The agent skills, system prompt, and CLI toolkit I use every day with Claude Code, Codex, and other coding agents.
Landing page: https://cskwork.github.io/skills/ · 한국어 요약은 아래에 있습니다.
Pick the skills you want, and which agents to install them on:
npx skills@latest add cskwork/skillsList them without installing:
npx skills@latest add cskwork/skills --listInstall the system prompt (back up your existing ~/.agents/AGENTS.md first):
mkdir -p ~/.agents ~/.claude ~/.codex
curl -fsSL https://raw.githubusercontent.com/cskwork/skills/main/system-prompt/AGENTS.md -o ~/.agents/AGENTS.md
ln -sfn ~/.agents/AGENTS.md ~/.claude/CLAUDE.md
ln -sfn ~/.agents/AGENTS.md ~/.codex/AGENTS.mdsystem-prompt/AGENTS.md is the operating contract I give every coding agent: agree on outcome and scope, ground decisions in evidence, verify, and report plainly. Source of truth: cskwork/THE-SYSTEM-PROMPT.
| Skill | What it does | Source |
|---|---|---|
| sdlc-kit | Gated SDLC loop (intent → spec → plan → build → ship → maintain) with human approvals. | cskwork/sdlc-kit |
| verify-app | Build and run the app to prove a change works end to end. For agents without a built-in verify, such as Codex. | this repo |
| bughunt | Find and fix interaction bugs with seeded personas, invariant oracles, and failure replay. App profiles for games, CRUD apps, AI chat, and media; Godot, native iOS, and web adapters. | cskwork/bughunt-skill |
| quality-loop | Product quality bar and improvement loop: scores UI/UX, function, consumer trust, and engineering against hard floors, gates release candidates with an independent judge, ratchets every fix in a ledger, and reports quality as a % (target >= 90%) with the reason for each lost point. | cskwork/quality-loop-skill |
| db-intelligence | One skill for PostgreSQL, MySQL, SQLite, and MongoDB: detect the engine, connect credential-safe, read schema, read before writing, never write to prod. | cskwork/pi-setup-public |
| sql-walkthrough | Explain SQL/batch logic to a non-expert: numbered source lines, the real rows they read, per-line arithmetic, a results table, and an executed counter-example. | cskwork/sql-walkthrough |
| improve-codebase-architecture | Find deepening opportunities, show them as an HTML report, then grill through the one you pick. | mattpocock/skills |
| prototype | Build a throwaway prototype to answer a design question. | mattpocock/skills |
| retro | Run a retrospective on a coding session. | mattpocock/skills |
| jk | Drive Jenkins from the terminal with the jk CLI: jobs, runs, logs, artifacts, credentials. |
avivsinai/jenkins-cli |
| swiftui-pro | Review SwiftUI code for modern API use, data flow, navigation, accessibility, and performance, with before/after fixes. Pairs with mobile-ui-ux. | twostraws/SwiftUI-Agent-Skill |
| simless | Default way to test iOS apps: render SwiftUI screens as accessibility trees, hot-reload views, and run unit tests on the Mac without a simulator; the simulator is kept for the final pass. | abacusai/simless |
| Skill | What it does | Source |
|---|---|---|
| wait-what | "That last message did not land: re-pitch it." | mattpocock/skills |
| handoff | Compact the conversation into a handoff document for another agent. | mattpocock/skills |
| writing-for-agents | How to write skills, AGENTS.md, and CLAUDE.md for agents. | mattpocock/skills |
| ponytail | Lazy-senior-dev mode: the simplest, shortest solution that actually works. | DietrichGebert/ponytail |
| Skill | What it does | Source |
|---|---|---|
| impeccable | Design, critique, audit, and polish frontend interfaces. | pbakaus/impeccable |
| gpt-image-2 | Generate and edit images with ChatGPT's current image model through your ChatGPT plan and the Codex CLI. Model-agnostic: follows whatever model Codex uses. | agentspace-so/agent-skills (modified) |
| diagram-design | 44 diagram and chart types (architecture, flowchart, sequence, state, ER, timeline, Sankey, and more) as self-contained HTML/SVG/PNG, with Mermaid, .drawio, and .excalidraw import. | cathrynlavery/diagram-design |
| motion-graphics | Code-driven motion-graphics videos: product launch videos (Apple/Google keynote style) from real captures of your running app, and vertical YouTube Shorts, Reels, and TikTok. | cskwork/motion-graphics-skill |
| mobile-ui-ux | Measurable UI/UX rules for iPhone apps, mobile web, and mobile games (touch targets, safe areas, contrast, Korean line breaks, HUD and combat readability), plus a 7-category scoring rubric, an independent-judge prompt, a pre-ship checklist, and per-project overrides. Pairs with impeccable. | written in this repository |
| image-first-ui | Image-first UI: three UX-distinct interface options generated as images through your ChatGPT plan; the one you pick becomes the reference the real build must match. Adds production sizing, stack choice, a domain pattern list, and a release gate with an independent judge. Admin, web app, landing page, or game screens. | written in this repository (image scripts from gpt-image-2) |
| Skill | What it does | Source |
|---|---|---|
| call-agent | Delegate a bounded task to a peer CLI: Codex, Claude, Antigravity, Kiro, NotebookLM, ChatGPT Pro. | cskwork/call-agent |
These skills ship with a tool or a machine setup, so get them from their own home instead of copying them here.
| Skill | What it does | Install |
|---|---|---|
| verify | Claude Code's own /verify: builds and runs your app to confirm a change does what it should. |
Comes with Claude Code (v2.1.200+). Type /verify. |
| ego-browser | Browser for agents that shares your logged-in sessions (ego-lite). | Install the ego lite app, or npx skills add citrolabs/ego-lite |
| hindsight | Shared long-term memory for Claude Code, Codex, and Hermes (hindsight-agent-setup). | curl -fsSL https://raw.githubusercontent.com/cskwork/hindsight-agent-setup/main/bootstrap.sh | bash |
The CLIs around the agents: account switching, status line, Google Workspace, Firebase, Jenkins, and agent runtimes. See toolkit/README.md.
My own files are MIT (LICENSE). Vendored skills keep their own license file in their folder; see THIRD_PARTY.md for sources and the exact commits copied.
매일 쓰는 에이전트 스킬, 시스템 프롬프트(AGENTS.md), CLI 도구 모음입니다. npx skills@latest add cskwork/skills로 원하는 스킬만 골라 설치합니다. 다른 사람이 만든 스킬은 원본 라이선스와 출처를 그대로 유지합니다.