- Replaced per-item `sjson.SetRawBytes(out, "system.-1"/"messages.-1", ...)` appends, which reparsed and rewrote the growing output document on every conversation item, causing O(n^2) work on long histories.
- Collected system and message blocks into slices and wrote each array once via `common.JoinRawArray`, moving the cache_control post-processing and system-only fallback turn onto the collected slices.
- Replaced per-item `sjson.SetRawBytes(out, "input.-1"/"messages.-1", ...)` appends, which reparsed and rewrote the growing output document on every conversation item, causing O(n^2) work on long histories.
- Applied the same approach to both interactions translation directions and the OpenAI Responses to Chat Completions path.
- Introduced `SanitizedFunctionNameMap` and `DisambiguatedToolNameMap` for consistent mapping between sanitized and original tool names.
- Added collision handling with deterministic hash suffixes for name disambiguation within character limits.
- Implemented logic to deduplicate and map tool and function names across translator components, including Interactions, Claude, and Gemini.
- Updated test cases to validate name restoration, deduplication, disambiguation, and mapping behaviors.
Closes: #4244
- Introduced support for custom tool calls in request serialization, including preservation of call IDs, input, and output.
- Enhanced tool call batching logic to handle ambiguous, missing, and reused call IDs across assistant messages.
- Updated processing of tool call outputs to ensure proper matching with pending calls and introduced synthesized IDs when necessary.
- Added extensive test cases to validate behavior for custom tool call histories, mixed call types, and edge cases with ambiguous or orphaned IDs.
Closes: #4256
- Added support for reasoning content in assistant messages with proper serialization of `thought`, `thoughtSignature`, and content parts.
- Ensured empty assistant messages and invalid function calls are skipped during request generation.
- Enhanced compatibility by adding test cases for preserving reasoning content, tool calls, and visible assistant content in `ConvertOpenAIRequestToGemini` and `ConvertOpenAIRequestToAntigravity`.
Closes: #4304
Preserve include=reasoning.encrypted_content, cache reasoning+assistant message
for store:false multi-turn, and accept Grok thinking signatures on Claude→Codex
for grok targets.
Harden replay cache: blob-level reasoning filter, never double-inject assistant
when history has a last message, isolate session keys by downstream API key,
clear cache on non-replayable completed turns, and normalize refusal parts.
- Enhanced `convertResponsesCustomToolToOpenAIChat` to handle custom tool overrides with qualified names.
- Added namespace child consolidation logic for tools.
- Updated `responsesCustomToolNames` to include namespace-aware tool extraction.
- Introduced new test cases to validate namespace and custom tool transformations in both streaming and non-streaming responses.
- Introduced handling for `cache_write_tokens` in `input_tokens_details` and mapped to `cached_creation_tokens` in output.
- Added comprehensive tests to validate correct parsing, preservation, and omission of `cache_write_tokens` in both streaming and non-streaming responses.
Closes: #4197
- Added logic to convert OpenAI `max_tokens` and `max_completion_tokens` to `generationConfig.maxOutputTokens`.
- Implemented unit tests to validate proper mapping behavior, including precedence of `max_tokens` over `max_completion_tokens`.
Closes: #4108
- Introduced `AttachCacheControl` and `AttachMessageCacheControl` utilities for consistent cache control injection in content parts and messages.
- Updated Claude translator modules to preserve and apply cache control metadata for responses, messages, tools, and parts.
- Added unit tests to validate proper cache control behavior across multiple scenarios.
Closes: #4146
- Consolidated thinking content block handling for improved clarity and efficiency.
- Unified `generationConfig` handling, including normalization of `thinkingConfig` settings.
- Added `applyOpenAIThinkingCompatibilityToAntigravity` for consistent reasoning and thought configuration compatibility.
Closes: #4067
- Added `applyResponsesToolResultContent` to process and structure tool response content.
- Introduced conversion logic for text, image, and file parts in tool responses.
- Updated tests to validate correct handling of data URL images in tool response outputs.
Closes: #4116
- Introduced API handlers and executor logic for Google Interactions
- Added request and response transformations for OpenAI and Claude Interactions.
