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/security.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/security)<a href="https://agentmods.dev/instructions/ivanshtokov/copilot-kit/security"><img src="https://agentmods.dev/badge/instructions/ivanshtokov/copilot-kit/security/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/security"><img src="https://agentmods.dev/badge/instructions/ivanshtokov/copilot-kit/security.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 | $0.00349 | $0.00349 |
| Opus 5.5 | $0.00140 | $0.00140 |
| Sonnet 5.5 | $0.00070 | $0.00070 |
| Haiku 4.5 | $0.00035 | $0.00035 |
Grade A, and why
copilot-kit security.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
Security Standards
🎯 Before Any Security-Sensitive Work
READ: .github/skills/vulnerability-scanner/SKILL.md
🔐 OWASP Top 10 Quick Reference
| Risk | Prevention |
|---|---|
| Injection | Parameterized queries, input validation |
| Broken Auth | Strong passwords, MFA, secure sessions |
| Data Exposure | Encryption at rest and transit |
| XXE | Disable DTD processing |
| Access Control | Least privilege, deny by default |
| Misconfiguration | Secure defaults, remove unused features |
| XSS | Output encoding, CSP headers |
| Deserialization | Validate, avoid untrusted data |
| Components | Audit dependencies, keep updated |
| Logging | Monitor, alert, protect logs |
🔑 Authentication
- Hash passwords with bcrypt/argon2
- Use secure session management
- Implement rate limiting
- Support MFA for sensitive actions
📝 Input Validation
// Validate ALL inputs at API boundary
const schema = z.object({
email: z.string().email(),
password: z.string().min(8),
});
const validated = schema.parse(input);
🚫 Never Do
- Store passwords in plain text
- Use
eval()with user input - Expose internal errors
- Trust client-side validation alone
- Hardcode secrets in code
- Log sensitive 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 · 54 lines · 349 tokens per session scan A 3187a76c6511
copilot-kit security.instructions.md is an instructions file published in the GitHub repository ivanshtokov/copilot-kit (4 stars, last pushed 9mo ago), licensed MIT. It adds 349 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 security.instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| copilot-kit security.instructions.mdivanshtokov/copilot-kit | Instructions file | 4 | 9mo ago | MIT | A | 349 | 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 |