Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/allxsmith/bestax/agents-mdgit clone --depth 1 https://github.com/allxsmith/bestaxWrote 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/allxsmith/bestax/agents-md)<a href="https://agentmods.dev/instructions/allxsmith/bestax/agents-md"><img src="https://agentmods.dev/badge/instructions/allxsmith/bestax/agents-md.svg" alt="Measured on agentmods" 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 | $0.00293 | $0.00293 |
| Opus 5 | $0.00147 | $0.00147 |
| Sonnet 5 | $0.00059 | $0.00059 |
| Haiku 4.5 | $0.00029 | $0.00029 |
Grade A, and why
bestax 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 3d 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
bestax — agent guide
TypeScript-first React component library for Bulma v1 (@allxsmith/bestax-bulma), a project
scaffolder (create-bestax), and the Docusaurus source of https://bestax.io. pnpm + Turborepo
monorepo.
- Contributing to this repo? Read
CLAUDE.md— toolchain, commands, quality gates, and commit conventions. It applies to all agents, not just Claude. - Using the library? Fetch https://bestax.io/llms.txt (curated docs index) or https://bestax.io/llms-full.txt (complete docs in one file). Every docs page is also served as raw markdown — see https://bestax.io/docs/guides/llms.
- Agent Skills (layout scaffolding, forms, theming, custom components) live in
skills/:npx skills add https://github.com/allxsmith/bestax --skill <name> - Security posture? Signed provenance, OIDC trusted publishing, Socket.dev on every PR,
SHA-pinned actions, blocked install scripts, 3-day cooldown. Full:
SECURITY.md· https://bestax.io/docs/guides/security
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.
- 3d ago First seen · 17 lines · 293 tokens per session scan A cffd9d8c376f
bestax AGENTS.md is an instructions file published in the GitHub repository allxsmith/bestax (11 stars, last pushed 3d ago), licensed MIT. It adds 293 tokens to every session, about $0.0015 per session on Opus 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
next.js 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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heroui AGENTS.md
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recharts AGENTS.md
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magicui AGENTS.md
Instructions for magicuidesign/magicui, covering project context, key principles, before writing code, rules and accessibility (a11y).
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Claude Code instructions for chakra-ui/ark, covering ark ui - claude development guide, documentation structure, quick start, common commands and install dependencies.