Extract all import and require statements from a JavaScript file, with line numbers. Use this to inspect dependencies before adding or modifying imports. Only works within allowed directories.
AI agents call get_js_imports to retrieve information from FilesystemMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes JavaScript import/require statements from files within allowed directories. It has no side effects, does not modify data, and does not execute code. The operation is purely informational inspection, characteristic of a Read category tool. The low severity reflects the minimal security risk from extracting metadata about file dependencies.
From the tool's definition Tool name 'get_js_imports' and description 'Extract all import and require statements from a JavaScript file' indicates read-only inspection of file contents. The phrase 'inspect dependencies' confirms the tool queries existing data without modification.
Attacks that exploit this kind of access
Extract all import and require statements from a JavaScript file, with line numbers. Use this to inspect dependencies before adding or modifying imports. Only works within allowed directories. It is categorised as a Read tool in the FilesystemMCP MCP Server, which means it retrieves data without modifying state.
Register the Filesystem MCP server in PolicyLayer and add a rule for get_js_imports: 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 FilesystemMCP. Nothing to install.
get_js_imports 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 get_js_imports 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 get_js_imports. 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.
get_js_imports is provided by the Filesystem MCP server (rijadalisic/filesystemmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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