{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Jobjakt immutable backlog policy",
  "type": "object",
  "required": ["schemaVersion", "executionEnabled", "minimumCodexVersion", "baselineCommit", "baselineBranch", "remote", "integrationBranch", "stages"],
  "properties": {
    "schemaVersion": {"const": 1},
    "executionEnabled": {"type": "boolean"},
    "minimumCodexVersion": {"type": "string"},
    "baselineCommit": {"type": "string", "pattern": "^[0-9a-f]{40}$"},
    "baselineBranch": {"$ref": "#/$defs/branch"},
    "remote": {"type": "string", "pattern": "^[A-Za-z0-9_-]+$"},
    "integrationBranch": {"$ref": "#/$defs/branch"},
    "stages": {"type": "array", "minItems": 1, "items": {"$ref": "#/$defs/stage"}}
  },
  "$defs": {
    "branch": {"type": "string", "pattern": "^(codex|feature|planning|test)/[A-Za-z0-9][A-Za-z0-9/_-]*$"},
    "strings": {"type": "array", "items": {"type": "string"}},
    "stage": {
      "type": "object",
      "required": ["id", "sequence", "sourcePrompt", "promptSha256", "sourceStatus", "dependencies", "branch", "requiredOwnerApprovals", "retryPolicy", "status", "evidence", "reports", "contextFiles", "checkpoints"],
      "properties": {
        "id": {"type": "string", "pattern": "^[A-Z0-9-]+$"},
        "sequence": {"type": "integer", "minimum": 1},
        "sourcePrompt": {"type": "string"},
        "promptSha256": {"type": "string"},
        "sourceStatus": {"enum": ["VERIFIED", "MISSING", "EMPTY"]},
        "dependencies": {"$ref": "#/$defs/strings"},
        "branch": {"$ref": "#/$defs/branch"},
        "requiredOwnerApprovals": {"$ref": "#/$defs/strings"},
        "retryPolicy": {
          "type": "object", "required": ["maxAttempts", "maxSessions", "backoffSeconds"],
          "properties": {"maxAttempts": {"type": "integer", "minimum": 1, "maximum": 10}, "maxSessions": {"type": "integer", "minimum": 1, "maximum": 100}, "backoffSeconds": {"type": "integer", "minimum": 0, "maximum": 3600}}
        },
        "status": {"enum": ["PENDING", "READY", "RUNNING", "BLOCKED", "AWAITING_APPROVAL", "FAILED", "CONDITIONALLY_ACCEPTED", "ACCEPTED", "COMPLETED"]},
        "evidence": {"type": "array"},
        "reports": {"type": "array"},
        "contextFiles": {"$ref": "#/$defs/strings"},
        "checkpoints": {"type": "array", "minItems": 1, "items": {"$ref": "#/$defs/checkpoint"}}
      }
    },
    "checkpoint": {
      "type": "object",
      "required": ["id", "instruction", "approvalsBefore", "approvalsAfter", "deferrableGates", "requiredArtifacts", "checks", "evidenceRequirements"],
      "properties": {
        "id": {"type": "string", "pattern": "^[A-Za-z0-9-]+$"},
        "instruction": {"type": "string"},
        "approvalsBefore": {"$ref": "#/$defs/strings"},
        "approvalsAfter": {"$ref": "#/$defs/strings"},
        "deferrableGates": {"$ref": "#/$defs/strings"},
        "requiredArtifacts": {"$ref": "#/$defs/strings"},
        "evidenceRequirements": {"$ref": "#/$defs/strings"},
        "checks": {"type": "array", "items": {"$ref": "#/$defs/check"}}
      }
    },
    "check": {
      "type": "object",
      "required": ["id", "argv", "cwd", "report"],
      "properties": {
        "id": {"type": "string", "pattern": "^[A-Za-z0-9-]+$"},
        "argv": {"type": "array", "minItems": 1, "items": {"type": "string"}},
        "cwd": {"type": "string"},
        "configured": {"type": "boolean"},
        "report": {"type": ["object", "null"], "properties": {
          "format": {"enum": ["trx", "jest", "playwright", "junit"]},
          "path": {"type": "string"},
          "minimumPassed": {"type": "integer", "minimum": 1},
          "expectedNames": {"$ref": "#/$defs/strings"}
        }}
      }
    }
  }
}