Execute a multi-task plan as a controller that dispatches one fresh-context subagent per task, reviews each result against the spec, loops fixes, and tracks progress in a durable ledger. Use for any non-trivial build so the controller's context stays lean and every task is independently reviewed.
Write the failing test before the implementation, for a single piece of code — red, green, refactor. A finer grain than the ledger's task-level verify.command (subagent-driven-development); use this INSIDE an implementer's work on one task, not as a replacement for the ledger.
Bootstrap skill for the Ideal Harness. Explains the installed modules and when to route to them. Injected at session start so the agent knows the harness is active.