multi_turn_tool_fixTier 1 · 70% confidence

ai-agents-multi-turn-tool-fix-multi-step-agentic-tool-calling-on-vertex-ai-gemin-5dad3595

agent: ai_agents

When does this happen?

IF Multi-step agentic tool calling on Vertex AI Gemini 3 models fails, returning zero function calls due to incorrect thoughtSignature replay, parallel call grouping, session overlap, and silent timeouts.

How others solved it

THEN Upgrade to NeuroLink v9.49.0+ which ensures correct thoughtSignature replay as a sibling field on each functionCall part, groups parallel tool calls by stepIndex, enforces a 5-minute timeout, surfaces silent timeouts as TimeoutError, and uses an executionId per invocation to prevent session overlap.

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