Setup

Claude Code Setup Advisor

You are auditing the current project's Claude Code configuration. Follow these phases in order.

1. Routing

Parse $ARGUMENTS to determine scope:

• Empty or unrecognized → full audit (all 11 categories)
• quick → full audit but only show IMPROVE and MISSING items, skip GOOD
• Category name → audit only that category: claude-md, settings, hooks, skills, agents, mcp, rules, plugins, sandbox, model, styles

2. Detection

Silently scan the project. Do NOT dump raw file contents to the user.

Project stack: Read package.json, pyproject.toml, Cargo.toml, go.mod, pom.xml, Gemfile, composer.json (whichever exists). Note: language, framework, package manager.

Tools: Check for formatters (.prettierrc*, [tool.black], .rustfmt.toml, biome.json/biome.jsonc), linters (.eslintrc*, eslint.config.*, [tool.ruff], .golangci.yml, biome.json/biome.jsonc), test runners (test script in package.json, [tool.pytest], *_test.go), lockfiles.

Existing Claude config: Check for .claude/ directory, CLAUDE.md, .claude/settings.json, .claude/settings.local.json, .claude/skills/, .claude/agents/, .claude/rules/, .claude/output-styles/, .mcp.json. Check settings for enabledPlugins, sandbox, model, effortLevel, outputStyle.

Git: Check for .git/, remote origin URL (git config --get remote.origin.url), contributor count (git shortlog -sn --no-merges | wc -l).

Workflow triggers: CI/CD (.github/workflows/, .gitlab-ci.yml, Jenkinsfile), deploy (Dockerfile, docker-compose.yml, fly.toml, vercel.json, netlify.toml), monorepo (turbo.json, nx.json, pnpm-workspace.yaml, lerna.json), API (route/endpoint patterns, openapi.yaml, swagger.json), data (*.ipynb, dbt_project.yml, airflow DAGs), docs (docs/ + mkdocs.yml/docusaurus.config.js/conf.py), production indicators (auth/session deps, .env.production, Docker).

Present a brief project profile (language, framework, tools) before the scorecard.

3. Audit Checklist

Score each category: GOOD, IMPROVE, MISSING.

CLAUDE.md

1. Exists at ./CLAUDE.md or ./.claude/CLAUDE.md?
2. Under 500 lines? Uses @imports for detailed docs?
3. Has key sections: Commands (test/lint/build), Architecture, Code Style?
4. CLAUDE.md mentions context management practices? (/compact, /clear, @imports for large docs)

> Note: Claude Code's built-in /init generates a basic CLAUDE.md. /setup goes beyond /init by auditing all 11 configuration categories and /bootstrap generates production-grade config including hooks, skills, agents, and rules.

Settings

1. .claude/settings.json exists with permissions.allow for detected safe commands?
2. permissions.deny configured for dangerous operations?
3. .claude/settings.local.json exists and is in .gitignore?
4. Check for teammateMode setting if project uses agent teams

Hooks

1. PostToolUse hook for auto-formatting on Write/Edit using detected formatter?
2. Stop hook for completion notification?
3. PreToolUse hook blocking dangerous Bash commands?
4. Check for TeammateIdle and TaskCompleted hook usage for team workflows

Skills

1. .claude/skills/ directory exists with at least one skill?
2. Skills use proper SKILL.md format with frontmatter?
3. CLAUDE.md contains skill lifecycle instruction (evaluate creating/updating skills after major tasks)?

Agents

1. .claude/agents/ directory exists with custom agents?
2. Agents have tool restrictions (not inheriting all tools)?
3. Model set appropriately (sonnet for fast tasks, opus for complex)?
4. Check if any agents have team-oriented configurations (delegate mode, shared skills)

MCP

1. .mcp.json exists with configured servers?
2. All secrets use ${VAR} syntax, never hardcoded?
3. Only needed servers configured (each adds context overhead)?

Rules

1. .claude/rules/ directory exists with modular rule files?
2. Rules split by topic rather than one large file?
3. Rule files focused and under 40 lines each?

Plugins

1. Any plugins installed (enabledPlugins in settings)?
2. For typed languages (TS, Rust, Go, Java): code intelligence plugin installed?
3. Plugin marketplace configured for team sharing?

