# CLAUDE.md — Agent Development Foundation

This document is **THE** foundation for developing Claude agents and autonomous systems in Gravl.  
Together with the actual codebase, this is your north star.

## Part 1: Agent Development Principles

### 1. Autonomy with Verification
- Agents execute tasks independently
- **Always verify results** after delegation (no hallucinations)
- Verification pattern: `git status`, `git log`, `ls`, diff before checkpoint update
- Never report completion without checking actual work

### 2. Checkpoint-Based Self-Monitoring
All long-running tasks use checkpoint files:

```json
{
  "lastRun": "2026-03-02T08:00:00Z",
  "status": "completed|blocked|interrupted|error",
  "result": "Summary of work",
  "nextCheck": "What to do next"
}
```

**Recovery logic:**
- If `lastRun > 60min` OR `status ≠ "completed"` → trigger recovery
- Log recovery attempts to help debugging
- Use simple JSON for checkpoint files (no complex parsing)

### 3. PM (Project Manager) Autonomy
The Gravl PM agent:
- Plans sprints/phases autonomously
- Spawns specialized agents (frontend-dev, backend-dev, etc.)
- Verifies their work **before** checkpoint completion
- Reports progress to Telegram (not silent failures)
- Timeout: 15 minutes (900s) per cron cycle

### 4. Generalized Agents (Reusable)
**NEVER create project-specific agents.**

Use generalized agents instead:
- `frontend-dev` — React/CSS specialist
- `backend-dev` — Node.js/PostgreSQL specialist
- `architect` — System design
- `reviewer` — Code review + quality gates
- `browser-tester` — E2E testing + QA

These live in `~/clawd/claude-agents-skills/agents/` and symlink to `~/clawd/agents/`.

### 5. Single Source of Truth
All skills and agents in ONE central repo:
- **Hub location:** `~/clawd/claude-agents-skills/`
- **Symlinks from:** `~/clawd/skills/` and `~/clawd/agents/`
- Commit all changes to hub repo
- Enables sharing, versioning, and collaboration

### 6. Communication Pattern
- PM drives autonomously
- Silence = approval (no blocking)
- Report **only** at milestones or blocking issues
- Use Telegram for delivery (explicit `"channel: telegram"`)

---

## Part 2: Coding Conventions (MANDATORY)

### Red/Green/Refactor TDD (OBLIGATORY)

All new code follows the TDD cycle:

```
🔴 RED → 🟢 GREEN → 🔄 REFACTOR
```

#### Step 1: 🔴 RED - Write Failing Test First

```javascript
// test/feature.test.js
describe('Feature', () => {
  it('should do expected behavior', async () => {
    const result = await feature.doSomething();
    expect(result).toBe(expected);
  });
});
```

**Run the test - it MUST fail!**
```bash
npm test -- --grep "Feature"
# ❌ FAIL (this is correct!)
```

#### Step 2: 🟢 GREEN - Minimal Implementation

Write just enough code to pass the test:

```javascript
// src/feature.js
export function doSomething() {
  return expected; // Minimal solution
}
```

**Run the test again:**
```bash
npm test -- --grep "Feature"
# ✅ PASS
```

#### Step 3: 🔄 REFACTOR - Improve

Now you can:
- Refactor for clean code
- Extract functions
- Improve naming
- Remove duplication

**Run tests continuously:**
```bash
npm test
# ✅ All tests must still pass
```

### Test Structure

```
/workspace/gravl/
├── src/
│   └── components/
├── server/
│   └── routes/
└── test/
    ├── unit/           # Unit tests
    ├── integration/    # API tests
    └── e2e/            # End-to-end (Playwright)
```

### Naming Conventions

#### Test Files
- `[feature].test.js` — Unit tests
- `[feature].integration.test.js` — Integration tests
- Describe block: Noun (what is tested)
- It block: "should [verb] [expected outcome]"

#### Commits
```
test: add failing test for [feature]
feat: implement [feature] to pass tests
refactor: clean up [feature] implementation
```

### Agent Workflow (Step-by-Step)

When spawned with a coding task:

1. **Read the spec** → Check docs/current-task.md
2. **Write failing test** → Show to PM that you understand the requirement
3. **Implement code** → Make the test pass (minimal solution)
4. **Refactor** → Clean code if needed
5. **Run full test suite** → Ensure nothing broke
6. **Commit with proper prefix** → `test:`, `feat:`, `refactor:`
7. **Report to PM** → Include git log, test results
8. **Verification** → PM checks `git status`, `git log`, diffs

