AI agents call find_text to retrieve information from Tree Sitter without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool performs text search/retrieval operations on code, which is a read-only action with no data modification or command execution. Despite empty description, the naming pattern and server purpose (code analysis) strongly indicate this is a query/search capability. Severity is low because searching code has minimal blast radius—it cannot execute, modify, or delete data.
From the tool's definition Tool name 'find_text' suggests searching/locating text within code; context indicates tree-sitter code analysis server designed for querying codebases. Similar sibling tools like 'find_usage' and 'find_similar_code' are clearly read-only search operations.
Documented attack patterns abuse exactly the kind of access find_text gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Tree Sitter, and nothing reaches the server without passing your rules. This is the rule we recommend for find_text:
{
"version": "1",
"default": "deny",
"tools": {
"find_text": {}
}
}find_text is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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find_text. It is categorised as a Read tool in the Tree Sitter MCP Server, which means it retrieves data without modifying state.
Register the Tree Sitter MCP server in PolicyLayer and add a rule for find_text: 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 Tree Sitter. Nothing to install.
find_text 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 find_text 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 find_text. 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.
find_text is provided by the Tree Sitter MCP server (wrale/mcp-server-tree-sitter). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 26 Tree Sitter tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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26 Tree Sitter tools catalogued and risk-classified — across an index of 42,500+ MCP servers.