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john-peslar-ai-skills: Instructions file for GitHub Copilot

.github/copilot-instructions.md

john-peslar-ai-skills copilot-instructions.md is an instructions file for GitHub Copilot from jpeslar1/john-peslar-ai-skills. It costs 276 tokens per session, scanned A, original, MIT.

Repository instructions for creating public coding-agent skills that follow the SKILL.md format and marketplace rules.

In plain words
What is it for?
Use them when adding or reviewing skills, writing their documentation, and updating repository marketplace files.
Why use it?
They give contributors a clear structure and writing standard, while helping prevent missing metadata, private details, and inconsistent marketplace listings.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file. Also seen: mentions .claude-plugin; mentions Claude Code; mentions Codex.

This is jpeslar1/john-peslar-ai-skills's own configuration. It tells GitHub Copilot how to work on john-peslar-ai-skills 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 john-peslar-ai-skills configures →

not rated 12repo +1 18d ago A scan 276 tokens original MIT
View source ↗ jpeslar1/john-peslar-ai-skills
Reuse

Borrowing it

Nothing to install: this file belongs to jpeslar1/john-peslar-ai-skills. 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/jpeslar1/john-peslar-ai-skills/main/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/jpeslar1/john-peslar-ai-skills

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.

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README.md
[![agentmods](https://agentmods.dev/badge/instructions/jpeslar1/john-peslar-ai-skills/copilot-instructions/github.svg)](https://agentmods.dev/instructions/jpeslar1/john-peslar-ai-skills/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/jpeslar1/john-peslar-ai-skills/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/jpeslar1/john-peslar-ai-skills/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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/jpeslar1/john-peslar-ai-skills/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/jpeslar1/john-peslar-ai-skills/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 276 This file is loaded in full into every session.
When invoked 276 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 $0.00276 $0.00276
Opus 5.5 $0.00110 $0.00110
Sonnet 5.5 $0.00055 $0.00055
Haiku 4.5 $0.00028 $0.00028

Measured 2mo ago against content hash 751347946b1f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

john-peslar-ai-skills 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.

.github/copilot-instructions.md · 32 lines

What it actually says

John Peslar AI Skills Repository Instructions

This repository contains public agent skills for Codex, Claude Code, Cursor, and other tools that support the SKILL.md pattern.

Skill Rules

  • Every skill must live in a root-level folder named exactly like the skill.
  • Every skill folder must include SKILL.md.
  • Frontmatter must include name, description, license, and metadata.
  • name must be lowercase hyphen-case and match the folder.
  • description should include practical trigger phrases.
  • Keep each SKILL.md concise. Move templates, examples, and source notes to references/.
  • Do not include private client details, API keys, internal repo paths, or proprietary credentials.
  • Use MIT license for public skills.

Copy Rules

  • Write direct, practical copy for founders, operators, marketers, and builders.
  • Avoid hype that cannot be backed up.
  • Use normal hyphens instead of em dashes or en dashes.
  • Make every skill useful as a standalone artifact.

Marketplace

When adding a skill, update:

  • README.md
  • EXAMPLES.md if the skill needs a user-facing example
  • .claude-plugin/marketplace.json
  • .agents/plugins/marketplace.json
  • The relevant plugins/<collection>/ folder
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. 2mo ago First seen · 32 lines · 276 tokens per session scan A 751347946b1f

Subscribe to this mod's changes

john-peslar-ai-skills copilot-instructions.md is an instructions file published in the GitHub repository jpeslar1/john-peslar-ai-skills (12 stars, last pushed 18d ago), licensed MIT. It adds 276 tokens to every session, about $0.0011 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.

Building agents
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