AI agents call songs_by_gap to retrieve information from Mcp Phish without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Despite empty description, the name pattern, server purpose (querying Phish setlists/songs/reviews), and sibling tools all point to data retrieval with no side effects. No data modification, deletion, execution, or financial transaction capability is evident. Confidence is moderate due to missing description, but low severity applies as read operations pose minimal risk.
From the tool's definition Tool name 'songs_by_gap' and server context indicate retrieval of song data; sibling tools like 'get_song', 'get_show', 'search_shows' are all read-only queries against Phish concert/song databases.
Attacks that exploit this kind of access
songs_by_gap. It is categorised as a Read tool in the Mcp Phish MCP Server, which means it retrieves data without modifying state.
Register the Mcp Phish MCP server in PolicyLayer and add a rule for songs_by_gap: 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 Mcp Phish. Nothing to install.
songs_by_gap 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 songs_by_gap 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 songs_by_gap. 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.
songs_by_gap is provided by the Mcp Phish MCP server (pete-builds/mcp-phish). 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.
Teams ship this data inside their own products. See what a licence covers →