By scavanna
Simplify recently changed code for clarity, reuse, and efficiency without changing behavior. Primarily for Codex; Claude Code users have built-in /simplify.
Simplify recently written or modified code for clarity, consistency, reuse, and maintainability without changing behavior. Apply three review lenses: reuse, quality, and efficiency. Use when the user asks to simplify, clean up, refine, polish, or make code clearer; after a feature, bug fix, or refactor leaves code working but harder to read; or when changed code feels too nested, repetitive, clever, or inconsistent with the surrounding project style.
Forge a coding or agentic prompt optimized for Claude Opus 4.7 or GPT-5.5 (Codex CLI) by interviewing the user with structured multiple-choice questions, then writing a precise XML-tagged prompt and optional SPEC.md handoff. Use whenever the user asks to write a prompt, scope a coding task, design a system prompt for a coding agent, brainstorm requirements before implementation, or build a SPEC.md for spec-driven development. Invoke even if the user does not say "interview me": if they want help crafting a prompt for Claude Opus 4.7, GPT-5.5, Codex, or any long-horizon coding or agentic task, this is the skill.
Write or refine prompts specifically for GPT-5.5, including Codex CLI runs and Responses API agentic workflows. Use when Claude or another harness needs a high-performance OpenAI-style GPT-5.5 prompt with reasoning.effort, text.verbosity, XML block contracts, persistence, decision rules, completeness contracts, verification loops, tool-use parallelism, and outcome-first acceptance criteria.
Write or refine prompts specifically for Claude Opus 4.7, especially for long-horizon coding, repo implementation, debugging, migrations, tool use, and validation-heavy execution. Use when Codex needs a high-performance Anthropic-style Opus 4.7 prompt with adaptive-thinking, effort, tool-use, XML structure, persistence, concrete acceptance criteria, and local verification guidance.
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Cross-platform agent skills for Claude Code and Codex.
| Skill | Description |
|---|---|
| opus-4-7-prompt-writer | Write or refine prompts for Claude Opus 4.7 for long-horizon coding, debugging, migrations, tool use, and validation-heavy execution. |
| gpt-5-5-prompt-writer | Write or refine prompts for GPT-5.5 / Codex CLI: outcome-first task statements, Codex-style XML blocks, completeness contracts, verification loops, and deliberate reasoning.effort and text.verbosity. |
| forge | Interview-driven prompt forging for Claude Opus 4.7 or GPT-5.5 / Codex coding and agentic tasks. Uses AskUserQuestion in Claude Code or a numbered text fallback in Codex, then outputs a polished XML-tagged prompt (per-target) or a .forge/SPEC.md handoff. |
| code-simplifier | Simplify recently changed code for clarity, reuse, and efficiency without changing behavior. Primarily for Codex (Claude Code has a built-in /simplify). |
/plugin marketplace add yz5e/agent-skills
/plugin install opus-4-7-prompt-writer@yz5e-skills
/plugin install gpt-5-5-prompt-writer@yz5e-skills
/plugin install forge@yz5e-skills
/plugin install code-simplifier@yz5e-skills
Refresh later with /plugin marketplace update yz5e-skills.
Codex auto-discovers skills in ~/.codex/skills. Clone the repo once, then symlink each skill you want:
git clone https://github.com/yz5e/agent-skills ~/src/agent-skills
mkdir -p ~/.codex/skills
ln -s ~/src/agent-skills/skills/opus-4-7-prompt-writer ~/.codex/skills/opus-4-7-prompt-writer
ln -s ~/src/agent-skills/skills/gpt-5-5-prompt-writer ~/.codex/skills/gpt-5-5-prompt-writer
ln -s ~/src/agent-skills/skills/forge ~/.codex/skills/forge
ln -s ~/src/agent-skills/skills/code-simplifier ~/.codex/skills/code-simplifier
Pull updates with git -C ~/src/agent-skills pull.
skills/<skill-name>/SKILL.md with YAML frontmatter name and description..claude-plugin/marketplace.json.claude plugin validate . to check the manifest.MIT. See LICENSE.
npx claudepluginhub scavanna/fork014_agent-skills --plugin opus-4-7-prompt-writerLazy senior dev mode. Forces the simplest, shortest solution that actually works: YAGNI, stdlib first, no unrequested abstractions.
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Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
This skill should be used when users need to generate ideas, explore creative solutions, or systematically brainstorm approaches to problems. Use when users request help with ideation, content planning, product features, marketing campaigns, strategic planning, creative writing, or any task requiring structured idea generation. The skill provides 30+ research-validated prompt patterns across 14 categories with exact templates, success metrics, and domain-specific applications.
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Consult multiple AI coding agents (Gemini, OpenAI, Grok, Perplexity, plus codex, antigravity, and grok CLIs when installed) to get diverse perspectives on coding problems