AI agents call get_stdlib to retrieve information from Jane without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns existing documentation without creating, modifying, deleting, executing code, or moving money. It is a simple data retrieval operation with no side effects, fitting the Read category. Severity is low because standard library documentation is typically public information with no sensitive data exposure or operational risk.
From the tool's definition Tool name 'get_stdlib' and description 'Retrieve a standard library document for a specific language' indicate a retrieval operation with no modification capability.
Attacks that exploit this kind of access
Retrieve a standard library document for a specific language. It is categorised as a Read tool in the Jane MCP Server, which means it retrieves data without modifying state.
Register the Jane MCP server in PolicyLayer and add a rule for get_stdlib: 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 Jane. Nothing to install.
get_stdlib 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_stdlib 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_stdlib. 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_stdlib is provided by the Jane MCP server (quinncuatro/jane-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_stdlib is one line of Jane's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →