convert-web-app

convert-web-app is a skill for Claude Code, Codex from tldraw/tldraw. It costs 115 tokens per session (4,714 once invoked), scanned A, original, no licence file.

A guide for adding MCP App support to an existing web app. MCP Apps are web interfaces that can work through the Model Context Protocol, a way for AI tools and apps to exchange actions and data.

In plain words
What is it for?
Converting web pages, embedded frames, and SPAs into hybrid MCP Apps while keeping their existing user interface.
Why use it?
It helps adapt an existing page or single-page app to work as both a normal website and an MCP App.

Skill for Claude CodeCodex

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 skills/tldraw/tldraw/convert-web-app
Any agent
npx skills add tldraw/tldraw --skill convert-web-app
Clone the repo
git clone --depth 1 https://github.com/tldraw/tldraw

Made for: Claude Code, Codex.

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.

agentmods badge for convert-web-app

README.md
[![agentmods](https://agentmods.dev/badge/skills/tldraw/tldraw/convert-web-app.svg)](https://agentmods.dev/skills/tldraw/tldraw/convert-web-app)
Your own site
<a href="https://agentmods.dev/skills/tldraw/tldraw/convert-web-app"><img src="https://agentmods.dev/badge/skills/tldraw/tldraw/convert-web-app.svg" alt="Measured on agentmods" height="20"></a>
Per session 115 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,714 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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.

ModelPer sessionOnce invoked
Fable 5 $0.00115 $0.04714
Opus 5 $0.00057 $0.02357
Sonnet 5 $0.00023 $0.00943
Haiku 4.5 $0.00012 $0.00471

Measured 4d ago against content hash b55ac58b244a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

convert-web-app 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 4d 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.

apps/mcp-app/.claude/skills/convert-web-app/SKILL.md · 558 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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.

  1. 4d ago First seen · 558 lines · 115 tokens per session scan A b55ac58b244a

Subscribe to this mod's changes

convert-web-app is a skill published in the GitHub repository tldraw/tldraw (50,112 stars, last pushed yesterday), with no licence file. It adds 115 tokens to every session and 4,714 once invoked, about $0.0006 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.

Related

Other skills, from other repositories

refine-canvas-strokes

Design, implement, review, or troubleshoot safe refinement of editable 2D canvas strokes. Use for handwriting smoothing, automatic text layout cleanup, optional font-guided handwriting normalization, freehand cleanup, geometric shape snapping, diagram cleanup, stroke-style normalization, semantic stroke replacement…

machaomc/refine-canvas-strokes · 108 tokens

Excalidraw

Shapes sketch-style diagrams and editable visual explanations for flows, product ideas, and architecture discussions.

agentic-in/elephant-agent · 23 tokens

frame-flowchart-sticky

SVG 曲线连接 + 便利贴节点 + 光标交互, 像白板 brainstorm.

nexu-io/html-anything · 27 tokens

render-reftest

Design, review, and debug visual rendering tests: reftests (independent oracle), golden/snapshot regression tests, probe tests (pixel assertions without vision), SVG reftest suites, and Figma refig suites. Use when adding pixel diffs, choosing an oracle strategy, or comparing renderer output against a ground truth.

gridaco/nothing · 71 tokens

render-perf

Guides performance optimization work on the Grida Canvas Rust rendering engine (grida crate). Use when asked to benchmark, profile, optimize, or analyze rendering performance — panning, zooming, compositing, caching, culling, or frame budgeting.

gridaco/nothing · 55 tokens

dev-render-htmlcss-svg-feature

Manual-invocation only. Five-phase feature loop (audit → ground → fixture → implement → verify) for driving a single SVG feature to Chromium parity in the grida htmlcss::svg renderer. Sibling to dev-render-htmlcss-feature (HTML/CSS path); same loop shape, different corpus (resvg-test-suite + Chrome bake) and different…

gridaco/nothing · 94 tokens