ファイル内容の検索を行います
AI agents call search_in_files to retrieve information from Claude MCP Server Integration without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries data from files without modifying, executing, or deleting anything. It is a standard read operation that returns search results. No destructive, financial, or code execution risk is present.
From the tool's definition Tool name 'search_in_files' and description 'searches file contents' (translated from Japanese: 'ファイル内容の検索を行います'). The verb 'search' and the operation of querying file contents are read-only operations with no side effects.
Attacks that exploit this kind of access
ファイル内容の検索を行います. It is categorised as a Read tool in the Claude MCP Server Integration MCP Server, which means it retrieves data without modifying state.
Register the Claude MCP Server Integration MCP server in PolicyLayer and add a rule for search_in_files: 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 Claude MCP Server Integration. Nothing to install.
search_in_files 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 search_in_files 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 search_in_files. 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.
search_in_files is provided by the Claude MCP Server Integration MCP server (mokemoke0821/claude-mcp-integration). 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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