What is yuzudraw AGENTS.md?

Project instructions for YuzuDraw, a macOS app for creating ASCII diagrams, which use text characters to draw shapes and layouts. They describe the app structure and the commands for generating its Xcode project, building it, testing it, and building its command-line tool.

Use them when changing YuzuDraw, its SwiftUI interface, drawing tools, data models, or command-line tool. They also explain how to run the app’s unit tests and builds.

They give a coding agent the project’s expected workflow and file locations. This reduces mistakes such as editing generated Xcode files or skipping required checks.

yuzudraw AGENTS.md — Instructions file for Codex and OpenCode by agavra: Project instructions for YuzuDraw, a macOS app for creating…

Install

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.

agentmods

npx agentmods add instructions/agavra/yuzudraw/agents-md

Clone the repo

git clone --depth 1 https://github.com/agavra/yuzudraw

Made for: Codex, OpenCode.

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

[![agentmods](https://agentmods.dev/badge/instructions/agavra/yuzudraw/agents-md.svg)](https://agentmods.dev/instructions/agavra/yuzudraw/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/agavra/yuzudraw/agents-md"><img src="https://agentmods.dev/badge/instructions/agavra/yuzudraw/agents-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 2,272 This file is loaded in full into every session.

When invoked 2,272 The same file — it is already loaded in full.

Security scan A 0 findings. Scan, not verified.

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	$0.02272	$0.02272
Opus 5	$0.01136	$0.01136
Sonnet 5	$0.00454	$0.00454
Haiku 4.5	$0.00227	$0.00227

Measured 5d ago against content hash 8c03239bfa8f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

yuzudraw 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 5d 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.

AGENTS.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

YuzuDraw

A macOS app for drawing ASCII diagrams (Monodraw/Figma-like).

Build & Test

# Generate Xcode project (after modifying project.yml)
xcodegen generate

# Build (warnings are treated as errors via project.yml settings)
xcodebuild -scheme YuzuDraw -destination 'platform=macOS' build

# Run tests (UI smoke tests are excluded from the scheme; only unit tests run)
xcodebuild -scheme YuzuDraw -destination 'platform=macOS' test

# Build CLI
xcodebuild -project YuzuDraw.xcodeproj -scheme YuzuDrawCLI -configuration Debug build

Project Structure

project.yml — XcodeGen spec (source of truth for the Xcode project)
YuzuDraw/App/ — App entry point (YuzuDrawApp with WorkspaceViewModel)
YuzuDraw/Models/ — Data models (Canvas, Geometry, Shapes, Layers, Document, ProjectMetadata, ProjectTab, RecentProject)
YuzuDraw/Views/ — SwiftUI views (RootView, WelcomeView, TabBarContentView, ContentView, CanvasView, ToolbarView, LayerPanel, InspectorPanel)
YuzuDraw/ViewModels/ — Observable view models (WorkspaceViewModel, EditorViewModel)
YuzuDraw/Tools/ — Drawing tool system (Tool protocol, SelectionTool, RectangleTool, ArrowTool, TextTool)
YuzuDraw/Serialization/ — Document persistence (JSON via DocumentCodable, DSL via DSLSerializer/DSLParser, ProjectFileManager for file I/O)
YuzuDraw/Automation/ — Shared automation service for CLI workflows (DiagramAutomationService)
YuzuDrawCLI/ — CLI entrypoint and command handling
YuzuDraw/Resources/ — Assets, Info.plist, entitlements
YuzuDrawTests/ — Unit tests

Architecture

Rendering Pipeline

Document (shapes, layers, groups)  ← semantic model, source of truth
    │
    ▼
RenderEngine: iterate layers bottom→top, render visible shapes
    │
    ▼
Canvas (2D character grid)  ← "framebuffer", re-rendered on every mutation
    │
    ▼
CanvasView: displays Canvas.render() as monospaced Text

Canvas is a dumb 2D character grid — shapes are the source of truth, not canvas cells
Document.render(into:) clears canvas then renders all visible layers/shapes in order
EditorViewModel.rerender() is called after every document mutation

Read the full file on GitHub · 159 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.

5d ago First seen · 159 lines · 2,272 tokens per session scan A 8c03239bfa8f

Subscribe to this mod's changes

yuzudraw AGENTS.md is an instructions file published in the GitHub repository agavra/yuzudraw (50 stars, last pushed 5mo ago), licensed MIT. It adds 2,272 tokens to every session, about $0.0114 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.

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

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).

microsoft/vscode · 6,785 tokens

yuzudraw AGENTS.md