Agent skill

coding-agents

Guide for invoking external coding agents (Codex, Claude Code, Gemini) from the CLI to review code, perform tasks, or get second opinions. Use when the user wants to delegate work to another AI agent, run code reviews externally, or needs help choosing between available coding agents.

View SKILL.md on GitHub Repository
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Install this agent skill to your Project

npx add-skill https://github.com/vaayne/agent-kit/tree/main/skills/coding-agents

Metadata

Additional technical details for this skill

os 
[
    "darwin",
    "linux"
]

SKILL.md

Coding Agents CLI Guide

Agent Overview

Agent Command Default Model Best For
Codex codex gpt-5.4 Code review, sandboxed exec
Claude Code claude Opus 4.6 Multi-file tasks, agentic workflows
Gemini gemini Gemini 2.5 One-shot prompts (not installed)

cc is a local shell alias for claude with Bedrock + bypass permissions. Use claude when cc is unavailable.

Claude Code Models (claude --model)

Alias Use When
opus Complex refactors, architecture, multi-file
sonnet Default — 80% of tasks, good speed/quality
haiku Simple lookups, boilerplate, bulk queries

Quick Reference

bash
# Code review
codex review --uncommitted            # Independent review
codex review --base main              # Review against branch
claude -p "Review uncommitted changes"

# One-shot tasks
codex exec "Fix the failing test"
claude -p "Explain what src/index.ts does"
claude --model haiku -p "Summarize this file"

# Interactive
codex --full-auto                     # Sandboxed, approval on-request
claude
claude --model sonnet

# Resume / continue sessions
codex resume --last                   # Resume last Codex session
claude -c                             # Continue last Claude session
claude -r                             # Pick a Claude session to resume

# Piping
git diff | claude -p "Review this diff"
git diff | codex review -

Tips

  • Second opinion: codex review --uncommitted — different model family eliminates self-bias
  • Model override: codex -m gpt-5.4, claude --model opus/sonnet/haiku. Codex models depend on account type.
  • Cost control: claude -p --max-budget-usd 1.00 caps spending
  • Turn limit: claude -p --max-turns 3 limits agentic loops in print mode

Detailed References

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