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arbor: Instructions file for GitHub Copilot

.github/copilot-instructions.md

arbor copilot-instructions.md is an instructions file for GitHub Copilot from getArbor-dev/arbor. It costs 1,131 tokens per session, scanned C, original, MIT.

A project-specific instruction set for building a Tauri 2 desktop application with a Rust backend and Svelte interface. It describes required setup, scaffolding, compilation, running, and documentation steps.

In plain words
What is it for?
Use it when creating or continuing this Tauri and Svelte project, installing its setup, compiling it, running it, and checking that documentation is complete.
Why use it?
It gives a coding agent an ordered checklist so important project setup and verification tasks are not missed.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is getArbor-dev/arbor's own configuration. It tells GitHub Copilot how to work on arbor 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 arbor configures →

not rated 158repo 2mo ago C scan 1,131 tokens original MIT
View source ↗ getArbor-dev/arbor getarbor.dev
Reuse

Borrowing it

Nothing to install: this file belongs to getArbor-dev/arbor. 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/getArbor-dev/arbor/main/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/getArbor-dev/arbor

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 arbor copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/getarbor-dev/arbor/copilot-instructions/github.svg)](https://agentmods.dev/instructions/getarbor-dev/arbor/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/getarbor-dev/arbor/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/getarbor-dev/arbor/copilot-instructions/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 arbor copilot-instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/getarbor-dev/arbor/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/getarbor-dev/arbor/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,131 This file is loaded in full into every session.
When invoked 1,131 The same file — it is already loaded in full.
Security scan C 1 finding. 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 $0.01131 $0.01131
Opus 5.5 $0.00452 $0.00452
Sonnet 5.5 $0.00226 $0.00226
Haiku 4.5 $0.00113 $0.00113

Measured 2mo ago against content hash e61308c6e0fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

arbor copilot-instructions.md scanned grade C with 1 finding 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 2mo 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- Use this file to provide workspace-specific custom instructions to Copilot. For more details, visit https://code.visualstudio.com/docs/copilot/copilot-customization#_use-a-githubcopilotinstructionsmd-file -->
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.github/copilot-instructions.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

  • Verify that the copilot-instructions.md file in the .github directory is created. (Created with checklist for Tauri Lattice setup)

  • Clarify Project Requirements (Tauri v2 + Rust backend + Svelte frontend for Lattice Personal OS with Arbor integration, MCP tools, system tray - from previous query; no ask needed)

  • Scaffold the Project

  • Customize the Project

  • Install Required Extensions (None specified by get_project_setup_info for 'other'; skipped)

  • Compile the Project

  • Create and Run Task

  • Launch the Project

  • Ensure Documentation is Complete

Read the full file on GitHub · 104 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.

  1. 2mo ago First seen · 104 lines · 1,131 tokens per session scan C e61308c6e0fe

Subscribe to this mod's changes

arbor copilot-instructions.md is an instructions file published in the GitHub repository getArbor-dev/arbor (158 stars, last pushed 2mo ago), licensed MIT. It adds 1,131 tokens to every session, about $0.0045 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

FrontendLanguagesRustVue and Svelteai-toolsastcode-analysiscode-analysis-tooldeveloper-toolsflutter
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