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openclaw - 💡(How to fix) Fix Gemini 3.1 Pro Preview stalls with tool-heavy sessions after v2026.5.9-beta.1 (#79668) [1 comments, 2 participants]

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openclaw/openclaw#80308•Fetched 2026-05-11 03:16:28
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Environment

  • OpenClaw v2026.5.9-beta.1 (0d3141e)
  • Linux/WSL2 6.6.87.2-microsoft-standard-WSL2 (x64)
  • Node v22.22.0
  • Google provider: direct API key, google-generative-ai API
  • Model: gemini-3.1-pro-preview

Expected behavior

PR #79668 ("retry stalled Gemini 3 preview direct API-key streams with coding tools") should resolve Gemini 3.1 Pro timeouts in sessions with coding/tool schemas.

Actual behavior

Gemini 3.1 Pro Preview consistently stalls (0 tokens generated) in any session that includes tool schemas, even clean isolated subagent sessions with no prior conversation history.

Steps to reproduce

  1. Configure gemini-3.1-pro-preview as primary model with direct API key auth
  2. Spawn an isolated subagent with a multi-tool task (exec, web_search, read, memory_search)
  3. Subagent times out with 0 tokens generated

Additional context

  • Direct Google API calls work fine (266K tokens in 11s confirmed)
  • @google/genai SDK works fine with full system prompt + 30 tools + thinking enabled
  • Fresh /new sessions with zero history also stall on Gemini 3.1 Pro
  • Gemini 2.5 Pro and 2.0 Flash work fine through the same OpenClaw provider path
  • Issue originally observed May 6, 2026 — beta.1 fix did not resolve it
  • Also discovered "heartbeat model bleed" as a secondary issue (heartbeat.isolatedSession: true fixed that separately)

Possibly related

  • #79668 (the fix this beta targets)
  • #79750 (Gemini 3 Flash catalog rows)

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Expected behavior

PR #79668 ("retry stalled Gemini 3 preview direct API-key streams with coding tools") should resolve Gemini 3.1 Pro timeouts in sessions with coding/tool schemas.

#api#conversation history#prompt issue#agent setup#task chaining

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