fix(mcp): infer Codex URL-only MCP transport

[xpfo-go]

Summary

• Infer Codex MCP entries with a URL but no explicit type as SSE instead of stdio
• Preserve the existing stdio default for entries without a URL
• Add a regression test for importing a Codex URL-only MCP server such as the PyCharm /stream config

Fixes #2492

Test Plan

• git diff --check
• cargo fmt --manifest-path src-tauri/Cargo.toml --check
• cargo test --manifest-path src-tauri/Cargo.toml --test import_export_sync

[DaveRoey96]

@codex review

[chatgpt-codex-connector]

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[farion1231]

@codex review
@claude review

[claude]

Claude finished @farion1231's task in 1m 1s —— View job

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Code Review

LGTM. The change is small, focused, and correctly addresses the import failure for URL-only Codex MCP entries.

Behavior summary

• infer_codex_mcp_type in src-tauri/src/mcp/codex.rs:271-285 preserves the explicit type when present, defaults to sse only when a non-empty url is set, and otherwise keeps the previous stdio default — so existing configs are unaffected.
• The http/sse branch in the import loop (codex.rs:120-141) already knew how to extract url and http_headers, so the inferred sse path slots in cleanly with no further changes needed.
• The new test at src-tauri/tests/import_export_sync.rs:610-642 reproduces the PyCharm /stream case from Codex importer should treat url MCP config as HTTP/SSE transport instead of defaulting to stdio. #2492 and asserts both the inferred type and round-tripped url. Validation at src-tauri/src/mcp/validation.rs:42-49 accepts sse with a non-empty URL, so the entry now passes instead of being rejected.

Notes (non-blocking)

• Defaulting to sse rather than http is a judgment call. Either would have unblocked the import; sse matches the legacy Codex convention and the /stream URL shape, so this is defensible. Users can still adjust via the UI after import.

No blocking issues.

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• Read the PR diff against origin/main
• Inspect src-tauri/src/mcp/codex.rs changes
• Inspect src-tauri/tests/import_export_sync.rs changes
• Check related code paths (validation, round-trip export)
• Post final review
  · branch fix/2492-codex-mcp-url-import

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Already looking forward to the next diff.

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