What is copilot-repo-template powershell.instructions.md?

A set of coding standards for PowerShell scripts, including formatting, naming, error handling, documentation, and compatibility rules for older and newer PowerShell versions.

Use it when creating or reviewing .ps1 files to check indentation, braces, version compatibility, error handling, and related style requirements.

It gives contributors consistent rules for writing and maintaining PowerShell code across different runtime versions.

How franklesniak/copilot-repo-template configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to franklesniak/copilot-repo-template. 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/franklesniak/copilot-repo-template/main/.github/instructions/powershell.instructions.md

Clone the repo

git clone --depth 1 https://github.com/franklesniak/copilot-repo-template

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/franklesniak/copilot-repo-template/powershell.svg)](https://agentmods.dev/instructions/franklesniak/copilot-repo-template/powershell)

Your own site

<a href="https://agentmods.dev/instructions/franklesniak/copilot-repo-template/powershell"><img src="https://agentmods.dev/badge/instructions/franklesniak/copilot-repo-template/powershell.svg" alt="Measured on agentmods" height="20"></a>

Per session 36,263 This file is loaded in full into every session.

When invoked 36,263 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.

Model	Per session	Once invoked
Fable 5.1	$0.36263	$0.36263
Opus 5	$0.18131	$0.18131
Sonnet 5	$0.07253	$0.07253
Haiku 4.5	$0.03626	$0.03626

Measured 6d ago against content hash fb4321240933, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

copilot-repo-template powershell.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 6d 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/powershell.instructions.md · 2,818 lines

How it starts

The opening of the file, as written. The whole thing — 2,818 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PowerShell Writing Style

Version: 2.22.20260629.0

Metadata

Status: Active
Owner: Repository Maintainers
Last Updated: 2026-06-29
Scope: PowerShell coding standards for all .ps1 files in this repository — style, formatting, naming, error handling, documentation, and compatibility patterns for both legacy (v1.0) and modern (v2.0+) codebases.

Keywords

Per RFC 2119: MUST / SHALL / REQUIRED = absolute requirement; MUST NOT / SHALL NOT = absolute prohibition; SHOULD / RECOMMENDED = strong recommendation (deviations require justification); SHOULD NOT / NOT RECOMMENDED = strong discouragement; MAY / OPTIONAL = truly optional.

Quick Reference Checklist

Scope tags: [All] = all PowerShell versions, [Modern] = PowerShell v2.0+ (requires features not available in v1.0), [v1.0] = backward compatible with Windows PowerShell v1.0. Each item links to its detailed section.

Code Layout and Formatting (Quick Reference)

[All] Code MUST use 4 spaces for indentation, never tabs → Indentation Rules
[All] Opening braces MUST be placed on same line (OTBS) → Brace Placement (OTBS)
[All] catch, finally, else MUST be on same line as closing brace → Exception: catch, finally, and else Keywords
[All] Code MUST use single space around operators, no extra alignment → Operator Spacing and Alignment
[All] Operators MUST NOT be vertically aligned across multiple lines → Operator Spacing and Alignment
[All] Multi-line method parameters MUST have extra indentation → Multi-line Method Indentation
[All] Blank lines SHOULD be used sparingly: two around functions, one within → Blank Line Usage
[All] Blank lines MUST NOT contain any whitespace (spaces or tabs) → Blank Line Usage
[All] Lines MUST NOT end with trailing whitespace → Trailing Whitespace
[All] Variables in strings SHOULD be delimited with ${} or -f operator → Variable Delimiting in Strings
[All] Source .ps1 files MUST be UTF-8 without BOM by default; see File Encoding for the Windows PowerShell/non-ASCII exception
[All] When writing text files programmatically, encoding MUST be specified explicitly; prefer .NET for cross-version UTF-8 without BOM → Programmatic File Writing Encoding
[All] When producing byte-exact text artifacts, serializer output MUST be normalized to LF in memory before writing or comparing → Line Endings for Byte-Exact Text Artifacts
[All] Text-level file comparison MUST read files with Get-Content -Raw or [System.IO.File]::ReadAllText() under a fixed encoding/BOM convention; Get-Content without -Raw MUST NOT be used → Line Endings for Byte-Exact Text Artifacts
[All] True byte-for-byte comparison MUST read files with [System.IO.File]::ReadAllBytes(); this is required for hash/signature inputs and any other byte-exact identity check → Line Endings for Byte-Exact Text Artifacts

Read the full file on GitHub · 2,818 lines

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.

6d ago First seen · 2,818 lines · 36,263 tokens per session scan A fb4321240933

Subscribe to this mod's changes

copilot-repo-template powershell.instructions.md is an instructions file published in the GitHub repository franklesniak/copilot-repo-template (8 stars, last pushed 20d ago), licensed MIT. It adds 36,263 tokens to every session, about $0.1813 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 2026-08-31.

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copilot-repo-template: Instructions file for GitHub Copilot