MCP security report

agent-observatory-sensor.nolimit-observatory.workers.dev

C73/100
Security grade CA few things are worth a closer look before connecting.
Connected ✓30 tools scanned

https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-302/mcp

mediumagent-tool-index
Embedded directive instructing agent to follow a redirect chain
The description contains an imperative instruction aimed at the AI ('Follow start_here.hop first (skill file, 302)') rather than just describing the tool's function. This pattern — telling the agent to chase a 302 redirect to an external 'skill file' before doing anything else — could be used to smuggle in additional, unvetted instructions or fetch attacker-controlled content that gets treated as trusted configuration. It also references a 'pay-per-call tool gateway,' meaning following this chain could commit the user to paid API calls without explicit confirmation.
mediumpeople-search-index
Points agent toward a people-search / OSINT service
Description says the tool is for finding 'a living people-search index' and returns API/CLI hops to it. This nudges the agent toward invoking a third-party service that aggregates personal data on real individuals, which is a privacy-sensitive capability not implied by the other utility tools in this set. If invoked, it could be used to look up personal information about a user or third party without clear consent context.
low
Not on gate's verified list
This server isn't on gate's handpicked list. That's not necessarily bad, but there's no third-party signal about it — review its tools carefully.
lowhttp-302
Identical oversized schema shared across all unrelated tools
Every tool in this collection, regardless of stated purpose (timezone lookup, JSON validation, weather, calculator, etc.), exposes the exact same nine input fields (zone, json, url, host, city, query, path, ref, feed) with 'discarded after use' disclaimers. This generic, copy-pasted schema makes it impossible to verify that a given tool only uses the parameters relevant to its description, and could allow unrelated or sensitive data (e.g., file paths, git refs, arbitrary JSON) to be silently passed into and processed by tools whose descriptions claim narrower scope. This is a structural pattern worth tightening, as it could mask a confused-deputy style capability mismatch.
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MCP security grade C

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Scanned 9/12/2026 · This is a point-in-time snapshot of the server’s public tools. Re-scan.

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