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Behind BOITE_KEEPER=1. Protocol v2 adds pipe processes with acked stdout (8 MiB window) and a stderr tail. A session's agent process becomes a KeptChild; its kept_processes row (schema 49) gets the read offset in the transaction that commits the streamed parts, and the keeper is acked after that commit.
…ile connecting A stop and a new session in the same millisecond no longer kill the new one; close waits for the readers' end so a last unterminated record is parsed; a launch goes to the keeper only when connected; a stopping core releases its kept agents so the keeper exits.
… refresh bench numbers
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November 7, 2026 22:42
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Inline comments:
In `@packages/core/src/drivers/echo.ts`:
- Around lines 305 - 308: Return early when `state.stopped` in the agent branch of `writeText` and in the `process`/`flood` cases, and make `delta` drop chunks after a stop.
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Note Head This pull request runs each thread's agent session process inside the keeper when Comments posted: no critical or major finding. 1 minor in the review. Review details
Commands run (11)Ran keeper-agents suite: 7 pass (echo turn via keeper, window ack commits, unreachable keeper fallback, leftover cleanup, millisecond restart, post-close start, kept-child close). Ran keeper suite: 9 pass (shell survival, close/stop, dropped core, job group, mid-start close, ring bytes, frame limit, token). Ran failed · exit 141 · 0 s ls -R /work | head -n 100; echo ---; cat /work/package.json | head -n 80; echo ---; cat /work/docs/development.md | head -n 150passed · exit 0 · 0 s cat /work/package.json; echo ===CORE_PKG===; cat /work/packages/core/package.jsonpassed · exit 0 · 0 s bun --version; ls /work/packages/core/test/keeper-agents.test.ts; cat /work/packages/core/bin/test.tspassed · exit 0 · 5 s bun install --frozen-lockfile 2>&1 | tail -n 20passed · exit 0 · 10 s bun test test/keeper-agents.test.ts --timeout 60000 2>&1 | tail -n 40
echo "EXIT:$?"passed · exit 0 · 14 s ls test/*.test.ts | head -n 50; echo ---; bun test test/keeper.test.ts --timeout 60000 2>&1 | tail -n 30; echo "EXIT:$?"failed · exit 2 · 0 s pwd; ls; echo ---; ls packages/core/test/*.test.ts 2>&1 | head -n 50; echo ---; ls test/ 2>&1 | head -n 20failed · exit 141 · 0 s ls packages/core/test/*echo* packages/core/test/*journal* packages/core/test/*procs* packages/core/test/*keeper* packages/core/test/*turn* 2>&1; echo ---; cat docs/development.md | head -n 200passed · exit 0 · 0 s ls packages/core/test/ | grep -E 'echo|journal|procs|keeper|turn|stream|pi-|codex|claude|acp|stdio' | head -n 60; echo EXIT:$?passed · exit 0 · 0 s cat packages/core/package.json | head -n 30; echo ===; ls bench/keeper-agent.ts; head -n 80 bench/keeper-agent.tspassed · exit 0 · 11 s bun run --cwd packages/core check 2>&1 | tail -n 20; echo "EXIT:$?" |
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Note
Clanker Claude Opus 5.5 is responding on behalf of meetsu
With the keeper switched on, a thread's agent process now runs inside the keeper, and the app records how much of its output is safely saved, so a later step can take a turn back after a restart.
Continues #976 (step 2 of the agent keeper). Off by default, behind
BOITE_KEEPER=1; a restart still ends turns.what changed
keeper/pipe-process.ts).KeptChild, the node child shape drivers and the Claude SDK read (keeper/kept-child.ts).threads/turn-context.ts,procs.ts).kept_processes; its offset is written in the streamed parts' commit, and the keeper is acked after it (keeper/kept-agents.ts,journal/stream-buffer.ts).keeper.agent-directwarning per outage.[process]and[flood:N], which stream the turn through a child (drivers/echo-agent.ts).to question
Acks ride the 500 ms persist transaction, not the 16 ms delta flush: the flush only moves text into memory, so acking there could let the keeper drop bytes whose events are not on disk.
Bundle size
coreJavaScript grows 14,427 bytes (0.29 %): the keeper's pipe processes,
KeptChild, the offset ledger, thekept_processestable and the echo child, all core code loaded only with the keeper on or an echo[process]turn. coreBundle grows 96 bytes (0.80 %) for the--echo-agententry of the bundle.verified
bun test test/keeper-agents.test.ts: 7 pass; the echo turn test fails when the launch is not markedkeep, and the three tests the review added fail on the previous head.bun test test/echo.test.ts -t 'stopped \[process\]': a stopped[process]turn emits 0 deltas after the stop, 27 on the previous head.BOITE_KEEPER=1on the keeper, pi, Codex, Muse, ACP, stdio and echo suites: 350 pass.bun run checkpasses.BOITE_KEEPER=1 bun bench/keeper-agent.ts 64 20, Linux, Bun 1.4.2, 2026-11-07:--echo-agent, real Claude and Codex logins through the keeper, a keeper killed mid-turn.