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🐛 Fix MCP session discovery for plugins connected from the dashboard (#12865 )

* 🐛 Fix MCP session discovery for plugins connected from the dashboard

With Redis-backed routing, execute_code without a sessionId timed out
with SessionDiscoveryError when the plugin ran on the dashboard. The
discovery reply schema required a string fileId and fileName, so replies
listing a session with no open file were dropped, and discovery waited
for its timeout.

Share one session schema between the plugin handshake and discovery
replies. It accepts a null file and keeps workspaceState. An unreadable
reply now fails discovery at once with an error that names the problem
and says a retry will not help. Timeout and Redis failures state their
reason.

Closes #12860

* 🐛 Stop blaming server load when MCP discovery fails on shutdown

Closing the dispatcher rejected pending discoveries with the default advice,
which blamed temporary server load. Shutdown now gives its own advice.

The dispatcher tests now cover each discovery failure path: an unreadable
reply alongside a valid one rejects with InvalidDiscoveryResponseError and
does not dispatch, a late unreadable reply leaves a settled discovery
unchanged, and timeout, Redis failure and shutdown each state their reason.

2026-11-11 12:10:34 +01:00

data

🐛 Fix plugin component lookups for missing and deleted components (#12755 )

2026-11-11 09:39:04 +01:00

scripts

⬆️ Upgrade MCP SDK to v2, removing SSE support and HTTP session management (#11841 )

2026-09-23 15:07:19 +02:00

src

🐛 Fix MCP session discovery for plugins connected from the dashboard (#12865 )

2026-11-11 12:10:34 +01:00

.gitignore

⏪ Backport MCP from staging (part 1)