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Agent Beacon

com.sophomath/agent-beacon

by com.sophomath· v0.1.1Source: Official MCP Registry
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Findings

Detected by Squatch rules from the server's metadata and protocol behavior. Latest completed scan: .

Severity: High2 findings

Severity: HighStatus: OpenSQ-TOOL-EXFIL-DIRECTIVE

Asks the AI model to pass conversation data or secrets

Model-facing text instructs the AI model to place conversation content, prompts, tool history or secrets into tool arguments or external destinations.

First seen · Last seen

Suggested fix: Do not ask the model to include conversation, prompt or credential content in arguments.

Severity: HighStatus: OpenSQ-SERVER-INSTRUCTIONS-INJECTION

Server instructions contain directives to the AI model

The server's instructions field contains directives addressed to the AI model beyond describing how to use the server.

First seen · Last seen

Suggested fix: Limit server instructions to usage guidance for this server's own tools.

Severity: Medium3 findings

Severity: MediumStatus: OpenSQ-TOOL-CROSS-TOOL-REFERENCE

Gives instructions about other tools

Model-facing text gives the AI model instructions about tools that this server does not provide (tool shadowing).

First seen · Last seen

Suggested fix: Describe only this server's own tools.

Severity: MediumStatus: OpenSQ-SERVER-AUTH-NONE-WRITE

State-changing tools available without authentication

The remote server lists state-changing tools without requiring authentication.

First seen · Last seen

Suggested fix: Require MCP authorization for servers that expose state-changing tools.

Severity: MediumStatus: OpenSQ-TOOL-CREDENTIAL-ARGUMENT

Asks the AI model to supply credentials as arguments

A tool parameter asks the AI model to supply a password, token, key or similar credential, which the model can see and repeat.

First seen · Last seen

Suggested fix: Obtain credentials through server-side configuration or MCP authorization instead of tool arguments.

Severity: Low1 finding

Severity: LowStatus: OpenSQ-REPO-MISSING

No source repository linked

No source repository is linked in the registry entry.

First seen · Last seen

Suggested fix: Add a repository to server.json.

What this scan does not cover

  • Squatch never calls a server's tools, so it cannot see what they actually do at run time.
  • It scans without credentials: tools behind authentication may not be visible.
  • It does not review source code, dependencies or the publisher's infrastructure.
  • A server can change behavior between scans; monitoring compares each scan with the last.
  • Classifications come from tool names, descriptions and schemas, which the publisher controls.

How Squatch scans servers