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hyperhive/hive-c0re
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Filename Latest commit message Latest commit date
atlas 65a1f8d902 hive-c0re: bound request lines on the agent and manager sockets 
serve() read each request with read_line into an unbounded String, so
size checks such as the 4 KiB Send body limit ran only after the whole
line was buffered. Any process in an agent container can write to
/run/hive/mcp.sock, and one stream with no newline grew hive-c0re's heap
until the host OOM-killed it.

Read at most 16 MiB per line. The largest request a client sends is an
OperatorMsg from the agent web UI's /send, whose body axum's default
limit caps at 2 MiB (the gateway's nginx admits 10 MiB); JSON escaping
can roughly double that, and the cap is 4x the result. A longer line
gets a Response::Err, the same shape as the parse-error path, and the
connection is closed because the rest of the line is still unread.

The line is read as bytes and parsed with serde_json::from_slice, so a
line with invalid UTF-8 now gets a parse-error response instead of the
connection being dropped.

Closes #4718
2026-09-27 03:48:56 +02:00
..
src hive-c0re: bound request lines on the agent and manager sockets 2026-09-27 03:48:56 +02:00
Cargo.toml log: send records natively to journald, keep stdout off-unit 2026-09-21 15:52:57 +02:00
README.md docs: restructure into topic subdirectories, collapse duplicated index 2026-09-02 01:55:37 +02:00

README.md

hive-c0re

The unprivileged host daemon (runs as hive-core). Owns the sqlite broker, the approval/reminder/schedule queues, the generic job-DAG queue, container lifecycle, gateway/forge/matrix provisioning, per-container stats, and the axum operator dashboard. Largest crate in the workspace — bin-only, no separate lib.

When to use it

Host-level, cross-container orchestration: spawning/rebuilding/ destroying agent containers, the approval flow, dashboard-visible state, provisioning per-agent forge/matrix/gateway accounts. Agent-side behavior (turn loop, MCP tools) lives in hive-agent/hive-agent-mcp instead — this daemon only talks to agents over the socket wire types in hive-sh4re.

Shape

Cohesive clusters live in directory submodules, each re-exported at the crate root (crate::broker::… keeps resolving regardless of which subdirectory a module actually lives in). One line each — read the module's own //! doc-comment for real detail, don't expect this file to track it:

  • dashboard/ — the operator dashboard (containers, approvals, schedules, logs, topology).
  • job_queue/ — the job-DAG queue + desired-state reconciliation (docs/scheduler/coordinator.md).
  • lifecycle/ — nixos-container lifecycle + per-agent config flake generation.
  • stores/ — sqlite-backed stores (broker, queues, audit, power).
  • workers/ — background sweeps (crash watch, scheduled prompts, auto-update, knowledge sync).
  • agent_config/ — per-agent registries (tool groups, capabilities, resource limits, topology).
  • stats/ — dashboard metrics aggregation + OTEL export.
  • socket_server/ — the unix-socket request server shared by per-agent + manager sockets.
  • forge/ — optional Forgejo wiring (docs/integrations/forge.md).
  • coordinator.rs — top-level wiring for serve.
  • meta.rs, migrate.rs — the meta flake + schema/state migrations.
  • matrix.rs, gateway_nginx.rs, webhook_secret.rs, priv_client.rs — matrix provisioning, gateway vhosts, webhook secrets, and the hive-priv client respectively.

See the top-level CLAUDE.md/docs/ index for the full reading-path map.