AI agents call get_snippet to retrieve information from Knocoph without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves specific source code lines from files based on line number parameters. It is a read-only operation that extracts data without creating, modifying, deleting, or executing anything. The narrow scope (specific line ranges) and passive nature (retrieval only) make this a low-severity Read category tool.
From the tool's definition Tool description states 'Return exact source lines from a file' and 'read a function body without loading the whole file'. The verb 'Return' and 'read' indicate retrieval operations with no modification or side effects.
Attacks that exploit this kind of access
Return exact source lines from a file. Use start_line and end_line from find_symbol to read a function body without loading the whole file. It is categorised as a Read tool in the Knocoph MCP Server, which means it retrieves data without modifying state.
Register the Knocoph MCP server in PolicyLayer and add a rule for get_snippet: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Knocoph. Nothing to install.
get_snippet is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_snippet rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_snippet. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_snippet is provided by the Knocoph MCP server (jagonzalr/knocoph). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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