When calculating app target, attempt to autodetect from advertised capabilities if not specified in url

[andrewmcgivery]

When calculating app target, attempt to autodetect from advertised capabilities if not specified in url.

Note this PR also updated rmcp to latest (0.14 -> 0.16)

Changelogs:

• https://github.com/modelcontextprotocol/rust-sdk/releases/tag/rmcp-v0.15.0
• https://github.com/modelcontextprotocol/rust-sdk/releases/tag/rmcp-v0.16.0

[apollo-librarian]

✅ Docs preview has no changes

The preview was not built because there were no changes.

Build ID: 634494c18d5ef97d1cdef995
Build Logs: View logs

[github-actions]

⏭️ Changeset check skipped via label

[andrewmcgivery]

Just noting here that I will be creating a Jira task for this for a follow up PR.

[claude]

Review Summary

This PR adds MCP app capability auto-detection when the app target is not explicitly specified in the URL. The implementation updates from rmcp 0.14 to 0.16 and introduces a new capability detection mechanism. The changes are well-structured with good test coverage for the new behavior.

Findings

Code Quality (Minor)

• Test code allocations: The new tests in app.rs:250 and running.rs:880-881 contain .clone() calls on test data that could be avoided with restructuring, though the performance impact in tests is negligible (Chapter 3.2).
• Test naming: The test test_app_target_missing_with_mcp_app_capability_defaults_to_mcp_apps (81 chars) would benefit from module organization per Chapter 5.1 best practices, e.g., mod app_target_missing { fn with_mcp_app_capability_defaults_to_mcp_apps() {} }.

Test Coverage Assessment

✅ Excellent test coverage - The PR includes comprehensive tests for:

• New capability detection logic (has_mcp_app_support)
• Integration with existing app target detection
• Both positive and negative test cases
• All existing tests updated to accommodate API changes

Final Recommendation

Approve with suggestions - The implementation is solid and well-tested. The minor suggestions around test organization and allocations are optional improvements that don't impact correctness.

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Reviewed by Claude Code Sonnet 4.5

[DaleSeo]

LGTM! Thanks for the upgrade!