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hyperhive/hive-sock-client
Repository files (latest commit first)
Filename Latest commit message Latest commit date
iris 23f4f1823b hive-agent: the per-agent page has no message box; its send route and the broker's operator message are removed
The page's composer (its input, slash commands and completion), POST /send in
hive-agent, the OperatorMsg request of the agent socket and its handler in
hive-c0re, and the broker-error helper only the send route used are deleted:
writing to an agent is the swarm UI's terminal. cancel turn, new session and
log out stay in the state badge's menu; POST /api/compact stays, with nothing
on the page calling it. The request-line limit keeps its size, and its comment
says it is a generous bound now. The docs describe the actions in place of the
footer and the prompt.
2026-11-06 01:13:44 +01:00
..
src hive-agent: the per-agent page has no message box; its send route and the broker's operator message are removed 2026-11-06 01:13:44 +01:00
Cargo.toml retry: share one backon helper for the client secret reads and convert the remaining doubling tables 2026-10-17 12:31:29 +02:00
README.md bound the request line on the host admin and in-agent sockets 2026-10-17 09:09:20 +02:00

hive-sock-client

One JSON-line-over-unix-socket client, shared by every daemon that speaks to a hyperhive socket, plus the bounded request-line reader the socket servers share.

The wire protocol is the same everywhere: connect, write one line of JSON, read one line of JSON back. Before this crate existed, five daemons each carried their own copy of that — two of them byte-identical — and the retry, response-handling and error-context behaviour drifted between them.

The crate is 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.

Shapes

  • request / request_retried — write, then decode the response line. request_retried additionally reports how many retries it took, for callers (MCP tool handlers) that want to tell the model a socket flake happened so it doesn't retry at the LLM level.
  • notify — write, half-close, drain the response line and discard it. For fire-and-forget ops where the reply carries nothing the caller acts on. The drain is not optional: without it the server's write-back lands on a closed socket.

Server side

read_request_line is the one bounded reader for the request line a socket server accepts: at most REQUEST_LINE_MAX_BYTES, with optional LineDeadlines (wait for the first byte, wait for the newline). A server answers RequestLine::refusal() and closes. hive-c0re uses it on the host admin socket and the per-agent sockets; hive-agent on the in-agent socket.

Retry is a policy value, not a fork

Retry::RideOutRestart backs off 2/4/8/16/30s (60s total), sized to ride out a service restart. It is for callers with no natural retry of their own — a stall there costs a surfaced tool error and the tokens to handle it.

Retry::None fails fast. It is for callers already inside a poll loop, where the poll interval is the retry and a second backoff would only stack sleeps and delay the rest of the batch.

Two named policies, not a configurable schedule: nobody needs a third yet, and naming them keeps the reason for the choice at the call site.

Error contract

Errors always name the socket path. 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.

A refused or missing socket additionally gets a "may be restarting" hint, and an exhausted retry schedule records how long it tried, so a surfaced error reads as the likely transient it usually is.

Serialisation and deserialisation failures are never retried — retrying identical bytes reproduces the same failure. They are raised outside the retry loop, so only connect/IO/short-read failures ever reach it.