{ "model_file": "Meltdown_Q8.gguf", "description": "Meltdown APE agent model — Q8_0 quantized GGUF for local tool-calling harnesses", "base_model": "Qwen2.5-Coder-3B-Instruct (fine-tuned, exported Q8_0)", "quantization": "q8_0", "multimodal": false, "inference": { "ctx_size": 32000, "max_output_tokens": 16384, "cache_type_k": "q8_0", "cache_type_v": "q8_0", "gpu_layers": -1, "threads": 4, "temperature": 0.2, "top_p": 0.95, "top_k": 40 }, "harness": { "system_prompt_file": "system_prompt.txt", "append_tool_catalog_at_runtime": true, "append_sandbox_context_at_runtime": true, "tool_result_header_format": "[Tool result — {tool_name}]:", "max_agent_rounds": 24, "stop_after_tool_call_close_tag": true }, "notes": [ "Use temperature 0.1–0.3 for reliable APE tags and tool_call JSON.", "Append tool list and sandbox paths to the system prompt at session start.", "max_output_tokens should be >= 16384 during agent loops to avoid truncated tool calls.", "gpu_layers: -1 means offload all layers (llama.cpp convention); adjust to your VRAM." ] }