Epic D: Add pre-spawn worker detection to git-worker-guard (blocks worktree-add
and agent-spawn from workers). Enhance check-file-manifest-overlap.sh edge cases.
Wire validate-swarm-evidence.sh into CI. Fix .agents/retros→retro in index.go
and init.go. Add grep-for-existing-functions to swarm worker template.
Epic E: Replace partial embedded check in pre-push-gate with full
validate-embedded-sync. Lazy-init git rev-parse in research-loop-detector.
Add retag idempotency guard (skip if tag already at HEAD). Add git_sha to
release-artifacts.json manifest. Empty stdin guard in go-test-precommit.
Boden Fuller