mcp-session-expired

Status	404
Title	MCP session expired
Code	mcp-session-expired
Type	https://docs.satellitedata.net/problems/mcp-session-expired

Coming later This problem belongs to the MCP endpoint, which lean v1 does not have yet.

Meaning

The MCP session id is no longer valid.

Likely causes

• The session was idle for more than 30 minutes.

Fix

Call initialize again and use the new Mcp-Session-Id.

Example

The detail is the example from the v1 contract.

{
  "type": "https://docs.satellitedata.net/problems/mcp-session-expired",
  "title": "MCP session expired",
  "status": 404,
  "detail": "Session mcp_5bJ8yQ2nVt expired after 30 minutes idle.",
  "instance": "/v1/...",
  "code": "mcp-session-expired",
  "requestId": "01JQ7Z3M8R5V2W6X9Y0A1B2C3D"
}

See Errors for the members every problem carries.