Correct scheduler dispatch diagnostics so capacity decisions use consistent non-negative slot counts.
- Clamp excess semaphore releases at zero and warn once when a slot is returned without an active holder.
- Recompute dispatch capacity at each queue decision, including tasks started earlier in the same scheduler tick.
- Update scheduler and semaphore tests for true binding gates, non-negative diagnostics, and workflow-step env stability.
- Add a patch changeset for the scheduler capacity fix.
Files changed:
.changeset/fn-6423-scheduler-capacity.md | 5 +
packages/engine/src/__tests__/concurrency.test.ts | 32 ++++++
.../src/__tests__/executor-step-session.test.ts | 10 +-
packages/engine/src/__tests__/scheduler.test.ts | 122 ++++++++++++++++++++-
packages/engine/src/concurrency.ts | 29 ++++-
packages/engine/src/scheduler.ts | 117 ++++++++++----------
6 files changed, 248 insertions(+), 67 deletions(-)
Fusion-Task-Id: FN-6423
Fusion-Task-Lineage: a6b2e668-a822-46e9-9cd8-ac267fbde804
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