How to create a custom Agent SkillChoose one repeated task. Define its inputs, output, trigger, permissions, and stop conditions. Keep the core procedure in SKILL.md, move deterministic checks into scripts, and store detailed rules in references.

Choose one job and define the expected result.

Write a precise trigger description.

Move repeated checks and project rules into supporting files.

Test missing inputs, denied permissions, and failed checks.

Find skill-creation packages on GitHub.