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fix: redact MCP prompt and resource transport errors - #4067

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seratch merged 4 commits into
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fix/mcp-prompt-resource-error-redaction
Jul 31, 2026
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fix: redact MCP prompt and resource transport errors#4067
seratch merged 4 commits into
mainfrom
fix/mcp-prompt-resource-error-redaction

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@seratch seratch commented Jul 31, 2026

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This pull request fixes credential retention when MCP prompt and resource requests fail with HTTPX transport errors. It routes list_prompts(), get_prompt(), list_resources(), list_resource_templates(), and read_resource() through a shared sanitizer that removes unsafe URL-bearing exceptions from the raised exception graph while preserving credential-free failures.

It adds regression coverage for direct request errors, HTTP status errors, nested exception groups, traceback locals, request attributes, and both logging modes.

@seratch seratch added this to the 0.19.x milestone Jul 31, 2026

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@seratch
seratch force-pushed the fix/mcp-prompt-resource-error-redaction branch from de7a2d6 to eb03cc0 Compare July 31, 2026 13:13

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@seratch
seratch enabled auto-merge (squash) July 31, 2026 13:53
@seratch
seratch merged commit c3f1781 into main Jul 31, 2026
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@seratch
seratch deleted the fix/mcp-prompt-resource-error-redaction branch July 31, 2026 13:56
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