One assistant message carrying several subagent calls now overlaps them
under the rolling pool (maxParallelToolCalls) instead of serializing each
foreground delegation behind an exclusive barrier; results still commit
in model order.
tool-subagent declares isConcurrencySafe: () => true for every call form:
children work in their own sessions, a run never mutates the parent
session, and sibling workspace coordination already belongs to the model
for background, continuable, and workflow children. The former
serial-execution pin flips to a parallel pin plus a gated genuine-overlap
test, and the authored subagent-parallel snapshot pins the assembled
transcript (tool/call, tool/call, tool/result, tool/result) with
interchangeable twin children, which replay race-free under the existing
first-call binding and createdAt harvest ordering.
The provider seam now requires concurrent starts and continuable
preparations for distinct children to isolate operation-local state,
cancellation, settlement, and cleanup; a continuable gate test proves a
cancelled preparation leaves no Agent or durable Session while its
sibling persists independently.
Closesdeepseek-harness/deepseek-harness#1489
Master advanced from 1ac6ee70bb24a566cca74d99bdfe5b1bbc092940 to cb7b5af91e9f23bb300a1b7d4fb64b64abbdea01 while the prior retarget's fresh CI was finishing. Preserve both already validated merge checkpoints and incorporate the new live tip with another forward merge instead of rewriting history.
The newer base adds session-log format guards and benchmark documentation. It merges automatically, including the generated config-catalog overlap, so no MCP feature resolution is required; this checkpoint makes GitHub evaluate PR #2187 against the master tip current at the final push.
Master advanced from c757901957abdfd87f1cd7b11ecab16f3050e65d to 1ac6ee70bb24a566cca74d99bdfe5b1bbc092940 while retarget verification was running. Preserve the already validated c757901957 checkpoint and merge the new tip forward instead of rewriting that checkpoint.
The newer master changes subagent output selection and removes the empty experimental package group. It merges cleanly with PR #2187, so no feature-resolution changes are required; this commit makes final mergeability and CI evaluate the branch against the live master tip.
Retarget PR #2187 from master 8a763b34645fc9371c0c21595ac65438d603d9bf to c757901957abdfd87f1cd7b11ecab16f3050e65d so the reconnect changes are evaluated against the current release and package metadata.
Resolve the mcp-client package.json conflict by preserving master's publishable-package metadata and workspace peer ranges while retaining the PR's direct @deepseek-ai/dsh-timeout peer and development dependency. The reconnect implementation therefore keeps its explicit runtime contract without discarding current-master release configuration.
Review round: the JSONL backend now refuses a foreign header version straight
from the raw header line, before validating today's header shape or decoding
any event row, so a structurally different future format reports the upgrade
direction instead of corruption (shared message builder
sessionFormatVersionRefusal). HMR live-prefix adoption runs the unknown-type
guard like the other read paths. The appendCore comment now states why the
unknown-type guard is read-side only, the loadStoredFrom JSDoc and README pin
the seek-vs-sequential refusal-scope divergence, and the generated catalog
preamble lists the ignorable envelope field.
Old runtimes meeting a newer session format now fail loud instead of
misreading: version refusal names the direction (newer: upgrade the
harness; older: no upgrade path) and points at the raw JSONL log, and an
event type outside the generated known vocabulary refuses resume unless
its envelope carries the new ignorable: true marker (default: required,
so a forgotten marker over-refuses instead of silently resuming a gutted
session). gen-persistence-catalog now also emits
KNOWN_SESSION_EVENT_TYPES; SQLite stores the marker in a dedicated
column (SCHEMA_VERSION 15). The versioning design (monotonic integer,
n->n+1 upgrader chain, migrate-on-continue) is recorded in the
session-log-version-mechanism Agent Note.
The /feedback acknowledgement now appends a sharing-policy sentence after the
anonymous user id. The seeded-history e2e regex anchored on the end of the
User line, and the golden snapshot did not include the disclosure. Update both
to match the new format, and re-record the module-graph translation-pairing
hash after rebasing onto master (which picked up the windows-native ACL
coverage fix in #2182).
Regenerates the ack golden for the merged acknowledgement format, records
the zh counterparts and pairing hashes for the telemetry and catalog
pages, and restores the command-feedback to session-telemetry edge and
dependency in the module graph.
The feedback-command e2e now drives the recorded prompt through a separate
all-modes test that arms whenTurnSettled before sending and writes the
fixture back via recordFixture in record mode; the acknowledgement golden
test runs only in replay/refresh. The scaffold restores the pinned DSH_HOME
on the persistence-root setup failure path, and the telemetry subsystems
page links the README's sharing-disclosure anchor.
Replaces the patch round trip. An app's entrypoint resolves the command
line into a service, and the rows it configures read that service from
their own config — port: !!js ctx.get('webStartup')?.port ?? 3080 — so the
resolved value beats the value written beside it and nothing is written
back into a row or handed to the launcher.
A bundle names the entrypoint row in its manifest (dsh.bundle.entrypoint),
which is what lets the boot mount in two passes: entrypoints alone, then
the whole composition. That ordering is required, not cosmetic — a row's
config expressions are evaluated when the include applies the row, and a
strict ctx.get only answers for a service whose providing fiber is already
active.
What this removes: ctx.appPatches and the launcher-owned patch layer, the
disable/re-enable recycle and its in-flight-mount barrier, overrideConfig,
and the reload hazard they existed for. A live config edit now re-applies
the second pass against services that are still up, so a served port
survives by construction.
What it adds: ctx.appReady, because Loader settlement no longer means the
app is up — a row mounted in the second pass can observe a settled tree
while that pass is still running, or already rolling back. The web URL line
waits for it, so a boot that fails in the second pass announces nothing.
A launcher provides three values before the tree mounts: ctx.cmdlineArgs
(get() is the whole interface) carrying everything after its own flags,
ctx.appExit for a bounded exit, and ctx.appPatches for decisions a later
recomposition must keep. An app's startup row injects cmdlineArgs and calls
runStartup() with its own commander program.
Rows the app configures inject its startup service, so they wait until the
startup row has resolved their values and provided it; --help prints,
disables those rows, and exits without the app ever starting.
A changed row is recycled — disabled, then re-enabled with its new values —
because a row's config is resolved when the Loader creates its fiber, while
the row is still waiting. Recycling never touches inject: an inject update
restarts the row from its unwrapped callback and loses the plugin's own
static injections. A mount still in flight is allowed to settle first, so
the disable has a fiber to dispose instead of racing one into existence.
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