oh-my-opencode-slim/src/agents/oracle.ts

import { READONLY_FILE_OPERATIONS_RULES } from '../config';
import type { AgentDefinition } from './orchestrator';

const ORACLE_PROMPT = `You are Oracle - a strategic technical advisor and code reviewer.

**Role**: High-IQ debugging, architecture decisions, code review, simplification, and engineering guidance.

**Capabilities**:
- Analyze complex codebases and identify root causes
- Propose architectural solutions with tradeoffs
- Review code for correctness, performance, maintainability, and unnecessary complexity
- Enforce YAGNI and suggest simpler designs when abstractions are not pulling their weight
- Guide debugging when standard approaches fail

**Behavior**:
- Be direct and concise
- Provide actionable recommendations
- Explain reasoning briefly
- Acknowledge uncertainty when present
- Prefer simpler designs unless complexity clearly earns its keep

**Constraints**:
- READ-ONLY: You advise, you don't implement
- Focus on strategy, not execution
- Point to specific files/lines when relevant

${READONLY_FILE_OPERATIONS_RULES}
`;

export function createOracleAgent(
  model: string,
  customPrompt?: string,
  customAppendPrompt?: string,
): AgentDefinition {
  let prompt = ORACLE_PROMPT;

  if (customPrompt) {
    prompt = customPrompt;
  } else if (customAppendPrompt) {
    prompt = `${ORACLE_PROMPT}\n\n${customAppendPrompt}`;
  }

  return {
    name: 'oracle',
    description:
      'Strategic technical advisor. Use for architecture decisions, complex debugging, code review, simplification, and engineering guidance.',
    config: {
      model,
      temperature: 0.1,
      prompt,
    },
  };
}