Borrowing it
Nothing to install: this file belongs to RewritingTheCode/workshop. 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/RewritingTheCode/workshop/main/CLAUDE.mdgit clone --depth 1 https://github.com/RewritingTheCode/workshopWrote 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/rewritingthecode/workshop/claude-md)<a href="https://agentmods.dev/instructions/rewritingthecode/workshop/claude-md"><img src="https://agentmods.dev/badge/instructions/rewritingthecode/workshop/claude-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/rewritingthecode/workshop/claude-md"><img src="https://agentmods.dev/badge/instructions/rewritingthecode/workshop/claude-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 | $0.00842 | $0.00842 |
| Opus 5.5 | $0.00337 | $0.00337 |
| Sonnet 5.5 | $0.00168 | $0.00168 |
| Haiku 4.5 | $0.00084 | $0.00084 |
Grade A, and why
workshop CLAUDE.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.
How it starts
The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Portfolio Starter - Project Rules
A single-page personal portfolio. Built live during RTC's "How RTC Builds Real Software with AI" workshop, and yours to keep extending afterward.
The loop
Every change follows the same five steps. No exceptions, including for small changes.
- Context - ask what this is and who it is for, before proposing anything
- Spec - write the decision down as an ADR in
docs/adr/, before writing code - Build - implement the ADR. The ADR is the instruction.
- Validate -
npm run check. Look at it at 320px wide. - Ship -
npm run deploy. It is not done until it is on the internet.
Content
All personal content lives in src/content/profile.ts and must satisfy
src/content/schema.ts. Never add a second source of truth for content. Never hardcode a name,
a job title, or a date into a component.
That includes index.html. Its <title> and meta description are filled in from profile.ts
at build time by the plugin in vite.config.ts - see src/content/metadata.ts. Leave the
__PAGE_TITLE__ and __PAGE_DESCRIPTION__ tokens alone.
Page section order is content too: profile.sections is the order of the page and of the
anchor nav. Adding a section means adding its id to SECTION_IDS in the schema and an entry
in src/components/sections.tsx - never a hand-placed component in Page.tsx. See
docs/adr/ADR-006-section-order.md.
Never invent content. If information is not in the source the user gave you, leave the field out. This is a public portfolio - a fabricated job or project is a serious problem, not a formatting detail.
Code
- React 19 + TypeScript + Tailwind v4 + Vite. Match the existing patterns in
src/components/. - Mobile first. Start at the phone layout with no prefix, add width at
sm:andmd:. - It must work at 320px. No fixed widths in the page shell.
- Real semantics: one
<h1>, headings that do not skip levels,<nav>for the nav,<button>for buttons. Never a<div>with an onClick. - Visible focus states on everything interactive.
- Keep files under 200 lines. Split a component before it gets long.
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 · 75 lines · 842 tokens per session scan A 84b4230b7905
workshop CLAUDE.md is an instructions file published in the GitHub repository RewritingTheCode/workshop (12 stars, last pushed today), licensed MIT. It adds 842 tokens to every session, about $0.0034 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.
Other instructions, from other repositories
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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).
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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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AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
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Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
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AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.