Example Subagent Fork Skill

Goal: create a skill that runs a self-contained task in isolated context and returns a concise summary.

Input collection approach

This case collected:

1. official provider docs for skill execution in forked context
2. examples of self-contained tasks that benefit from isolation
3. failure cases where passive guidance was incorrectly put into subagents
4. summary expectations for returning results to the main thread

Coverage matrix used

Required dimensions tracked during synthesis:

1. why isolation helps
2. task prompt clarity
3. output/summary contract
4. tool/model assumptions
5. portability constraints

Synthesized artifacts produced

The resulting skill references included:

1. actionable task body
2. expected summary schema
3. portability note
4. anti-pattern showing passive guidance that should stay inline

What made this high quality

1. the skill body was a task, not a convention list
2. the isolation benefit was concrete
3. the result expected back in the main thread was explicit