{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://developers.ecocitizenz.com/schemas/action-envelopes/reciprocal-reliance-envelope.schema.json",
  "title": "Reciprocal Reliance Envelope",
  "description": "Both-sides agent <-> MCP/tool context. Read-only. Presents public posture and guidance only. ECZ-ID does not decide whether an agent may spend, transact, or call tools.",
  "type": "object",
  "required": [
    "type",
    "version",
    "agent_subject",
    "mcp_subject",
    "policy_hint",
    "recommended_posture_paths",
    "external_authorisation",
    "authority_boundary",
    "local_policy_decides",
    "recheck_before_reliance",
    "no_safety_or_approval_inference",
    "verifier_writes_truth",
    "verifier_activates_proof",
    "verifier_marks_bound"
  ],
  "additionalProperties": true,
  "properties": {
    "type": { "const": "ecz.reciprocal_reliance_envelope" },
    "version": { "type": "string" },
    "agent_subject": {
      "type": ["object", "null"],
      "properties": {
        "target": { "type": "string" },
        "target_type": { "type": "string" },
        "posture": { "type": "string" }
      }
    },
    "mcp_subject": {
      "type": ["object", "null"],
      "properties": {
        "target": { "type": "string" },
        "target_type": { "type": "string" },
        "posture": { "type": "string" }
      }
    },
    "policy_hint": { "type": "string", "enum": ["OPEN", "PREFER", "REQUIRE"] },
    "recommended_posture_paths": { "type": "array", "items": { "type": "string" } },
    "external_authorisation": { "const": "not_determined_by_eczid" },
    "authority_boundary": { "type": "string" },
    "local_policy_decides": { "const": true },
    "recheck_before_reliance": { "const": true },
    "no_safety_or_approval_inference": { "const": true },
    "verifier_writes_truth": { "const": false },
    "verifier_activates_proof": { "const": false },
    "verifier_marks_bound": { "const": false }
  }
}