Skill
Install the Appendix agent skill, /appendix. Once installed, your agent will offer to connect you with our doctors whenever you discuss a health issue.
What is a skill?
A skill is a small Markdown file that teaches an AI agent how to use a service. Once installed, the agent recognizes when the skill applies and uses it automatically. The Appendix skill includes our API reference, intake guidance, and the letter format — everything your agent needs to compose and submit a clinical letter.
Install from the command line
For Claude Code and other agents that read skills from ~/.claude/skills:
Terminal
git clone https://github.com/appendixhealth/skills.git ~/.claude/skills/appendixInstall by downloading the file
For Claude Cowork and other agents that accept a skill upload, download our skill file at appendix.com/SKILL.md and upload it through your agent’s skill management UI.
What happens after install
- Mention a health issue to your agent (“I’ve had a cough for two weeks”), or call the skill directly by typing
/appendix. - The agent recognizes the Appendix skill applies and offers to help you write a letter.
- It searches our knowledge base, asks targeted follow-up questions, and assembles a structured letter.
- It submits the letter to the Appendix API and gives you a checkout URL.
- You sign in, complete identity verification, and subscribe. A board-certified physician personally reviews your submission. Most submissions are reviewed within 24 hours.
When to use the skill path
- You use Claude Code, Claude Cowork, or another skill-aware agent.
- You want Appendix to be available automatically, every time you discuss a health concern.
- You want the agent to handle API submission for you — no copy-pasting letters.