Install the "project-guidelines-example" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/project-guidelines-example into .claude/skills/project-guidelines-example/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-guidelines-example", then confirm the skill loads.
Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
skills CLI
$ npx skills add affaan-m/ECC --skill project-guidelines-example -a codex
Project install goes to .agents/skills/; add -g for ~/.codex/skills/.
Install the "project-guidelines-example" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/project-guidelines-example into .agents/skills/project-guidelines-example/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-guidelines-example", then confirm the skill loads.
Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add affaan-m/ECC --skill project-guidelines-example -a cursor
Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.
Install the "project-guidelines-example" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/project-guidelines-example into .cursor/skills/project-guidelines-example/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-guidelines-example", then confirm the skill loads.
Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
skills CLI
$ npx skills add affaan-m/ECC --skill project-guidelines-example -a gemini-cli
Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.
Install the "project-guidelines-example" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/project-guidelines-example into .gemini/skills/project-guidelines-example/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-guidelines-example", then confirm the skill loads.
Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
skills CLI
$ npx skills add affaan-m/ECC --skill project-guidelines-example -a github-copilot
Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.
Install the "project-guidelines-example" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/project-guidelines-example into .github/skills/project-guidelines-example/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-guidelines-example", then confirm the skill loads.
GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add affaan-m/ECC --skill project-guidelines-example -a opencode
OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
Install the "project-guidelines-example" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/ja-JP/skills/project-guidelines-example into .opencode/skills/project-guidelines-example/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "project-guidelines-example", then confirm the skill loads.
OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
Skill name
project-guidelines-example
GitHub stars
275k
Token cost
~2k tokens
SKILL.md length
111 words
Files
1
Skills in repo
645
Repo updated
First seen
Licence
MIT
At a glance
Project-specific skill template covering architecture, patterns, testing, and deployment guidance.
Works in 8 steps: 絵文字なし - コード、コメント、ドキュメントに絵文字を使用しない → 不変性 - オブジェクトや配列を変更しない → TDD - 実装前にテストを書く → …
Tasks that involve Software architecture
SKILL.md covers 使用するタイミング, アーキテクチャの概要, ファイル構造 and コードパターン, plus 4 more sections
Calls npm, poetry and gcloud; reaches xxx.supabase.co; needs NEXT_PUBLIC_SUPABASE_ANON_KEY and ANTHROPIC_API_KEY
What it does
Project Guidelines Example is an agent skill from affaan-m/ECC. Project-specific skill template covering architecture, patterns, testing, and deployment guidance.
Its SKILL.md is about 2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Testing & QA, covering Software architecture and Skill authoring. The repository describes itself as: The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. The licence is MIT.
When your agent uses it
Tasks that involve Software architecture
Tasks that involve Skill authoring
Example prompts
“/project-guidelines-example”
Requirements
Python 3
A credential in NEXT_PUBLIC_SUPABASE_ANON_KEY
A credential in ANTHROPIC_API_KEY
Workflow steps
8 steps, taken from the first numbered list in SKILL.md.
1絵文字なし - コード、コメント、ドキュメントに絵文字を使用しない
2不変性 - オブジェクトや配列を変更しない
3TDD - 実装前にテストを書く
480%カバレッジ - 最低基準
5小さなファイル多数 - 通常200-400行、最大800行
6console.log禁止 - 本番コードには使用しない
7適切なエラー処理 - try/catchを使用
8入力検証 - Pydantic/Zodを使用
What it can do on your machine
Read from SKILL.md and the folder at commit ef648e0. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
npm
poetry
gcloud
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
xxx.supabase.co
Also links to:
zenith.chat
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
NEXT_PUBLIC_SUPABASE_ANON_KEY
ANTHROPIC_API_KEY
SUPABASE_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Project Guidelines Example loads about 2k tokens when it runs. Until then it costs about 31 tokens; SKILL.md has 111 words of instructions outside code blocks.
Always· name and description, kept in context so the agent knows when to use it
~31
When it runs· the whole SKILL.md, loaded when a task matches
~2k
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
NoteMentions a .env fileSKILL.md:320
# フロントエンド (.env.local)
NoteMentions a .env fileSKILL.md:325
# バックエンド (.env)
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
# フロントエンドのビルドとデプロイ
cd frontend && npm run build
gcloud run deploy frontend --source .
# バックエンドのビルドとデプロイ
cd backend
gcloud run deploy backend --source .
Project Guidelines Example next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
Project Guidelines Example compared with similar skills
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Project-specific skill template covering architecture, patterns, testing, and deployment guidance. Project Guidelines Example is an agent skill from affaan-m/ECC. Project-specific skill template covering architecture, patterns, testing, and deployment guidance.
When should I use Project Guidelines Example?
Project Guidelines Example fits situations like: tasks that involve Software architecture; tasks that involve Skill authoring.
How do I install Project Guidelines Example in Claude Code?
Run `npx skills add affaan-m/ECC --skill project-guidelines-example -a claude-code`. Or copy the skill folder (docs/ja-JP/skills/project-guidelines-example in affaan-m/ECC) into .claude/skills/project-guidelines-example in your project. Claude Code loads it when a task matches its description.
How do I install Project Guidelines Example in Codex?
Run `npx skills add affaan-m/ECC --skill project-guidelines-example -a codex`. Or copy the skill folder (docs/ja-JP/skills/project-guidelines-example in affaan-m/ECC) into .agents/skills/project-guidelines-example in your project. Codex loads it when a task matches its description.
Can I use Project Guidelines Example in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add affaan-m/ECC --skill project-guidelines-example -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/project-guidelines-example, .gemini/skills/project-guidelines-example, .github/skills/project-guidelines-example and .opencode/skills/project-guidelines-example in your project.
What does Project Guidelines Example need to run?
Going by SKILL.md and its folder, Project Guidelines Example needs the command-line tools its instructions call (npm, poetry and gcloud) and credentials named NEXT_PUBLIC_SUPABASE_ANON_KEY, ANTHROPIC_API_KEY and SUPABASE_KEY. Our summary lists: Python 3; A credential in NEXT_PUBLIC_SUPABASE_ANON_KEY; A credential in ANTHROPIC_API_KEY.
Does Project Guidelines Example access the network?
SKILL.md names 2 domains. In commands or code: xxx.supabase.co; the agent is likely to contact it when it follows the instructions. As links in the text: zenith.chat. This is read from the text; nothing was executed.
Is Project Guidelines Example safe to install?
Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Project Guidelines Example use?
Project Guidelines Example is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Project Guidelines Example use?
About 2k tokens (SKILL.md is roughly 8.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Project Guidelines Example?
Skills that share tags, products or a category with Project Guidelines Example: Skill Architecture Patterns (BingHanOfUESTC/open_agent_team, 106 stars), Nw Roadmap Review Checks (nWave-ai/nWave, 617 stars), Nestjs Best Practices (rolling-scopes/rsschool-app, 10k stars) and Backend Code Review (langgenius/dify, 158k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Project Guidelines Example?
affaan-m (a GitHub user) maintains it in affaan-m/ECC, which has 275,023 GitHub stars. The repository holds 645 skills in this directory. The repository was last updated on October 5, 2026.
Source: affaan-m/ECC on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.