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copilot-kit: Instructions file for GitHub Copilot

.github/instructions/typescript.instructions.md

copilot-kit typescript.instructions.md is an instructions file for GitHub Copilot from ivanshtokov/copilot-kit. It costs 339 tokens per session, scanned A, original, MIT.

A set of TypeScript and JavaScript coding standards for naming, function design, asynchronous code, errors, and imports.

In plain words
What is it for?
Use it when writing or reviewing TypeScript or JavaScript, including React and Next.js code, especially functions, classes, constants, and async operations.
Why use it?
It makes code more consistent and easier to read, maintain, and review while reducing common error-handling and type-safety problems.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is ivanshtokov/copilot-kit's own configuration. It tells GitHub Copilot how to work on copilot-kit 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 copilot-kit configures →

not rated 4repo 9mo ago A scan 339 tokens original MIT
View source ↗ ivanshtokov/copilot-kit
Reuse

Borrowing it

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

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.

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README.md
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Your own site
<a href="https://agentmods.dev/instructions/ivanshtokov/copilot-kit/typescript"><img src="https://agentmods.dev/badge/instructions/ivanshtokov/copilot-kit/typescript/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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/ivanshtokov/copilot-kit/typescript"><img src="https://agentmods.dev/badge/instructions/ivanshtokov/copilot-kit/typescript.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 339 This file is loaded in full into every session.
When invoked 339 The same file — it is already loaded in full.
Security scan A 0 findings. 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 $0.00339 $0.00339
Opus 5.5 $0.00136 $0.00136
Sonnet 5.5 $0.00068 $0.00068
Haiku 4.5 $0.00034 $0.00034

Measured 2mo ago against content hash c4d52fbae82d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

copilot-kit typescript.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.

.github/instructions/typescript.instructions.md · 43 lines

What it actually says

TypeScript/JavaScript Standards

🎯 Always Follow These Rules

  1. Use TypeScript strict mode when available
  2. Prefer const over let, avoid var
  3. Use async/await over raw promises
  4. Destructure objects and arrays for readability
  5. Add meaningful variable names that reveal intent

📋 Naming Conventions

  • Variables/Functions: camelCase (getUserById, isActive)
  • Classes/Interfaces/Types: PascalCase (UserService, AuthConfig)
  • Constants: SCREAMING_SNAKE_CASE (MAX_RETRIES, API_BASE_URL)
  • Booleans: question form (isActive, hasPermission, canEdit)

🔧 Function Rules

  • Maximum 20 lines per function (ideally 5-10)
  • Maximum 3 arguments (prefer 0-2)
  • Single responsibility - one function = one job
  • No unexpected side effects

🚨 Error Handling

  • Always use try/catch for async operations
  • Provide meaningful error messages
  • Log errors with context
  • Never swallow errors silently

📝 Import Order

  1. External packages (react, next, etc.)
  2. Internal aliases (@/components, @/lib)
  3. Relative imports (./utils, ../hooks)
  4. Type imports (import type { ... })
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 · 43 lines · 339 tokens per session scan A c4d52fbae82d

Subscribe to this mod's changes

copilot-kit typescript.instructions.md is an instructions file published in the GitHub repository ivanshtokov/copilot-kit (4 stars, last pushed 9mo ago), licensed MIT. It adds 339 tokens to every session, about $0.0014 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 2026-08-31.

LanguagesTypeScript
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