PR #21039 fixed OAuth token handling at the LLM layer (Authorization: Bearer
instead of x-api-key), but the proxy layer still strips the Authorization
header in clean_headers() before it reaches the Anthropic code. This breaks
OAuth for proxy users (e.g., Claude Code Max through LiteLLM proxy).
Changes:
- Add is_anthropic_oauth_key() helper to detect OAuth tokens (sk-ant-oat*)
- Preserve OAuth Authorization headers in clean_headers() instead of stripping
- Forward OAuth Authorization via ProviderSpecificHeader in
add_provider_specific_headers_to_request() so tokens only reach
Anthropic-compatible providers (anthropic, bedrock, vertex_ai)
Fixes#19618
Co-authored-by: Adam Reed <iamadamreed@users.noreply.github.com>
* Add 6 new EU PII patterns for GDPR compliance
- fr_nir: French Social Security Number (NIR/INSEE) with validation
- eu_iban_enhanced: Enhanced IBAN detection with specific format
- fr_phone: French phone numbers (+33, 0033, 0 formats)
- eu_vat: EU VAT identification numbers (all 27 member states)
- eu_passport_generic: Generic EU passport format
- fr_postal_code: French postal codes with contextual keywords
* Add GDPR Art. 32 EU PII Protection policy template
- Comprehensive GDPR Article 32 compliance policy
- 4 guardrail groups: National IDs, Financial, Contact Info, Business IDs
- Masks French NIR/INSEE, EU IBANs, French phones, EU VAT numbers
- Includes EU passport numbers and email addresses
- Medium complexity template with indigo icon
* Add comprehensive tests for EU PII patterns
- Test French NIR validation (sex digit, month range)
- Test enhanced IBAN detection (French, German)
- Test French phone number formats
- Test EU VAT numbers
- Test generic EU passport format
- Test French postal code pattern
* Add EU pattern loading and category validation tests
- Verify all 6 EU PII patterns are loaded correctly
- Verify patterns are categorized as 'EU PII Patterns'
- Ensure pattern loading consistency
* Add end-to-end tests for GDPR policy template
- 4 tests for PII that should be masked (NIR, IBAN, phone, VAT)
- 4 tests for text that should pass through (invalid patterns, no PII)
- 1 bonus test for multiple PII types in same message
- All tests verify correct masking behavior
* Add region field to policy templates
- Added region field to all 6 templates (EU, AU, Global)
- Updated both main and backup JSON files
- Enables region-based filtering in UI
* Add region filter to policy templates UI
- Added Radio.Group filter for regions (All, AU, EU, Global)
- Efficient filtering with useMemo hooks
- Clean button-based UI matching existing design
- Defaults missing regions to Global
* feat: add EU AI Act Article 5 policy template
Add policy template for detecting EU AI Act Article 5 prohibited practices using conditional keyword matching.
Coverage:
- Article 5.1.c: Social scoring systems
- Article 5.1.f: Emotion recognition in workplace/education
- Article 5.1.h: Biometric categorization of protected characteristics
- Article 5.1.a: Harmful manipulation techniques
- Article 5.1.b: Vulnerability exploitation
Implementation:
- Uses proven conditional matching pattern (identifier + block words)
- 10 always-block keywords for explicit violations
- 8 exceptions for research/compliance/entertainment
- Zero cost (<5ms), no external APIs, 100% private
* feat: add EU AI Act guardrail config example
Example configuration showing how to enable EU AI Act Article 5 guardrail.
* test: add 40 test cases for EU AI Act Article 5
Comprehensive test coverage:
- 10 always-block keywords (explicit violations)
- 15 conditional matches (identifier + block word)
- 8 exceptions (research, compliance, entertainment)
- 7 no-match cases (legitimate uses)
Tests validate correct blocking/allowing behavior for Article 5 prohibited practices.
