- Add `anthropic-beta-strip`, `anthropic-beta-append`, `inject-diagnostics`, and `client-request-id` options to `ClaudeHeaderDefaults`.
- Support `on`, `off`, and `passthrough` modes for `client-request-id` header handling in Claude requests.
- Sanitize and normalize configured beta override lists and client request ID configuration values.
Closes: #5093
- Add `anthropic-beta-strip`, `anthropic-beta-append`, `inject-diagnostics`, and `client-request-id` options to `ClaudeHeaderDefaults`.
- Support `on`, `off`, and `passthrough` modes for `client-request-id` header handling in Claude requests.
- Sanitize and normalize configured beta override lists and client request ID configuration values.
Closes: #5093
- Introduce `CleanJSONSchemaForAntigravityClaudeTool` and model-aware schema sanitization helpers to flatten multi-branch `anyOf`/`oneOf` unions specifically for Antigravity Claude tool parameter schemas.
- Preserve multi-branch union support for Gemini model variants while preventing Claude backend HTTP 400 validation errors on nested unions.
- Ensure proper inheritance of nullable markers and idempotency across the translator and executor chain.
Closes: #3662
- Translate Gemini `MALFORMED_FUNCTION_CALL` responses into Claude API error payloads instead of refusal stop reasons.
- Capture translated stream errors in Gemini and Vertex executors to ensure proper error propagation, usage reporting, and state management.
Closes: #6606
- Introduce `defaultClaudeChatMaxTokensForModel` to determine default max tokens based on model metadata and fallback rules.
- Update `ConvertOpenAIRequestToClaude` to apply model-specific default max tokens and handle null `max_tokens` or `max_completion_tokens`.
- Implement `stripTranslatedDefaultMaxTokens` in Claude executor to allow payload default rules to override synthesized max tokens when omitted by the caller.
Closes: #6601
- Introduce `sdk/httptransport` package with `Decorator`, `WithDecorator`, `WithoutDecorator`, `InheritDecorator`, and `Decorate` functions.
- Propagate transport decorators from incoming HTTP request contexts in `BaseAPIHandler.GetContextWithCancel`.
- Apply transport decoration after client transport selection across proxy-aware, Devin, uTLS, and Antigravity HTTP clients.
Closes: #5616
- Retain multi-branch `anyOf` and `oneOf` unions instead of flattening them into a single branch.
- Normalize `oneOf` to `anyOf` on native Gemini/Antigravity schema carriers while preserving `oneOf` when standard constraints are allowed.
- Materialize required-only union branches using parent object properties.
- Strip null and boolean `false` branches from unions, applying `nullable: true` and description hints where appropriate.
Closes: #3662
Anthropic keeps the prompt cache when deferred tools are added, but not when a request goes from no deferred tool to one. Codex hides deferred tools until a search returns them, so the request after the first discovery always missed the cache. Native tool search now declares one constant deferred anchor tool ahead of discovered tools, so discoveries only append to tools[].
The OAuth path injects a currentDate reminder, so the golden recorded on 2026-10-11 failed on any other day. Pin claudeCodeCurrentTimeFunc to the recording day and reset Claude diagnostics in renderToolSearchExecutorGolden.
With cloaked Claude OAuth, the model sometimes emits a caller-owned MCP tool
under the request-local virtual server while keeping the tool's full name,
e.g. mcp__<virtual>__mcp__<server>__<tool>. The existing recoveries only
handle the <server>__<tool> and <tool> tails, so this form is forwarded as an
undeclared tool name and the client cannot dispatch it.
Add a first recovery step that maps the suffix back when it is exactly the
full name of a declared passthrough tool. Ambiguous suffixes still fail
closed through the existing recovery path.
- Inject API key, access provider, and native key flags into the request context during authentication
- Add `IsNativeKey` and `AccessProvider` fields to usage records, plugin API types, and redis queue payloads
- Provide context helper functions and automatic fallback resolution in the usage manager and reporter
Closes: #6509
- Record credential and model cooldowns when stream execution encounters an upstream error despite context cancellation
- Prioritize reading ready stream chunks before handling context cancellation in conductor
- Defer Codex websocket disconnect notifications until error frames are delivered to the stream
Closes: #6503
- Use `isValidClaudeCacheControl` when inspecting `cache_control` fields across system prompts, tools, and message contents
- Prevent null or non-object cache control entries from counting against limits or interfering with TTL normalization and injection logic
Closes: #6491
- Track terminal response IDs per connection to idempotently handle late interrupts targeting completed turns
- Prevent late interrupts from contaminating subsequent requests or returning false errors on idle retained connections
- Add thread-safe diagnostic logging of sanitized interrupt outcomes in the Responses websocket handler
Closes: #6483
- Normalize tool use and tool result IDs in Claude message payloads to adhere to character constraints
- Encode non-portable tool call IDs in Devin executor responses and restore original IDs before request construction
Closes: #6478
- Skip directive-only system turns when locating the insertion point for mid-conversation system messages
- Prevent system blocks from being prematurely placed before subsequent user turns when effort directives are present
Closes: #6477
- Check configured upstream models and aliases before normalizing direct OpenAI image model names
- Support requested model resolution across JSON and multipart image payloads
Closes: #6458
- Handle compaction trigger requests by generating summaries and sealing antigravity compaction capsules
- Expand replayed compaction capsules into message history before translation and filter foreign compaction items
- Preserve tool definitions with `tool_choice: none` or flatten tool blocks when tool definitions are missing
- Support streaming compaction execution and map cache creation and read token usage
Closes: #6466
- Intercept and process `response.interrupt` control frames immediately on the downstream websocket reader
- Forward interrupts to active upstream Codex websocket sessions without starting a new turn or rewriting payload fields
- Support canceling in-flight HTTP turns via local interrupt handling
- Allow session-staged Home credentials to authorize interrupts
Closes: #6456
- Introduce `sanitizeOpenAIResponsesReasoningEncryptedContentKeepForeign` to retain unknown-format reasoning signatures
- Update Meta executor to preserve foreign reasoning encrypted payloads for third-party models like Muse
Closes: #6450
- Pass configured proxy URL to the npm registry updater client
- Validate fetched versions against strict semver and minimum server version floor (`1.0.13`)
- Update default fallback client version to `1.0.46`
- Manage background updater lifecycle and context via service lifecycle initialization
- Track dropped attachments and reject emptied user turns during OpenAI Responses to Interactions translation
- Register checked request translator for OpenAI Responses to Interactions format conversion
- Fetch latest @xai-official/grok client version from npm registry on startup
- Periodically refresh Grok CLI version every 3 hours without multiple retries
- Update hardcoded fallback version to 1.0.50 if npm registry is unreachable
- Dynamically inject active version into x-grok-client-version and User-Agent headers
