{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://intentfirst.ai/spec/context-grammar.schema.json",
  "title": "Context Grammar — Token State Schema",
  "description": "JSON Schema for a complete Context Grammar token state. Source of truth for the rule engine input.",
  "version": "1.0.0",
  "type": "object",
  "required": [
    "physical_state",
    "cognitive_load",
    "social_exposure",
    "priority_weight",
    "form_factor",
    "feasibility",
    "autonomy_dial",
    "disclosure_dial"
  ],
  "additionalProperties": false,
  "properties": {
    "physical_state": {
      "title": "Physical State",
      "description": "User's current bodily state — posture, mobility, hand availability.",
      "type": "string",
      "enum": [
        "stationary_both_hands",
        "stationary_one_hand",
        "walking",
        "transit_passive",
        "driving",
        "exercising",
        "lying_down"
      ],
      "x-reality-level": 4,
      "x-detectable-today": true
    },
    "cognitive_load": {
      "title": "Cognitive Load",
      "description": "Estimated mental bandwidth. Never directly measured — inferred from behavioral signals.",
      "type": "string",
      "enum": ["low", "moderate", "high", "overloaded"],
      "x-reality-level": 2,
      "x-detectable-today": false
    },
    "social_exposure": {
      "title": "Social Exposure",
      "description": "Who can currently see or hear the device output.",
      "type": "string",
      "enum": [
        "private",
        "trusted_partner",
        "family_with_children",
        "social_acquaintances",
        "public"
      ],
      "x-reality-level": 4,
      "x-detectable-today": true
    },
    "priority_weight": {
      "title": "Priority Weight",
      "description": "Resolves collisions when multiple demands compete. Two layers: token urgency + Brain tradeoff patterns.",
      "type": "string",
      "enum": ["critical", "high", "standard", "low"],
      "x-reality-level": 3,
      "x-detectable-today": true
    },
    "form_factor": {
      "title": "Form Factor",
      "description": "Available display surface and input modality.",
      "type": "string",
      "enum": [
        "phone_handheld",
        "phone_folded",
        "phone_unfolded",
        "tablet",
        "tv_display",
        "fridge_display",
        "car_display",
        "watch",
        "desktop_monitor"
      ],
      "x-reality-level": 4,
      "x-detectable-today": true
    },
    "feasibility": {
      "title": "Feasibility",
      "description": "Reality filter — what is actually possible right now (inventory, budget, time, weather).",
      "type": "string",
      "enum": ["fully_feasible", "partially_feasible", "infeasible"],
      "x-reality-level": 3,
      "x-detectable-today": true
    },
    "autonomy_dial": {
      "title": "Autonomy Dial",
      "description": "How much autonomous authority the AI has. Per-domain, per-person, temporally-evolving.",
      "type": "string",
      "enum": ["suggest", "confirm", "notify", "auto"],
      "x-reality-level": 3,
      "x-detectable-today": true,
      "x-three-forces": ["service_default", "ai_adjustment", "user_active_change"]
    },
    "disclosure_dial": {
      "title": "Disclosure Dial",
      "description": "How much personal data the AI can access. Prerequisite for Autonomy.",
      "type": "string",
      "enum": ["none", "minimal", "moderate", "full"],
      "x-reality-level": 2,
      "x-detectable-today": false,
      "x-prerequisite-for": "autonomy_dial"
    }
  },
  "x-cross-token-rules": [
    {
      "name": "Driving safety override",
      "if": { "properties": { "physical_state": { "const": "driving" } } },
      "then": "ui_density capped to low; voice-only; no manual interaction"
    },
    {
      "name": "Disclosure-Autonomy logical gate",
      "rule": "autonomy_dial level MUST NOT exceed disclosure_dial ceiling",
      "ceilings": {
        "none": null,
        "minimal": "suggest",
        "moderate": "notify",
        "full": "auto"
      }
    },
    {
      "name": "Cognitive overload protection",
      "if": { "properties": { "cognitive_load": { "const": "overloaded" } } },
      "then": "max_choices: 1; defer non-critical; suppress standard/low priority"
    },
    {
      "name": "Public privacy cascade",
      "if": { "properties": { "social_exposure": { "const": "public" } } },
      "then": "treat disclosure as minimal regardless of setting"
    }
  ],
  "examples": [
    {
      "physical_state": "stationary_both_hands",
      "cognitive_load": "moderate",
      "social_exposure": "private",
      "priority_weight": "standard",
      "form_factor": "phone_handheld",
      "feasibility": "fully_feasible",
      "autonomy_dial": "confirm",
      "disclosure_dial": "moderate"
    },
    {
      "physical_state": "driving",
      "cognitive_load": "high",
      "social_exposure": "private",
      "priority_weight": "high",
      "form_factor": "car_display",
      "feasibility": "fully_feasible",
      "autonomy_dial": "notify",
      "disclosure_dial": "moderate"
    }
  ]
}