tool_search
Search deferred or specialized tools by intent. Use this when the exact tool name is unknown,
This record as markdown: /tools/cowork-os/tool-search.md
What tool_search does on CoWork OS
AI agents call tool_search to retrieve information from CoWork OS without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why tool_search is rated Low
The tool performs discovery and retrieval of tool metadata based on user intent. This is a read-only operation with no side effects, no code execution, and no data modification. The severity is low because misuse would only return information about other tools; it cannot itself perform destructive or dangerous actions.
From the tool's definition Tool description states 'Search deferred or specialized tools by intent' — this is a lookup/query operation that retrieves information about available tools without modifying, executing, or deleting anything.
Attacks that exploit this kind of access
The rule that runs tool_search safely
PolicyLayer is an MCP gateway: it sits between your AI agents and CoWork OS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For tool_search, this is the rule to start with:
tool_search is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect CoWork OS, apply this rule, and every tool_search call is checked against it from then on.
Questions about tool_search
Search deferred or specialized tools by intent. Use this when the exact tool name is unknown,. It is categorised as a Read tool in the CoWork OS MCP Server, which means it retrieves data without modifying state.
Register the CoWork OS MCP server in PolicyLayer and add a rule for tool_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 CoWork OS. Nothing to install.
tool_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 tool_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 tool_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.
tool_search is provided by the CoWork OS MCP server (CoWork-OS/CoWork-OS). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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