Borrowing it
Nothing to install: this file belongs to hoangsonww/DevVerse-SWE-Blog. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/hoangsonww/DevVerse-SWE-Blog/master/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/hoangsonww/DevVerse-SWE-BlogWrote 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.
[](https://agentmods.dev/instructions/hoangsonww/devverse-swe-blog/copilot-instructions)<a href="https://agentmods.dev/instructions/hoangsonww/devverse-swe-blog/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/hoangsonww/devverse-swe-blog/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.
<a href="https://agentmods.dev/instructions/hoangsonww/devverse-swe-blog/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/hoangsonww/devverse-swe-blog/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01949 | $0.01949 |
| Opus 5.5 | $0.00780 | $0.00780 |
| Sonnet 5.5 | $0.00390 | $0.00390 |
| Haiku 4.5 | $0.00195 | $0.00195 |
Grade A, and why
DevVerse-SWE-Blog 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 1mo 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 — 227 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DevVerse SWE Blog - GitHub Copilot Instructions
DevVerse SWE Blog is a modern tech blog built with Next.js, React, TypeScript, MDX, Supabase, and TailwindCSS. It serves as a platform for sharing software engineering insights and technical tutorials.
CRITICAL: Always reference these instructions first and fallback to search or bash commands only when you encounter unexpected information that does not match the info here.
Working Effectively
Bootstrap and Setup
# Install dependencies
npm install # Takes ~30-40 seconds, NEVER CANCEL
ENVIRONMENT VARIABLES REQUIRED:
# Create .env file or set environment variables for development
NEXT_PUBLIC_SUPABASE_URL=https://example.supabase.co # Use stub for development
NEXT_PUBLIC_SUPABASE_ANON_KEY=example_key # Use stub for development
CRITICAL: Without these environment variables, the application will crash with "supabaseUrl is required" error.
Development Server
# Start development server with environment variables
NEXT_PUBLIC_SUPABASE_URL=https://example.supabase.co NEXT_PUBLIC_SUPABASE_ANON_KEY=example_key npm run dev
# OR set environment variables first, then run:
npm run dev # Server starts on http://localhost:3000
- Takes ~1-2 seconds to start
- ALWAYS set environment variables before running dev server
- App crashes without proper Supabase environment variables
Testing and Validation
# Run tests - NEVER CANCEL
npm run test # Takes 1-2 seconds, all 11 tests should pass
# Run tests with coverage
npm run coverage # Takes 1-2 seconds, generates coverage reports
# Run tests in watch mode
npm run test:watch
Linting and Formatting
# Format code (this is also the lint command)
npm run lint # Runs prettier, takes ~1-2 seconds
npm run format # Same as lint, runs prettier --write
ALWAYS run npm run format before committing changes - the CI pipeline will fail without proper formatting.
Build Process
⚠️ CRITICAL BUILD LIMITATION:
npm run build # FAILS in sandboxed environments due to Google Fonts access
NEVER CANCEL the build command - it will timeout due to network restrictions trying to fetch fonts from fonts.googleapis.com. This is expected in sandboxed environments.
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.
- 1mo ago First seen · 227 lines · 1,949 tokens per session scan A c236925c8c79
DevVerse-SWE-Blog copilot-instructions.md is an instructions file published in the GitHub repository hoangsonww/DevVerse-SWE-Blog (15 stars, last pushed 1mo ago), licensed MIT. It adds 1,949 tokens to every session, about $0.0078 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 2026-09-04.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.