Searches the workspace for source files that likely define or render the selected UI element. Returns ranked candidates with file paths, line ranges, confidence scores, and match reasons. Can work with live Chrome selections or stored thread element_context.
AI agents call find_source_for_selection to retrieve information from Yocoolab without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
find_source_for_selection performs a read-only search across workspace files to locate and return information about source code candidates. It has no side effects, does not execute code, does not modify files, and does not delete data. The operation is purely informational retrieval, fitting the 'Read' category.
From the tool's definition Tool 'Searches the workspace for source files' and 'Returns ranked candidates with file paths, line ranges, confidence scores, and match reasons' — this is a search/query operation that retrieves information about source code structure without modifying,…
Attacks that exploit this kind of access
Searches the workspace for source files that likely define or render the selected UI element. Returns ranked candidates with file paths, line ranges, confidence scores, and match reasons. Can work with live Chrome selections or stored thread element_context. It is categorised as a Read tool in the Yocoolab MCP Server, which means it retrieves data without modifying state.
Register the Yocoolab MCP server in PolicyLayer and add a rule for find_source_for_selection: 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 Yocoolab. Nothing to install.
find_source_for_selection 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_source_for_selection 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_source_for_selection. 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_source_for_selection is provided by the Yocoolab MCP server (yocoolab/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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