This record as markdown: /tools/kh0pper-crow/crow-list-songs.md
What crow_list_songs does on Crow
AI agents call crow_list_songs to retrieve information from Crow without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why crow_list_songs is rated Low
This tool retrieves or queries a list of songs from a songbook without creating, modifying, deleting, or executing any operations. It is a straightforward read-only query that returns data without side effects, fitting the Read category. The severity is low as there is minimal blast radius from misuse—at worst, an AI agent would list songs that are already stored.
From the tool's definition Tool name 'crow_list_songs' and description 'List songs in the songbook' indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
The rule that runs crow_list_songs safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crow, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For crow_list_songs, this is the rule to start with:
crow_list_songs 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 Crow, apply this rule, and every crow_list_songs call is checked against it from then on.
Questions about crow_list_songs
List songs in the songbook. It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.
Register the Crow MCP server in PolicyLayer and add a rule for crow_list_songs: 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 Crow. Nothing to install.
crow_list_songs 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 crow_list_songs 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 crow_list_songs. 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.
crow_list_songs is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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