Add an explicitly invoked Pi orchestration skill that drives a plan from the
current conversation or an @file through a published spec, linked dependency-aware
tickets, and one-at-a-time isolated implementation to a merged PR, using Herdr
and Pi agents with no Bun CLI or orchestration runtime.
- orchestrate-herdr (SKILL.md + dispatcher/run-loop/state references): worker-node
selection and Herdr discovery/validation, plan-and-publish, one-at-a-time task
loop (claim, isolate, implement, verify, four-axis review, scoped fix rounds max
three, transient retries max two, reconcile uncertain side effects, escalate),
PR/merge/close gates, authoritative worker-node state, cross-system recovery,
and owned-only cleanup that preserves dirty worktrees and retained state.
- dual-review: self-contained correctness/security + maintainability review axis
(four-axis review with code-review).
- to-spec and to-tickets: drop disable-model-invocation so the orchestration
workflow can invoke them.
- READMEs: list the two new skills.
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