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Agent skill

Windows Compatibility

by FritzAndFriends in FritzAndFriends/SharpSite

Cross-platform path handling and command patterns. An agent skill from FritzAndFriends/SharpSite.

MITAuto-check passedDevelopment

Install Windows Compatibility

skills CLI
$ npx skills add FritzAndFriends/SharpSite --skill windows-compatibility -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install FritzAndFriends/SharpSite windows-compatibility --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/FritzAndFriends/SharpSite.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.copilot/skills/windows-compatibility .claude/skills/windows-compatibility && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
windows-compatibility
GitHub stars
145
Used in
2 other repos
Token cost
~646 tokens
SKILL.md length
199 words
Files
1
Skills in repo
18
Repo updated
First seen
Licence
MIT

At a glance

Cross-platform path handling and command patterns. An agent skill from FritzAndFriends/SharpSite.

  • Development work in your project
  • SKILL.md covers Context, Patterns, Examples and Anti-Patterns
  • Calls git

What it does

Windows Compatibility is an agent skill from FritzAndFriends/SharpSite. Cross-platform path handling and command patterns

Its SKILL.md is about 650 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development. It works with Git. The repository describes itself as: A basic CMS built with .NET 9 and Blazor. The licence is MIT.

When your agent uses it

  • Development work in your project

Example prompts

  • “/windows-compatibility”

Requirements

  • Node.js

What it can do on your machine

Read from SKILL.md and the folder at commit c35e5e0. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Windows Compatibility loads about 646 tokens when it runs. Until then it costs about 18 tokens; SKILL.md has 199 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~18
When it runs · the whole SKILL.md, loaded when a task matches
~646

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from FritzAndFriends/SharpSite at commit c35e5e0, republished under its MIT licence (© FritzAndFriends). 199 words, ~646 tokens.

Download SKILL.mdSave it as .claude/skills/windows-compatibility/SKILL.md (or your agent's skills folder).
name
windows-compatibility
description
Cross-platform path handling and command patterns
domain
platform
confidence
high
source
earned (multiple Windows-specific bugs: colons in filenames, git -C failures, path separators)

Context

Squad runs on Windows, macOS, and Linux. Several bugs have been traced to platform-specific assumptions: ISO timestamps with colons (illegal on Windows), git -C with Windows paths (unreliable), forward-slash paths in Node.js on Windows.

Patterns

Filenames & Timestamps
  • Never use colons in filenames: ISO 8601 format 2026-03-15T05:30:00Z is illegal on Windows
  • Use safeTimestamp() utility: Replaces colons with hyphens → 2026-03-15T05-30-00Z
  • Centralize formatting: Don't inline .toISOString().replace(/:/g, '-') — use the utility
Git Commands
  • Never use git -C {path}: Unreliable with Windows paths (backslashes, spaces, drive letters)
  • Always cd first: Change directory, then run git commands
  • Check for changes before commit: git diff --cached --quiet (exit 0 = no changes)
Commit Messages
  • Never embed newlines in -m flag: Backtick-n (\n) fails silently in PowerShell
  • Use temp file + -F flag: Write message to file, commit with git commit -F $msgFile
Paths
  • Never assume CWD is repo root: Always use TEAM ROOT from spawn prompt or run git rev-parse --show-toplevel
  • Use path.join() or path.resolve(): Don't manually concatenate with / or \

Examples

✓ Correct:

javascript
// Timestamp utility
const safeTimestamp = () => new Date().toISOString().replace(/:/g, '-').split('.')[0] + 'Z';

// Git workflow (PowerShell)
cd $teamRoot
git add .squad/
if ($LASTEXITCODE -eq 0) {
  $msg = @"
docs(ai-team): session log

Changes:
- Added decisions
"@
  $msgFile = [System.IO.Path]::GetTempFileName()
  Set-Content -Path $msgFile -Value $msg -Encoding utf8
  git commit -F $msgFile
  Remove-Item $msgFile
}

✗ Incorrect:

javascript
// Colon in filename
const logPath = `.squad/log/${new Date().toISOString()}.md`; // ILLEGAL on Windows

// git -C with Windows path
exec('git -C C:\\src\\squad add .squad/'); // UNRELIABLE

// Inline newlines in commit message
exec('git commit -m "First line\nSecond line"'); // FAILS silently in PowerShell

Anti-Patterns

  • Testing only on one platform (bugs ship to other platforms)
  • Assuming Unix-style paths work everywhere
  • Using git -C because it "looks cleaner" (it doesn't work)
  • Skipping git diff --cached --quiet check (creates empty commits)

© FritzAndFriends, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .copilot/skills/windows-compatibility of FritzAndFriends/SharpSite.

