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.
npx agentmods add instructions/ctout/vscode-copilot-sync/copilot-instructionsgit clone --depth 1 https://github.com/CTOUT/vscode-copilot-syncWhat 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 | $0.01008 | $0.01008 |
| Opus 5 | $0.00504 | $0.00504 |
| Sonnet 5 | $0.00202 | $0.00202 |
| Haiku 4.5 | $0.00101 | $0.00101 |
Grade A, and why
vscode-copilot-sync 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 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.
How it starts
The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copilot Instructions
This repository contains PowerShell scripts that sync Copilot resources from github/awesome-copilot to a local machine and distribute them to the right VS Code/Copilot locations.
Script Workflow
Scripts are designed to be run in this order:
configure.ps1 # Main entry point (chains all steps)
scripts/sync-awesome-copilot.ps1 # 1. Clone/pull github/awesome-copilot → ~/.awesome-copilot/
scripts/init-user.ps1 # 2. User-level resources → prompts\ and ~/.copilot/skills/
scripts/init-repo.ps1 # 3. Interactive per-repo setup → .github/
Resource scopes:
- User-level (all VS Code sessions, no .github/ needed): Agents + Instructions →
%APPDATA%\Code\User\prompts\; Skills →~/.copilot/skills/ - Per-repo (committed to
.github/): Agents, Instructions, Hooks, Workflows, Skills
Key Conventions
Error Handling
All scripts use $ErrorActionPreference = 'Stop' so errors terminate rather than prompt. Use try/catch blocks for recoverable errors — do not rely on error preference for expected failure paths.
Logging
Use the Log / Write-Log function (not Write-Host directly):
Log "Message here" # INFO (Cyan)
Log "Something wrong" 'WARN' # Yellow
Log "Done!" 'SUCCESS' # Green
Log "Failed" 'ERROR' # Red
Dry-Run Pattern
Every destructive operation must be guarded by $DryRun:
if ($DryRun) { Log "[DryRun] Would do X"; return 'would-copy' }
# actual operation here
Change Detection
Always use SHA256 hash comparison before copying — never overwrite blindly:
$srcHash = (Get-FileHash $Src -Algorithm SHA256).Hash
$dstHash = if (Test-Path $dest) { (Get-FileHash $dest -Algorithm SHA256).Hash } else { $null }
if ($srcHash -eq $dstHash) { return 'unchanged' }
Portable Paths
Always use $HOME, $env:APPDATA, and Join-Path — never hardcode user paths:
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.
- 2d ago First seen · 105 lines · 1,008 tokens per session scan A 2fb11b28a67f
vscode-copilot-sync copilot-instructions.md is an instructions file published in the GitHub repository CTOUT/vscode-copilot-sync (4 stars, last pushed 1mo ago), licensed MIT. It adds 1,008 tokens to every session, about $0.0050 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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