llm-ide-rules: Instructions file for GitHub Copilot

.github/instructions/shell-scripts.instructions.md

llm-ide-rules shell-scripts.instructions.md is an instructions file for GitHub Copilot from iloveitaly/llm-ide-rules. It costs 106 tokens per session, scanned A, original, MIT.

A set of project instructions for shell scripts, especially scripts written for the Z shell (zsh) or Bash. It tells a coding agent how to handle errors, organise environment variables, and document scripts.

In plain words
What is it for?
Use it when creating or editing shell scripts that need strict error handling, clear descriptions, grouped logic, and explanations for conditional exits.
Why use it?
It keeps shell scripts consistent and makes failures and script structure easier to understand.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is iloveitaly/llm-ide-rules's own configuration. It tells GitHub Copilot how to work on llm-ide-rules 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 llm-ide-rules configures →

Reuse

Borrowing it

Nothing to install: this file belongs to iloveitaly/llm-ide-rules. 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/iloveitaly/llm-ide-rules/master/.github/instructions/shell-scripts.instructions.md
Clone the repo
git clone --depth 1 https://github.com/iloveitaly/llm-ide-rules

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 llm-ide-rules shell-scripts.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/iloveitaly/llm-ide-rules/shell-scripts/github.svg)](https://agentmods.dev/instructions/iloveitaly/llm-ide-rules/shell-scripts)
Your own site
<a href="https://agentmods.dev/instructions/iloveitaly/llm-ide-rules/shell-scripts"><img src="https://agentmods.dev/badge/instructions/iloveitaly/llm-ide-rules/shell-scripts/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 llm-ide-rules shell-scripts.instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/iloveitaly/llm-ide-rules/shell-scripts"><img src="https://agentmods.dev/badge/instructions/iloveitaly/llm-ide-rules/shell-scripts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 106 This file is loaded in full into every session.
When invoked 106 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 $0.00106 $0.00106
Opus 5.5 $0.00042 $0.00042
Sonnet 5.5 $0.00021 $0.00021
Haiku 4.5 $0.00011 $0.00011

Measured 7d ago against content hash 0618de5ab270, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

llm-ide-rules shell-scripts.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 7d 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/shell-scripts.instructions.md · 12 lines

What it actually says

Shell Scripts

  • Prefer zsh (assume latest version) over bash when you are certain it exists
  • Prefer stricter error handling over silent failure.
  • Hoist common environment variables to the top of the script.
  • Add a Description: comment at the top of the script to describe what the script does. 1-4 lines max.
  • Document conditional exits with a one-line explanation if it's not obvious.
  • Add line breaks between logical groups of code.
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. 7d ago First seen · 12 lines · 106 tokens per session scan A 0618de5ab270

Subscribe to this mod's changes

llm-ide-rules shell-scripts.instructions.md is an instructions file published in the GitHub repository iloveitaly/llm-ide-rules (13 stars, last pushed yesterday), licensed MIT. It adds 106 tokens to every session, about $0.0004 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 2026-10-16.

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