The verifiable coding agent runtime. Define your coding agent's process in natural language with stages, checks, and approval gates instead of hoping it follows your instructions.
Skill Claude CodeCodex
Use when building, testing, and deploying JavaScript/TypeScript applications. Reach for Bun when you need to run scripts, manage dependencies, bundle code, or test applications with a single unified tool.
Skill Claude CodeCodex
Detect and use Crabbox for repository tests and validation on remote runners. Use when crabbox.yaml or .crabbox.yaml exists, the crabbox CLI is available, or work needs remote compute, a clean or reusable environment, target-platform coverage, or auditable execution evidence.
Skill Claude CodeCodex
Create well-formatted commits with conventional commit format.
Skill Claude CodeCodex
Commit unstaged changes, push changes, submit a pull request.
Skill Claude CodeCodex
Manage stacked branches and pull requests with the gh-stack GitHub CLI extension. Use when the user wants to create, push, rebase, sync, navigate, or view stacks of dependent PRs. Triggers on tasks involving stacked diffs, dependent pull requests, branch chains, or incremental code review workflows.
Skill Claude CodeCodex
Use when setting up or running hooks with prek in any repository. prek is a Rust drop-in alternative to pre-commit for running Git hooks that check, format, lint, and validate code and repository files. Prefer it when speed, workspace mode, built-in hooks, shared toolchains, or native TOML configuration matter.
Skill Claude CodeCodex
Master TypeScript's advanced type system including generics, conditional types, mapped types, template literals, and utility types for building type-safe applications. Use when implementing complex type logic, creating reusable type utilities, or ensuring compile-time type safety in TypeScript projects.
Skill Claude CodeCodex
TypeScript and JavaScript expert with deep knowledge of type-level programming, performance optimization, monorepo management, migration strategies, and modern tooling.
Skill Claude CodeCodex
Example skill loaded from resourcesdiscover.
Skill Claude CodeCodex
First calendar skill.
Skill Claude CodeCodex
A skill with consecutive hyphens in the name.
Skill Claude CodeCodex
A skill that cannot be invoked by the model.
Skill Claude CodeCodex
A skill with invalid characters in the name.
Skill Claude CodeCodex
name: invalid-yaml description: [unclosed bracket.
Skill Claude CodeCodex
A skill with a name that exceeds 64 characters.
Skill Claude CodeCodex
This skill has no description field.
Skill Claude CodeCodex
This is a multiline description. It spans multiple lines. And should be normalized.
Skill Claude CodeCodex
A skill with a name that doesn't match the directory.
Skill Claude CodeCodex
A nested skill in a subdirectory.
Skill Claude CodeCodex
This skill has no YAML frontmatter at all.
Skill Claude CodeCodex
Root skill should win.
Skill Claude CodeCodex
Nested skill should be ignored.
Skill Claude CodeCodex
A skill with an unknown frontmatter field.
Skill Claude CodeCodex
A valid skill for testing purposes.