Open the folder on GitHubat commit c35e5e0

Used in 2 other repositories

We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in FritzAndFriends/SharpSite, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Windows Compatibility next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Windows Compatibility compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Windows Compatibility this skillFritzAndFriends/SharpSite1452 repos~646Automated safety check: PassMIT
Finishing a Development Branchobra/superpowers297k5 repos~1.9kAutomated safety check: PassMIT
Code Review ChecklistshareAI-lab/learn-claude-code78k4 repos~1.1kAutomated safety check: PassMIT
Code Design Rationale Investigatorcursor/plugins11k9 repos~2.6kAutomated safety check: PassNone
Contributor-First PR MergeHKUDS/OpenHarness16k1 repos~847Automated safety check: PassMIT
Finishing A Development Branchfarm-fe/farm5.6k34 repos~1.8kAutomated safety check: PassMIT

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More from FritzAndFriends/SharpSite

All 18 skills in this repo

  • Architectural Proposals

    FritzAndFriends/SharpSite

    How to write comprehensive architectural proposals that drive alignment before code is written

    145 GitHub starsUsed in 2 repos~1.6k tokens
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  • Client Compatibility

    FritzAndFriends/SharpSite

    Platform detection and adaptive spawning for CLI vs VS Code vs other surfaces

    145 GitHub starsUsed in 2 repos~1.3k tokens
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  • Distributed Mesh

    FritzAndFriends/SharpSite

    How to coordinate with squads on different machines using git as transport

    145 GitHub starsUsed in 2 repos~3.1k tokens
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  • Docs Standards

    FritzAndFriends/SharpSite

    Microsoft Style Guide + Squad-specific documentation patterns

    145 GitHub starsUsed in 2 repos~567 tokens
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  • Economy Mode

    FritzAndFriends/SharpSite

    Shifts Layer 3 model selection to cost-optimized alternatives when economy mode is active.

    145 GitHub starsUsed in 2 repos~1.3k tokens
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  • External Comms

    FritzAndFriends/SharpSite

    PAO workflow for scanning, drafting, and presenting community responses with human review gate

    145 GitHub starsUsed in 2 repos~3.1k tokens
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Works with

Categories

Questions about Windows Compatibility

What does Windows Compatibility do?

Cross-platform path handling and command patterns. An agent skill from FritzAndFriends/SharpSite. Windows Compatibility is an agent skill from FritzAndFriends/SharpSite.

When should I use Windows Compatibility?

Windows Compatibility fits situations like: development work in your project.

How do I install Windows Compatibility in Claude Code?

Run `npx skills add FritzAndFriends/SharpSite --skill windows-compatibility -a claude-code`. Or copy the skill folder (.copilot/skills/windows-compatibility in FritzAndFriends/SharpSite) into .claude/skills/windows-compatibility in your project. Claude Code loads it when a task matches its description.

How do I install Windows Compatibility in Codex?

Run `npx skills add FritzAndFriends/SharpSite --skill windows-compatibility -a codex`. Or copy the skill folder (.copilot/skills/windows-compatibility in FritzAndFriends/SharpSite) into .agents/skills/windows-compatibility in your project. Codex loads it when a task matches its description.

Can I use Windows Compatibility in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add FritzAndFriends/SharpSite --skill windows-compatibility -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/windows-compatibility, .gemini/skills/windows-compatibility, .github/skills/windows-compatibility and .opencode/skills/windows-compatibility in your project.

What does Windows Compatibility need to run?

Going by SKILL.md and its folder, Windows Compatibility needs the command-line tools its instructions call (git). Our summary lists: Node.js.

Does Windows Compatibility access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Windows Compatibility safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Windows Compatibility use?

Windows Compatibility is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Windows Compatibility use?

About 646 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Windows Compatibility?

Skills that share tags, products or a category with Windows Compatibility: Finishing a Development Branch (obra/superpowers, 297k stars), Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars), Code Design Rationale Investigator (cursor/plugins, 11k stars) and Contributor-First PR Merge (HKUDS/OpenHarness, 16k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Windows Compatibility?

FritzAndFriends (a GitHub organization) maintains it in FritzAndFriends/SharpSite, which has 145 GitHub stars. The repository holds 18 skills in this directory. The repository was last updated on April 30, 2026.

Source: FritzAndFriends/SharpSite on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.