- Integrated Gemini API with Interactions support.
- Updated tests to validate Interactions request parsing and error handling.
- Refactored translator logic for Interactions data flows.
Enhance reasoning content retrieval by falling back to 'reasoning' if 'reasoning_content' is absent or empty.
In some selfhosted openai-like server serving deepseek, the response.delta may contains reasoning rather than reasoning_content. So the client like codex does not recognize the thinking process.
Recognize model-visible output_text even when message.role is user, accept
assistant string content, and preserve raw merged text without trimming.
Always merge the adjacent visible item into native Gemini reasoning turns so
trailing output is not dropped by prefill stripping.
Build Gemini-native model contents for reasoning items when the routed model
uses the Gemini signature provider: thought summary on a thought part and the
replay signature on the adjacent visible part. Merge following assistant
visible text when it is not trailing prefill, and keep reasoning history when
stripping trailing model-authored prefill.
Extend Responses translator tests for signature compatibility and Antigravity
wrapper coverage; clarify stale replay signature expectations in executor tests.
- Added `ClaudeMessageSystemReminderText` to convert system content into user-readable reminder text.
- Updated translators (Antigravity, Gemini, Codex, OpenAI) to wrap `system` roles as reminders with `<system-reminder>` tags.
- Adjusted related test cases to validate reminder wrapping logic.
- Added tests for `ConvertOpenAIRequestToAntigravity` and `ConvertOpenAIRequestToGemini` to verify skipping of empty text parts while maintaining non-null structure.
- Refactored part index logic to correctly handle placement of replay parts in `antigravity_reasoning_replay`.
- Introduced helper functions `antigravityExistingReplayPartPath` and `antigravityReplayPartWritePath` for consistent replay part path management.
- Updated `ConvertOpenAIRequestToGemini` to process `video_url` message types, extracting and embedding video metadata (MIME type and base64 data) into Gemini request parts.
- Added corresponding unit tests to validate `video_url` handling, ensuring proper extraction and data preservation.
Closes: #3920
- Updated `ConvertGeminiRequestToClaude`, `ConvertGeminiRequestToCodex`, and their respective response counterparts to include logic for retaining and using tool/call IDs when present from gateway-provided inputs.
- Enhanced pairing logic between function calls and responses to handle custom and auto-generated IDs consistently.
- Introduced tests validating ID preservation and proper behavior in both streaming and non-streaming flows.
Closes: #3878
- Updated `ConvertGeminiRequestToOpenAI` to consume `tool_call_id`s in FIFO order, ensuring consistent mapping between calls and responses.
- Added fallback logic for unmatched or extra function responses to generate unique `tool_call_id`s with a `call_` prefix.
- Introduced comprehensive unit tests to validate order enforcement, distinct ID assignment, and fallback behavior.
Closes: #3874
- Applied `CleanJSONSchemaForGemini` to ensure compatibility by removing unsupported fields and cleaning schema requirements.
- Added test cases to validate schema transformation, ensuring only necessary `required` fields are retained.
- Enhanced both request and response flows to consistently clean and sanitize tool parameter schemas.
Closes: #3863
- Introduced `BenchmarkConvertSystemRoleToDeveloperLargeInput` to evaluate performance on various input sizes and configurations.
- Improved `convertSystemRoleToDeveloper` logic to optimize JSON rebuilding and reduce unnecessary operations.
- Created helper `makeLargeResponsesInputForBenchmark` to generate test data for performance scenarios.
Closes: #3751
- Implemented `applyOpenAIResponsesTextFormatToGemini` to handle `json_object` and `json_schema` formats.
- Updated generation config to set appropriate `responseMimeType` and optional `responseJsonSchema`.
- Introduced unit tests to validate correct handling of `text.format` conversion scenarios.
Closes: #3721
- Updated `ConvertCodexResponseToClaude` to delay emitting `function_call` start events until the `name` field is resolved.
- Introduced `pendingCodexFunctionCall` for buffering incomplete function calls.
