AI agents call list_specs to retrieve information from Spec Kit without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays specifications with optional filtering—a classic read-only operation. It has no side effects, does not execute code, does not modify data, and does not delete anything. The blast radius of misuse is minimal; an agent could only over-query or list specifications it shouldn't see, which is a data exposure risk at most. Severity is low because it is informational only.
From the tool's definition Tool name is 'list_specs' and description states 'List all specifications with filtering'. This is a querying/listing operation with no modification or execution of code.
Attacks that exploit this kind of access
List all specifications with filtering. It is categorised as a Read tool in the Spec Kit MCP Server, which means it retrieves data without modifying state.
Register the Spec Kit MCP server in PolicyLayer and add a rule for list_specs: 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 Spec Kit. Nothing to install.
list_specs 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 list_specs 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 list_specs. 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.
list_specs is provided by the Spec Kit MCP server (@fast-kit/spec-kit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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