Migrating a Claude Code skill from WebFetch to the new CircleCI CLI: lessons learned about tool and API design

One of the Claude Code skills in my idea-to-code plugin is debugging-ci-failures . It tells Claude Code how to watch and diagnose a failing CI build. Specifically, it instructs Claude Code to do the following five steps: Watch the build to completion Identify the failing job Fetch the failing step’s output Download the test artifacts Read the JUnit TEST-*.xml files to find the root cause The skill supports two CI systems: GitHub Actions (via the gh CLI) and CircleCI.