Borrowing it
Nothing to install: this file belongs to obviousworks/vibe-coding-ai-rules. 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/obviousworks/vibe-coding-ai-rules/main/ide-specific/github-copilot/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/obviousworks/vibe-coding-ai-rulesWrote 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/obviousworks/vibe-coding-ai-rules/copilot-instructions)<a href="https://agentmods.dev/instructions/obviousworks/vibe-coding-ai-rules/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/obviousworks/vibe-coding-ai-rules/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/obviousworks/vibe-coding-ai-rules/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/obviousworks/vibe-coding-ai-rules/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 | $0.00424 | $0.00424 |
| Opus 5.5 | $0.00170 | $0.00170 |
| Sonnet 5.5 | $0.00085 | $0.00085 |
| Haiku 4.5 | $0.00042 | $0.00042 |
Grade A, and why
vibe-coding-ai-rules 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 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.
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.
What it actually says
{{PROJECT_NAME}}
Project Overview
{{PROJECT_DESCRIPTION}}
Architecture: {{ARCHITECTURE_TYPE}} Language: {{PRIMARY_LANGUAGE}} ({{LANGUAGE_VERSION}}) Framework: {{PRIMARY_FRAMEWORK}}
Tech Stack
- Frontend: {{FRONTEND_FRAMEWORKS}}
- Backend: {{BACKEND_FRAMEWORKS}}
- Database: {{DATABASE}}
- Testing: {{TESTING_FRAMEWORK}}
- Package Manager: {{PACKAGE_MANAGER}}
DO NOT Use
- {{BANNED_DEPENDENCY_1}} (use {{ALTERNATIVE_1}} instead)
- {{BANNED_DEPENDENCY_2}} (use {{ALTERNATIVE_2}} instead)
Core Principles
- Clarify Before Coding: Understand requirements before writing code. Ask questions when intent is unclear. No code without clear goals.
- Simplicity First: Choose the simplest viable solution. Complex patterns need explicit justification. Readable code over clever code.
- Security By Default: Validate all inputs. No secrets in code. Defense in depth. Least privilege principle.
- Test-Driven Thinking: Design all code to be testable from inception. Write tests alongside code. Verify before committing.
Setup Commands
{{INSTALL_COMMAND}}
{{DEV_COMMAND}}
{{TEST_COMMAND}}
{{BUILD_COMMAND}}
Workflow
- Atomic changes: small, self-contained modifications
- Conventional commits:
type(scope): description - Only modify files directly related to the current task
- Never add new dependencies without explicit approval or compelling justification
- Use file-scoped commands. Reference docs instead of pasting. Optimize context window usage.
- Follow established conventions for the relevant language and tech stack
- Comment only complex logic or critical functions. Avoid documenting the obvious.
- After generating code, argue against your own solution. Check for redundancy, unnecessary complexity, or simpler alternatives.
When Uncertain
- Ask clarifying questions before implementing
- Reference existing patterns in the codebase
- Start small and iterate
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.
- 2mo ago First seen · 51 lines · 424 tokens per session scan A 905be5f7dcfd
vibe-coding-ai-rules copilot-instructions.md is an instructions file published in the GitHub repository obviousworks/vibe-coding-ai-rules (96 stars, last pushed 4mo ago), licensed MIT. It adds 424 tokens to every session, about $0.0017 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 2026-08-30.
vibe-coding-ai-rules copilot-instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| vibe-coding-ai-rules copilot-instructions.mdobviousworks/vibe-coding-ai-rules | Instructions file | 96 | 4mo ago | MIT | A | 424 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |