dotfiles: Instructions file for GitHub Copilot

.github/copilot-instructions.md

dotfiles copilot-instructions.md is an instructions file for GitHub Copilot from pjvds/dotfiles. It costs 713 tokens per session, scanned B, original, no licence file.

A set of Copilot instructions for a dotfiles repository, including a rule to work directly on the master branch. Dotfiles are configuration files used to customise development tools or an operating system.

In plain words
What is it for?
It is for guiding work in that repository, including its branch and project-work conventions.
Why use it?
It gives the coding agent repository-specific rules to follow while editing the dotfiles project.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is pjvds/dotfiles's own configuration. It tells GitHub Copilot how to work on dotfiles 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 dotfiles configures →

Reuse

Borrowing it

Nothing to install: this file belongs to pjvds/dotfiles. 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/pjvds/dotfiles/master/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/pjvds/dotfiles

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 dotfiles copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/pjvds/dotfiles/copilot-instructions/github.svg)](https://agentmods.dev/instructions/pjvds/dotfiles/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/pjvds/dotfiles/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/pjvds/dotfiles/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.

agentmods 80×15 button for dotfiles copilot-instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/pjvds/dotfiles/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/pjvds/dotfiles/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 713 This file is loaded in full into every session.
When invoked 713 The same file — it is already loaded in full.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00713 $0.00713
Opus 5.5 $0.00285 $0.00285
Sonnet 5.5 $0.00143 $0.00143
Haiku 4.5 $0.00071 $0.00071

Measured 14d ago against content hash 149dbadf630d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

dotfiles copilot-instructions.md scanned grade B with 1 finding 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 14d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

1. Rebuild: `sudo darwin-rebuild switch --flake .#$(hostname -s)` (or
.github/copilot-instructions.md · 63 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 14d ago Changed · +55 lines · +641 tokens per session scan A → B 149dbadf630d
  2. 1mo ago First seen · 8 lines · 72 tokens per session scan A ae2963329429

Subscribe to this mod's changes

dotfiles copilot-instructions.md is an instructions file published in the GitHub repository pjvds/dotfiles (23 stars, last pushed yesterday), with no licence file. It adds 713 tokens to every session, about $0.0029 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-25.

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