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FN-7082: add live running-agent count seam

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Add a side-effect-safe core seam so global concurrency reads can report live running-agent counts.

- Add core helpers to register a running-agent count source and derive active project totals.
- Wire CentralCore and dashboard server setup to read live counts from already-open stores without starting runtimes.
- Update the global concurrency route to preserve slot bookkeeping while sourcing currentlyActive/projectsActive from the live seam.
- Cover the seam, dashboard store resolver, server wiring, and route behavior with focused tests and document the multi-project behavior.

Files changed:
 .changeset/fn-7082-live-running-agent-count-seam.md       |   7 ++
 docs/multi-project.md                              |   2 +-
 packages/core/src/__tests__/central-core.test.ts   | 106 +++++++++++++++++++++
 packages/core/src/central-core.ts                  |  28 ++++++
 packages/core/src/index.ts                         |   7 ++
 packages/core/src/live-agent-count.ts              |  38 ++++++++
 .../dashboard/src/__tests__/project-routes.test.ts |  20 +++-
 .../src/__tests__/project-store-resolver.test.ts   |  71 ++++++++++++++
 packages/dashboard/src/__tests__/server.test.ts    |  45 ++++++++-
 packages/dashboard/src/project-store-resolver.ts   |  24 +++++
 packages/dashboard/src/routes.ts                   |  25 +----
 packages/dashboard/src/server.ts                   |  42 +++++++-
 12 files changed, 387 insertions(+), 28 deletions(-)

Fusion-Task-Id: FN-7082

Fusion-Task-Lineage: 4dbca204-8bea-4de5-b56b-7468b61575ce

Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>
This commit is contained in:
gsxdsm
2026-06-26 18:19:41 -07:00
parent d9b17dea01
commit 8bcda7325c
12 changed files with 387 additions and 28 deletions
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docs/multi-project.md
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@@ -110,7 +110,7 @@ Central health tracking keeps mutable project metrics, including:
## Global Concurrency Management
A singleton central record enforces system-wide limits so one project cannot monopolize all execution slots.
A singleton central record enforces system-wide limits so one project cannot monopolize all execution slots. Slot acquire/release bookkeeping remains separate from read-only running-agent displays: live read surfaces derive `currentlyActive` and per-project active counts from `in-progress` tasks in already-open project stores, while the persisted `globalMaxConcurrent` cap and `queuedCount` continue to come from central concurrency state.
## Plugin Scope in Multi-Project Mode