
Phase skill: post-merge cleanup — merge the approved PR, verify Railway deploy, finalize Linear status, remove worktree
Phase skill: fetch Linear ticket or parse task description into structured context
Phase skill: TDD implementation — write tests first, then make them pass
Phase skill: run all quality checks — typecheck, tests, lint, format
First principles and core discipline for agent engineering, plus a concept library that maps workflow friction to solutions. Hub skill referenced by all Harnessable action skills.
Review what happened during implementation, visualize friction patterns, and reshape your harness — fix issues, adopt concepts, generate new skills. The reflection half of the harness loop.
Phase skill: start the app on an isolated per-task environment and verify the deliverable works — browser checks via Claude in Chrome for UI, HTTP calls for API
Phase skill: commit changes, push branch, create a GitHub pull request, and watch CI to green
Launcher — pick up a Linear ticket or task description and drive it through the full phased workflow (pickup → understand → plan → implement → quality → verify → ship).
Guided onboarding — teaches a newcomer (human or agent) what harness engineering is, then walks them through THIS project's specific harness with real examples.
Universal state machine driver — reads state file, dispatches to phase skills, loops until workflow complete
Phase skill: create an implementation plan with TDD test strategy
Discover your team's development lifecycle through a deep dive conversation, then generate a phased workflow tailored to how you actually work.
Phase skill: explore the codebase to understand what needs to change for the ticket