Two bugs that compounded into the "Director does the work itself" UX:
1. workspace/builtin_tools/delegation.py: _execute_delegation only
handled HTTP 200 in the response branch. When the peer's a2a-proxy
returned HTTP 202 + {queued: true} (single-SDK-session bottleneck
on the peer), the loop fell through. Two iterations later the
`if "error" in result` check tried to access an unbound `result`,
the goroutine ended quietly, and the delegation stayed at FAILED
with error="None". The LLM checking status saw "failed" + the
platform's "Delegation queued — target at capacity" log line in
chat context, concluded the peer was permanently unavailable, and
bypassed delegation to do the work itself.
Fix: explicit 202+queued branch. Adds DelegationStatus.QUEUED,
marks the local delegation as QUEUED, mirrors to the platform,
and returns cleanly without retrying. The retry loop is for
transient transport errors — queueing is a real ack, not a failure
to retry against (retrying would just re-queue the same task).
check_delegation_status docstring extended with explicit per-status
guidance: pending/in_progress → wait, queued → wait (peer busy on
prior task, reply WILL arrive), completed → use result, failed →
real error in error field; only fall back on failed, never queued.
2. canvas/src/components/tabs/chat/AgentCommsPanel.tsx: filter dropped
every delegation row because it whitelisted only a2a_send /
a2a_receive. activity_type='delegation' rows (written by the
platform's /delegate handler with method='delegate' or
'delegate_result') never reached toCommMessage. User saw "No
agent-to-agent communications yet" while 6+ delegations existed
in the DB.
Fix: include "delegation" in the both the initial filter and the
WS push filter, plus a delegation branch in toCommMessage that
maps the row as outbound (always — platform proxies on our behalf)
and uses summary as the primary text source.
Tests:
- 3 new Python tests cover the 202+queued path: status becomes
QUEUED not FAILED; no retry on queued (counted by URL match
against the A2A target since the mock is shared across all
AsyncClient calls); bare 202 without {queued:true} still
falls through to the existing retry-then-FAILED path.
- 3 new TS tests cover the delegation mapper: 'delegate' row
maps as outbound to target with summary text; queued
'delegate_result' preserves status='queued' (load-bearing for
the LLM's wait-vs-bypass decision); missing target_id returns
null instead of rendering a ghost.
Does NOT solve: the underlying single-SDK-session bottleneck that
causes peers to queue in the first place. Tracked as task #102
(parallel SDK sessions per workspace) — real architectural work.
This PR makes the runtime handle the queueing correctly so the LLM
doesn't bail out, and makes the delegations visible in Agent Comms
so operators can see what's happening.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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