copilot-agent-workspace: Instructions file for GitHub Copilot

.github/copilot-instructions.md

copilot-agent-workspace copilot-instructions.md is an instructions file for GitHub Copilot from kanazawazawa/copilot-agent-workspace. It costs 663 tokens per session, scanned A, original, MIT.

A set of shared instructions for GitHub Copilot in a specific workspace. It defines Japanese-language responses, concise formatting, source-based research, and rules for producing documents in an output directory.

In plain words
What is it for?
Use it to guide Copilot when answering questions, researching technical topics, writing documents, naming files, and organizing deliverables.
Why use it?
It keeps Copilot's answers and generated files consistent with the repository's language, research, formatting, and storage requirements.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is kanazawazawa/copilot-agent-workspace's own configuration. It tells GitHub Copilot how to work on copilot-agent-workspace itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything copilot-agent-workspace configures →

Reuse

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.

Copy the file
curl -O https://raw.githubusercontent.com/kanazawazawa/copilot-agent-workspace/master/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/kanazawazawa/copilot-agent-workspace

Made for: GitHub Copilot.

Wrote 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.

agentmods badge for copilot-agent-workspace copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/kanazawazawa/copilot-agent-workspace/copilot-instructions.svg)](https://agentmods.dev/instructions/kanazawazawa/copilot-agent-workspace/copilot-instructions)
Your own site
<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="Measured on agentmods" height="20"></a>
Per session 663 This file is loaded in full into every session.
When invoked 663 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00663 $0.00663
Opus 5 $0.00331 $0.00331
Sonnet 5 $0.00133 $0.00133
Haiku 4.5 $0.00066 $0.00066

Measured 6d ago against content hash b7431e334ff6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

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 6d 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.

.github/copilot-instructions.md · 50 lines

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
  • 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
Changes

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.

  1. 6d ago First seen · 50 lines · 663 tokens per session scan A b7431e334ff6

Subscribe to this mod's changes

copilot-agent-workspace copilot-instructions.md is an instructions file published in the GitHub repository kanazawazawa/copilot-agent-workspace (5 stars, last pushed 3mo ago), licensed MIT. It adds 663 tokens to every session, about $0.0033 per session on Opus 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.

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