- Added tests to ensure proper behavior for deferred starts, including argument buffering and finalization.
Closes: #3471
- Updated `ConvertOpenAIRequestToGemini` and `ConvertOpenAIRequestToCodex` to handle `input_audio`, retaining `data` and `format` fields.
- Added helper `openAIInputAudioMimeType` for determining MIME types from audio formats.
- Introduced unit tests to validate correct preservation of `input_audio` data and format.
Closes: #3447
- Enhanced `ConvertOpenAIResponsesRequestToOpenAIChatCompletions` to include `reasoning_content` in assistant and tool call messages.
- Introduced `collectOpenAIResponsesReasoningContent` for aggregating reasoning summaries.
- Added tests to validate reasoning attachment in various scenarios, including empty reasoning, tool calls, and reasoning followed by user messages.
Closes: #3397
- Updated handling in `ConvertOpenAIResponsesRequestToOpenAIChatCompletions` to retain `input_image` detail fields such as `image_url` and `detail`.
- Added `TestConvertOpenAIResponsesRequestToOpenAIChatCompletions_PreservesInputImageDetail` to verify preservation of image details during transformation.
Closes: #3385
- Updated `ConvertOpenAIResponsesRequestToOpenAIChatCompletions` to retain `tool_choice` with raw byte handling.
- Added `TestConvertOpenAIResponsesRequestToOpenAIChatCompletions_PreservesStructuredToolChoice` to ensure function and type fields are preserved in transformations.
Closes: #3384
- Added `convertResponsesToolToOpenAIChatTools` and helper methods to handle namespace tools during request conversions.
- Enhanced response handling to restore namespace context for function calls using `applyResponsesFunctionCallNamespaceFields` and related utilities.
- Updated tests to validate namespace flattening, function call restoration, and non-stream response handling.
Closes: #3298
- Added logic in `ConvertOpenAIResponsesRequestToClaude` to exclude `apply_patch` custom tools.
- Introduced `isOpenAIResponsesApplyPatchCustomTool` helper function to identify and filter the tool.
- Added `TestConvertOpenAIResponsesRequestToClaude_DropsApplyPatchCustomTool` to validate the behavior.
Closes: #3243
- Added `TestConvertClaudeRequestToOpenAI_ToolSchemaAddsMissingObjectProperties` to validate automatic addition of missing `properties` in `object` schemas.
- Introduced `normalizeObjectSchemaProperties` to recursively ensure schemas of type `object` include an empty `properties` field if absent.
- Updated `ConvertClaudeRequestToOpenAI` to apply schema normalization for improved compatibility with OpenAI schema expectations.
Closes: #3165
- Deleted `geminicli` provider and related `Apply` logic.
- Removed all translator packages specific to Gemini CLI (Claude, Codex integrations).
- Purged associated test files for Gemini CLI translation.
- Removed `GeminiAuthenticator` and all associated authentication logic (OAuth flows, token handling, refresh logic).
- Deleted internal/executor Gemini OAuth support, including bearer token handling and runtime API logic.
- Purged all tests, configs, and command-line flags specific to Gemini OAuth flows.
- Updated documentation and aliases to reflect Gemini removal.
- Renamed `parseRetryDelay` to `ParseRetryDelay` and `deleteJSONField` to `DeleteJSONField`.
- Updated references in `antigravity_executor` and tests to use the new `helps` package.
- Adjusted import paths and test cases to ensure compatibility with the new location.
- Updated README files to reflect changes in the retry logic references.
- Updated `.github/ISSUE_TEMPLATE/bug_report.md` to remove deprecated Gemini CLI mention.
- Introduced tests for `ConvertOpenAIRequestToGemini`, `ConvertOpenAIResponsesRequestToGemini`, and related Claude functions to ensure trailing model-prefill turns are removed.
- Enhanced tool call ID handling with `util.SanitizeClaudeToolID` to standardize IDs in Claude-related conversions and tests.
- Updated logic in Gemini and Claude translators to handle edge cases for trailing assistant prefill and tool ID sanitization, ensuring compatibility across input variants.
