Error after tool call with Claude 3.7 (AWS Bedrock)

[dvejsada]

What happened?

In some cases, after the tool call with agent, agent throws an error stating in the UI: Something went wrong. Here's the specific error message we encountered: An error occurred while processing the request: The model returned the following errors: messages.3.content.0: When providing thinking or redacted_thinking blocks, all preceding prompt sections (including system, tools, and thinking configuration) must match the parameters during the original request.

Full logs below.

Version Information

latest dev

Steps to Reproduce

1. Use agent with Claude 3.7 with tools connected
2. After the tool result is received, an error will occur.

What browsers are you seeing the problem on?

Chrome

Relevant log output

{"$fault":"client","$metadata":{},"level":"error","message":"[api/server/controllers/agents/client.js #sendCompletion] Unhandled error type The model returned the following errors: messages.3.content.0: When providing `thinking` or `redacted_thinking` blocks, all preceding prompt sections (including system, tools, and thinking configuration) must match the parameters during the original request.","name":"ValidationException","pregelTaskId":"4e712018-de90-56fd-a850-c3421a602b20","stack":"ValidationException: The model returned the following errors: messages.3.content.0: When providing `thinking` or `redacted_thinking` blocks, all preceding prompt sections (including system, tools, and thinking configuration) must match the parameters during the original request.\n    at de_ValidationExceptionRes (/app/node_modules/@aws-sdk/client-bedrock-runtime/dist-cjs/index.js:1690:21)\n    at de_ValidationException_event (/app/node_modules/@aws-sdk/client-bedrock-runtime/dist-cjs/index.js:1890:10)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async /app/node_modules/@aws-sdk/client-bedrock-runtime/dist-cjs/index.js:1743:30\n    at async Object.deserializer (/app/node_modules/@smithy/eventstream-serde-universal/dist-cjs/index.js:127:37)\n    at async SmithyMessageDecoderStream.asyncIterator (/app/node_modules/@smithy/eventstream-serde-universal/node_modules/@smithy/eventstream-codec/dist-cjs/index.js:438:28)\n    at async ChatBedrockConverse._streamResponseChunks (/app/node_modules/@langchain/aws/dist/chat_models.cjs:702:30)\n    at async ChatBedrockConverse._streamIterator (/app/node_modules/@langchain/core/dist/language_models/chat_models.cjs:100:34)"}

Screenshots

No response

Code of Conduct

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[danny-avila]

this was extensively tested for and resolved on latest, please update to confirm the issue, then export the conversation if you're still experiencing it.

Updating Instructions (docker):

# Linux command to Remove all existing images
docker images -a | grep "librechat" | awk '{print $3}' | xargs docker rmi

# Windows Powershell
docker images -a | findstr "librechat" | ForEach-Object { docker rmi $_.Split()[2] }

Then follow the directions here: https://www.librechat.ai/docs/local/docker#update-librechat