* Fix: support standalone conditional matching without inherit_from
- Updated loading logic to activate conditional matching when either:
1. identifier_words + inherit_from (existing pattern)
2. identifier_words + additional_block_words (new standalone pattern)
- Modified _load_conditional_category to handle standalone templates
- EU AI Act template now works properly without inherit_from
- All 45 tests passing
Fixes Greptile feedback: conditional matching now activates for templates
that define additional_block_words without requiring inherit_from
* fix: address Greptile code review feedback (2/5 score)
- patterns.json: add keyword_pattern to eu_vat and eu_passport_generic
- patterns.json: fix fr_phone pattern with leading word boundary
- patterns.json: fix eu_iban_enhanced regex efficiency
- policy_templates.json: remove country-specific passport patterns from GDPR template
- policy_templates_backup.json: sync with main templates file
- test_gdpr_policy_e2e.py: update test setup and fix VAT test text
All tests now pass. Keyword guards prevent false positives.
* Fix: address Greptile pattern feedback
- Fix fr_phone: use negative lookbehind (?<!\d) to prevent false matches in digit strings
- Add keyword_pattern to eu_passport_generic to reduce false positives
- Add keyword_pattern to eu_vat for contextual matching
All pattern tests passing
* Update litellm/proxy/guardrails/guardrail_hooks/litellm_content_filter/patterns.json
Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
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Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
* Add 6 new EU PII patterns for GDPR compliance
- fr_nir: French Social Security Number (NIR/INSEE) with validation
- eu_iban_enhanced: Enhanced IBAN detection with specific format
- fr_phone: French phone numbers (+33, 0033, 0 formats)
- eu_vat: EU VAT identification numbers (all 27 member states)
- eu_passport_generic: Generic EU passport format
- fr_postal_code: French postal codes with contextual keywords
* Add GDPR Art. 32 EU PII Protection policy template
- Comprehensive GDPR Article 32 compliance policy
- 4 guardrail groups: National IDs, Financial, Contact Info, Business IDs
- Masks French NIR/INSEE, EU IBANs, French phones, EU VAT numbers
- Includes EU passport numbers and email addresses
- Medium complexity template with indigo icon
* Add comprehensive tests for EU PII patterns
- Test French NIR validation (sex digit, month range)
- Test enhanced IBAN detection (French, German)
- Test French phone number formats
- Test EU VAT numbers
- Test generic EU passport format
- Test French postal code pattern
* Add EU pattern loading and category validation tests
- Verify all 6 EU PII patterns are loaded correctly
- Verify patterns are categorized as 'EU PII Patterns'
- Ensure pattern loading consistency
* Add end-to-end tests for GDPR policy template
- 4 tests for PII that should be masked (NIR, IBAN, phone, VAT)
- 4 tests for text that should pass through (invalid patterns, no PII)
- 1 bonus test for multiple PII types in same message
- All tests verify correct masking behavior
* Add region field to policy templates
- Added region field to all 6 templates (EU, AU, Global)
- Updated both main and backup JSON files
- Enables region-based filtering in UI
* Add region filter to policy templates UI
- Added Radio.Group filter for regions (All, AU, EU, Global)
- Efficient filtering with useMemo hooks
- Clean button-based UI matching existing design
- Defaults missing regions to Global
* Apply suggestion from @greptile-apps[bot]
Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
* Address Greptile review: add contextual guards and negative tests
- Added keyword_pattern to eu_vat (VAT, tax number, fiscal code, etc.)
- Added keyword_pattern to eu_passport_generic (passport, travel document, etc.)
- Added 3 negative unit tests for false positive prevention
- Added 2 E2E tests verifying no masking without keyword context
- All patterns now require contextual keywords to prevent false positives
* address greptile review feedback (greploop iteration 1)
- Remove unused HTTPException import from test file
- Add keyword_pattern to eu_vat for contextual VAT matching
- Add allow_word_numbers: false to eu_passport_generic
- Add negative test cases for EU VAT false positives
- All 5 Greptile comments addressed
* Address Greptile feedback: fix patterns and sync backup
- Fix fr_phone pattern: use negative lookbehind (?<!\d) to prevent false matches in longer digit strings
- Add keyword_pattern to eu_passport_generic to reduce false positives on version strings/SKUs
- Sync policy_templates_backup.json with main file (add GDPR template)
- Add keyword_pattern to eu_vat (was auto-added by formatter)
All pattern tests passing
* address greptile review feedback (greploop iteration 2)
- Update test to document that eu_vat raw pattern is intentionally broad
- Test verifies pattern DOES match common words (by design)
- Documents that keyword_pattern guard prevents false positives in production
- Addresses Greptile's false positive risk concern
* address greptile review feedback (greploop iteration 3)
- Fix test_eu_vat_masked: change gap from 2 words to 1 word (VAT number: FR...)
