{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "CLI Surface Diff Schema",
  "description": "Schema for comparing CLI surface between pi-mono and Rust Pi",
  "type": "object",
  "properties": {
    "schema": {
      "type": "string",
      "const": "pi.cli_surface_diff.v1"
    },
    "generated_at": {
      "type": "string",
      "format": "date-time"
    },
    "pi_mono_baseline": {
      "type": "object",
      "properties": {
        "commit": { "type": "string" },
        "version": { "type": "string" }
      },
      "required": ["commit", "version"]
    },
    "rust_pi_version": {
      "type": "object",
      "properties": {
        "commit": { "type": "string" },
        "version": { "type": "string" }
      },
      "required": ["commit", "version"]
    },
    "flags": {
      "type": "array",
      "items": {
        "$ref": "#/definitions/FlagDiff"
      }
    },
    "subcommands": {
      "type": "array",
      "items": {
        "$ref": "#/definitions/SubcommandDiff"
      }
    },
    "summary": {
      "type": "object",
      "properties": {
        "total_flags": { "type": "integer" },
        "identical": { "type": "integer" },
        "divergent": { "type": "integer" },
        "missing_in_rust": { "type": "integer" },
        "missing_in_mono": { "type": "integer" },
        "intentionally_removed": { "type": "integer" }
      },
      "required": ["total_flags", "identical", "divergent", "missing_in_rust", "missing_in_mono", "intentionally_removed"]
    }
  },
  "required": ["schema", "generated_at", "pi_mono_baseline", "rust_pi_version", "flags", "subcommands", "summary"],
  "definitions": {
    "FlagDiff": {
      "type": "object",
      "properties": {
        "name": { "type": "string" },
        "short": { "type": ["string", "null"] },
        "takes_value": { "type": "boolean" },
        "optional_value": { "type": "boolean" },
        "default_value": { "type": ["string", "null"] },
        "env_var": { "type": ["string", "null"] },
        "description": { "type": ["string", "null"] },
        "classification": {
          "type": "string",
          "enum": ["identical", "divergent", "missing_in_rust", "missing_in_mono", "intentionally_removed"]
        },
        "action": {
          "type": "string",
          "enum": ["MATCH", "IMPLEMENT", "RETIRE", "DOCUMENT_AS_INTENTIONAL"]
        },
        "notes": { "type": ["string", "null"] }
      },
      "required": ["name", "takes_value", "classification", "action"]
    },
    "SubcommandDiff": {
      "type": "object",
      "properties": {
        "name": { "type": "string" },
        "description": { "type": ["string", "null"] },
        "classification": {
          "type": "string",
          "enum": ["identical", "divergent", "missing_in_rust", "missing_in_mono", "intentionally_removed"]
        },
        "action": {
          "type": "string",
          "enum": ["MATCH", "IMPLEMENT", "RETIRE", "DOCUMENT_AS_INTENTIONAL"]
        },
        "notes": { "type": ["string", "null"] }
      },
      "required": ["name", "classification", "action"]
    }
  }
}