Codex, Cursor and Coding Agents skills for Claude Code and Codex
Skills for working with coding agents other than the one you are in, and for moving between them: migrating instructions and MCP config to Codex, Copilot CLI training and quickstarts, Pi harness setup, goal-mode prompts for Claude Code and Codex, second opinions from Codex, and delegation to Jules, Grok Build and other CLIs. They help a team run more than one agent without rewriting its setup.
Highest-scoring coding agent skills in the October 22, 2026 snapshot: chat-history from mblode/agent-skills (91/100), grok-build from sanjay3290/ai-skills (87/100) and agenttrace-session-audit from luoyuctl/agenttrace (78/100). Scores come from the Suede Skill Check.
- 23 listed skills
- 13 repositories
- 6 with full pages
13 from official publishers. 6 bundle scripts. 1 connect to an outside service. Listed in AI Agents and LLM Engineering (17), Developer Tools and Frameworks (4), Code Review and Code Quality (1), Productivity and Knowledge Work (1).
All 23 coding agent skills
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| Skill | Repository | What it does |
|---|---|---|
| agenttrace-session-audit 78/100 · C | luoyuctl/agenttrace | Audits local AI coding-agent sessions from tools like Claude Code and Codex CLI with agenttrace, checking cost, tokens, tool failures, latency, and anomalies. |
| chat-history 91/100 · A | mblode/agent-skills | Recovers decisions, previous fixes, and research from past AI conversations with source evidence, reading local Claude Code, Codex, Grok, and Cursor history. |
| coding-agent 75/100 · C | swarmclawai/swarmclaw | Delegates coding tasks to external coding agents such as Claude Code, Codex, Pi, and OpenCode via shell, including new features, PR reviews, and refactoring. |
| grok-build 87/100 · B | sanjay3290/ai-skills | Delegates well-specified implementation tasks to xAI's Grok Build CLI running headlessly while the assistant writes task specs, reviews every diff, and owns the result. |
| simple-man 78/100 · C | Maksim-Burtsev/simple-man | Switches to a compact communication mode with no filler, giving terse technical answers and short coding-agent status updates without reducing effort or accuracy. |
| skill-miner 76/100 · C | hqhq1025/skill-optimizer | Mines coding-agent session history, archived transcripts, memories, and repeated local work to discover recurring workflows that should become new Agent Skills. |
| cli-creator 77/100 · C | openai/skills | Build a composable CLI for Codex from API docs, an OpenAPI spec, existing curl examples, an SDK, a web app, an admin tool, or a local script. Use… |
| cli-mastery 69/100 · D | github/awesome-copilot | Interactive training for the GitHub Copilot CLI. Guided lessons, quizzes, scenario challenges, and a full reference covering slash commands… |
| codex-host 69/100 · D | avelikiy/great_cto | Run the great_cto controlled Codex lifecycle with controller-owned writes, verifier evidence, human gates and optional artifact release. |
| copilot-cli-quickstart 68/100 · D | github/awesome-copilot | Use this skill when someone wants to learn GitHub Copilot CLI from scratch. Offers interactive step-by-step tutorials with separate Developer and… |
| goal-prompt 88/100 · B | trailofbits/skills | Drafts copy-paste-ready /goal commands for goal mode in Claude Code and Codex. Use when the user asks to create, write, rewrite, improve, compress… |
| harness-engineering 77/100 · C | github/awesome-copilot | Adopt repository-level harness engineering for coding agents. Use when a user wants to prevent repeated AI coding-agent mistakes by turning failures… |
| jules 84/100 · B | sanjay3290/ai-skills | Delegate coding tasks to Google Jules AI agent for asynchronous execution. Use when user says: 'have Jules fix', 'delegate to Jules', 'send to… |
| lsp-setup 80/100 · B | github/awesome-copilot | Enable code intelligence (go-to-definition, find-references, hover, type info) for any programming language by installing and configuring an LSP… |
| migrate-to-codex 69/100 · D | openai/skills | Migrate supported instruction files, skills, agents, and MCP config into Codex project and global files. |
| napkin 69/100 · D | github/awesome-copilot | Visual whiteboard collaboration for Copilot CLI. Creates an interactive whiteboard that opens in your browser — draw, sketch, add sticky notes, then… |
| nemo-rl-session-memory 82/100 · B | NVIDIA/skills | Manage durable working-session memory for coding agents. Use when a user asks to preserve or recover agent context across disconnects, VS Code… |
| noob-mode 72/100 · C | github/awesome-copilot | Plain-English translation layer for non-technical Copilot CLI users. Translates every approval prompt, error message, and technical output into… |
| openai-docs 79/100 · C | openai/skills | Use when the user asks how to build with OpenAI products or APIs, asks about Codex itself or choosing Codex surfaces, needs up-to-date official… |
| pi-agent 83/100 · B | K-Dense-AI/claude-scientific-skills | Builds with and operates Pi, the minimal terminal coding harness. Use for installing Pi, configuring providers/models/settings/environment… |
| second-opinion 89/100 · B | trailofbits/skills | Gets independent code reviews from Codex or Antigravity for uncommitted changes, branch diffs, and commits. Use when the user requests an external… |
| skill-evaluator 84/100 · B | HeshamFS/materials-simulation-skills | Rigorously evaluate an Agent Skill end-to-end across ANY coding-agent CLI — verify its scripts emit the documented numbers (deterministic checks)… |
| workiq-copilot 69/100 · D | github/awesome-copilot | Guides the Copilot CLI on how to use the WorkIQ CLI/MCP server to query Microsoft 365 Copilot data (emails, meetings, docs, Teams, people) for live… |
How to choose coding agent skills
If you are switching tools, start with a migration skill. migrate-to-codex moves instruction files, skills, agents and MCP config into Codex's layout in one pass.
Cross-agent skills (second-opinion, coding-agent, grok-build, jules) call another product's CLI or API. Each needs that tool installed and signed in, and the Before you install panel lists the variables it reads.
Copilot CLI skills (cli-mastery, copilot-cli-quickstart, noob-mode) are training and onboarding aids. They suit a team rolling the CLI out to people new to terminal agents.
Related topics
Code Assistants 21MCP Servers 82Subagents and Multi-Agent Orchestration 40Agent Tracing and Observability 41Claude Code Setup and Hooks 31Context Engineering and Agent Memory 31Skill Authoring 37Agent Safety and Guardrails 27
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