7a9d719877
packages/mcp stays free of prom-client/server: it only calls an optional
DocmostMcpConfig.onMetric(name, value, labels?) sink the host provides.
- client.ts: onMetric on the config; fires collab_connect_timeouts_total
once, only inside the 25s connect-timeout callback (the connect-vs-unload
signal). cleanup() clears the timer on every other finish path, so no
double-count.
- index.ts: createDocmostMcpServer monkeypatches server.registerTool (before
registerShared + inline tools are registered) to wrap every handler with
timeToolHandler — times in a finally on success AND throw, re-throws
unchanged, emits mcp_tool_duration_seconds{tool=<registered name>} (bounded
cardinality). Single choke point catches all tools.
- mcp.service.ts: the per-request config resolver injects onMetric ONLY when
isMetricsEnabled(), routing mcp_tool_duration_seconds -> observeMcpTool and
collab_connect_timeouts_total -> incConnectTimeout. Disabled / standalone
(stdio, no onMetric) -> undefined -> zero-overhead no-op.
New node:test unit (tool-timing.test.mjs) covers the wrapper's value/throw
preservation and the standalone no-op. packages/mcp/build/ is gitignored,
not committed (CI rebuilds it).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
A progressive Node.js framework for building efficient and scalable server-side applications.
Description
Nest framework TypeScript starter repository.
Installation
$ npm install
Running the app
# development
$ npm run start
# watch mode
$ npm run start:dev
# production mode
$ npm run start:prod
Migrations
# This creates a new empty migration file named 'init'
$ npm run migration:create --name=init
# Generates 'init' migration file from existing entities to update the database schema
$ npm run migration:generate --name=init
# Runs all pending migrations to update the database schema
$ npm run migration:run
# Reverts the last executed migration
$ npm run migration:revert
# Reverts all migrations
$ npm run migration:revert
# Shows the list of executed and pending migrations
$ npm run migration:show
## Test
```bash
# unit tests
$ npm run test
# e2e tests
$ npm run test:e2e
# test coverage
$ npm run test:cov
Support
Nest is an MIT-licensed open source project. It can grow thanks to the sponsors and support by the amazing backers. If you'd like to join them, please read more here.
Stay in touch
- Author - Kamil Myśliwiec
- Website - https://nestjs.com
- Twitter - @nestframework
License
Nest is MIT licensed.