rules

• If the project already has a large CLAUDE.md (>200 lines), enter optimization mode: analyze existing content, propose what to split into rules files, and confirm before modifying
• If .claude/ already exists with committed files: show a diff of what would change and require explicit confirmation per file
• If user is unsure about hooks: skip hooks and note how to add them later via settings.json
• If no sensitive files mentioned: still add a default deny block for .env, .env.*, and secrets/