Add ECC configuration for Claude Code

AGENTS.md

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+# Everything Claude Code (ECC) — Agent Instructions
+
+This is a **production-ready AI coding plugin** providing 27 specialized agents, 109 skills, 57 commands, and automated hook workflows for software development.
+
+**Version:** 1.9.0
+
+## Core Principles
+
+1. **Agent-First** — Delegate to specialized agents for domain tasks
+2. **Test-Driven** — Write tests before implementation, 80%+ coverage required
+3. **Security-First** — Never compromise on security; validate all inputs
+4. **Immutability** — Always create new objects, never mutate existing ones
+5. **Plan Before Execute** — Plan complex features before writing code
+
+## Available Agents
+
+| Agent | Purpose | When to Use |
+|-------|---------|-------------|
+| planner | Implementation planning | Complex features, refactoring |
+| architect | System design and scalability | Architectural decisions |
+| tdd-guide | Test-driven development | New features, bug fixes |
+| code-reviewer | Code quality and maintainability | After writing/modifying code |
+| security-reviewer | Vulnerability detection | Before commits, sensitive code |
+| build-error-resolver | Fix build/type errors | When build fails |
+| e2e-runner | End-to-end Playwright testing | Critical user flows |
+| refactor-cleaner | Dead code cleanup | Code maintenance |
+| doc-updater | Documentation and codemaps | Updating docs |
+| docs-lookup | Documentation and API reference research | Library/API documentation questions |
+| cpp-reviewer | C++ code review | C++ projects |
+| cpp-build-resolver | C++ build errors | C++ build failures |
+| go-reviewer | Go code review | Go projects |
+| go-build-resolver | Go build errors | Go build failures |
+| kotlin-reviewer | Kotlin code review | Kotlin/Android/KMP projects |
+| kotlin-build-resolver | Kotlin/Gradle build errors | Kotlin build failures |
+| database-reviewer | PostgreSQL/Supabase specialist | Schema design, query optimization |
+| python-reviewer | Python code review | Python projects |
+| java-reviewer | Java and Spring Boot code review | Java/Spring Boot projects |
+| java-build-resolver | Java/Maven/Gradle build errors | Java build failures |
+| chief-of-staff | Communication triage and drafts | Multi-channel email, Slack, LINE, Messenger |
+| loop-operator | Autonomous loop execution | Run loops safely, monitor stalls, intervene |
+| harness-optimizer | Harness config tuning | Reliability, cost, throughput |
+| rust-reviewer | Rust code review | Rust projects |
+| rust-build-resolver | Rust build errors | Rust build failures |
+| pytorch-build-resolver | PyTorch runtime/CUDA/training errors | PyTorch build/training failures |
+| typescript-reviewer | TypeScript/JavaScript code review | TypeScript/JavaScript projects |
+
+## Agent Orchestration
+
+Use agents proactively without user prompt:
+- Complex feature requests → **planner**
+- Code just written/modified → **code-reviewer**
+- Bug fix or new feature → **tdd-guide**
+- Architectural decision → **architect**
+- Security-sensitive code → **security-reviewer**
+- Multi-channel communication triage → **chief-of-staff**
+- Autonomous loops / loop monitoring → **loop-operator**
+- Harness config reliability and cost → **harness-optimizer**
+
+Use parallel execution for independent operations — launch multiple agents simultaneously.
+
+## Security Guidelines
+
+**Before ANY commit:**
+- No hardcoded secrets (API keys, passwords, tokens)
+- All user inputs validated
+- SQL injection prevention (parameterized queries)
+- XSS prevention (sanitized HTML)
+- CSRF protection enabled
+- Authentication/authorization verified
+- Rate limiting on all endpoints
+- Error messages don't leak sensitive data
+
+**Secret management:** NEVER hardcode secrets. Use environment variables or a secret manager. Validate required secrets at startup. Rotate any exposed secrets immediately.
+
+**If security issue found:** STOP → use security-reviewer agent → fix CRITICAL issues → rotate exposed secrets → review codebase for similar issues.
+
+## Coding Style
+
+**Immutability (CRITICAL):** Always create new objects, never mutate. Return new copies with changes applied.
+
+**File organization:** Many small files over few large ones. 200-400 lines typical, 800 max. Organize by feature/domain, not by type. High cohesion, low coupling.
+
+**Error handling:** Handle errors at every level. Provide user-friendly messages in UI code. Log detailed context server-side. Never silently swallow errors.
+
+**Input validation:** Validate all user input at system boundaries. Use schema-based validation. Fail fast with clear messages. Never trust external data.
+
+**Code quality checklist:**
+- Functions small (<50 lines), files focused (<800 lines)
+- No deep nesting (>4 levels)
+- Proper error handling, no hardcoded values
+- Readable, well-named identifiers
+
+## Testing Requirements
+
+**Minimum coverage: 80%**
+
+Test types (all required):
+1. **Unit tests** — Individual functions, utilities, components
+2. **Integration tests** — API endpoints, database operations
+3. **E2E tests** — Critical user flows
+
+**TDD workflow (mandatory):**
+1. Write test first (RED) — test should FAIL
+2. Write minimal implementation (GREEN) — test should PASS
+3. Refactor (IMPROVE) — verify coverage 80%+
+
+Troubleshoot failures: check test isolation → verify mocks → fix implementation (not tests, unless tests are wrong).
+
+## Development Workflow
+
+1. **Plan** — Use planner agent, identify dependencies and risks, break into phases
+2. **TDD** — Use tdd-guide agent, write tests first, implement, refactor
+3. **Review** — Use code-reviewer agent immediately, address CRITICAL/HIGH issues
+4. **Capture knowledge in the right place**
+   - Personal debugging notes, preferences, and temporary context → auto memory
+   - Team/project knowledge (architecture decisions, API changes, runbooks) → the project's existing docs structure
+   - If the current task already produces the relevant docs or code comments, do not duplicate the same information elsewhere
+   - If there is no obvious project doc location, ask before creating a new top-level file
+5. **Commit** — Conventional commits format, comprehensive PR summaries
+
+## Git Workflow
+
+**Commit format:** `<type>: <description>` — Types: feat, fix, refactor, docs, test, chore, perf, ci
+
+**PR workflow:** Analyze full commit history → draft comprehensive summary → include test plan → push with `-u` flag.
+
+## Architecture Patterns
+
+**API response format:** Consistent envelope with success indicator, data payload, error message, and pagination metadata.
+
+**Repository pattern:** Encapsulate data access behind standard interface (findAll, findById, create, update, delete). Business logic depends on abstract interface, not storage mechanism.
+
+**Skeleton projects:** Search for battle-tested templates, evaluate with parallel agents (security, extensibility, relevance), clone best match, iterate within proven structure.
+
+## Performance
+
+**Context management:** Avoid last 20% of context window for large refactoring and multi-file features. Lower-sensitivity tasks (single edits, docs, simple fixes) tolerate higher utilization.
+
+**Build troubleshooting:** Use build-error-resolver agent → analyze errors → fix incrementally → verify after each fix.
+
+## Project Structure
+
+```
+agents/          — 27 specialized subagents
+skills/          — 109 workflow skills and domain knowledge
+commands/        — 57 slash commands
+hooks/           — Trigger-based automations
+rules/           — Always-follow guidelines (common + per-language)
+scripts/         — Cross-platform Node.js utilities
+mcp-configs/     — 14 MCP server configurations
+tests/           — Test suite
+```
+
+## Success Metrics
+
+- All tests pass with 80%+ coverage
+- No security vulnerabilities
+- Code is readable and maintainable
+- Performance is acceptable
+- User requirements are met