GitHub-Copilot-Bootcamp markdown.instructions.md

Writing rules for Markdown files in a curriculum repository. Markdown is a plain-text format commonly used for documentation.

In plain words
What is it for?
Use them when writing or editing curriculum Markdown, especially when using British English or citing information from online sources.
Why use it?
They keep spelling, grammar, punctuation, tone, and external fact-checking consistent across the repository.

Instructions file for GitHub Copilot

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/pwd9000-ml/github-copilot-bootcamp/markdown
Clone the repo
git clone --depth 1 https://github.com/Pwd9000-ML/GitHub-Copilot-Bootcamp

Made for: GitHub Copilot.

Per session 116 This file is loaded in full into every session.
When invoked 116 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00116 $0.00116
Opus 5 $0.00058 $0.00058
Sonnet 5 $0.00023 $0.00023
Haiku 4.5 $0.00012 $0.00012

Measured 2d ago against content hash 25173a7d99f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

GitHub-Copilot-Bootcamp markdown.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 2d 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/instructions/markdown.instructions.md · 15 lines

What it actually says

Language

  • Use British English spelling and grammar throughout. Common substitutions: "customise" not "customize", "behaviour" not "behavior", "organisation" not "organization".
  • Do not use em dashes (—). Start a new sentence or use a comma instead.
  • Do not use emojis.

External references

  • When referencing facts or external information, verify that sources are correct and cite verifiable online sources.
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. 2d ago First seen · 15 lines · 116 tokens per session scan A 25173a7d99f0

Subscribe to this mod's changes

GitHub-Copilot-Bootcamp markdown.instructions.md is an instructions file published in the GitHub repository Pwd9000-ML/GitHub-Copilot-Bootcamp (23 stars, last pushed 3mo ago), licensed MIT. It adds 116 tokens to every session, about $0.0006 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 2026-08-30.