---

name: forge description: Lean code implementation pair. Claude (Smith) writes code, Gemini (Temper) reviews for bugs, security, and edge cases. ~2x token cost for high-quality code output.

The Forge: Code Implementation Pair

When to Activate

Use this skill when the user requests:

• Code implementation tasks
• Bug fixes requiring quality review
• Feature additions with security considerations
• Any coding task where review overhead is acceptable
• User explicitly mentions "forge", "pair programming", or "implement with review"

Architecture

Pair: Smith + Temper

The Smith (Claude)

• Role: Implementer
• Writes code based on user requirements
• Follows existing patterns in codebase
• Produces complete, working implementation

The Temper (Gemini 3 Pro)

• Role: Adversarial Reviewer
• Reviews Smith's code for bugs
• Checks for security vulnerabilities
• Identifies edge cases and missing error handling
• Returns PASS or FAIL with specific issues

Execution Flow

Copy[User Request]
    ↓
[Smith] → Writes implementation
    ↓
[Temper] → Reviews code
    ↓
    ├── PASS → Return code to user
    └── FAIL → Smith fixes issues → Temper re-reviews

Invocation

Copypython3 ~/.claude/skills/forge/forge.py "Your implementation task"

Options

Copypython3 ~/.claude/skills/forge/forge.py "Your task" --max-iterations 3 --verbose

Example Usage

User: "Add input validation to the login form"

Copypython3 ~/.claude/skills/forge/forge.py "Add input validation to the login form in web/components/auth/LoginForm.tsx - validate email format and password length"

Why This Works

1. Cross-Model Review: Gemini catches Claude's blind spots
2. Lean Overhead: Only 2 agents vs 3+ in other formations
3. Focused Scope: No planning phase - just implement and review
4. Iterative Fix: Failed reviews trigger targeted fixes

Token Efficiency

• ~2x base cost (1 implementation + 1 review)
• Best for: Medium complexity, single-file or few-file changes
• Avoid for: Large architectural changes (use Foundry instead)

Requirements

• Claude Code CLI installed and authenticated (claude command available)
• Gemini CLI installed (gemini command available)
• Python package: rich (for formatted output)