Borrowing it
Nothing to install: this file belongs to kanazawazawa/copilot-agent-workspace. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/kanazawazawa/copilot-agent-workspace/master/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/kanazawazawa/copilot-agent-workspaceWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/kanazawazawa/copilot-agent-workspace/copilot-instructions)<a href="https://agentmods.dev/instructions/kanazawazawa/copilot-agent-workspace/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/kanazawazawa/copilot-agent-workspace/copilot-instructions/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/kanazawazawa/copilot-agent-workspace/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/kanazawazawa/copilot-agent-workspace/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00663 | $0.00663 |
| Opus 5.5 | $0.00265 | $0.00265 |
| Sonnet 5.5 | $0.00133 | $0.00133 |
| Haiku 4.5 | $0.00066 | $0.00066 |
Grade A, and why
copilot-agent-workspace copilot-instructions.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Copilot 共通ルール
このファイルは GitHub Copilot のすべてのインタラクションに自動適用される共通ルールです。
言語
- 回答は日本語で行う
- 技術用語は英語のまま使用してよい（例: MCP, SDK, API）
- ユーザーが英語で質問した場合は英語で回答する
回答スタイル
- 簡潔で構造的な回答を優先する
- Markdown の見出し・箇条書き・テーブルを活用する
- 長文の段落より、短い箇条書きを使う
- コードブロックには言語を明示する
調査・情報提供
- 推測でなく、公式ドキュメントや信頼できるソースに基づいて回答する
- 情報源がある場合は URL を添える
- 不確かな情報には「※未確認」等の注記をつける
- MS Learn のドキュメントを調べるときは、microsoft-docs MCP サーバーを優先的に使う
ドキュメント作成
- 作成するドキュメントは「そのまま使える」品質を目指す
- 対象読者を意識した表現を使う
- 技術者向け: 具体的・正確に
- 経営層向け: ビジネスインパクト中心に
- 図表は Mermaid 記法や Markdown テーブルで表現する
ファイル出力ルール
- すべての成果物は
output/配下に保存する- 調査結果 →
output/research/YYYY-MM-DD_HHmmss_テーマ名/report.md - 顧客調査 →
output/customers/企業名/profile.md - 提案書・報告書 →
output/documents/YYYY-MM-DD_HHmmss_ドキュメント名/document.md - SVGスライド →
output/slides/YYYY-MM-DD_HHmmss_スライド名/slide01.svg〜
- 調査結果 →
- 日時は必ず日本時間（JST / Asia/Tokyo）で生成する
- Markdown を主要フォーマットとする（再利用性・検索性・差分管理のため）
- ファイル名にスペースを使わない（
_または-で区切る） - フォルダ内の主要ファイルは用途別に命名する（
report.md/profile.md/document.md）
やらないこと
- 聞かれていないことを勝手に追加しない
- 過度に丁寧な前置き・謝罪・フィラーを入れない
- 「お手伝いできます」等の不要な枕詞を省く
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 50 lines · 663 tokens per session scan A b7431e334ff6
copilot-agent-workspace copilot-instructions.md is an instructions file published in the GitHub repository kanazawazawa/copilot-agent-workspace (5 stars, last pushed 5mo ago), licensed MIT. It adds 663 tokens to every session, about $0.0027 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
copilot-agent-workspace copilot-instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| copilot-agent-workspace copilot-instructions.mdkanazawazawa/copilot-agent-workspace | Instructions file | 5 | 5mo ago | MIT | A | 663 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |