[BUG] 400 invalid_request_error with Experimental Parallel Tool Calls after 20-30 conversation turns #9700
Description
Problem (one or two sentences)
When using the Anthropic provider with the experimental "Parallel tool calls" feature enabled, a bug may occur after the number of conversation turns reaches a certain threshold (approximately 20-30 turns).
The API call fails and returns a 400 invalid_request_error.
Error Response:
{
"type": "error",
"error": {
"type": "invalid_request_error",
"message": "messages.70: tool_use ids were found without tool_result blocks immediately after: toolu_01FZKGcgUxLCjjJqsvMMFyHH. Each tool_use block must have a corresponding tool_result block in the next message."
},
"request_id": "req_011CVdnBbidP19zWhjmu5Rj5"
}
Context (who is affected and when)
When using the Anthropic provider with the experimental "Parallel tool calls" feature enabled, a bug may occur after the number of conversation turns reaches a certain threshold (approximately 20-30 turns).
Reproduction steps
0.use Anthropic provider
1.enable tool call native
2.enable experimental "Parallel tool calls" feature
3.approximately 20-30 turns
Expected result
Engage in a normal conversation
Actual result
400 error
Variations tried (optional)
No response
App Version
3.34.8
API Provider (optional)
Anthropic
Model Used (optional)
No response
Roo Code Task Links (optional)
No response