Delete @deepseek-ai/dsh-invariants, every package's ./invariant companion
and its tests, the invariant gates and Vitest setup, the scoped-event
resolver generator, and the INVARIANT-coded listener rethrow paths.
Update docs, READMEs, Agent Notes, and add an upgrade guide.
With a job registry composed, tool-bash and tool-pwsh now register every
command with ctx.jobs as it starts and wait on the job with the registry's
own bounded wait: a command that finishes in time returns the ordinary
foreground result and its record is removed, one that outlives the timeout
returns the same job id it already had, and a kill from outside the call is
reported as `[stopped: <reason>]`. Nothing changes hands at the deadline, so
the shell seam loses `onExpiry: 'offer'`, `ShellExecution.promotion`, and
`ShellPromotionOffer`, and both local executors drop their offer arm.
The registry stays optional: the tools register a foreground-only definition
while no registry is composed and swap to the job-backed one inside a
`ctx.inject(['jobs'])` fork, so a composition without jobs keeps a plain bash
with no job tools in the model's schema. A refused registration at the start
(admission, no controller) runs under the executor's deadline kill, and a wait
that expires before the process spawned ends as the preparation timeout.
JobRegistry gains `remove(id, caller?)` and the `settled` event reports
`awaited`, so dsh-tool-jobs no longer keeps its own wait ledger; it withholds
notices for awaited settlements and for kills the model requested. The tool
catalog harvest composes the registry so the shipped schema stays documented,
and the two compaction fixtures move their context window from 10000 to 10300
tokens because the branch's larger tool schemas pushed their condensed history
over the old trigger, which requested a fourth scripted model call.
A rejected background spawn produces no process output, so the observed stderr reader the job registry pumps was empty and the model's job_output after such a failure showed only killed before exit, where master's consuming read rendered [stderr] followed by spawn failed: … with the cause. The local providers now serve the note as the whole observed stderr stream once the spawn rejected, and the consuming read still folds it in exactly once, so the model's first read after the failure is byte-identical to master's. ShellProcess.observed and both of its readers are required: every background process exposes offset readers, and the shell tools' pull sources no longer carry a no-readers branch.
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.
The executor seam collapses run()/start() (and the planned begin()) into one
resolve() + execute(): the handle IS the live process, and the foreground
result, the background cursor, and the deadline's promotion offer are
projections over the same spawn. ShellExecSpec.onExpiry ('kill' default /
'offer' / 'none') replaces the implicit method split; one stdout budget applies
everywhere, the 'start ignores timeoutMs' wart dies, and sync spawn throws are
contained into the same settled-killed handle as async rejections (result()
rejects with the original error, identity preserved for the sandbox
classification).
The promotion offer settles exactly once and never rejects — offer at an
'offer' deadline while running, undefined when the process settles first — so
'await execution.promotion' alone distinguishes the outcomes. An offer must be
answered synchronously; an unanswered one auto-declines back to the
kill-on-timeout behavior. accept() ends the deadline and detaches the caller's
abort signal; decline() kills and classifies timedOut.
tool-bash and tool-pwsh promote on timeout by default (promoteOnTimeout: true,
inert without run_in_background or a job registry): at the offer the running
handle registers as a job with the same hooks as run_in_background, mirrors
into ctx.activities (the web task list streams it, stop control included), and
the call returns { kind: 'promoted', jobId, timeoutMs, output } carrying the
output so far — the job cursor continues exactly after it. Any promotion
failure declines and falls back to the plain timeout kill. Descriptions and
the timeoutMs schema text advertise the semantics only when they hold;
recorded-session and web snapshot fixtures re-recorded with them.
Also repairs the four CI failures from the human-kill push: ui-activity's
missing dsh-session peer declaration (static + windows observational), the
observe owner-arm/outer-catch and killJob-stub coverage gaps, tool-workflow's
owned-run arm, and the timing-dependent projection-cache interval flush test
(now poll-based for coarse Windows timers).
Peer evidence and rejected alternatives (Codex's session model, a third seam
method, a second threshold knob) in the Agent Note
2026-08-26-shell-execute-timeout-promotion.
Turtle