| Filename | Latest commit message | Latest commit date |
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b31db6c7d9
hive-subagent-daemon and hive-bash-daemon are now delegated their cgroup (Delegate=memory pids, DelegateSubgroup=daemon). At start each daemon enables memory+pids below its unit and creates runs/ (subagent) or tasks/ (bash). Each subagent run gets runs/<name>-<n>/ and each bash task tasks/<id>/, both with memory.oom.group=1, and the daemon removes the directory when the run ends. An OOM kill now takes one whole run instead of one process out of the daemon's shared cgroup, and never the daemon itself. Subagent runs get oom_score_adj +1000; bash tasks and both daemons stay at 0; the harness stays at -500. The unit-level OOMScoreAdjust=500 on the subagent daemon goes: it was both the daemon's own score and a floor no run below it could be lowered past. Bash tasks enter their cgroup from the existing pre_exec hook, writing to a cgroup.procs fd opened by the parent. hive-claude builds its Command itself and exposes neither a pre_exec hook nor the child's pid, so a subagent's claude (and an ACP agent's process) is started as the daemon's own binary with the run's cgroup in its environment; main() enters the cgroup, raises oom_score_adj and execs the real program, the trampoline swarm-review-classifier already uses. Both enter before the program executes, so nothing it forks starts outside the run's cgroup. Without a delegated `daemon` leaf (tests, a dev shell) each daemon logs one warning and runs everything in its own cgroup, as before. The shared helper is hive-agent-sock's run_cgroup module, the crate both daemons already use for what in-container plugins share. Closes #5007 |
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| .. | ||
| src | ||
| tests | ||
| Cargo.toml | ||
| README.md | ||
hive-subagent-mcp
Per-agent daemon (hive-subagent-daemon) that spawns nested headless
claude sessions on request and serves the tool surface
(start/continue/status/interrupt, plus a separate
subagent-facing goal_reached/need_help route, one per-session URL)
directly over streamable-http. No stdio bridge, no per-turn respawn — an
agent's claude reconnects to the same stable URL every turn.
Independent of hive-bash-mcp — a subagent spawns a full nested
claude session, a much heavier capability than a bash command, worth
its own deployable/restartable unit.
Shape
One bin (hive-subagent-daemon, src/main.rs) built from the crate's
own lib (src/lib.rs):
session.rs— the actual claude-facing logic:Claude::spawn+RunningClaude::wait/cancel_handle(notInfiniteSession::run, which has no cancel handle to reach in — see the module doc for the v1 scope this trades away), the turn-continuation loop agoalswitches on, and the in-memory maps that are the only state this daemon keeps (no task files — a restart stops whatever's running; the actual claude session is the durable store, found again by name viahive_claude::SessionStore).mcp.rs— thermcptool routers (the parent'sstart/continue/status/interrupton/mcp, the subagent'sgoal_reached/need_helpon/signal/mcp/<token>) +serve_http. Neither signal tool takes a session name: the token in the path is minted per run and resolved to a session before dispatch, so a subagent has no way to name — and therefore no way to signal — a sibling. One route with a path parameter, because theRouteris built once at startup and sessions come and go for the daemon's whole life.paths.rs— the in-agent todo-socket path.