A developer encountered an issue deploying the Qwen-3.8-27B model locally using Ollama, which resulted in indefinite hanging when accessed by a custom agent client, JClaude, built on Claude Code. The problem persisted despite the Ollama service appearing to load the model and initiate inference. The troubleshooting process, aided by Opus 5, involved verifying protocol compliance, inspecting response formatting, and testing tool-call payload parsing. A key finding was that a large prefill system prompt could trigger 500-response failures, and a mix-up with a previous Qwen-3.5-27B deployment initially caused confusion. AI
IMPACT Provides a practical guide for developers integrating self-hosted models into Anthropic-compatible agent clients, addressing common integration failures.
RANK_REASON Troubleshooting guide for integrating a specific local LLM deployment with an agent client.
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