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hyperhive/hive-subagent-mcp
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Filename Latest commit message Latest commit date
atlas 3bef1dfab6 hive-subagent-mcp: refuse an ACP interrupt with no turn in flight
`Canceller::cancel()` does nothing and returns `false` when no ACP turn
is in flight: from `start` until the run's task begins its turn, and
from a turn's end until `after_turn` releases the name. `interrupt`
ignored that return, recorded `Cancelled` and replied that the run was
cancelled, so a non-goal run went on to do its whole first turn while
`status` read as cancelled.

On ACP, `interrupt` now records the stop, cancels, and if nothing was
in flight withdraws the stop under the same `stops` lock, restores the
tracking entry, and refuses with the claude path's "still starting, try
again shortly". The claude arm is unchanged.

Review finding on #4824 (argus).
2026-09-30 07:41:12 +02:00
..
src hive-subagent-mcp: refuse an ACP interrupt with no turn in flight 2026-09-30 07:41:12 +02:00
Cargo.toml hive-subagent-mcp: run an agent's subagents on its runtime 2026-09-30 07:41:12 +02:00
README.md subagent: give each run its own signal URL, and drop the name argument 2026-09-14 22:24:51 +02:00

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 (not InfiniteSession::run, which has no cancel handle to reach in — see the module doc for the v1 scope this trades away), the turn-continuation loop a goal switches 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 via hive_claude::SessionStore).
  • mcp.rs — the rmcp tool routers (the parent's start/continue/status/interrupt on /mcp, the subagent's goal_reached/need_help on /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 the Router is built once at startup and sessions come and go for the daemon's whole life.
  • paths.rs — the in-agent todo-socket path.