refs/heads/_mainline/actor/<id>
Each developer or agent writes an append-only event log. Only the actor writes to its own log.
Spec
Repo memory belongs to the repo.
Mainline stores engineering intent in Git refs and notes so the memory is portable, inspectable, local-first, and readable across agent vendors.
refs/notes/mainline/intents
When code lands on main, notes link merged commits back to the intent that produced them.
Lifecycle
Drafting to durable memory
draftingsealed localproposedmergedreverted
Terminal states such as abandoned, superseded, and reverted remain valuable: they prevent future agents from reviving a path the team already rejected.
Semantic fingerprints
Seal time extracts files, subsystems, API changes, behavioral changes, and tags for low-latency overlap checks.
Phase checks
Phase 1 screens overlaps with weighted Jaccard similarity. Phase 2 lets an agent judge semantic conflicts when needed.
Hub
The human reading surface shows pending work, file constraints, decisions, risks, and coverage gaps.
Config
Repos configure main branch, actor-log prefix, skip patterns, sync freshness, check thresholds, and merge strategy.