---

## Part 3: Operations

### Cron Jobs (3 Active)

| Job | Schedule | Timeout | Checkpoint | Status |
|-----|----------|---------|-----------|--------|
| Gravl PM | Every 30m | 15 min | `/workspace/gravl/.pm-checkpoint.json` | Active |
| Vietnam Flights | Daily 09:00 | 2 min | `~/.checkpoint-vietnam-flights.json` | Active |
| System Updates | Daily 10:00 | 5 min | `~/.checkpoint-system-updates.json` | Active |

All use explicit `"channel: telegram"` for Telegram delivery.

### Repository Structure

```
/workspace/gravl/
├── frontend/              # React app
├── backend/               # Express API
├── db/                    # Database setup + migrations
├── scripts/               # Automation scripts
├── docker/                # Compose files
├── test/                  # Test suites
├── docs/
│   └── CODING-CONVENTIONS.md  # (Deprecated, see CLAUDE.md)
├── README.md              # Project overview
├── CLAUDE.md              # THIS FILE — Agent & coding foundation
└── .gitignore             # Excludes node_modules, planning docs
```

### Local-Only Files (Not in Git)

These stay on disk but excluded via `.gitignore`:
- `.planning/` — research, requirements, roadmap
- `TODO.md` — task tracking
- `frontend/tasks/` — feature tasks
- `docs/plans/` — planning notes

This keeps the repo clean while preserving planning work locally.

---

## Part 4: Agent Development Workflow

### Adding a New Agent

1. Create in hub: `~/clawd/claude-agents-skills/agents/my-agent/`
2. Write `SOUL.md` (agent definition, personality, expertise)
3. Optional: Add `README.md`, scripts, config files
4. Symlink automatically created: `~/clawd/agents/my-agent`
5. Commit to hub repo

Example SOUL.md:
```markdown
# My Agent SOUL

## Core Identity
- Name: [Agent Name]
- Expertise: [Domain]
- Personality: [Vibe]

## Instructions
1. [Guideline 1]
2. [Guideline 2]

## Communication
- Report at milestones
- Verify before completion
```

### Adding a New Skill

1. Create in hub: `~/clawd/claude-agents-skills/skills/my-skill/`
2. Write `SKILL.md` (documentation, usage, examples)
3. Add code/scripts
4. Symlink automatically created: `~/clawd/skills/my-skill`
5. Commit to hub repo

### Verification Pattern (CRITICAL)

After any subagent completes work:

```bash
# 1. Check git status
git status

# 2. Verify files changed
git log --oneline -3

# 3. Inspect actual changes
git diff HEAD~1

# 4. ONLY THEN update checkpoint
echo '{
  "lastRun": "'$(date -Iseconds)'",
  "status": "completed",
  "result": "Summary..."
}' > checkpoint.json
```

**This prevents hallucination bugs** where agents claim work they didn't do.

---

## Key Decisions

1. **Generalized agents** — Reusable, maintainable, shareable
2. **Single hub repo** — Centralized versioning
3. **Symlinks for discovery** — OpenClaw finds everything automatically
4. **TDD mandatory** — Red → Green → Refactor
5. **Verification protocol** — No hallucinations allowed
6. **Checkpoint-based recovery** — Self-healing cron jobs
7. **Telegram delivery** — Explicit channel routing

---

## PM Agent Playbook (30-minute cycles)

1. **Plan** → Identify phase tasks, delegate to agents
2. **Execute** → Spawn agents with tasks, monitor progress
3. **Verify** → Check `git status`, diffs, test results (NO ASSUMPTIONS)
4. **Report** → Send Telegram update (success or blocking issue)
5. **Checkpoint** → Update `.pm-checkpoint.json` with status + nextCheck

PM runs autonomously every 30 minutes. **No human approval needed unless blocked.**

---

## References

- **Agent Symlink Hub:** `~/clawd/claude-agents-skills/`
- **Frontend Stack:** React + Vite + Tailwind
- **Backend Stack:** Express + PostgreSQL
- **Testing:** Jest (unit), Playwright (E2E)
- **Database:** PostgreSQL with migrations
- **Deployment:** Docker Compose (local), staging via Traefik

---

**Last Updated:** 2026-03-02  
**Version:** 1.0  
**Audience:** All Claude agents, PM, developers

> **Remember:** This document is your north star. Follow it. Extend it. Improve it.