# Crack Panel

Work with the opt-in codex-on-crack build panel.

- Repository: https://github.com/ethanplusai/codex-on-crack (784 stars)
- Category: Engineering
- License: MIT
- Last updated: 2026-10-03
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add ethanplusai/codex-on-crack --skill crack-panel -g -a claude-code -y`
Codex: `npx skills add ethanplusai/codex-on-crack --skill crack-panel -g -a codex -y`
Cursor: `npx skills add ethanplusai/codex-on-crack --skill crack-panel -g -a cursor -y`
Gemini CLI: `npx skills add ethanplusai/codex-on-crack --skill crack-panel -g -a gemini-cli -y`

## Description

Work with the opt-in codex-on-crack build panel. Report registered run and review status, submit new screenshot evidence for a registered review, and send the user to the panel to decide. Never record user feedback or visual approval yourself.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Build panel

The panel shows registered codex-on-crack runs: phases, agents, activity,
recorded usage, routes (configured versus verified), and visual reviews. The
user opens it from the sidebar or a thread tab (**Codex on Crack**), or in a browser through the localhost fallback.

## Open the embedded view first

When the user asks to open or see the panel, call `crack_panel`. This is the
MCP App surface, not a localhost browser tab. Do not start a browser server as
the default. A request to explore an example can use `crack_panel` with
`demo: true`; keep it explicitly labelled as generated data with no live work.
Use the localhost fallback only when the native surface is unavailable or the
user asks for a browser preview. State which surface actually opened.

If configuration is missing or points to a workspace on another computer, the
view offers an example and connection details. A user request to connect this
project authorizes a scoped configuration repair: read the plugin README's
schema, preserve a backup, register the selected workspace and known run paths,
and keep launch disabled. Do not invent run records or move missing logs.
A configuration that already controls another workspace needs an additive,
validated update rather than replacement. Reopen or refresh the view after a
repair; an initially unconfigured server retries configuration loading.

## What you may do

The rest: https://github.com/ethanplusai/codex-on-crack/blob/HEAD/plugins/codex-on-crack-panel/skills/crack-panel/SKILL.md