MCP missing capability reports
Contents
Missing capability reports show what agents tried to do when your MCP server did not expose a suitable tool. Each report keeps the agent's own description, the MCP client, the person, and the time it was filed.
Enable reports
From your MCP server's project root, run the MCP analytics Wizard command shown on the Missing capabilities tab. The setup agent enables missing capability reporting for you.
To configure it manually, set reportMissing: true when you initialize the PostHog MCP SDK.
This adds a virtual get_more_tools tool that agents can call when the available tools cannot complete a task.
The agent's description is captured as a $mcp_missing_capability event.
Enabling the setting does not create reports by itself.
A report appears only after an agent calls get_more_tools.
Review reports
Open MCP analytics and select Missing capabilities. Reports appear newest first, with the agent's request, client, person, and timestamp.
Use the date range to focus on a period, or search the request text for a capability or workflow. Use the results to decide which tools, actions, or parameters would remove the most important gaps in your server.
Reports can omit the client name when the SDK cannot identify it. Those rows appear as Unknown client instead of being grouped with a known client.