test(e2e): quarantine uvx arxiv test broken by Python mcp 2.0.0 - #6109
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arxiv-mcp-server's unbounded mcp>=1.27.0 now resolves the mcp 2.0.0 major released today and crashes at import, failing the mcp-protocol shard for every PR regardless of its diff. The official reference servers are equally unbounded and equally broken, so no swap-in target exists. Skip with a pointer to #6108 until upstream bounds its dependency or the uvx builder grows constraint support. Refs #6108 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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July 28, 2026 14:52
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Jul 28, 2026
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #6109 +/- ##
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- Coverage 72.43% 72.42% -0.01%
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Files 734 734
Lines 75871 75871
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- Hits 54955 54953 -2
- Misses 17025 17028 +3
+ Partials 3891 3890 -1 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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Fixes the repo-wide
E2E Tests Core (mcp-protocol)failure diagnosed in #6108: Pythonmcp2.0.0 (released today 13:45Z) breaksarxiv-mcp-serverat import via its unboundedmcp>=1.27.0, so every freshuvxbuild crashes and the proxy port refuses connections — deterministically, on every PR.This skips the one affected test with a full rationale comment and a pointer to #6108. Verified there is no safe swap-in target: the official reference servers (
mcp-server-fetch/-time/-git) carry equally unboundedmcp>=constraints and import-crash identically under 2.0.0 (reproduced in clean venvs).Durable options (tracked in #6108, deliberately not decided here):
uv tool install --with/--constraints),mcp<2in the affected packages.Unskip when any of those lands.
Refs #6108
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