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.
curl -O https://raw.githubusercontent.com/ivanshtokov/copilot-kit/main/.github/instructions/testing.instructions.mdgit clone --depth 1 https://github.com/ivanshtokov/copilot-kitWrote 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/ivanshtokov/copilot-kit/testing)<a href="https://agentmods.dev/instructions/ivanshtokov/copilot-kit/testing"><img src="https://agentmods.dev/badge/instructions/ivanshtokov/copilot-kit/testing/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/ivanshtokov/copilot-kit/testing"><img src="https://agentmods.dev/badge/instructions/ivanshtokov/copilot-kit/testing.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 | $0.00339 | $0.00339 |
| Opus 5.5 | $0.00136 | $0.00136 |
| Sonnet 5.5 | $0.00068 | $0.00068 |
| Haiku 4.5 | $0.00034 | $0.00034 |
Grade A, and why
copilot-kit testing.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
Testing Standards
🎯 Before Writing Tests
READ: .github/skills/testing-patterns/SKILL.md
📊 Testing Pyramid
/\ E2E (Few) - Critical user flows
/ \
/----\ Integration (Some) - API, DB
/ \
/--------\ Unit (Many) - Functions, classes
✅ AAA Pattern (Always Use)
// Arrange - Set up test data
const user = createMockUser();
// Act - Execute code under test
const result = await getUserById(user.id);
// Assert - Verify outcome
expect(result).toEqual(user);
📋 Naming Convention
describe('UserService', () => {
describe('getUserById', () => {
it('should return user when found', () => {});
it('should throw NotFoundError when user does not exist', () => {});
it('should handle invalid id gracefully', () => {});
});
});
🎯 What to Test
| ✅ Test | ❌ Don't Test |
|---|---|
| Business logic | Framework code |
| Edge cases | Third-party libs |
| Error handling | Simple getters |
| User-visible behavior | Implementation details |
🔧 Mocking Rules
- Mock external APIs and databases
- Mock time/random for determinism
- Don't mock the code under test
- Use factories for test data
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 · 62 lines · 339 tokens per session scan A f34bcfd146c5
copilot-kit testing.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.
copilot-kit testing.instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| copilot-kit testing.instructions.mdivanshtokov/copilot-kit | Instructions file | 4 | 9mo ago | MIT | A | 339 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
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| 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 |