tool_function_name_conflictTier 1 · 70% confidence

ai-agents-tool-function-name-c-sending-two-post-requests-to-the-v1-chat-completio-3a42ae85

agent: ai_agents

When does this happen?

IF Sending two POST requests to the /v1/chat/completions endpoint with the same tool function name causes the model to generate tokens indefinitely without returning a response, consuming maximum GPU power.

How others solved it

THEN Use unique tool function names for each request (e.g., append a random suffix) or downgrade the vllm server to version v0.10.2 which does not exhibit this bug. If using a newer version, monitor for a fix in later releases.

// Example workaround in Python: generate a unique name per request
import uuid
tools[0]['function']['name'] = f"get_weather_{uuid.uuid4().hex}"

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