extract_function_tree
Extract a function and its dependency tree from collected scripts.
This record as markdown: /tools/io-github-vmoranv-jshookmcp/extract-function-tree.md
What extract_function_tree does on Jshookmcp
AI agents call extract_function_tree to retrieve information from Jshookmcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why extract_function_tree is rated Low
Retrieves and analyzes code structure without modifying or executing any code.
From the tool's definition Extract function and dependency tree from collected scripts.
Attacks that exploit this kind of access
The rule that runs extract_function_tree safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Jshookmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For extract_function_tree, this is the rule to start with:
extract_function_tree 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 Jshookmcp, apply this rule, and every extract_function_tree call is checked against it from then on.
Questions about extract_function_tree
Extract a function and its dependency tree from collected scripts. It is categorised as a Read tool in the Jshookmcp MCP Server, which means it retrieves data without modifying state.
Register the Jshook MCP server in PolicyLayer and add a rule for extract_function_tree: 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 Jshookmcp. Nothing to install.
extract_function_tree 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 extract_function_tree 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 extract_function_tree. 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.
extract_function_tree is provided by the Jshook MCP server (@jshookmcp/jshook). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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