[Feat] Add Tracing for guardrails in StandardLoggingPayload, Langfuse

[ishaan-jaff]

[Feat] Add Tracing for guardrails in StandardLoggingPayload, Langfuse

• This PR adds tracing for guardrails in the StandardLoggingPayload by updating the logging payload structure and the related guardrail processing logic as well as adding test coverage.
• Adds guardrail tracing in Langfuse

Relevant issues

Pre-Submission checklist

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• I have Added testing in the tests/litellm/ directory, Adding at least 1 test is a hard requirement - see details
• I have added a screenshot of my new test passing locally
• My PR passes all unit tests on make test-unit
• My PR's scope is as isolated as possible, it only solves 1 specific problem

Type

🆕 New Feature
✅ Test

Changes

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Name	Status	Preview	Comments	Updated (UTC)
litellm	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 16, 2025 5:45pm

[Copilot]

Pull Request Overview

This PR adds tracing for guardrails in the StandardLoggingPayload by updating the logging payload structure and the related guardrail processing logic as well as adding test coverage.

• Introduces a new test file to verify the logging payload.
• Updates StandardLoggingGuardrailInformation to include additional fields (duration and masked_entity_count) in utils.
• Refactors guardrail hooks in both the presidio integration and custom guardrail for improved logging.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
tests/guardrails_tests/test_tracing_guardrails.py	New test to ensure guardrail information is properly logged in the standard payload.
litellm/types/utils.py	Updates to StandardLoggingGuardrailInformation with additional fields and docstrings.
litellm/proxy/guardrails/guardrail_hooks/presidio.py	Refactors function parameters and logging trace flow for guardrail calls.
litellm/integrations/custom_guardrail.py	Refactors the guardrail logging decorator to include timing and masked entity count details.