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MCP lazy import partial binding bug fix

Cluster 96528 · mcp. Data as of

3 open items. Fix attempted, not merged.

The short answer

1open issue
2open PRs
3items grouped
Known?
Yes. 3 related items grouped here, 0 issues already closed.
Fix event
No fix has been merged to main. see the attempts below.
Tracker
The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open
1 issue and 2 PRs.

A bug where lazy import guards returned True without fully binding MCP SDK symbols caused NameError failures in stdio servers. These members address detecting and correcting partial symbol binding during MCP imports.

Open issues1

  • Issue#96528[Bug]: MCP stdio servers fail with NameError: StdioServerParameters not defined (lazy import guard returns True without binding symbol)

Open PRs2

  • PR#96541fix(mcp): keep stdio servers available after partial lazy import
  • PR#96556fix(mcp): re-import SDK when symbols are only partially bound
How this cluster was grouped
  • Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
  • Pairwise link density 0.67: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. 1.00 means every pair is linked.

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At a glance

Subsystem
mcp
Closed issues
0
Attempts
0 PRs closed without merging

For your agent

The same facts, typed.

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