# CompatLab

> Read recorded npm loading evidence across pinned Node.js, Bun and Deno runtimes.

- name: io.github.siddiksawani/compatlab
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 94/100
- quality: 96/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.siddiksawani%2Fcompatlab
- tools: https://api.protogrid.dev/v1/servers/io.github.siddiksawani%2Fcompatlab/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "compatlab": {
      "type": "http",
      "url": "https://compatlab.me/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 99
- freshness: 100
- provenance: 80
- drivers: +repository +namespace-matches-repo +reachable +uptime-98% +updated-11d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 96/100 (strong)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 2 of 2 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 285 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 4 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 2, about 285 tokens to load them all
- tool set hash: f1b2093bc040b11f0578dc0d0ba7a2c9
- tools last changed: 2026-10-13T06:54:00.988Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.siddiksawani/compatlab.svg)](https://protogrid.dev/servers/io.github.siddiksawani/compatlab)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-13 `get_report` changed (outputSchema)
- 2026-10-13 `check_package` changed (outputSchema)
- 2026-10-11 `get_report` changed (outputSchema)
- 2026-10-11 `check_package` changed (outputSchema)

Full history: https://api.protogrid.dev/v1/servers/io.github.siddiksawani%2Fcompatlab/changes

## Remotes

- https://compatlab.me/mcp (streamable-http, auth none, reachable true, uptime30d 0.97727275)

## Packages

_none_

## Tools (2)

- `check_package`: Resolve an exact npm package version (latest when omitted) and read eligible loading evidence across pinned Node.js, Bun and Deno. Never starts a scan. Missing evidence is not failure.
- `get_report`: Read a retained report by UUID with runtime pins, coverage, failures, optional peers and current eligibility. Historical reports remain readable. Never starts a scan.