Devframe

DF0051: Instance Has No MCP Endpoint

The devframe instance on port {port} has no MCP endpoint.

Message

The devframe instance on port {port} has no MCP endpoint.

Cause

The devframe connect gateway tool devframe_connect_call-tool targeted a live instance running without an MCP route: its __connection.json advertises no mcp entry, so there is no endpoint to proxy the tool call to.

Example

// The instance on 5173 was started without --mcp:
// devframe_connect_call-tool({ port: 5173, tool: 'devframe_state_read' }) → DF0051

Fix

Restart the instance with the --mcp flag (or pass mcp: true to createCac / its programmatic host) to expose its tools, then list instances again.

Source

DF0050: No Devframe Instance on Port

No running devframe instance on port {port}.

DF0052: HTTP Server Failed to Listen

Failed to listen on {host}:{port}: {reason}