fix(patch): cherry-pick a8b4c38 to release/v0.27.0-pr-18161 to patch version v0.27.0 and create version 0.27.1

[gemini-cli-robot]

This PR automatically cherry-picks commit a8b4c38 to patch version v0.27.0 in the stable release to create version 0.27.1.

[gemini-code-assist]

Summary of Changes

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This pull request integrates enhanced telemetry logging for numerical model routing decisions. It refines the metadata associated with routing outcomes by explicitly naming the 'NumericalClassifier' as the source and introduces new telemetry fields to capture granular details such as the reasoning behind a routing decision, the enablement status of numerical routing, and the specific classifier threshold applied. These changes improve the observability and debugging capabilities for model routing within the system.

Highlights

• Telemetry Enhancement: Introduced new telemetry keys and logging logic to capture detailed information about numerical model routing decisions, including reasoning, whether numerical routing was enabled, and the classifier threshold used.
• Metadata Renaming: Updated the 'source' metadata field from 'Classifier' to 'NumericalClassifier' in the NumericalClassifierStrategy implementation and its corresponding tests for clarity and specificity.
• Test Coverage: Added new unit tests to ensure that the enhanced telemetry logging for numerical routing events functions as expected.

Changelog

• packages/core/src/routing/strategies/numericalClassifierStrategy.test.ts
  • Updated test assertions to reflect the NumericalClassifier source in routing metadata.
• packages/core/src/routing/strategies/numericalClassifierStrategy.ts
  • Changed the source metadata field from 'Classifier' to 'NumericalClassifier' for routing decisions.
• packages/core/src/telemetry/clearcut-logger/clearcut-logger.test.ts
  • Added a new test case to verify logging of numerical routing fields in ModelRoutingEvent.
• packages/core/src/telemetry/clearcut-logger/clearcut-logger.ts
  • Implemented logic to log numerical routing reasoning, enablement status, and classifier threshold as part of ModelRoutingEvent telemetry.
• packages/core/src/telemetry/clearcut-logger/event-metadata-key.ts
  • Defined new EventMetadataKey enums (GEMINI_CLI_ROUTING_REASONING, GEMINI_CLI_ROUTING_NUMERICAL_ENABLED, GEMINI_CLI_ROUTING_CLASSIFIER_THRESHOLD) for numerical routing telemetry.
• packages/core/src/telemetry/loggers.test.ts
  • Added a new test to confirm that logModelRouting correctly handles and logs numerical routing fields.
• packages/core/src/telemetry/metrics.test.ts
  • Corrected the casing of 'classifier' to 'Classifier' in routing.decision_source within test expectations.

Activity

• No specific activity (comments, reviews, etc.) has been recorded for this pull request yet.

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[gemini-code-assist]

Code Review

This pull request cherry-picks a commit to a release branch, introducing fixes and enhancements for the telemetry of the numerical classifier routing strategy. The changes include making the telemetry source name more specific (from 'Classifier' to 'NumericalClassifier') and adding new telemetry fields for reasoning, feature enablement status, and the classifier threshold. The corresponding tests have been updated to reflect these changes. The implementation is sound and improves the observability of the routing strategy. I have not found any high or critical issues.

[github-actions]

Size Change: +688 B (0%)

Total Size: 23.5 MB

ℹ️ View Unchanged

Filename	Size	Change
./bundle/gemini.js	23.5 MB	+688 B (0%)
./bundle/sandbox-macos-permissive-closed.sb	1.03 kB	0 B
./bundle/sandbox-macos-permissive-open.sb	890 B	0 B
./bundle/sandbox-macos-permissive-proxied.sb	1.31 kB	0 B
./bundle/sandbox-macos-restrictive-closed.sb	3.29 kB	0 B
./bundle/sandbox-macos-restrictive-open.sb	3.36 kB	0 B
./bundle/sandbox-macos-restrictive-proxied.sb	3.56 kB	0 B

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