{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://ludi-agent-kit/context-pack.schema.json",
  "title": "ludi-agent-kit Context Pack v1",
  "type": "object",
  "required": ["task", "goal", "constraints", "relevant_files", "expected_output"],
  "additionalProperties": false,
  "properties": {
    "version": { "const": 1 },
    "capability": { "type": "string", "pattern": "^[a-z][a-z0-9-]*$" },
    "produced_by": { "type": "string" },
    "budget": {
      "type": "object",
      "additionalProperties": false,
      "properties": { "max_tokens": { "type": "integer", "minimum": 1 } }
    },
    "discovery": {
      "type": "object",
      "required": ["status"],
      "additionalProperties": false,
      "properties": {
        "status": { "enum": ["found", "partial", "none"] },
        "note": { "type": "string" }
      },
      "description": "Optional. status=none permits an empty relevant_files (greenfield/new-module tasks)."
    },
    "task": { "type": "string", "minLength": 1 },
    "goal": { "type": "string", "minLength": 1 },
    "constraints": { "type": "array", "items": { "type": "string", "minLength": 1 } },
    "relevant_files": {
      "type": "array",
      "description": "minItems 1 unless discovery.status is none (enforced by the validator via the if/then below).",
      "items": {
        "type": "object",
        "required": ["path"],
        "additionalProperties": false,
        "properties": {
          "path": { "type": "string", "minLength": 1 },
          "reason": { "type": "string" },
          "lines": { "type": "string", "pattern": "^[0-9]+-[0-9]+$" },
          "create": { "type": "boolean", "description": "File does not exist yet; the coder may create it." }
        }
      }
    },
    "relevant_snippets": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["path", "content"],
        "additionalProperties": false,
        "properties": {
          "path": { "type": "string", "minLength": 1 },
          "lines": { "type": "string", "pattern": "^[0-9]+-[0-9]+$" },
          "language": { "type": "string" },
          "content": { "type": "string" }
        }
      }
    },
    "repo_rules": { "type": "array", "items": { "type": "string", "minLength": 1 } },
    "observed_errors": { "type": "array", "items": { "type": "string", "minLength": 1 } },
    "test_commands": { "type": "array", "items": { "type": "string", "minLength": 1 } },
    "previous_attempts": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["summary"],
        "additionalProperties": false,
        "properties": {
          "summary": { "type": "string", "minLength": 1 },
          "outcome": { "type": "string" }
        }
      }
    },
    "expected_output": { "type": "string", "minLength": 1 }
  },
  "if": { "properties": { "discovery": { "properties": { "status": { "const": "none" } }, "required": ["status"] } }, "required": ["discovery"] },
  "then": {},
  "else": { "properties": { "relevant_files": { "minItems": 1 } } }
}