Ralph Autonomous Loop Skill

Purpose: Automate iterative feature implementation using Ralph's autonomous agent loop pattern.

Installation

Ralph is installed as part of @hivehub/rulebook:

npm install -g @hivehub/rulebook
# or
npx @hivehub/rulebook init

Quick Start

Step 1: Initialize Ralph for Your Project

# Create task specifications in .rulebook/tasks/
rulebook task create my-feature

# Initialize Ralph
rulebook ralph init

# This creates:
# - .rulebook-ralph/prd.json (task specifications in PRD format)
# - .rulebook-ralph/progress.txt (learning log across iterations)
# - .rulebook-ralph/history/ (per-iteration metadata)

Step 2: Run Autonomous Loop

# Run with default settings
rulebook ralph run

# Or with custom iterations and tool
rulebook ralph run --max-iterations 10 --tool claude

Step 3: Monitor Progress

# Check current status
rulebook ralph status

# View iteration history
rulebook ralph history

# See learnings discovered
rulebook ralph history --learnings

Understanding the Ralph Loop

Loop Workflow

1. Pick highest-priority incomplete task from PRD
2. Execute AI agent (Claude Code, Cursor, or Gemini)
   - Provide full PRD context
   - Include progress.txt (learnings from past iterations)
   - Include git history (recent commits)
3. Run quality gates (type-check, lint, tests)
4. If success:
   - Commit changes with iteration metadata
   - Update task status to completed
   - Record learnings to progress.txt
5. If failure:
   - Mark task as blocked
   - Record error and blockers to progress.txt
6. Repeat until all tasks completed or max iterations reached

Fresh Context Per Iteration

Each iteration starts fresh:

• New AI agent instance (clean context)
• Memory persists through: git commits, PRD.json, progress.txt
• AI agent reads past learnings to avoid repeating mistakes

This pattern prevents "context degradation" where AI agent loses track of architectural decisions across many iterations.

Configuration

.rulebook Configuration

{
  "ralph": {
    "enabled": false,
    "maxIterations": 10,
    "tool": "claude",
    "maxContextLoss": 3
  }
}

Options:

• enabled: Enable Ralph autonomous loop (default: false)
• maxIterations: Max iterations before stopping (default: 10)
• tool: AI CLI tool to use (default: "claude")
  • "claude" — Claude Code CLI
  • "amp" — Amp CLI (for Cursor)
  • "gemini" — Gemini CLI
• maxContextLoss: Tolerance for incomplete agent outputs (default: 3)

PRD Format (.rulebook-ralph/prd.json)

{
  "tasks": [
    {
      "id": "task-id",
      "title": "Task Title",
      "description": "What needs to be done",
      "priority": 1,
      "status": "pending",
      "acceptanceCriteria": [
        "Criterion 1",
        "Criterion 2"
      ],
      "estimatedComplexity": "medium"
    }
  ]
}

Progress Log (.rulebook-ralph/progress.txt)

Append-only learning log:

=== Iteration 1 ===
Task: implement-auth
Tool: Claude Code
Result: SUCCESS
Learnings:
- Discovered OAuth token refresh pattern (30-min expiry)
- Gotcha: Tokens expire silently, need header check before retry
- Pattern: Use interceptor middleware for transparent refresh

=== Iteration 2 ===
Task: add-caching
Tool: Claude Code
Result: FAILED - Tests failed
Error: Cache invalidation not handling concurrent updates
Blockers: Need to implement distributed cache locking

Usage Patterns

Pattern 1: Progressive Feature Implementation

Break large features into tasks:

# Create tasks for phases
rulebook task create setup-database
rulebook task create create-api-endpoints
rulebook task create add-authentication
rulebook task create write-tests

# Initialize Ralph
rulebook ralph init

# Run autonomous loop — implements all tasks iteratively
rulebook ralph run --max-iterations 20

Pattern 2: Learning Across Iterations

Ralph learns from past iterations:

1. Iteration 1: Implements feature A, discovers pattern X
2. Progress.txt updated: Records pattern X
3. Iteration 2: Reads progress.txt, applies pattern X to feature B
4. Iteration 3+: Builds on discovered patterns

Pattern 3: Pause and Resume

Stop loop gracefully and resume later:

# Start autonomous loop
rulebook ralph run --max-iterations 100

# (User presses Ctrl+C)
# Loop pauses, state saved

# Resume later
rulebook ralph resume

# Continues from last incomplete task with full history

Quality Gates

Ralph enforces quality checks after each iteration:

# After each implementation, Ralph runs:
npm run type-check    # TypeScript compilation
npm run lint          # ESLint (0 warnings)
npm run test          # All tests (100% pass)
npm run test:coverage # Coverage threshold met (95%)

If ANY gate fails:

• Task marked as blocked with error details
• Error recorded to progress.txt
• Loop continues to next task (unless --strict mode)

MCP Integration

Use Ralph via Model Context Protocol:

// Initialize Ralph
rulebook_ralph_init({ force: false })
  → Returns: { success: true, taskCount: 5, prdPath: "..." }

// Start autonomous loop
rulebook_ralph_run({ maxIterations: 10, tool: "claude" })
  → Returns: { success: true, loopId: "loop-123", status: "running" }

// Query loop status
rulebook_ralph_status()
  → Returns: { loopStatus: "running", iteration: 5, currentTask: "task-id", ... }

// Get iteration history
rulebook_ralph_get_iteration_history({ limit: 10 })
  → Returns: { iterations: [...], total: 12 }

Best Practices

DO ✅

• Break features into right-sized tasks: 1-2 context windows each
• Write clear acceptance criteria: AI uses these to validate completion
• Monitor iteration history: Review learnings and errors
• Run manual testing: Ralph is automated but human review is important
• Commit frequently: Each iteration commits, creating audit trail
• Use meaningful task IDs: Descriptive names help AI understand context

DON'T ❌

• Don't create huge tasks: "Build entire backend" won't fit in one iteration
• Don't skip acceptance criteria: AI needs clear completion signals
• Don't ignore blocked tasks: Review errors and adjust task sizing
• Don't run without version control: You need git history for learning
• Don't disable quality gates: Tests catch failures early

Troubleshooting

Loop Stops Early

Problem: Ralph stops before reaching max iterations Cause: All tasks completed (success!) or multiple blockers Solution: Check rulebook ralph history for blockers

Same Task Keeps Failing

Problem: Task marked blocked multiple times Cause: Task too large, acceptance criteria unclear, or AI context insufficient Solution:

1. Break task into smaller subtasks
2. Clarify acceptance criteria
3. Add examples to task spec

Quality Gates Failing

Problem: Type-check, lint, or tests fail after implementation Cause: AI-generated code doesn't meet project standards Solution:

1. Review error details in progress.txt
2. Update AGENTS.md with clearer standards
3. Provide more examples in task specs

Next Steps

1. Create tasks: rulebook task create <task-id> (multiple times)
2. Initialize Ralph: rulebook ralph init
3. Run loop: rulebook ralph run --max-iterations N
4. Monitor: rulebook ralph status and rulebook ralph history
5. Review: Check generated code and learnings
6. Deploy: Code is committed and ready

References

• Ralph Pattern: https://github.com/snarktank/ralph
• Task Management: See RULEBOOK.md in AGENTS.md
• Rulebook CLI: rulebook --help
• MCP Server: rulebook-mcp (stdio transport)