goal-session rides retry turns and survives admission failures. A
recovery policy closes a goal round's failed turn and reopens its
history under a retry trigger; the attempt now adopts that turn and
drops the failed turn's provisional reason, so the round settles from
the retry's own outcome instead of blocking an armed goal with
turn-error after a successful response. A downstream admission hook
that throws (rather than blocks) used to strand the queued reservation
forever; the listener now clears a still-turnless matching attempt on
the rejection path and reschedules the round.
agent-loop contains a persistently rejecting step close in the catch
path the same way the finally contains the turn close, so the
post-finally tail always publishes the terminal status — previously a
double veto escaped run(), leaving status at running while whenIdle()
resolved. The whenIdle catch arm is annotated as the backstop it now
is: every driver rejection path is contained today.
workspace-context folds an already-appended baseline from the session
log when the plugin is hot-remounted over a live session, instead of
injecting a duplicate from its fresh mount-local guard.
The TUI's reference-admission discard listener installs before
followup(): admission runs synchronously inside it on the common path,
so a listener installed afterwards missed its own cleanup and leaked
one callback per referenced prompt.
agent-loop lifecycle: dispose drains machine.done to true quiescence.
cancel()'s own running-to-idle transition can legitimately re-enter
through an automation listener (goal-session's idle drive runs
synchronously to its first await) and replace done with a fresh
admission after the single capture; teardown now re-cancels and
re-awaits until the slot stabilizes, so the scope never unwinds under a
live run.
tools: a nested concludeTurn() stages on its own execution and promotes
to the enclosing composite only on the call's authoritative successful
verdict. A post-execute policy that converts the nested success into an
error no longer lets a recovering composite stop the turn on a failed
terminal operation (the Code Mode structured-output shape).
goal-session: the driver owns its round durability barrier again. The
loop's persistence is eager write-behind with no turn-end flush, so the
old post-turn agent/error signal for flush failures never fires; a
settled round now sets needsCheckpoint and re-enters drive, flushing
before the next reservation and disarming on failure instead of queueing
an autonomous round on state that was never persisted.
The public classifier existed to defend an exported reader against
arbitrary signals, but its only production caller is the loop reading
its own machine-private turn signal, where cancel() is the sole aborter
and always writes one frozen canonical cause. Delete the export and its
15-line structural validation: settle() states the slot invariant with
one cast, the boolean call sites ask signal.aborted directly, and the
retry veto drops entirely because a requested window already implies a
live signal (cancel() retires the window before aborting).
The abort(reason) channel and first-wins semantics are unchanged; only
the reader's publicness is gone, and with it the paranoia it required.
Three ordering fixes on the admission and settlement boundaries.
kick() installs the abort owner, marks the interval busy (running is
emitted before any listener can observe the claim), and installs the
pending done BEFORE publishing agent/inbox/dequeue: a dequeue listener
that cancels or disposes now finds live cancellation and quiescence
ownership instead of the previous activity's settled state, and claimed
prompt admission — including asynchronous prompt-submit hooks — sits
inside the running interval where cancel routing can reach it. The
admission-rejected path yields one microtask before continueOrIdle so
the idle transition cannot fire inside send()'s synchronous extent.
agent/idle now names only committed turns: a run that aborts or fails
before its turn/start commits exits without the notification, since
there is no durable turn/end for settlement consumers to act against.
The event's JSDoc states the narrowed contract.
The coverage pass left agent.ts with eight v8 ignore annotations — well
above this repo's density elsewhere. Six guarded conditions the
surrounding invariants already exclude; expressing the invariant directly
deletes the dead arm instead of excusing it: admission/run teardown
releases the abort slot unconditionally (no writer can replace the owner
mid-flight), the request-failed branch closes its always-open step
unconditionally, the recovery finally retires the window it installed,
and the driver finally drops its dead last-resort step close (every path
already closes the step). kick()'s dequeue states the non-empty-queue
invariant as a non-null assertion. The two remaining ignores are the
assertNever exhaustiveness guard and the retry()/run() slot-race guard,
both repo-wide conventions.
