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/khan/wonder-blocks/agents-mdgit clone --depth 1 https://github.com/Khan/wonder-blocksWhat 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 | $0.01121 | $0.01121 |
| Opus 5 | $0.00561 | $0.00561 |
| Sonnet 5 | $0.00224 | $0.00224 |
| Haiku 4.5 | $0.00112 | $0.00112 |
Grade A, and why
wonder-blocks 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 yesterday.
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 — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Wonder Blocks – Agentic Workflows & Storybook MCP
This file helps AI agents and tools work with the Wonder Blocks design system, including the Storybook MCP server.
Installing the MCP (consumer setup)
If you want to use the Wonder Blocks Storybook MCP from another project (e.g. Cursor, Claude Desktop), you run Wonder Blocks locally and point your MCP client at it.
-
Clone the Wonder Blocks repo (if you haven’t already):
git clone [email protected]:Khan/wonder-blocks.git cd wonder-blocks -
Install dependencies and start Storybook (the MCP server runs inside Storybook):
pnpm install pnpm startKeep this process running. Storybook (and the MCP) will be available at
http://localhost:6061. -
Configure your MCP client to use the local MCP endpoint. Add a server entry that uses the HTTP transport and the URL below.
Example
mcp.json(Cursor and other clients that support HTTP):{ "mcpServers": { "wonder-blocks": { "url": "http://localhost:6061/mcp" } } }Use
http://localhost:6061/mcpas the MCP server URL. No API keys or auth are required for local use.
Note: The MCP is only available while Storybook is running (pnpm start). If you stop Storybook, your MCP client will lose the connection until you start it again.
Storybook MCP server
Wonder Blocks uses @storybook/addon-mcp so agents can discover components, list stories, and use docs tooling.
When it’s available
- The MCP server runs inside the Storybook dev server.
- Start Storybook with:
pnpm start(orpnpm start:storybook). - Storybook (and the MCP endpoint) are only available while that process is running.
MCP endpoint
| Environment | Storybook UI | MCP endpoint |
|---|---|---|
| Local dev | http://localhost:6061 | http://localhost:6061/mcp |
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.
- yesterday First seen · 98 lines · 1,121 tokens per session scan A 32f9e4d7abcc
wonder-blocks AGENTS.md is an instructions file published in the GitHub repository Khan/wonder-blocks (163 stars, last pushed 3d ago), licensed MIT. It adds 1,121 tokens to every session, about $0.0056 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
material-ui AGENTS.md
AGENTS.md instructions for mui/material-ui, covering agents.md, package manager, common commands, development and building.
material-ui CLAUDE.md
Claude Code instructions for mui/material-ui: This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
tamagui AGENTS.md
AGENTS.md instructions for tamagui/tamagui, covering tamagui — agent operating contract, finish what you start, then merge it back, tamagui testing guide, running tests and kitchen sink tests.
ark CLAUDE.md
Instructions for chakra-ui/ark, covering ark ui - claude development guide, documentation structure, quick start, common commands and install dependencies.
ui-components AGENTS.md
Instructions for starc007/ui-components, covering beui v2 — agent guide, commands, layout, component catalog and components (motion category — primitives).
www-sacred AGENTS.md
Instructions for internet-development/www-sacred, covering agents.md, what this repo is, repo map, conventions and the fonts menu previews.