{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.logos-gate-core.local/mil_decision_packet_v0_1.schema.json",
  "title": "MIL Decision Packet Profile v0.1",
  "description": "Evaluation-stage exchange profile (MIL-DP-0.1) for representing Logos Gate Core decisions as verifiable packets. Not a certification, not a production standard, not a cryptographic primitive. Signature is not yet a trust anchor in v0.1 (ECHO-VERIFY-compatible, not complete).",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "profile",
    "producer",
    "decision_id",
    "input_hash",
    "rule_hash",
    "decision",
    "state_before",
    "state_after",
    "reason_codes",
    "evidence_refs",
    "audit_ref",
    "disclosure",
    "signature"
  ],
  "properties": {
    "profile": {
      "type": "string",
      "const": "MIL-DP-0.1"
    },
    "producer": {
      "type": "string",
      "minLength": 1
    },
    "decision_id": {
      "type": "string",
      "minLength": 1,
      "description": "Per-execution identifier. Excluded from packet_hash core."
    },
    "input_hash": {
      "type": "string",
      "pattern": "^sha256:[0-9a-f]{64}$",
      "description": "Hash of the gate input (request). Reused from the gate's stable_hash; prefixed sha256:."
    },
    "rule_hash": {
      "type": "string",
      "pattern": "^sha256:[0-9a-f]{64}$",
      "description": "Hash of the effective policy/rules. Reused from the gate's policy_hash; prefixed sha256:."
    },
    "decision": {
      "type": "string",
      "enum": ["PASS", "HOLD", "FAIL", "FREEZE", "UNDEFINED"],
      "description": "MIL canonical minimal verdict subset. Native ESCALATE maps to HOLD (with RC_ESCALATION_REQUIRED); the gate does not currently emit FREEZE or UNDEFINED."
    },
    "state_before": {
      "type": "string",
      "minLength": 1
    },
    "state_after": {
      "type": "string",
      "minLength": 1
    },
    "reason_codes": {
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 1
      },
      "description": "MIL reason codes. Stored ascending-sorted and de-duplicated. See profile spec section 5 for the v0.1 dictionary."
    },
    "evidence_refs": {
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 1
      },
      "description": "Evidence references. May be empty. Stored ascending-sorted and de-duplicated."
    },
    "audit_ref": {
      "type": "string",
      "minLength": 1,
      "description": "Pointer to the durable audit record (e.g. worm://...). Excluded from packet_hash core."
    },
    "disclosure": {
      "type": "object",
      "additionalProperties": false,
      "required": ["public", "private_redacted", "explain_due_at"],
      "properties": {
        "public": { "type": "boolean" },
        "private_redacted": { "type": "boolean" },
        "explain_due_at": {
          "oneOf": [
            { "type": "string", "format": "date-time" },
            { "type": "null" }
          ]
        }
      },
      "description": "Disclosure metadata. Excluded from packet_hash core."
    },
    "signature": {
      "type": "object",
      "additionalProperties": false,
      "required": ["present", "alg", "kid"],
      "properties": {
        "present": { "type": "boolean" },
        "alg": {
          "oneOf": [
            { "type": "string", "minLength": 1 },
            { "type": "null" }
          ]
        },
        "kid": {
          "oneOf": [
            { "type": "string", "minLength": 1 },
            { "type": "null" }
          ]
        }
      },
      "description": "Packet-output signature block. Excluded from packet_hash core. NOT a trust anchor in v0.1; default {present:false, alg:null, kid:null}. Distinct from input-side signature (see profile spec D-3)."
    },
    "packet_hash": {
      "type": "string",
      "pattern": "^sha256:[0-9a-f]{64}$",
      "description": "Optional. sha256 over the canonical deterministic core. When present, must equal the recomputed core hash."
    }
  },
  "allOf": [
    {
      "if": {
        "properties": { "decision": { "const": "PASS" } },
        "required": ["decision"]
      },
      "then": {},
      "else": {
        "properties": {
          "reason_codes": { "minItems": 1 }
        }
      }
    }
  ]
}