Back to Codex plugins
Codex · Documentation

Best Documentation Skills for Codex

Documentation skills draft and maintain human-readable context around your code — READMEs, inline docstrings, architecture decision records, and changelogs — all kept in sync with what the code actually does.

Designed to keep project documentation accurate with minimal manual effort — inside Codex and every other agent you use.

What documentation skills do

  • Generate a README from the current file tree
  • Write JSDoc / Python docstrings for a module
  • Draft an Architecture Decision Record (ADR)
  • Update the changelog from recent commits

Why pair them with Codex

  • Docs written in your project's tone and structure
  • Drift detection between code and docs
  • Onboarding material that stays current

Install a documentation skill for Codex

BuySkills CLI detects Codex automatically and writes the skill into the right directory.

# Install BuySkills CLI

$ npm install -g buyskills

# Install a documentation skill

$ npx buyskills install <skill-name>

Documentation Skills for Codex — FAQ

How do documentation skills work inside Codex?

Documentation skills draft and maintain human-readable context around your code — READMEs, inline docstrings, architecture decision records, and changelogs — all kept in sync with what the code actually does. When installed via BuySkills, the skill is written into the directory Codex reads from, and Codex's agent invokes it on demand as part of its normal loop.

Are the documentation skills for Codex free?

BuySkills hosts both free and paid documentation skills. Each listing shows the price (or "free") before install, so you can pick the right fit for your budget and workflow.

Will documentation skills overwrite my existing docs?

No. Doc skills default to 'append' or 'update section' mode — they propose diffs against your current doc files and let you accept or reject each block. Full overwrites are opt-in.

Can I use the same documentation skill with other agents?

Yes. One of BuySkills' core promises is cross-agent portability — install a documentation skill once and it works with Codex and every other supported agent (17+ total) without re-purchasing.

Get documentation skills running in Codex

Browse the full catalog of documentation skills and install any of them with a single command.

Browse documentation skills for Codex