jschoubben
f04519e3e1
A module has exactly one durable consumer, and each subscribe() started its own reader of it. Two readers split the stream between them, and a reader that receives a message its own pattern does not match acknowledges it — which is the right answer for a filter wider than anything registered, and silent loss when the message was another handler's. The first module to subscribe twice would have dropped roughly half of each kind of event with nothing reporting it. Every registration is now dispatched from one reader, and a message is acknowledged once every handler it is for has taken it.
mesh-tools
The Novox Mesh tool runtime — the per-node process that makes a module's tools actually serve.
A module ships its tools (built on @novox/mesh-sdk); this
runtime is what loads them and puts them on the mesh. It:
- connects the mesh broker (novox/hq ADR 0001) — a concrete AMQP implementation of the sdk's
Brokercontract; - imports the assigned modules' compiled tool entrypoints, each of which registers its tools as it loads;
- serves them through the sdk's
serveToolsharness, answeringtools.invokeover the broker.
Everything hard — dispatch, collection, duplicate-name safety — is the sdk's. This is the thin wrapper that binds the broker and loads the modules. Keeping the AMQP client here, out of the sdk, is deliberate: a broker-client change never rebuilds a module (ADR 0039).
Running it
MESH_BROKER_URL amqp://… the mesh broker
MESH_TOOL_MODULES /a/tools/index.js,… the assigned modules' compiled tool entrypoints
node dist/main.js, or the container (Dockerfile). On a node the host resolves both variables
and starts it like any other supervised workload.
Verified
npm test stands up LavinMQ (the mesh's broker) and proves the whole path over real AMQP: the
runtime serves a registered tool, a separate connection invokes it by name and gets the result, and
an unknown tool is refused over the wire.