{
  "format": "pts-steering",
  "format_version": "1",
  "hook": "block_output",
  "base_model": "Qwen/Qwen3.5-0.8B",
  "compatible_models": [],
  "hidden_size": 1024,
  "num_layers": 24,
  "default_alpha": 1.0,
  "positions": "all",
  "behavior": "thinking-loops",
  "layers": [
    {
      "layer": 15,
      "op": "ablate",
      "tensor": "layers.15.ablate",
      "ref_norm": null
    },
    {
      "layer": 19,
      "op": "ablate",
      "tensor": "layers.19.ablate",
      "ref_norm": null
    }
  ],
  "provenance": {
    "method": "direction removal (ablate), converted to a runtime steering vector",
    "source": "Direction recovered from the p50c weight edit in Takehi, Teoh, Zhang and Khattab, 'Sparks of Weight-Space Programming' (2026), made by GPT-6 Astra; logs https://github.com/RikiyaT/lm_understand-logs (CC BY 4.0).",
    "recovery": "Top left singular vector of the edit to model.language_model.layers.{15,19}.mlp.down_proj.weight"
  },
  "validation": {
    "summary": "Reduces thinking loops. Same 100 problems: MATH-500 18 \u2192 46 correct, IFEval 45 \u2192 58. Thinking on, presence penalty 1.5.",
    "chat_template_args": {
      "enable_thinking": true
    },
    "sampling": {
      "temperature": 0.6,
      "top_p": 0.95,
      "top_k": 20,
      "presence_penalty": 1.5,
      "presence_context": "whole context"
    },
    "max_tokens": 32768,
    "example_prompt": "What is the capital of Australia, and why isn't it Sydney? Answer in two sentences."
  }
}