ClaudSkills / General / orchestration-frameworks

Copilot Custom Instructions

Q: What is a Claude Code skill and how does the Copilot Custom Instructions skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Copilot Custom Instructions is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: orchestration-frameworks · Last updated: 2026-05-27

tool:github

Configure GitHub Copilot per-repo with custom instructions, reusable prompt files, and custom chat modes — so Copilot follows your project's conventions, frameworks, and style. Trigger when the user mentions Copilot custom instructions, .github/copilot-instructions.md, Copilot prompt files, custom chat modes, agent skills, or tailoring Copilot to a codebase. Sourced from github.com/skills/customize-your-github-copilot-experience.

From the source SKILL.md

Out-of-the-box Copilot has no idea your team uses Drizzle ORM, your auth lives in lib/session.ts, or that comments must be sentence-case. Custom instructions, prompts, and chat modes tell it. The payoff is dramatic — generated code that fits the codebase on the first attempt.

What this skill does

Copilot Custom Instructions is a community-contributed Claude Code skill in the orchestration-frameworks sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/copilot-custom-instructions/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Copilot Custom Instructions Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 92,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/copilot-custom-instructions
curl -L https://claudskills.com/skills/copilot-custom-instructions/SKILL.md \
  -o ~/.claude/skills/copilot-custom-instructions/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/copilot-custom-instructions/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/copilot-custom-instructions/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\copilot-custom-instructions\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Copilot Custom Instructions Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/copilot-custom-instructions/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Copilot Custom Instructions skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Copilot Custom Instructions skill?

Use Copilot Custom Instructions when your Claude Code task falls under the General category — specifically in the orchestration frameworks area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Copilot Custom Instructions" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Copilot Custom Instructions skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Copilot Custom Instructions is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/KunanonJ/codex-skills-hub/blob/HEAD/skills/copilot-custom-instructions/SKILL.md
Author: KunanonJ

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

KunanonJ. (2026). Copilot Custom Instructions [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/copilot-custom-instructions/

BibTeX

@misc{copilot-custom-instructions-2026,
  author    = {KunanonJ},
  title     = {Copilot Custom Instructions [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/copilot-custom-instructions/}
}

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