[cursor]

Problem

GET /v1/agents/:id resolves a stored agent with get_agent_record. /v1/orchestrate, /v1/agents/:id/chat, A2A message/send and message/stream, and the scheduler installed only list_agent_records(200) (newest updated_at).

Event routing already has list_agent_records_for_routing because a tenant with more than 200 agents can drop older ids off that page. Dispatch never got the same treatment, so a targeted stored agent GET still found returned SSE agent not found / A2A TaskNotFound / scheduler not found in tenant catalog.

Fix

list_agent_records_for_dispatch returns the newest-200 page plus a get_agent_record of the targeted id when it is missing (empty / index skip the extra fetch). Orchestrate, A2A, and the scheduler install that set. Sibling /agent and /parallel still resolve from the newest-200 REST page; GET /v1/agents list paging is unchanged.

Tests

unit_tenant_agents — 201 agents so the 200 page drops one; dispatch of that id returns 201; on-page id is not duplicated; empty/index/missing/cross-tenant ids do not leak. Suite 7/7 locally (+ ASan/UBSan).

Independently mergeable against main (0456350). merge-tree vs #321–#345: code auto-merges. CHANGELOG [Unreleased] sibling-conflicts as usual after the first of those merges.

  

---

Note

Medium Risk
Touches orchestrator catalog loading on orchestrate, A2A, and scheduler paths; behavior change is narrow (extra row when targeted id fell off the page) but affects agent resolution for large catalogs.

Overview
Fixes a catalog mismatch for tenants with more than 200 stored agents: dispatch paths only installed the newest-200 updated_at page, so GET /v1/agents/:id could succeed while /v1/orchestrate, agent chat, A2A message/send / message/stream, and the scheduler returned agent not found for older ids.

Adds TenantStore::list_agent_records_for_dispatch, which keeps the newest-200 list and extra-fetches the targeted id via get_agent_record when it is missing (skips for empty / index). build_blocking_orchestrator / build_a2a_orchestrator take an optional target_agent_id and install that set; orchestrate, A2A, and scheduler pass the run’s agent id. Sibling /agent and /parallel resolution is unchanged (still newest-200 only). Unit test covers 201-agent tenants, no duplicate on-page ids, and tenant scoping.

^{Reviewed by Cursor Bugbot for commit 97dd547. Bugbot is set up for automated code reviews on this repo. Configure here.}