[litellm-agent] Staging → litellm_internal_staging (5/14/2026)

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Merged PRs (2)

#	Title
#27894	docs: add one-line docstring to _disable_debugging
#27831	Add jp. Bedrock cross-region inference profile for claude-sonnet-4-6

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[greptile-apps]

Greptile Summary

This merge batch delivers two changes: a docstring addition to _disable_debugging() and a fix for Anthropic /v1/messages requests that 400 when conversation history contains empty text blocks alongside tool_use blocks.

• strip_empty_text_blocks_from_anthropic_messages is added to common_utils.py and called at the top of anthropic_messages(), bringing the native Messages path in line with the guard already present in the /v1/chat/completions path.
• jp.anthropic.claude-sonnet-4-6 is added to model_prices_and_context_window.json with the same capability flags and pricing as the au./eu. regional profiles, backed by a new config pin test.

Confidence Score: 5/5

Safe to merge — both changes are narrowly scoped, well-tested with mock-only tests, and do not touch auth or critical request routing.

The empty-text-block sanitizer is non-mutating, correctly implemented, and covered by six unit tests plus an integration-level regression test. The JSON model entry is consistent with the other regional profiles and is validated by a new config pin test. The docstring change is cosmetic.

No files require special attention.

Important Files Changed

Filename	Overview
litellm/_logging.py	Adds a one-line docstring to _disable_debugging() — cosmetic only, no functional change.
litellm/llms/anthropic/common_utils.py	Adds strip_empty_text_blocks_from_anthropic_messages and _is_empty_text_block helpers; logic is correct, non-mutating, and well-documented.
litellm/llms/anthropic/experimental_pass_through/messages/handler.py	Applies the new empty-text-block sanitizer at the entry point of anthropic_messages() before any backend dispatch, mirroring the guard already in the /v1/chat/completions path.
model_prices_and_context_window.json	Adds jp.anthropic.claude-sonnet-4-6 entry matching the capability and pricing of the existing au./eu. regional profiles; intentionally omits cache_creation_input_token_cost_above_1hr which only us. carries.
tests/test_litellm/llms/anthropic/test_anthropic_common_utils.py	Adds six pure unit tests for strip_empty_text_blocks_from_anthropic_messages, covering the core regression scenario, whitespace/null/missing text, non-mutation, and block-type preservation.
tests/test_litellm/llms/anthropic/experimental_pass_through/messages/test_anthropic_experimental_pass_through_messages_handler.py	Adds a regression test verifying that anthropic_messages() forwards sanitized messages to the backend handler; uses mocks only, no real network calls.
tests/test_litellm/test_claude_sonnet_4_6_config.py	New test file that pins the expected set of Bedrock region-prefixed claude-sonnet-4-6 entries and validates that jp. pricing matches au.; reads local JSON, no network calls.

_{Reviews (3): Last reviewed commit: "Sanitize empty text content blocks on /v..." | Re-trigger Greptile}

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Codecov Report

✅ All modified and coverable lines are covered by tests.

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