What is OpenAEC-Workspace-Composer CLAUDE.md?

A set of project instructions for building OpenAEC Workspace Composer, a desktop-first app for assembling Claude Code workspaces from skill packages.

Use it when developing the OpenAEC workspace composer across its Tauri desktop app, SolidJS frontend, Rust backend, and browser fallback.

It gives contributors a shared understanding of the app's identity, desktop and web roles, technology choices, and architecture.

How OpenAEC-Foundation/OpenAEC-Workspace-Composer configures Claude Co

Reuse

Borrowing it

Nothing to install: this file belongs to OpenAEC-Foundation/OpenAEC-Workspace-Composer. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/OpenAEC-Foundation/OpenAEC-Workspace-Composer/master/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/OpenAEC-Foundation/OpenAEC-Workspace-Composer

Made for: Claude Code.

Wrote 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.

README.md

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Your own site

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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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/openaec-foundation/openaec-workspace-composer/claude-md"><img src="https://agentmods.dev/badge/instructions/openaec-foundation/openaec-workspace-composer/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 645 This file is loaded in full into every session.

When invoked 645 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00645	$0.00645
Opus 5	$0.00322	$0.00322
Sonnet 5	$0.00129	$0.00129
Haiku 4.5	$0.00064	$0.00064

Measured 6d ago against content hash e1002be9bb45, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

OpenAEC-Workspace-Composer 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 6d 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.

CLAUDE.md · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OpenAEC Workspace Composer

Identiteit

Desktop-first applicatie (Tauri 2 + SolidJS) voor het samenstellen van Claude Code workspaces met skill packages van de OpenAEC Foundation. De web versie wordt afgeleid van de desktop app, niet andersom.

Platform strategie

Primair: Desktop app (Tauri 2, Windows/Mac/Linux)
Secundair: Web app (zelfde SolidJS frontend, zonder Rust backend)
Desktop-first: alle features worden eerst voor Tauri gebouwd
Web fallback: alle Tauri API calls zitten in try/catch, de app werkt ook in de browser maar met beperkte functionaliteit (geen file dialogs, geen shell commands, geen install)
npm run tauri dev is de primaire development workflow
npm run dev (Vite only) is voor snelle UI iteratie en de web versie

Stack

Frontend: SolidJS + TypeScript + Vite (gedeeld tussen desktop en web)
Backend: Rust (Tauri 2, alleen desktop)
Icons: solid-icons/tb (Tabler Icons)
Animaties: solid-transition-group
CSS: Modulair onder src/styles/ (30 bestanden)
Plugins: tauri-plugin-dialog, tauri-plugin-shell, tauri-plugin-updater

Architectuur

src/                    → SolidJS frontend (gedeeld desktop + web)
├── assets/             → Logo's, OpenAEC symbol
├── components/         → UI componenten
├── lib/               → Data (packages, presets, registry, logos)
├── pages/             → 20 route pages
├── stores/            → SolidJS stores (signals)
├── styles/            → 30 modulaire CSS bestanden
└── index.tsx          → Entry point + router

src-tauri/             → Rust backend (alleen desktop)
├── src/lib.rs         → Tauri command registratie
├── src/installer.rs   → Install flow + skill scanning
├── src/prerequisites.rs → Tool checker
├── src/registry.rs    → GitHub API registry fetch
└── tauri.conf.json    → App configuratie

Commando's

npm run tauri dev — Start desktop app in dev mode (primair)
npm run dev — Start Vite dev server voor web/UI iteratie
npm run tauri build — Build production desktop binary
npm run build — Build frontend voor web deployment

Read the full file on GitHub · 58 lines

Changes

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.

6d ago First seen · 58 lines · 645 tokens per session scan A e1002be9bb45

Subscribe to this mod's changes

OpenAEC-Workspace-Composer CLAUDE.md is an instructions file published in the GitHub repository OpenAEC-Foundation/OpenAEC-Workspace-Composer (5 stars, last pushed 5mo ago), licensed MIT. It adds 645 tokens to every session, about $0.0032 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 2026-09-03.

Claude Code Project management aec bim desktop-app mcp openaec

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