Sandboxing

1. Sandbox enabled (sandbox in settings or /sandbox used)?
2. Auto-allow mode configured for reduced permission prompts?
3. Allowed domains configured for network access?

Model Config

1. model explicitly set in settings (not relying on default)?
2. Using opusplan for plan+execute workflow or appropriate alias?
3. effortLevel configured for cost/quality balance?

Output Styles

1. .claude/output-styles/ directory exists?
2. Custom styles defined for team consistency?
3. outputStyle set in settings if using non-default style?

4. Config Reference

Use these exact formats when generating suggestions.

File Locations

• Settings: .claude/settings.json (project), .claude/settings.local.json (personal), ~/.claude/settings.json (user)
• Managed: /Library/Application Support/ClaudeCode/managed-settings.json (macOS), /etc/claude-code/managed-settings.json (Linux)
• Skills: .claude/skills//SKILL.md
• Agents: .claude/agents/.md
• Rules: .claude/rules/*.md (auto-imported, supports paths frontmatter)
• MCP: .mcp.json (project), ~/.claude.json (user)
• CLAUDE.md: ./CLAUDE.md or ./.claude/CLAUDE.md (project), ~/.claude/CLAUDE.md (user), ./CLAUDE.local.md (personal)
• Output Styles: .claude/output-styles/ (project), ~/.claude/output-styles/ (user)
• Plugins: .claude-plugin/plugin.json manifest, commands/, agents/, skills/, hooks/hooks.json, .mcp.json, .lsp.json

Settings Schema

permissions.allow/deny/ask: ["Tool", "Tool(specifier)", "Tool(glob *)", "mcp__server__tool", "Task(AgentName)"]
permissions.defaultMode: default | acceptEdits | bypassPermissions | plan | delegate | dontAsk
Evaluation order: deny > ask > allow (first match wins)
Read/Edit rules: //abs, ~/home, /relative-to-settings, ./relative-to-cwd (gitignore patterns, * single dir, ** recursive)
model: default | sonnet | opus | haiku | opusplan | sonnet[1m] (or full model name)
effortLevel: low | medium | high
fastMode: true | false
outputStyle: style-name
sandbox: { mode, network: { allowedDomains, httpProxyPort }, excludedCommands, allowUnsandboxedCommands }
Other keys: env, hooks, enabledPlugins, additionalDirectories, teammateMode, respectGitignore, language

Hook Events (all 14)

SessionStart, UserPromptSubmit, PreToolUse, PermissionRequest, PostToolUse, PostToolUseFailure, Notification, SubagentStart, SubagentStop, Stop, TeammateIdle, TaskCompleted, PreCompact, SessionEnd

Hook Config Structure

{ "EventName": [{ "matcher": "ToolName", "hooks": [{ "type": "command|prompt|agent", "command": "..." }] }] }

• Exit codes: 0=pass, 2=block (stderr fed to Claude), other=non-blocking
• Env vars: CLAUDE_TOOL_NAME, CLAUDE_TOOL_INPUT, CLAUDE_TOOL_INPUT_PATH, CLAUDE_TOOL_OUTPUT, CLAUDE_SESSION_ID, CLAUDE_PROJECT_DIR

Frontmatter Quick Reference

• SKILL.md: name, description, argument-hint, allowed-tools, model, context (fork), agent, hooks, disable-model-invocation, user-invocable
• Agent: name (req), description (req), tools, disallowedTools, model, permissionMode, maxTurns, skills, mcpServers, hooks, memory (user/project/local)
• Output Style: name, description, keep-coding-instructions (default false)

MCP Config

{ "mcpServers": { "name": { "type": "stdio|sse|http", "command": "...", "args": [...], "env": { "KEY": "${VAR}" } } } }

Common servers: GitHub (npx -y @modelcontextprotocol/server-github), Filesystem, PostgreSQL, Slack.

5. Report — Progressive Disclosure

Scoring System

Calculate a weighted 0–10 grade. Weights (total=10): CLAUDE.md/Settings/Hooks: 1.5 each (HIGH), Skills/Rules: 1.0 each (MEDIUM), Agents/MCP/Plugins/Sandboxing/Model/Styles: 0.5 each (LOW). Per category: GOOD=100%, IMPROVE=50%, MISSING=0% of weight. Grade labels:

• 9–10: "Excellent — power-user setup"
• 7–8: "Good — solid foundation, room to optimize"
• 5–6: "Fair — core pieces in place, key gaps remain"
• 3–4: "Basic — significant gaps affecting productivity"
• 0–2: "Fresh start — high-impact improvements available"

Example: 2 GOOD HIGH (1.5×2=3.0) + 1 IMPROVE HIGH (1.5×0.5=0.75) + 2 GOOD MEDIUM (1.0×2=2.0) + 6 MISSING LOW (0.5×0=0) = 5.75 → "Fair" Calculate the exact score BEFORE writing the banner. Never revise mid-output.

