{
  "_comment": "blackhole unified configuration v2 — ~/.pi/agent/pi-blackhole/pi-blackhole-config.json",
  "_all_settings_in_one_file": true,
  "_new_keys": "compaction, compactionEngine, tailBehavior, sessionFallback — new config surface",
  "_renamed": "was example-config-v2.json; old example-config.json → example-config-old.json",

  "compaction": "auto",
  "compactionEngine": "blackhole",
  "tailBehavior": "minimal",

  "model": {
    "_comment": "Base model (last fallback before session model).",
    "provider": "openrouter",
    "id": "google/gemma-4-31b-it:free",
    "thinking": "low",
    "cooldownHours": 6
  },

  "observerModel": {
    "_comment": "Observer primary: Qwen3 Next 80B via OpenRouter free (strong extraction with reasoning).",
    "provider": "openrouter",
    "id": "qwen/qwen3-next-80b-a3b-instruct:free",
    "thinking": "low",
    "cooldownHours": 12
  },
  "observerFallbackModels": [
    {
      "_comment": "Observer fallback 1: Gemma 4 31B via Ollama Cloud.",
      "provider": "ollama",
      "id": "gemma4:31b-cloud",
      "thinking": "off",
      "cooldownHours": 6
    },
    {
      "_comment": "Observer fallback 2: Gemma 4 31B via OpenRouter free tier.",
      "provider": "openrouter",
      "id": "google/gemma-4-31b-it:free",
      "thinking": "off",
      "cooldownHours": 6
    }
  ],

  "reflectorModel": {
    "_comment": "Reflector primary: GPT OSS 120B via Cerebras (strong reasoning for synthesis).",
    "provider": "cerebras",
    "id": "gpt-oss-120b",
    "thinking": "low",
    "cooldownHours": 12
  },
  "reflectorFallbackModels": [
    {
      "_comment": "Reflector fallback 1: GLM-4.7 via z.ai with thinking enabled.",
      "provider": "zai",
      "id": "glm-4.7",
      "thinking": "low",
      "cooldownHours": 6
    },
    {
      "_comment": "Reflector fallback 2: GPT OSS 120B via OpenRouter free tier.",
      "provider": "openrouter",
      "id": "openai/gpt-oss-120b:free",
      "thinking": "low",
      "cooldownHours": 6
    }
  ],

  "dropperModel": {
    "_comment": "Dropper primary: GPT OSS 120B via Cerebras (judgment/prioritization).",
    "provider": "cerebras",
    "id": "gpt-oss-120b",
    "thinking": "off",
    "cooldownHours": 12
  },
  "dropperFallbackModels": [
    {
      "_comment": "Dropper fallback 1: GLM-4.7 via z.ai.",
      "provider": "zai",
      "id": "glm-4.7",
      "thinking": "low",
      "cooldownHours": 6
    },
    {
      "_comment": "Dropper fallback 2: GPT OSS 120B via OpenRouter free tier.",
      "provider": "openrouter",
      "id": "openai/gpt-oss-120b:free",
      "thinking": "low",
      "cooldownHours": 6
    }
  ],

  "observeAfterTokens": 15000,
  "reflectAfterTokens": 25000,
  "compactAfterTokens": 81000,
  "observationsPoolMaxTokens": 20000,
  "observationsPoolTargetTokens": 10000,
  "reflectorInputMaxTokens": 80000,
  "dropperInputMaxTokens": 80000,
  "observerChunkMaxTokens": 40000,
  "observerPreambleMaxTokens": 0,
  "agentMaxTurns": 16,

  "memory": true,
  "sessionFallback": true,
  "debug": false,
  "debugLog": false,

  "_notes": [
    "v2 config surface:",
    "  compaction (auto|manual|off) — how compaction triggers",
    "  compactionEngine (blackhole|pi-default) — who handles it",
    "  tailBehavior (pi-default|minimal) — how much stays visible",
    "  sessionFallback (true|false) — if false, skip session model as last-resort fallback",
    "",
    "Backward compat: old keys (overrideDefaultCompaction, noAutoCompact, passive)",
    "are migrated to new keys at load time.",
    "",
    "Env overrides:",
    "  PI_BLACKHOLE_PASSIVE=1  → compaction:off + memory:false",
    "  PI_BLACKHOLE_COMPACTION  → override compaction setting",
    "  PI_BLACKHOLE_COMPACTION_ENGINE → override compactionEngine setting"
  ]
}