fix(providers): propagate abort signal to all LLM SDK calls

[waleedlatif1]

Summary

• Add abortSignal to ProviderRequest interface
• Wire ctx.abortSignal from agent handler into provider requests
• Pass signal to all SDK call sites across 13 providers (Anthropic, Gemini, OpenAI, Bedrock, DeepSeek, Groq, xAI, Mistral, Cerebras, vLLM, Ollama, OpenRouter, Azure OpenAI)
• In-flight LLM requests now cancel immediately when execution times out or user disconnects

Type of Change

• Bug fix

Testing

Tested manually — verified TypeScript compiles clean, existing provider tests pass

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Feb 24, 2026 10:45pm

[greptile-apps]

Greptile Summary

This PR implements proper abort signal propagation across all LLM provider integrations to enable immediate cancellation of in-flight API requests when executions timeout or users disconnect.

Key changes:

• Added optional abortSignal field to ProviderRequest interface
• Wired ctx.abortSignal from agent handler into all provider requests
• Propagated signal to SDK calls across 13 providers (Anthropic, Gemini, OpenAI, Bedrock, DeepSeek, Groq, xAI, Mistral, Cerebras, vLLM, Ollama, OpenRouter, Azure OpenAI)
• Covered both streaming and non-streaming code paths, as well as tool loop iterations

Implementation is consistent and thorough:

• Each provider follows the appropriate pattern for its SDK (options object with signal field for OpenAI-compatible SDKs, abortSignal field for AWS SDK, direct config field for Gemini)
• All SDK call sites have been updated, including initial calls, tool loop iterations, and final streaming responses
• Changes are minimal and focused - no refactoring or over-engineering

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• The implementation is straightforward, consistent across all providers, and follows each SDK's documented pattern for abort signal handling. The changes are purely additive (optional parameter), maintain backward compatibility, and the author confirmed TypeScript compiles cleanly with existing tests passing.
• No files require special attention

Important Files Changed

Filename	Overview
apps/sim/providers/types.ts	Added optional abortSignal field to ProviderRequest interface
apps/sim/executor/handlers/agent/agent-handler.ts	Wired ctx.abortSignal to provider request to enable cancellation
apps/sim/providers/anthropic/core.ts	Propagated abort signal to all Anthropic SDK calls (streaming and non-streaming)
apps/sim/providers/openai/core.ts	Added abort signal to all fetch calls for OpenAI Responses API
apps/sim/providers/gemini/core.ts	Added abort signal to Gemini configuration object
apps/sim/providers/bedrock/index.ts	Passed abort signal to all Bedrock client.send() calls
apps/sim/providers/groq/index.ts	Added abort signal to all Groq SDK calls (streaming and non-streaming)
apps/sim/providers/deepseek/index.ts	Propagated abort signal to all DeepSeek SDK calls
apps/sim/providers/xai/index.ts	Added abort signal to all xAI SDK calls (streaming and non-streaming)
apps/sim/providers/mistral/index.ts	Propagated abort signal to all Mistral SDK calls
apps/sim/providers/cerebras/index.ts	Added abort signal to all Cerebras SDK calls
apps/sim/providers/ollama/index.ts	Propagated abort signal to all Ollama SDK calls
apps/sim/providers/vllm/index.ts	Added abort signal to all vLLM SDK calls
apps/sim/providers/openrouter/index.ts	Propagated abort signal to all OpenRouter SDK calls
apps/sim/providers/azure-openai/index.ts	Added abort signal to all Azure OpenAI SDK calls

_{Last reviewed commit: a98e20f}

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