TurnEndReasonMap.error now carries a single `error: LlmFailure` field:
an LlmError keeps its structured facts, any other error flattens to
errorChain text under the UNKNOWN code. Consumers read message/code
directly instead of defending against an unknown union — this also fixes
errorChain() rendering structured failures as '[object Object]' in the
TUI and ACP error paths. Document the turn-stopping contract: a
concludesTurn result never short-circuits already-submitted next-step
work (same-step additionalContexts or racing steering still runs), data
decides.
A prompt now resolves only when the agent reaches quiescence: the
correlated turn/end arms an endReason instead of settling immediately,
so steering or injected work that runs further turns before idle no
longer splits one prompt across the automation wire. Token-limit turn
endings settle as end_turn per the README contract (they are not
prompt-level stop reasons); model errors still reject immediately, and
explicit ACP cancellation stays 'cancelled'.
agent-loop: behavior tests for retry-while-busy, cancelled recovery
windows, no-facts stream failures, idle-listener preemption, rejected
driver promises under whenIdle, finish-chunk failures after step close,
presentationMeta persistence, pre-aborted and torn-down create/resume
signals, and configured-start failures over existing artifacts or after
teardown. The remaining guards that no public path can reach carry
justified v8 ignore annotations naming the invariant that starves them.
acp bridge: cover the retry-adoption path (a retry turn resolves the
prompt the failed turn deferred), the no-retry quiescence rejection, and
the admission-blocked cancelled settlement; the synchronous send-throw
catch is annotated as a future-proofing guard since the machine's send()
contains listener failures.
The automation bridge inherited two master-era assumptions the message
machine no longer honors. A prompt blocked at pre-turn admission opens no
turn, so no turn/end could ever settle it — the bridge now watches
whenIdle() and reports a turnless slot as cancelled (the disposed-agent
guard moved to a registry identity check before send). A failed turn no
longer rejects at its turn/end either: agent.retry() closes the failed
turn and opens a successor on the same history, so the bridge holds the
terminal error and lets a retry-triggered turn/start adopt the prompt,
rejecting only at quiescence with no successor.
Also: refresh the empty-response-retry fixture for retry-as-turn logging,
adapt master-side tests to the unified send()/UserMessageData API and
registry-fact disposal, resync the doc pairs both sides touched, trim
architecture.md back under its word ceiling, and regenerate the event and
persistence catalogs.
ACP v1 requires every agent to accept text AND resource_link prompt
content; the automation rewrite dropped the resource_link half of that
baseline. Restore the old bracketed-reference flattening in the codec,
reject only beyond-baseline blocks, and update the package contract and
Agent Note.
Also release the per-session prompt slot when agent.send() throws
synchronously (an agent disposed outside the bridge would otherwise
wedge the session into permanent 'already in flight' rejections),
drop the tautological version-negotiation branch, prove the scenario
env layer reaches the snapshot subprocess, pin bridge-side fail-closed
permission errors, and correct two overpromising test names.
_Kerman