# Perimeter Watch

> Passive domain-perimeter checks — cert expiry, subdomain takeover, lookalikes — as agent tools

- name: io.github.entradox/perimeter-watch-scanner
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 94/100
- quality: 82/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.entradox%2Fperimeter-watch-scanner
- tools: https://api.protogrid.dev/v1/servers/io.github.entradox%2Fperimeter-watch-scanner/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "perimeter-watch-scanner": {
      "type": "http",
      "url": "https://perimeter-watch-api-production.up.railway.app/mcp/"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 85
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-99% ~updated-47d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 82/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### 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: 79 (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
- warn `tools.annotations`: only 4 of 6 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: pw_health (openWorldHint); pw_stats (openWorldHint); read_skill (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 616 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`: no 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: 6, about 616 tokens to load them all
- tool set hash: d2f0d97d5edbce805bf7f840c30fd430
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.entradox/perimeter-watch-scanner.svg)](https://protogrid.dev/servers/io.github.entradox/perimeter-watch-scanner)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://perimeter-watch-api-production.up.railway.app/mcp/ (streamable-http, auth none, reachable true, uptime30d 0.99159664)

## Packages

_none_

## Tools (6)

- `pw_health`: Liveness check for the Perimeter Watch API. Returns ok, service, version. Call first to verify connectivity before pw_snapshot.
- `pw_snapshot`: Run a free one-time external-perimeter scan on a domain you control.

Checks TLS certificate expiry, domain renewal status, dangling CNAME
takeover risk, and CT-log lookalike domains. Returns a rating plus
per-check detail. NOT idempotent (each call consumes rate limit);
takes 20-60s; rate-limited to 3 scans per IP per 24h.

Args:
    domain: the domain to scan (e.g. example.com)
    authority: MUST be true — attests you or your principal own/manage
        this domain. Scanning third-party domains without authority is
        prohibited. Scan takes 20-60s. Rate limit: 3/IP/24h.

- `pw_stats`: Service funnel counters: page views, snapshots run, paid registrations. Read-only.
- `pw_watch_status`: Check whether a domain is enrolled on a paid weekly monitoring plan.

Returns enrollment status. Paid plans add weekly re-scans with email
briefs. Read-only lookup.

Args:
    domain: the domain to look up (e.g. example.com)

- `read_skill`: Read a product skill file by its skill:// URI.

Args:
    uri: e.g. skill://<product>/<skill-name>/SKILL.md
         Get valid URIs from `skills_list_tool`.

- `skills_list_tool`: List this product's skills. Each entry carries the SKILL.md URI,
its name and description, verbatim frontmatter, and a per-file
sha256 manifest. Read a body with `read_skill`.