- This ensures keyword matching works within MAX_KEYWORD_VALUE_GAP_WORDS=1 limit
- fr_phone pattern already works correctly (verified with tests)
- test_pattern_requires_keyword_context already updated in iteration 2
Addresses final issues from Greptile 2/5 review
* fix: remove country-specific passport patterns from GDPR template
- Remove passport_france, passport_germany, passport_netherlands from template
- These patterns lack keyword guards and cause false positives
- Only eu_passport_generic remains (has keyword_pattern guard)
- Sync policy_templates_backup.json with main file
- Update test setup to match template
All 11 E2E tests now passing ✅
* Update tests/test_litellm/proxy/guardrails/guardrail_hooks/content_filter/test_gdpr_policy_e2e.py
Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
* Update litellm/proxy/guardrails/guardrail_hooks/litellm_content_filter/content_filter.py
Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
---------
Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
* feat(ui/): allow viewing content filter categories on guardrail info
* fix(add_guardrail_form.tsx): add validation check to prevent adding empty content filter guardrails
* feat(ui/): improve ux around adding new content filter categories
easy to skip adding a category, so make it a 1-click thing
PR #19809 changed stateless=True to stateless=False to enable progress
notifications for MCP tool calls. This caused the mcp library to enforce
mcp-session-id headers on all non-initialize requests, breaking MCP
Inspector, curl, and any client without automatic session management.
Revert to stateless=True to restore compatibility with all MCP clients.
The progress notification code already handles missing sessions gracefully
(defensive checks + try/except), so no other changes are needed.
Fixes#20242
* Fix tool params reported as supported for models without function calling (#21125)
JSON-configured providers (e.g. PublicAI) inherited all OpenAI params
including tools, tool_choice, function_call, and functions — even for
models that don't support function calling. This caused an inconsistency
where get_supported_openai_params included "tools" but
supports_function_calling returned False.
The fix checks supports_function_calling in the dynamic config's
get_supported_openai_params and removes tool-related params when the
model doesn't support it. Follows the same pattern used by OVHCloud
and Fireworks AI providers.
* Style: move verbose_logger to module-level import, remove redundant try/except
Address review feedback from Greptile bot:
- Move verbose_logger import to top-level (matches project convention)
- Remove redundant try/except around supports_function_calling() since it
already handles exceptions internally via _supports_factory()
When a shared ClientSession is passed to LiteLLMAiohttpTransport,
calling aclose() on the transport would close the shared session,
breaking other clients still using it.
Add owns_session parameter (default True for backwards compatibility)
to AiohttpTransport and LiteLLMAiohttpTransport. When a shared session
is provided in http_handler.py, owns_session=False is set to prevent
the transport from closing a session it does not own.
This aligns AiohttpTransport with the ownership pattern already used
in AiohttpHandler (aiohttp_handler.py).
Add s3_use_virtual_hosted_style parameter to support AWS S3 virtual-hosted-style URL format (bucket.endpoint/key) alongside the existing path-style format (endpoint/bucket/key).
This enables compatibility with S3-compatible services like MinIO and aligns with AWS S3 official terminology.
The test was creating fresh mocks but not fully isolating from setUp state,
causing intermittent CI failures with 'Expected generation to be called once.
Called 0 times.'
Instead of creating fresh mocks, properly reset the existing setUp mocks to
ensure clean state while maintaining proper mock chain configuration.
Bedrock rejects thinking.budget_tokens values below 1024 with a 400
error. This adds automatic clamping in the LiteLLM transformation
layer so callers (e.g. router with reasoning_effort="low") don't
need to know about the provider-specific minimum.
Fixes#21297
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
