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/multi-backend Command

Backend-focused workflow (Research → Ideation → Plan → Execute → Optimize → Review), Codex-led.

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Command Syntax

/multi-backend <backend task description>
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backend task description
string
required
Description of the backend task (API design, algorithms, database, business logic)

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Collaborative Models

  • Codex - Backend logic, algorithms (Backend authority, trustworthy)
  • Gemini - Frontend perspective (Backend opinions for reference only)
  • Claude (self) - Orchestration, planning, execution, delivery

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Core Workflow

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Phase 0: Prompt Enhancement (Optional)

[Mode: Prepare] - If ace-tool MCP available, call mcp__ace-tool__enhance_prompt

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Phase 1: Research

[Mode: Research] - Understand requirements and gather context
  1. Code Retrieval (if ace-tool MCP available): Call mcp__ace-tool__search_context
  2. Requirement completeness score (0-10): ≥7 continue, <7 stop and supplement

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Phase 2: Ideation

[Mode: Ideation] - Codex-led analysis MUST call Codex:
  • ROLE_FILE: ~/.claude/.ccg/prompts/codex/analyzer.md
  • OUTPUT: Technical feasibility analysis, recommended solutions (at least 2), risk assessment
Save SESSION_ID (CODEX_SESSION) for subsequent phase reuse. Output solutions (at least 2), wait for user selection.

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Phase 3: Planning

[Mode: Plan] - Codex-led planning MUST call Codex (use resume <CODEX_SESSION>):
  • ROLE_FILE: ~/.claude/.ccg/prompts/codex/architect.md
  • OUTPUT: File structure, function/class design, dependency relationships
Claude synthesizes plan, save to .claude/plan/task-name.md after user approval.

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Phase 4: Implementation

[Mode: Execute] - Code development
  • Strictly follow approved plan
  • Follow existing project code standards
  • Ensure error handling, security, performance optimization

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Phase 5: Optimization

[Mode: Optimize] - Codex-led review MUST call Codex:
  • ROLE_FILE: ~/.claude/.ccg/prompts/codex/reviewer.md
  • OUTPUT: Security, performance, error handling, API compliance issues list
Integrate review feedback, execute optimization after user confirmation.

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Phase 6: Quality Review

[Mode: Review] - Final evaluation
  • Check completion against plan
  • Run tests to verify functionality
  • Report issues and recommendations

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Communication Guidelines

  1. Start responses with mode label [Mode: X], initial is [Mode: Research]
  2. Follow strict sequence: Research → Ideation → Plan → Execute → Optimize → Review
  3. Use AskUserQuestion tool for user interaction

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Key Rules

  1. Codex backend opinions are trustworthy
  2. Gemini backend opinions for reference only
  3. External models have zero filesystem write access
  4. Claude handles all code writes and file operations

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Examples

/multi-backend Design and implement user authentication API with JWT
  • Commands: /multi-workflow, /multi-frontend, /multi-plan