fusion

Files

gsxdsm 9fa8b386ee FN-9059: add durable workspace coordination leases

Prevent overlapping multi-node workspace operations and duplicate repository landings.

- Add durable coordination leases, fence tokens, and land-intent persistence.
- Fence workspace merge dispatches and repository publication across engine nodes.
- Reconcile expired coordination state safely and cover lease lifecycle behavior.

Files changed:
 .../fn-9059-workspace-durable-coordination.md      |   7 +
 AGENTS.md                                          |   1 +
 docs/architecture.md                               |   2 +
 docs/multi-project.md                              |  48 ++++
 .../workspace-coordination-leases.pg.test.ts       |  56 ++++
 .../__tests__/postgres/workspace-leases.pg.test.ts | 112 ++++++++
 packages/core/src/engine-node-identity.ts          |  22 ++
 packages/core/src/index.ts                         |   3 +
 .../0060_fn_9059_workspace_coordination_leases.sql |  10 +
 packages/core/src/postgres/schema-applier.ts       |  13 +-
 packages/core/src/postgres/schema/project.ts       |  31 ++
 packages/core/src/store.ts                         |  18 ++
 packages/core/src/task-store/workspace-leases.ts   | 261 +++++++++++++++++
 packages/core/src/tasks/workspace-lease-types.ts   |  24 ++
 .../engine/src/__tests__/project-engine.test.ts    |  69 ++++-
 .../src/__tests__/self-healing-workspace.test.ts   |  63 ++++-
 .../workspace-durable-coordination.test.ts         |  49 ++++
 .../src/__tests__/workspace-merger-lease.test.ts   | 312 ++++++++++++++++++++-
 packages/engine/src/merge/merger-ai.ts             | 277 ++++++++++++++++--
 packages/engine/src/merge/workspace-fence-ref.ts   | 171 +++++++++++
 packages/engine/src/project-engine.ts              | 175 ++++++++++--
 packages/engine/src/runtimes/in-process-runtime.ts |   4 +-
 packages/engine/src/self-healing.ts                | 191 ++++++++++++-
 packages/engine/src/util/run-audit.ts              |   2 +
 .../engine/src/worktree/worktree-acquisition.ts    |  43 ++-
 25 files changed, 1901 insertions(+), 63 deletions(-)

Fusion-Task-Id: FN-9059

Fusion-Task-Lineage: e51e3f54-69ee-4337-a218-4895d87474aa

Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>

2026-08-15 03:22:13 -07:00