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/ralph-external

Crash-resilient external loop with state persistence and CI/CD integration

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aiwg
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Install
$ npx -y skills add jmagly/aiwg --skill ralph-external --agent claude-code

How it fires

How this skill gets triggered: by you, by Claude, or both.

  • Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
  • You can call itInvoke it directly when you want it.
  • Slash command/ralph-external

Context preview

The summary Claude sees to decide when to auto-load this skill.

Crash-resilient external loop with state persistence and CI/CD integration

SKILL.md

ralph-external.SKILL.md
namespace: aiwg
name: ralph-external
platforms: [all]
description: Crash-resilient external loop with state persistence and CI/CD integration
commandHint:
  argumentHint: "\"<objective>\" --completion \"<criteria>\" [--max-iterations N] [--timeout M] [--provider <p>] [--no-commit] [--branch <name>] [--quiet]"
  allowedTools: Bash, Read, Write
  model: haiku
  category: automation
  orchestration: true
  platforms: [claude-code, hermes, openclaw]
  modelRole: efficiency
  modelTier: economy

<!-- AIWG-SKILL-CALLOUT --> > **Skill access pattern (post-kernel-pivot, 2026.5+)** > > Skill names referenced in this document are AIWG skills, **not slash commands**. Most are not kernel-listed and cannot be invoked as `/skill-name` by the platform. Reach them via: > > ```bash > aiwg discover "<capability>" > aiwg show skill <name> > ``` > > Only kernel-listed skills (`aiwg-doctor`, `aiwg-refresh`, `aiwg-status`, `aiwg-help`, `use`, `steward`) are directly invokable as slash commands. See [skill-discovery rule](../../../addons/aiwg-utils/rules/skill-discovery.md).

Al External

**You are the Al External Orchestrator** — launching and managing crash-resilient iterative loops that run outside the AI session for long-running tasks.

Core Difference from `ralph`

`ralph` runs the loop inside the current AI session. `ralph-external` launches the loop as an external process via `tools/ralph-external/run.sh`, persisting all state to `.aiwg/ralph-external/`. If the session dies mid-loop, the loop survives and can be reattached or resumed.

Use `ralph-external` when:

  • The task will take longer than a single session
  • You need CI/CD pipeline integration
  • You want crash recovery guarantees
  • You need to run multiple loops in parallel

Natural Language Triggers

Users may say:

  • "ralph external"
  • "external ralph"
  • "crash-resilient loop"
  • "persistent ralph"
  • "long-running ralph task"
  • "ralph with crash recovery"
  • "start background ralph"

Parameters

Objective (required)

The task the loop should accomplish. Passed as the first positional argument.

--completion (required)

Success criteria as a verifiable command. The loop exits when this command returns exit code 0.

**Good examples**:

  • `--completion "npm test passes with 0 failures"`
  • `--completion "npx tsc --noEmit exits with code 0"`
  • `--completion "coverage report shows >80%"`

--max-iterations (default: 10)

Maximum iterations before the loop halts and saves state for manual review.

--timeout (default: 60 minutes)

Maximum wall-clock time. Loop checkpoints state before exiting so it can be resumed.

--provider (default: claude)

AI provider to use for loop iterations. Supported: `claude`, `codex`, `factory`, `opencode`.

--no-commit

Skip automatic git commits after each iteration.

--branch (optional)

Create and work on a dedicated feature branch. The branch is created before iteration 1.

--quiet

Suppress verbose progress output. Completion banner is always shown.

Behavior

When triggered:

1. Validate that `--completion` criteria are specified and verifiable 2. Check for an existing `.aiwg/ralph-external/` workspace; create if absent 3. Generate a unique `loop-id` (8-character hex) and create the loop state file at `.aiwg/ralph-external/loops/<loop-id>.json` 4. Write the initial state: `{ objective, completionCriteria, maxIterations, timeout, provider, status: "pending", iteration: 0 }` 5. If `--branch` is specified, create the git branch now 6. Invoke `tools/ralph-external/run.sh` with all parsed flags, passing the loop-id 7. The external process owns execution from this point. Print the loop-id and attach info:

Al External Loop Started

Loop ID: abc123
Objective: {objective}
Completion: {completion}
Max iterations: {max} | Timeout: {timeout}m | Provider: {provider}

Loop is running externally. Follow progress:
  /ralph-attach --loop-id abc123

Check status:
  /ralph-status

State: .aiwg/ralph-external/loops/abc123.json
Log:   .aiwg/ralph-external/logs/abc123.log

8. If `--quiet` is NOT set, automatically attach to the loop's output stream (equivalent to running `/ralph-attach --loop-id <id>`)

State Persistence and Crash Recovery

State is written to disk before each external process action. If the process crashes:

  • The loop state file retains the last known iteration and learnings
  • On restart, `tools/ralph-external/run.sh` detects the incomplete state and resumes from the last checkpoint
  • Learnings from completed iterations are injected into the next iteration's prompt via the memory layer

**State file schema** (`.aiwg/ralph-external/loops/<id>.json`):

{
  "loopId": "abc123",
  "objective": "Fix all auth tests",
  "completionCriteria": "npm test passes with 0 failures",
  "maxIterations": 10,
  "timeout": 60,
  "provider": "claude",
  "status": "running",
  "iteration": 3,
  "startedAt": "2026-04-01T10:30:00Z",
  "lastCheckpoint": "2026-04-01T10:38:42Z",
  "logFile": ".aiwg/ralph-external/logs/abc123.log",
  "branch": null,
  "learnings": ["auth mocks must be initialized before describe block"]
}

CI/CD Integration

For use in pipelines, pass `--quiet` and read the exit code:

  • `0` — loop completed successfully (completion criteria verified)
  • `1` — loop failed (max iterations or timeout reached)
  • `2` — configuration error (bad arguments)

**GitHub Actions example**:

- name: Auto-fix tests
  run: |
    aiwg ralph-external "Fix all failing unit tests" \
      --completion "npm test passes" \
      --max-iterations 5 \
      --timeout 30 \
      --quiet

Error Handling

**Missing --completion**:

Error: --completion is required for /ralph-external.

Provide a verifiable success criterion:
  /ralph-external "Fix tests" --completion "npm test passes"

**External process launch failure**:

Failed to launch external Al process.

Check:
1. tools/ralph-external/run.sh is executable
2. Node.js >= 18 is available
3. .aiwg/ directory is writa
Read more
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