fabro/docs/public/api-reference
Bryan Helmkamp ff7821dcd2
Adopt pebble's MCP disconnect event and startup timing
Pebble reports an MCP server whose connection closed mid-session once,
as McpServerDisconnected, and carries startup_ms on McpServerReady and
McpServerFailed. The workflow event sink mirrors the disconnect onto a
new agent.mcp.disconnected run event shaped like agent.mcp.failed, and
passes startup_ms through on agent.mcp.ready and agent.mcp.failed. The
raw pebble event is not stored for these, so the timing would otherwise
be dropped at the boundary.

The stage projection's McpServerStatus gains a `disconnected` kind next
to `ready` and `failed`. The fold keeps the server's tool count and
sticky invoked flag and only moves the status. The OpenAPI
McpServerStatus oneOf gains McpServerStatusDisconnected, and the
fabro-api round-trip test covers its JSON shape. A new
session_projection_parity test folds the same MCP events through
pebble's SessionProjection and fabro's stage projection and compares
them, including pebble's `disconnected`.

ToolErrorKind::Timeout needs no fabro change: the kind is stored as
pebble serializes it and never matched.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-12 12:39:31 -06:00
..
client-sdks.mdx refactor: organize crates into three layers 2026-07-23 17:59:34 -04:00
fabro-api.yaml Adopt pebble's MCP disconnect event and startup timing 2026-09-12 12:39:31 -06:00
overview.mdx docs: refresh product documentation 2026-08-24 09:53:09 -04:00