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* feat(guardrails): support streaming text transformation in generic_guardrail_api * chore(guardrails): address PR review feedback * fix(guardrails): fail closed on tool-call and prefix-rewrite leaks in streaming transform * fix(guardrails): address Bugbot review on streaming transform correctness * fix(guardrails): coerce holdback in handler for in-process guardrails * fix(guardrails): harden streaming transform (holdback coercion, tool-call passthrough, n>1 finish_reason) * test(guardrails): targeted _mode_matches coverage for all guardrail_mode shapes * fix(guardrails): inspect streamed tool calls and harden incremental_diff edge cases * test: move ComplianceChecker mode tests to the compliance PR * fix(guardrails): strip content from tool-call passthrough so streamed text can't bypass the transform * fix(guardrails): four correctness fixes for incremental_diff streaming path Four bug fixes on top of the OSS PR's incremental_diff streaming text transformation, all inside the incremental_diff code paths only. No existing block_only, non-streaming, or pre_call behavior is touched. Fix #1 — Mixed content+tool_call finish_reason ordering _tool_call_passthrough_chunk now takes an optional finish_reason_per_choice map. For a choice carrying both delta.content and delta.tool_calls, finish_reason is stripped from the passthrough and recorded on the map so the final synthetic text chunk delivers it. Without this, SSE-compliant clients stopping at finish_reason drop the guardrailed text — defeating the redaction the whole feature exists for. (Greptile P1 twice, Veria.) Fix #2 — Choice index sort in _process_streaming_transform indices/texts_to_check were derived from dict insertion order. For n>1 streams where choice 1 emits before choice 0, guardrail-returned texts aligned to the input order mapped back to the wrong choice indices on write-back — wrong text goes to wrong choice. Sort raw_by_index.keys() up front so realignment is deterministic. (Bugbot Medium.) Fix #3 — Cross-chunk pre-tool-call text flush With default streaming_sampling_rate=5, text chunks followed by a pure tool-call chunk carrying finish_reason='tool_calls' would emit the passthrough with finish_reason before any transformed text delta had fired. Same failure mode as fix #1 but cross-chunk. Now we flush any accumulated text via _round(is_final=False) BEFORE yielding the tool-call passthrough. (Greptile P1.) Fix #4 — Terminator chunk for deferred finish_reason on empty mutated_text _build_transform_chunk returned None early when mutated_text_per_choice was empty. If a mixed content+tool_call chunk had deferred its finish_reason (via fix #1) and the guardrail then suppressed the text (empty return), the deferred finish_reason was never delivered. Now on is_final=True with empty mutated_text_per_choice, we emit a terminator carrying finish_reason per choice from finish_reason_per_choice. (Bugbot High.) Also normalized Optional[X] → X | None across the OSS PR's added surface via ruff UP045 autofix to keep the strict-rule gate within budget. Pure mechanical typing style change, no semantic effect. Regression tests for all four fixes: - test_mixed_chunk_finish_reason_arrives_after_transformed_text (#1) - test_text_flush_precedes_tool_call_passthrough (#3) - test_final_finish_reason_flushed_when_guardrail_suppresses_text (#4) - test_transform_sends_texts_sorted_by_choice_index (#2) All fixes reachable only when streaming_transform_mode == 'incremental_diff' is configured (via _run_incremental_transform_stream) or when a StreamTransformSink is present (via _process_streaming_transform). Verified scope-clean: no changes to block_only, non-streaming, pre_call, moderation, or sibling guardrails. --------- Co-authored-by: Marton Schneider <marton@schneider.co.nl> |
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| .. | ||
| guardrail_hooks | ||
| test_content_filter_path_traversal.py | ||
| test_content_utils.py | ||
| test_custom_code_security.py | ||
| test_deferred_guardrail_logging.py | ||
| test_guardrail_coverage.py | ||
| test_guardrail_endpoints.py | ||
| test_guardrail_registry.py | ||
| test_init_guardrails.py | ||
| test_llm_as_a_judge.py | ||
| test_mcp_jwt_signer.py | ||
| test_pillar_guardrails.py | ||
| test_prompt_security_guardrails.py | ||
| test_qostodian_nexus_guardrail.py | ||