Output Template

Before generating any output, read OUTPUT-FORMAT.md from this skill's directory. It contains the exact template for health banner, scorecard, suggestions, and interactive prompt. Reproduce that format exactly — all 11 scorecard rows, emoji status indicators, box-drawing borders, impact-sorted suggestions with "Why" lines.

Layer 3: Details (on request only)

When the user asks for details, show the full config snippet for that suggestion.

When the user wants to apply changes, tell them to run /bootstrap — this skill is read-only and cannot write files. /bootstrap has full write access and will generate the configuration this audit recommends.

Layer 4: Handoff Block (always include)

After the interactive prompt, emit the handoff block defined in OUTPUT-FORMAT.md. This compact summary lets /bootstrap focus on the gaps this audit identified. Always include it — it costs nothing and enables the setup → bootstrap flow.

6. Tailored Suggestion Examples

Use detected stack to generate project-specific suggestions:

• Hooks: Detected Prettier → prettier --write "$CLAUDE_TOOL_INPUT_PATH". Detected Black → black "$CLAUDE_TOOL_INPUT_PATH" 2>/dev/null || true. Always suggest Stop notification and PreToolUse dangerous command blocker.
• Skills: Always fix-issue + code-review. React/Vue → create-component. Django/Rails/Prisma → migrate. Always suggest skill lifecycle instruction in CLAUDE.md if missing.
• Agents: Always code-reviewer (sonnet) + test-writer (sonnet). Production app → security-auditor (opus).
• MCP: GitHub remote → GitHub server. PostgreSQL/MySQL in deps → database server.
• Settings: Detected test/lint/build → permissions.allow. Standard deny rules for rm -rf, DROP, --force.
• Plugins: Typed language → code intelligence plugin. Team project → suggest creating a plugin marketplace.
• Sandbox: Any project → suggest enabling for reduced prompts. CI/CD → suggest auto-allow mode.
• Model: Complex project → suggest opusplan. Cost-sensitive → suggest effortLevel: medium.

7. Workflow Suggestions

Match detected project characteristics to workflows. Present 1-3 most relevant, numbered after individual suggestions:

• GitHub Issue → PR: GitHub remote + gh → /fix-issue skill + GitHub MCP + auto-format hook
• TDD Loop: Test framework → /test-first skill + test-writer agent + test-on-save hook
• Database Migration: Django/Rails/Prisma → /migrate skill + DB MCP + safety deny rules
• Component Factory: React/Vue/Svelte → /create-component skill
• Code Review: Multiple contributors → /code-review skill + reviewer agent (sonnet)
• CI/CD: .github/workflows/ → headless mode tips + --allowedTools patterns
• Deploy: Dockerfile/fly.toml/vercel.json → /deploy skill + pre-deploy test hook
• Security-First: Auth deps + Docker → security-auditor agent (opus) + deny rules for secrets
• Agent Team Workflow: Multiple agents + teammateMode → teammateMode setting + team-oriented agents + delegate mode

Output in Layer 2: 6. [Workflow · MEDIUM] GitHub Issue → PR: end-to-end issue fixing. Details on request (Layer 3).

8. Edge Cases

• Fresh project (no .claude/): Grade 0–2. Banner: "Fresh start". Focus on CLAUDE.md, auto-format hook, permissions.
• Everything GOOD: "Your setup looks solid!" Suggest power-user tweaks (agent teams, sandbox, opusplan).
• Monorepo: Scope detection to current working directory.
• Existing config: When showing details, ALWAYS display the full snippet. Direct users to /bootstrap to apply.
• Minimize context: Analyze internally. Only present scorecard + suggestions, not raw detection output.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: paulo-yamagishi
• Source: paulo-yamagishi/claude-code-setup
• License: MIT

Install and usage instructions live in the source repository linked above.