Closes: #3113
- Added `TestConvertOpenAIChatCompletionsResponseToOpenAIResponses_CompletedOmitsTopLevelOutputText` to ensure `output_text` is excluded in streamed responses.
- Added `TestConvertOpenAIChatCompletionsResponseToOpenAIResponses_ToolCallCompletedOmitsTopLevelOutputText` to validate behavior during tool call completions.
- Introduced `TestConvertOpenAIChatCompletionsResponseToOpenAIResponsesNonStream_OmitsTopLevelOutputText` to confirm the omission of `output_text` in non-streamed responses.
- Expanded test coverage to ensure consistency with native OpenAI responses.
- Refactored `ConvertOpenAIResponsesRequestToClaude` logic to align tool use with corresponding tool results.
- Introduced helper functions for appending and flushing pending reasoning and tool use messages.
- Expanded tests to validate message order and content consistency when processing tool calls and results.
- Refactored content block start/stop logic into `startCodexTextBlock` and `stopCodexTextBlock` for better readability and reusability.
- Updated logic to ensure proper handling of "output_text" block events to avoid ghost stop emissions.
- Added `TestConvertCodexResponseToClaude_StreamTextBeforeToolCallsDoesNotEmitGhostStop` to validate content block start/stop behavior in streamed responses.
- Introduced `applyResponsesFunctionCallNamespaceFields` to manage name and namespace settings in response items.
- Added `splitResponsesQualifiedFunctionCallFromRequest` for handling qualified names and matching them with namespaces.
- Updated response generation logic to preserve namespace and function call structure in multiple response pathways.
- Expanded unit tests to validate namespace and function call restoration in both stream and non-stream scenarios.
* fix(translator): emit Claude server tool blocks for Codex web_search_call streams
Map Codex Responses streaming web_search_call events to Claude SSE
server_tool_use and web_search_tool_result blocks, with deduplication
and a focused stream regression test.
* fix(translator): stabilize Codex web_search fallback tool_use IDs
Reuse the active fallback web_search tool_use ID across later stream
events so tool_result blocks stay paired when upstream omits item IDs.
This is defensive hardening; live Codex streams already provide ws_* IDs.
* fix(translator): emit Codex web_search blocks from populated items
Wait for output_item.done before emitting Claude web_search tool_use
and tool_result blocks, and avoid deduping early added/completed events
that arrive before action.query is available. Matches live Responses
stream ordering seen in local tmux verification.
* fix(translator): map Codex web_search_call items in non-stream Claude responses
Emit server_tool_use and web_search_tool_result blocks from completed
response.output web_search_call items, matching the streaming translator.
* fix(translator): keep non-stream web_search on end_turn and dedupe output items
Do not treat server web_search_call items as client tool_use for stop_reason.
Skip duplicate or query-less open_page web_search output items in non-stream
translation, matching spark live behavior.
- Added `ConvertClaudeToolResultContent` to standardize Claude tool_result content, preserving JSON structure and splitting out base64-encoded images.
- Updated Gemini and Gemini-CLI translators to use the new utility for generating deterministic function responses and inline image parts.
- Added comprehensive test cases for content types and edge cases, ensuring correct handling of string, JSON, and image blocks.
Closes: #2781
- Updated Antigravity Credits fallback to handle KV store unavailability as a service error.
- Enhanced signature caching mechanisms with request-time KV access and sliding expiration.
- Added and improved tests for KV client interactions, including error handling and expiration behaviors.
- Introduced `CacheSignatureBestEffort` for non-critical signature caching and clarified function flows with required context.
- Ensured consistent error reporting for missing or unavailable KV stores in various scenarios.
- Replaced direct `homekv` calls with injectable KV client interfaces for `antigravity` and `codex_reasoning_replay` modules.
- Improved error reporting and handling for KV operations, including `KVGet`, `KVSet`, `KVDel`, and `KVExpire`.
- Introduced dedicated fake KV clients for expanded and granular test coverage.
- Added new unit tests to validate KV client behaviors and error scenarios, ensuring robustness and sliding expiration functionality.
Dmitry Rubtsov