Search files with compressed results — runs ripgrep and filters output through fullscope to save tokens. Use instead of Grep/Bash for exploratory searches where you need to scan many results. For precise searches where you need exact line content, use the built-in Grep tool.
AI agents call fullscope_search to retrieve information from Mcp Agent Opt without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs read-only file searching with output compression. It retrieves and returns data without creating, modifying, deleting, or executing operations. While it uses ripgrep internally, the tool itself is a search utility that only reads and filters results. No side effects or state changes occur from using it.
From the tool's definition Tool description states it 'runs ripgrep and filters output through fullscope' for 'exploratory searches' and explicitly recommends using 'built-in Grep tool' for exact line content.
Attacks that exploit this kind of access
Search files with compressed results — runs ripgrep and filters output through fullscope to save tokens. Use instead of Grep/Bash for exploratory searches where you need to scan many results. For precise searches where you need exact line content, use the built-in Grep tool. It is categorised as a Read tool in the Mcp Agent Opt MCP Server, which means it retrieves data without modifying state.
Register the Mcp Agent Opt MCP server in PolicyLayer and add a rule for fullscope_search: 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 Mcp Agent Opt. Nothing to install.
fullscope_search 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 fullscope_search 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 fullscope_search. 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.
fullscope_search is provided by the Mcp Agent Opt MCP server (justguy/fullscope-mcp). 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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