The persistence seam is now create/open/stat/list returning per-session
SessionHandles (read/append/flush/close); every log read and write flows
through the owning handle. The seam package exports only the service and
handle contracts, consumer-visible errors, and pure durable-data
validation helpers; each backend owns its complete storage runtime, and
the shared contract suites pin equivalent observable behavior. The
backend routes published sessions' live events by id into the active
write handle; agent-loop only acquires, seeds, and closes the handle.
Resume appends interruptedTurnClosers through its write handle;
session-query owns the revision-keyed cold cache. Legacy-only surfaces
are removed in the same swap: locate/readRaw/supportsRawArtifacts, the
legacy event-shape read migration, zstd torn-frame salvage,
DSH_SESSION_JSONL, and hook transcript_path population; a torn final
zstd frame is discarded whole; the session-list cold blank probe returns
on stat metadata (eventCount derived from the last physical row,
sizeBytes). The WebUI ZIP export serializes the logical log from a read
handle, so both backends export identically.
Refs #3245
Carries the session seq-brand master sync forward; unions the seq/offset
imports with this branch's jobs augmentation in commands.ts and
regenerates the catalogs and zh ports over the merged source.
Absorbs the session seq-brand refactor and the turn-rail preview layer;
regenerates the catalogs and graph docs from the merged source and
re-ports the zh config/event rows this branch owns.
Covers the woken-wait fast path (a wake landing while the generator is
suspended on a yield), the opened frame's live-detail arm, and the
sessionId-less caller resolution over an unowned job.
Carries the master sync forward (invariant-companion cleanup, alpha.3 bump);
regenerates the client api catalog so ISession lists both killJob and the new
loadThrough, and refreshes the new ptc-python-turn scenario's system-prompt
pin for this branch's bash timeout-promotion schema text.
Absorbs the repo-wide no-op invariant companion removal (ui-jobs loses its
placeholder companion, export, and devDep), the 0.1.2-alpha.3 release bump,
and the tool-subagent-report package retirement; regenerates the client slot
catalog for the shifted contract line numbers.
Observation (re)opens run on caller stacks — a React expand click, a
carrier retry — whose dynamic context has not declared remote.session, so
the ClientJobOutput wiring resolves the namespace to a concrete value while
the plugin's own context is current, exactly as the activity client did.
Caught by the live-job-stream web e2e, whose goldens (with the
background-job-list pair) now carry the ui-jobs list name; the client-apply
spec gains a jobOutput wiring smoke.
The regenerated session namespace requires the new stream; the fake serves
a never-yielding generator, and job-output.client.spec exercises the real
consumer.
Chinese sides of the jobs, jobs-local, tool-bash, tool-pwsh, tool-workflow,
session-controller, and ui-jobs pages follow their English edits; the
generated en-only catalogs (config catalog, capability seams, event
producer/consumer) get the same section surgery by hand; the activity
subsystem page triplet is fully removed and the jobs page carries the
record contract in both languages with fresh type-equiv manifest entries.
The three prior activity notes point at the superseding note. Web e2e label
assertions follow the ui-jobs copy, and the three test call sites that
invoked run() bare pass the producer face.
packages/activity/* and packages/api/activity-controller are removed. The
web roster is the session control stream's jobs frames alone; per-job output
observation rides session.observeJob and the client ctx.jobOutput service.
ui-activity returns to its upstream name ui-jobs and renders the single
roster — a row is expandable exactly when its job declared a record
(outputTotal present). Composition rows, dependency-policy exemptions,
tsconfig aliases and references, generated catalogs, and the docs pages
follow; the activity subsystem page is deleted and the jobs page gains the
record contract. The superseding Agent Note records the decision and points
the three prior notes at it.
SessionJob rows carry outputTotal exactly for record-declaring jobs, and a
new session.observeJob stream serves one job's retained record from an
absolute offset (anchor, coalesced output frames, terminal status) with the
fenced read resolved from the request's session — the same authorization
shape as the jobs roster. The client half gains ctx.jobOutput: the
reference-counted per-job observation service and its accumulated view
model, ported from the activity controller this replaces.
loadThrough now assigns its low-water target only when it owns the loop
(retargeting stays inside the running-jump branch): a call refused while
a plain load-earlier pull holds the pager no longer leaves jumpTargetSeq
behind to drag a later jump all the way to the head. The loop also
carries the doOpen stale-pass guard so a mid-flight resync stops it
instead of paging the new stream generation toward the old target.
READMEs record the rail's outline merge and the loadThrough paging
verb in both languages; the feature Agent Note owns the decision,
alternatives (sparse windows, minSeq wire bound, outline RPC, height
estimation), and coverage map. Regenerates the client/API catalogs the
widened faces feed.
Session.loadThrough(seq) loops the existing prepend pager (200-message
pages) until the window covers the target seq, with a shared low-water
retarget for repeated calls, a no-progress guard against empty pages
still claiming history, and loadOlder's fail-soft error posture. Busy
state rides the existing loadingOlder snapshot bit.
Tianyi Cui