open-ralph

Run an autonomous Open Ralph Wiggum coding loop using OpenCode Zen with free models and automatic fallback.

Install

openclaw skills install @bderiel/open-ralph

What this skill does

This skill runs an autonomous Ralph Wiggum coding loop using the ralph CLI with OpenCode as the agent provider.

It repeatedly executes the same coding prompt until:

The success criteria are met, OR
The completion promise is printed, OR
Max iterations are reached

The loop is optimized for free OpenCode Zen models and includes a fallback chain in case models are rate-limited, disabled, or removed.

When to use

Use this skill when you want autonomous coding execution such as:

Fixing failing tests
Implementing scoped features
Refactoring codebases
Resolving lint/type errors
Running build-fix loops
Multi-iteration debugging

You MUST be inside a git repository before running Ralph.

Free model fallback order

Always attempt models in this order:

opencode/kimi-k2.5-free ← Best coding performance (limited time free)
opencode/minimax-m2.1-free
opencode/glm-4.7-free
opencode/big-pickle ← Free stealth model fallback

If a model fails due to availability or quota, immediately retry using the next model without changing the prompt or loop parameters.

Failure triggers for fallback

Fallback if you encounter errors like:

model disabled
model not found
insufficient quota
quota exceeded
payment required
rate limit
provider unavailable

How to run the loop

Attempt #1 (primary model)

Run:

ralph "

Success criteria:

Build passes
Tests pass

Completion promise: COMPLETE"
--agent opencode
--model opencode/kimi-k2.5-free
--completion-promise "COMPLETE"
--max-iterations 20

Attempt #2 (fallback)

If attempt #1 fails due to model issues, rerun with:

--model opencode/minimax-m2.1-free

Attempt #3 (fallback)

If attempt #2 fails:

--model opencode/glm-4.7-free

Attempt #4 (final fallback)

If attempt #3 fails:

--model opencode/big-pickle

Tasks mode (for large projects)

For multi-step execution:

ralph ""
--agent opencode
--model opencode/kimi-k2.5-free
--tasks
--max-iterations 50

Fallback model order still applies.

Plugin troubleshooting

If OpenCode plugins interfere with loop execution, rerun with:

--no-plugins

Sanity check available Zen models

If free model availability changes, check:

https://opencode.ai/zen/v1/models

Update fallback order if needed.

Safety notes

Always run inside a git repo
Set iteration limits to avoid runaway loops
Ensure prompts contain verifiable success criteria
Review diffs before merging autonomous changes

Example usage

Fix failing TypeScript errors:

ralph "Fix all TypeScript errors in the repo.