| Filename | Latest commit message | Latest commit date |
|---|---|---|
Six places in the tree hand-rolled the same connect / write one JSON line / read one JSON line back. Two of them — the harness serve loop's client and the MCP server's — were byte-identical apart from a six-line wrapper, ~145 lines of literal copy-paste. The other four each reimplemented a subset, and the subsets had drifted: some named the socket path in their errors and some did not, one classified transient against fatal failures and the rest retried nothing at all, two drained the response and two decoded it. That duplication was defended when the daemons were split out, on the grounds that a daemon's socket etiquette should stay visible in the crate that depends on it. The etiquette genuinely does differ. The code does not, and five copies is where "each daemon documents its own etiquette" stops paying for itself. `hive-sock-client` now owns the transport once, generic over the request and response types so it is protocol-agnostic: the host-served control socket and the harness's in-agent socket both use it with their own wire-type crates. The two real differences become values instead of forks. Retry is `Retry::RideOutRestart` (2/4/8/16/30s, sized to ride out a service restart) for callers with no natural retry of their own, or `Retry::None` for callers already inside a poll loop where the poll interval is the retry — and the reason each caller picked one is a comment at the call site rather than a reimplementation. The response is either decoded (`request`) or half-closed and drained (`notify`, where the drain exists so the server's write-back doesn't land on a closed socket). Whether a failure propagates or is logged and swallowed stays at the call site, because that is the caller's choice and not a property of the transport. Errors always name the socket path now, everywhere. That detail is load-bearing: a permission problem on a socket that reads as "is the daemon running?" sends the operator to fix the wrong thing. The transient-against-fatal enum is gone rather than moved. Serialising happens before the retry loop and deserialising after it, so only connect, I/O and short-read failures can reach the loop at all — a deterministic failure is now unretryable by construction instead of by classification. It is deliberately a new crate and not part of `hive-agent-sock`. The `*-sock` crates are pure wire types by convention — `hive-agent-sock` depends on serde and nothing else — and the two largest copies talk to the host socket, whose types live in a different crate entirely. A transport in either wire-type crate would drag tokio into it and point the wrong way besides. No wire-format change: same JSON line in, same line out. |
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| .. | ||
| src | ||
| Cargo.toml | ||
| README.md | ||
hive-agent-mcp
The built-in hyperhive MCP server every agent gets by default. Runs a
long-lived streamable-http listener (the hive-mcp-http systemd unit)
that claude reconnects to each turn via --mcp-config — this avoids
the per-turn stdio re-registration race that a spawned-per-turn server
would hit. HTTP is the sole transport; there is no stdio mode here.
When to use it
This is where the core hyperhive tool surface lives: send, recv,
ask/answer, remind, get_loose_ends, set_status,
get_agent_meta, lifecycle (kill/start/restart/update on
direct children), scheduling, and the approval-request tools. Reach
for this crate when you're adding or changing a built-in tool rather
than an extraMcpServers add-on — those are separate stdio bridges
(see hive-bash-mcp, hive-matrix-mcp) that dial the harness socket
or their own daemon instead of living here.
Shape
mcp/— the tool surface itself: one handler per tool, dispatch throughclient.rsback into the hyperhive broker (/run/hive/mcp.sock) or, for loose-ends v2 (todos/reminders), the in-agent socket thehive-agentharness serves.client.rs— socket client to the hyperhive broker.send_allow.rs— enforces the per-agenthyperhive.allowedRecipientsallow-list onsend/ask.paths.rs— socket + state path resolution shared with the harness's ownpaths.rsconventions.
Sibling of hive-agent (the serve loop that renders the
--mcp-config blob pointing here). Standalone bin crate so the
always-on MCP server doesn't need to link the whole turn-loop lib.