codexskills.dev

The Starter Pack

Ten skills that improve almost every Codex session. If you install nothing else, install these. They change how Codex works on any codebase: it learns your conventions from a lean AGENTS.md, reproduces bugs before patching them, plans larger changes before touching files, and leaves commits and pull requests a reviewer can trust.

  • 10 skills
  • 1,648 lines of instructions
  • MIT

What's inside

Best for: Every Codex user on any stack. Start with agents-md-authoring and systematic-debugging, then add the rest as the work calls for them. Each skill loads when a request matches its description, or call one directly with its $name.

  1. AGENTS.md Authoring Short, verified project rules Codex follows Codex Mastery$agents-md-authoring181 lines
  2. Systematic Debugging Explain the bug before you change a line Engineering Workflow$systematic-debugging188 lines
  3. Implementation Planning A plan grounded in real files, approved before coding Engineering Workflow$implementation-planning176 lines
  4. Test-Driven Development See it fail for the right reason, then pass Engineering Workflow$test-driven-development153 lines
  5. Git Commit Hygiene Atomic commits a reviewer can read in order Engineering Workflow$git-commit-hygiene154 lines
  6. Pull Request Writing PR descriptions reviewers can approve fast Engineering Workflow$pull-request-writing140 lines
  7. Code Review Find the 3 a.m. bug before the naming nits Engineering Workflow$code-review175 lines
  8. Codebase Onboarding Answer how this repo works with file paths, not guesses Engineering Workflow$codebase-onboarding190 lines
  9. Safe Refactoring Small green steps, zero behaviour change Engineering Workflow$safe-refactoring149 lines
  10. Codex Context Budget Spend the context window on the task, not the preamble Codex Mastery$codex-context-budget142 lines
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