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gsxdsm 6bd8004ba1 FN-8915: document agent activity API contract 
Publish an inspectable contract for durable agent-activity history and pagination.

- Define the route wire shape, cursor semantics, retention, and SSE recovery behavior.
- Add PostgreSQL and dashboard coverage for documented pagination and truncation guarantees.
- Link architecture and diagnostics guidance to the canonical contract and validate its prerequisite lineage.

Files changed:
 .changeset/fn-8864-agent-activity-events.md        |  2 +-
 AGENTS.md                                          |  1 +
 docs/agent-activity-contract.md                    | 94 ++++++++++++++++++++++
 docs/architecture.md                               |  2 +-
 docs/diagnostics.md                                |  2 +-
 .../agent-activity-cursor-contract.pg.test.ts      | 90 +++++++++++++++++++++
 .../src/__tests__/agent-activity-route.test.ts     | 10 +++
 .../src/__tests__/sse-agent-activity.test.ts       | 12 ++-
 scripts/check-fn-8864-ancestry.sh                  | 35 ++++++++
 9 files changed, 244 insertions(+), 4 deletions(-)

Fusion-Task-Id: FN-8915

Fusion-Task-Lineage: da3f8c96-3b58-4e6d-a413-c51bdd643f26

Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>
2026-08-09 15:58:54 -07:00
..
__test-utils__
test: bind a project partition in the PG harness for built-in agent provisioning
2026-08-07 17:33:56 -07:00
__tests__
FN-8915: document agent activity API contract
2026-08-09 15:58:54 -07:00
agents
FN-8864: add durable agent activity stream
2026-08-09 14:39:17 -07:00
ai
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
async-stores
FN-8852: exclude heartbeat writes from revision history
2026-08-08 23:16:01 -07:00
automation
FN-8851: attribute settings writes by request source
2026-08-08 22:55:38 -07:00
backup
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
board
FN-8868: restore durable agent activity telemetry
2026-08-09 10:28:24 -07:00
branch
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
central
feat: restart the development engine on source changes (#3329)
2026-08-04 08:57:30 -07:00
chat
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
cli
FN-8836: classify GitHub branch policy merge blocks
2026-08-08 18:56:43 -07:00
config
FN-8903: add event-driven GitHub CI merge checks
2026-08-09 09:14:56 -07:00
db
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
docker
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
duplicates
FN-8840: recognize duplicate redirects in task titles
2026-08-08 19:58:43 -07:00
eval
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
git
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
goals
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
i18n
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
ideation
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
insights
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
memory
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
merge
FN-8910: allow held tasks to remediate review findings
2026-08-09 15:16:12 -07:00
mesh
FN-8857: invalidate stale task dispatch routes
2026-08-08 23:05:29 -07:00
missions
FN-8824: enforce serial mission slice advancement
2026-08-07 20:56:52 -07:00
notification
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
planner
fix: prevent stale planning approvals and review churn (#3327)
2026-08-04 00:20:08 -07:00
plugins
FN-8762: extract Todo Lists into bundled plugin
2026-08-03 09:04:45 -07:00
postgres
FN-8911: allow direct database URLs for planning locks
2026-08-09 15:24:21 -07:00
process
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
research
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
sandbox
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
secrets
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
stores
FN-8868: restore durable agent activity telemetry
2026-08-09 10:28:24 -07:00
task-store
FN-8864: add durable agent activity stream
2026-08-09 14:39:17 -07:00
tasks
FN-8843: assign eligible executors to new tasks
2026-08-09 14:12:49 -07:00
types
FN-8864: add durable agent activity stream
2026-08-09 14:39:17 -07:00
workflows
FN-8856: bound scheduler hold-release sweep work
2026-08-09 04:37:47 -07:00
_layout.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
builtin-traits.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
column-roles.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
detect-content-language.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
gh-cli.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
index.gate.ts
FN-8870: add structural approval and report mail
2026-08-09 00:41:18 -07:00
index.ts
FN-8911: allow direct database URLs for planning locks
2026-08-09 15:24:21 -07:00
plugin-mcp-servers.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
plugin-task-store-gate.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
project-lane-vocabulary.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
provider-instance.test.ts
FN-8651: add named provider credential instances
2026-07-31 21:56:30 -07:00
provider-instance.ts
FN-8651: add named provider credential instances
2026-07-31 21:56:30 -07:00
session-identity-registry.ts
FN-8809: preserve agent principals for secret approvals
2026-08-05 16:46:53 -07:00
store.ts
FN-8864: add durable agent activity stream
2026-08-09 14:39:17 -07:00
task-delete-attribution.ts
FN-8673: comment on split source issue closures
2026-08-01 02:47:25 -07:00
task-delete-notice.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
task-document-concurrency.ts
feat(core): support additive archived task documents (#2375)
2026-07-22 08:30:12 -07:00
task-lane-cache.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
tool-output-budget.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
types.ts
FN-8864: add durable agent activity stream
2026-08-09 14:39:17 -07:00
workflow-events.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
workflow-merge-proof.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00