Remove the "Enable URL context" and "Enable Grounding with Google search"
checkboxes from Gemini and Vertex provider settings, along with:
- enableUrlContext and enableGrounding fields from provider settings schemas
- URL context and Google Search tool injection in completePrompt methods
- Associated translation keys from all 18 locale files
- Related test cases updated to reflect the removal
- simplifySettings prop removed from Gemini and Vertex components
(it was only used for the removed checkboxes in those components)
Co-authored-by: Roo Code <roomote@roocode.com>
* fix: capture and round-trip thinking signature for Bedrock Claude models
Bedrock handler streams reasoning text from Claude's extended thinking but
never captures the cryptographic signature. This causes 400 errors on
multi-turn conversations with tool use: 'Expected thinking or
redacted_thinking, but found tool_use'.
Changes:
- bedrock.ts: Capture reasoningContent.signature from Converse API stream
deltas, implement getThoughtSignature() so Task.ts stores it as a proper
thinking content block
- bedrock-converse-format.ts: Convert thinking blocks to Bedrock's
reasoningContent format with signature, skip reasoning/redacted_thinking/
thoughtSignature blocks that aren't valid for the API
* fix: add redacted_thinking round-trip, fix interface types, add tests
Address PR review feedback:
- Update ContentBlockDeltaEvent interface to include signature and
redactedContent fields (removes type assertions)
- Add 6 tests for thinking/reasoning block conversions in
bedrock-converse-format.ts
Also add redacted_thinking round-trip support:
- bedrock.ts: Capture redactedContent from stream deltas, base64 encode,
expose via getRedactedThinkingBlocks()
- Task.ts: Insert redacted_thinking blocks after thinking block in
assistant messages
- bedrock-converse-format.ts: Convert redacted_thinking blocks back to
reasoningContent.redactedContent (base64 → Uint8Array)
PR #11180 migrated Gemini/Vertex providers to the AI SDK and deleted
gemini-format.ts which contained the working thought signature round-trip
logic (originally added in PR #10590). This broke all Gemini 3 tool use
with a 400 error: 'Function call is missing a thought_signature'.
Changes:
- Gemini/Vertex handlers: capture thoughtSignature from providerMetadata
on tool-call stream events, expose via getThoughtSignature()
- convertToAiSdkMessages(): extract thoughtSignature content blocks from
history, attach as providerOptions on first tool-call part (per Gemini 3
parallel call rules)
- Add 3 tests verifying thought signature round-trip behavior
When the 'custom base URL' checkbox is unchecked in the UI, the setting
is set to '' (empty string). Providers that passed this directly to their
SDK constructors caused 'Failed to parse URL' errors because the SDK
treated '' as a valid but broken base URL override.
- gemini.ts: use || undefined (was passing raw option)
- openai-native.ts: use || undefined (was passing raw option)
- openai.ts: change ?? to || for fallback default
- deepseek.ts: change ?? to || for fallback default
- moonshot.ts: change ?? to || for fallback default
Adds test coverage for Gemini and OpenAI Native constructors verifying
empty-string baseURL is coerced to undefined.
* feat: add Claude Opus 4.6 support across all providers
Add Claude Opus 4.6 (claude-opus-4-6) model definitions and 1M context
support across Anthropic, Bedrock, Vertex AI, OpenRouter, and Vercel AI
Gateway providers.
- Anthropic: 128K max output, /5 pricing, 1M context tiers
- Bedrock: anthropic.claude-opus-4-6-v1:0 with 1M context + global inference
- Vertex: claude-opus-4-6 with 1M context tiers
- OpenRouter: prompt caching + reasoning budget sets
- Vercel AI Gateway: Opus 4.5 and 4.6 added to capability sets
- UI: 1M context checkbox for Opus 4.6 on all providers
- i18n: Updated 1M context descriptions across 18 locales
Also adds Opus 4.5 to Vercel AI Gateway (previously missing) and
OpenRouter maxTokens overrides for Opus 4.5/4.6.
Closes#11223
* fix: apply tier pricing when 1M context is enabled on Bedrock
When awsBedrock1MContext is enabled for tiered models like Opus 4.6,
also apply the 1M tier pricing (inputPrice, outputPrice, cache prices)
instead of only updating contextWindow. This ensures cost calculations
and UI display use the correct >200K rates.
* fix(ai-sdk): preserve reasoning parts in message conversion
* fix(ai-sdk): convert message-level reasoning_content to reasoning part
* fix(task): remove invalid openai-compatible from reasoning allowlist
* feat: add isAiSdkProvider() method for dynamic AI SDK provider detection
- Add isAiSdkProvider() method to ApiHandler interface
- Default implementation in BaseProvider returns false
- Override to return true in 11 AI SDK providers:
deepseek, fireworks, mistral, groq, xai, cerebras,
sambanova, huggingface, gemini, vertex, openai-compatible
- Update Task.ts to use dynamic detection instead of hardcoded Set
- Add method to FakeAIHandler and update test mocks
* fix: handle reasoning parts in flattenAiSdkMessagesToStringContent
- Strip reasoning parts when flattening messages for string-only models
- Allow flattening when message contains only text and reasoning parts
- Add tests for reasoning part handling in string-only model contexts
This addresses the review feedback about ensuring flattenAiSdkMessagesToStringContent
works correctly when reasoning parts are present (e.g., SambaNova DeepSeek).
---------
Co-authored-by: daniel-lxs <ricciodaniel98@gmail.com>
* fix(ai-sdk): preserve reasoning parts in message conversion
* fix(ai-sdk): convert message-level reasoning_content to reasoning part
* fix(task): remove invalid openai-compatible from reasoning allowlist
* feat: migrate Gemini and Vertex providers to AI SDK
- Migrate GeminiHandler from @google/genai to @ai-sdk/google
- Create standalone VertexHandler using @ai-sdk/google-vertex
- Use shared AI SDK utilities (streamText, generateText, convertToAiSdkMessages)
- Support thinkingConfig via providerOptions.google.thinkingConfig
- Support Google Search and URL Context grounding tools
- Preserve cost calculation with tiered pricing
- Remove gemini-format.ts (AI SDK handles message conversion)
EXT-643
* fix: remove unused import and implement allowedFunctionNames tool filtering
- Remove unused handleAiSdkError import from gemini.ts
- Implement tool filtering based on allowedFunctionNames in both
GeminiHandler and VertexHandler createMessage methods
- Filter tools before converting to AI SDK format to restrict
model access to only allowed functions
- Modified VsCodeLmHandler.internalCountTokens() to create temporary cancellation tokens when needed
- Token counting now works both during and outside of active requests
- Added 4 new tests to verify the fix and prevent regression
- Resolves issue where VS Code LM API users experienced context overflow errors
