SpineCodex: Let your Codex work, evolve, and scale on a SpineTree — up to 10× effective context and 89% more SWE-Milestone tasks resolved at 27% lower cost.
Skill Claude CodeCodex
Babysit a GitHub pull request after creation by continuously polling review comments, CI checks/workflow runs, and mergeability state until the PR is merged/closed or user help is required. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and keep…
Skill Claude CodeCodex
Search for breaking changes in external integration surfaces.
Skill Claude CodeCodex
Change size guidance (800 lines).
Skill Claude CodeCodex
Codex maintains a context (history of messages) that is sent to the model in inference requests.
Skill Claude CodeCodex
For agent changes prefer integration tests over unit tests. Integration tests are under core/suite and use testcodex to set up a test instance of codex.
Skill Claude CodeCodex
Run a final code review on a pull request.
Skill Claude CodeCodex
Diagnose GitHub bug reports in openai/codex. Use when given a GitHub issue URL from openai/codex and asked to decide next steps such as verifying against the repo, requesting more info, or explaining why it is not a bug; follow any additional user-provided instructions.
Skill Claude CodeCodex
Run a GitHub issue digest for openai/codex by feature-area labels, all areas, and configurable time windows. Use when asked to summarize recent Codex bug reports or enhancement requests, especially for owner-specific labels such as tui, exec, app, or similar areas.
Skill Claude CodeCodex
Update the title and body of one or more pull requests.
Skill Claude CodeCodex
Choose Rust types for operating system paths across the Codex repository. Use when defining new path-bearing types or explicitly migrating existing ones.
Skill Claude CodeCodex
Pushing GitHub Actions changes, resolving push rejection, requesting upload exceptions.
Skill Claude CodeCodex
Testing against remote executors in integration tests.
Skill Claude CodeCodex
Guide for testing Codex TUI interactively.
Skill Claude CodeCodex
Update Codex's pinned v8 / rustyv8 versions, validate the release-candidate path, and investigate failed V8 canary or artifact builds. Use when asked to bump V8, update rustyv8 artifacts, prepare or validate a V8 release candidate, check v8-canary, or diagnose why a V8 version update no longer builds.
Skill Claude CodeCodex
Generate or edit raster images when the task benefits from AI-created bitmap visuals such as photos, illustrations, textures, sprites, mockups, or transparent-background cutouts. Use when Codex should create a brand-new image, transform an existing image, or derive visual variants from references, and the output…
Skill Claude CodeCodex
Use for Codex models/pricing, scheduled tasks, skills, settings, setup, troubleshooting, customization, automations, and self-knowledge—including 'you,' 'your,' 'this app,' or 'this coding agent' when they refer to Codex—and for OpenAI APIs/products and ChatGPT Work. Also use for model choice/migration, prompting…
Skill Claude CodeCodex
Create and scaffold plugin directories for Codex with a required .codex-plugin/plugin.json, optional plugin folders/files, valid manifest defaults, and personal-marketplace entries by default. Use when Codex needs to create a new personal plugin, add optional plugin structure, generate or update marketplace entries…
Skill Claude CodeCodex
Perform a read-only, defect-first review of a specified code change and return every actionable finding. Use when another agent delegates review of uncommitted changes, a base-branch diff, a commit, or custom review instructions.
Skill Claude CodeCodex
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations.
Skill Claude CodeCodex
Install Codex skills into $CODEXHOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos).