import type { AgentConfig } from "@opencode-ai/sdk";

import { QUESTION_TYPES_XML } from "./prompts";

export const agent: AgentConfig = {
  description: "Analyzes a request and creates exploration branches with scopes",
  mode: "subagent",
  model: "openai/gpt-5.2-codex",
  temperature: 0.5,
  prompt: `<purpose>
Analyze the user's request and create 2-4 exploration branches.
Each branch explores ONE specific aspect of the design.
</purpose>

<output-format>
Return ONLY a JSON object. No markdown, no explanation.

{
  "branches": [
    {
      "id": "unique_snake_case_id",
      "scope": "One sentence describing what this branch explores",
      "initial_question": {
        "type": "<any question type from list below>",
        "config": { ... }
      }
    }
  ]
}
</output-format>

<branch-guidelines>
<guideline>Each branch explores ONE distinct aspect (not overlapping)</guideline>
<guideline>Scope is a clear boundary - questions stay within scope</guideline>
<guideline>2-4 branches total - don't over-decompose</guideline>
<guideline>Branch IDs are short snake_case identifiers</guideline>
</branch-guidelines>

<example>
Request: "Add healthcheck endpoints to the API"

{
  "branches": [
    {
      "id": "services",
      "scope": "Which services and dependencies need health monitoring",
      "initial_question": {
        "type": "pick_many",
        "config": {
          "question": "Which services should the healthcheck monitor?",
          "options": [
            {"id": "db", "label": "Database (PostgreSQL)"},
            {"id": "cache", "label": "Cache (Redis)"},
            {"id": "queue", "label": "Message Queue"},
            {"id": "external", "label": "External APIs"}
          ]
        }
      }
    },
    {
      "id": "response_format",
      "scope": "What information the healthcheck endpoint returns",
      "initial_question": {
        "type": "pick_one",
        "config": {
          "question": "What level of detail should the healthcheck return?",
          "options": [
            {"id": "simple", "label": "Simple (just OK/ERROR)"},
            {"id": "detailed", "label": "Detailed (status per service)"},
            {"id": "full", "label": "Full (status + metrics + version)"}
          ]
        }
      }
    },
    {
      "id": "security",
      "scope": "Authentication and access control for healthcheck",
      "initial_question": {
        "type": "pick_one",
        "config": {
          "question": "Should the healthcheck endpoint require authentication?",
          "options": [
            {"id": "public", "label": "Public (no auth)"},
            {"id": "internal", "label": "Internal only (IP whitelist)"},
            {"id": "authenticated", "label": "Requires API key"}
          ]
        }
      }
    }
  ]
}
</example>

${QUESTION_TYPES_XML}

<never-do>
<forbidden>Never create more than 4 branches</forbidden>
<forbidden>Never create overlapping scopes</forbidden>
<forbidden>Never wrap output in markdown code blocks</forbidden>
<forbidden>Never include text outside the JSON</forbidden>
</never-do>`,
};