Borrowing it
Nothing to install: this file belongs to vinikjkkj/zapo. 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/vinikjkkj/zapo/master/AGENTS.mdgit clone --depth 1 https://github.com/vinikjkkj/zapoWrote 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/vinikjkkj/zapo/agents-md)<a href="https://agentmods.dev/instructions/vinikjkkj/zapo/agents-md"><img src="https://agentmods.dev/badge/instructions/vinikjkkj/zapo/agents-md/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/vinikjkkj/zapo/agents-md"><img src="https://agentmods.dev/badge/instructions/vinikjkkj/zapo/agents-md.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 | $0.12890 | $0.12890 |
| Opus 5.5 | $0.05156 | $0.05156 |
| Sonnet 5.5 | $0.02578 | $0.02578 |
| Haiku 4.5 | $0.01289 | $0.01289 |
Grade A, and why
zapo AGENTS.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 12d 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 — 964 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md – Development Guide for zapo
Living guide for implementing features in this repository. Keep this file aligned with the real codebase.
1. Non-Negotiable Principles
| Principle | Meaning |
|---|---|
index-first |
Validate protocol behavior against wa-web/ (and wa-mob/ for mobile-specific flows) before implementation. Do not invent tags, attrs, namespaces, or flows. |
performance-first |
Optimize for low CPU, low RAM, and low allocations. Use zero-copy patterns in hot paths. |
async-first |
I/O and network paths must be async. Crypto follows the rule only where benchmarks justify it: X25519/Ed25519 and pbkdf2 stay async (libuv thread pool wins); hashes, AES, HMAC, HKDF are sync (the thread-pool hop costs more than the op). Public APIs should return Promise<T> when work is async. |
no-overengineering |
Avoid abstraction layers without concrete gains. Keep code direct and easy to maintain. |
real-flow-only |
Validate protocol features with real CLI/flow tests, not mock-only behavior. |
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.
- 12d ago Changed · -1 tokens per session 94db1f624123
- 20d ago Changed · +2 lines · +90 tokens per session bf3a9108f019
- 1mo ago Changed · +6 tokens per session 8b54ebadf1c9
- 1mo ago First seen · 962 lines · 12,795 tokens per session scan A 5c19b74d660a
zapo AGENTS.md is an instructions file published in the GitHub repository vinikjkkj/zapo (264 stars, last pushed today), licensed MIT. It adds 12,890 tokens to every session, about $0.0516 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.
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.
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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.