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.
concludesTurn is terminal: a completed step now carries the concluded fact
to the driver, which ends the turn immediately instead of letting steering
that arrived during the tool batch (or from an agent/stopping listener)
reopen it. The steering is not lost — it drained into the log as
steering/message before the decision point, so it feeds the next turn's
request. Also annotates the driver's unreachable invariant guards
(exhaustiveness default, abort-slot ownership) for the coverage gate.
A pre-commit turn/start rejection previously left the machine bricked:
lastTurn had already advanced past a turn the log never recorded, so every
later turn/start violated the session invariant's contiguity rule, and the
admitted prompt lingered in the outbox to leak into the next turn's request.
Keep admitted input on the stack (an argument to run()) until turn/start
commits, then advance lastTurn, set turnOpen, and append the prompt and its
additional contexts as user/message events inside the now-existing turn.
A rejected turn/start therefore unwinds with zero shared state to roll
back, the turn number stays reusable, and the outbox never holds input for
a turn that does not exist. This also restores the documented event order:
the prompt follows turn/start directly instead of waiting in the outbox
behind any steering carried over by cancel({keepInbox}).
Address a second fresh-eye review of the review fixes:
- MAJOR: late steering that lands after runTurn returns terminally
stopped (e.g. during the post-turn flush) was drained by runLoop and
dropped without a discard, leaving a dangling outstanding id the
negative-only invariant can't catch. Emit agent/inbox/discard for it,
symmetric with the in-turn terminal-stop drop.
- remove the dead cancel() idle-settle branch: whenIdle's fast path
already resolves for a lone quiet item, so no waiter is ever left for
it to settle. Document why.
- gen-cordis-api classShape now drops private/protected/#private members
and strips getter/setter bodies, so Session no longer leaks private
fields and getter bodies into the model catalog.
- document that AgentMessage intentionally omits meta (durable-only).
Adds a regression test for the late-steering discard.
Resolve six review findings on the unified-send change:
- quiet (wakeup:false) queued items no longer un-park the driver; the
inbox distinguishes hasWakingQueued (drives the loop, idle/quiescence)
from hasQueued (anything to dequeue), so a lone quiet item parks at idle
and rides the next waking send. whenIdle/cancel settle off the waking
signal, so cancelling a parked quiet item no longer hangs whenIdle.
- SendOptions.meta on queued/steering sends now reaches the durable
user/message and steering/message (was dropped except on injection).
- a terminal agent/turn-stop that drops pending steering emits
agent/inbox/discard so the enqueue-dequeue-or-discard ledger balances.
- the loop-authored continuation reason is snapshotted and frozen like a
public send.
- gen-cordis-api collects exported classes (body-stripped) so the now-
abstract-class Agent and its transitive shapes reappear in the API
catalog.
Adds regression tests for each and re-records the affected snapshot.
Add a branded AgentMessageId assigned to each accepted send message and
returned from send/followup/steer/inject (was void). Rename the inbox
event payload InboxItemInfo to AgentMessage, carrying that id so a caller
can correlate a queued item with its enqueue/dequeue/discard events.
The FIFO-conservation invariant fired on the loop-authored continuation
reason path: a continue-with-reason decision entered the steering FIFO
without an agent/inbox/enqueue, so its later dequeue/discard had no
matching enqueue. Emit the enqueue for that steer too, add a regression
test that mounts the invariant over a continue-with-reason turn and a
cancel, and hoist the duplicated inboxInfo helper into inbox.ts.
Found by fresh-eye review.
Replace send/steer/inject with one Agent.send primitive over the
(target × wakeup) matrix; followup/steer/inject become fixed-preset
alias methods on the now-abstract Agent class. Coalesce context/message
into user/message (injected context is a non-user source). Replace
agent/queued with agent/inbox/enqueue/dequeue/discard, add cancel
keepInbox, and add a FIFO-conservation invariant.
_Kerman
Turtle
Tianyi Cui
Yichen Jiang