WinForms Expert

WinForms Expert is an agent for Claude Code from archubbuck/workspace-architect. It costs 19 tokens per session (6,191 once invoked), scanned A, a copy of WinForms Expert, ISC.

An expert agent for building .NET Windows desktop applications with WinForms, a Microsoft framework for graphical apps whose screens can be designed visually. It provides project and coding guidelines, including target Windows and .NET versions.

In plain words
What is it for?
It is for creating or supporting WinForms applications, class libraries, startup configuration, Windows API access, and high-DPI desktop interfaces.
Why use it?
It helps keep new WinForms projects compatible with the visual designer and consistent with the specified Windows, display-scaling, dark-mode, and package practices.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit It is for creating or supporting WinForms applications, class libraries, startup configuration, Windows API access, and high-DPI desktop interfaces.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/archubbuck/workspace-architect/winformsexpert
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.

Clone the repo
git clone --depth 1 https://github.com/archubbuck/workspace-architect

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.

agentmods badge for WinForms Expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/archubbuck/workspace-architect/winformsexpert/github.svg)](https://agentmods.dev/agents/archubbuck/workspace-architect/winformsexpert)
Your own site
<a href="https://agentmods.dev/agents/archubbuck/workspace-architect/winformsexpert"><img src="https://agentmods.dev/badge/agents/archubbuck/workspace-architect/winformsexpert/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.

agentmods 80×15 button for WinForms Expert

Your own site · 80×15
<a href="https://agentmods.dev/agents/archubbuck/workspace-architect/winformsexpert"><img src="https://agentmods.dev/badge/agents/archubbuck/workspace-architect/winformsexpert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 6,191 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 5.1 $0.00019 $0.06191
Opus 5 $0.00010 $0.03096
Sonnet 5 $0.00004 $0.01238
Haiku 4.5 $0.00002 $0.00619

Measured 9d ago against content hash b3b589131d7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

WinForms Expert 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 9d 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.

Origin

This is a copy

100% identical to WinForms Expert — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

assets/agents/WinFormsExpert.agent.md · 629 lines

How it starts

The opening of the file, as written. The whole thing — 629 lines — stays where its author put it; the contents beside it link to each section on GitHub.

WinForms Development Guidelines

These are the coding and design guidelines and instructions for WinForms Expert Agent development. When customer asks/requests will require the creation of new projects

New Projects:

  • Prefer .NET 10+. Note: MVVM Binding requires .NET 8+.
  • Prefer Application.SetColorMode(SystemColorMode.System); in Program.cs at application startup for DarkMode support (.NET 9+).
  • Make Windows API projection available by default. Assume 10.0.22000.0 as minimum Windows version requirement.
    <TargetFramework>net10.0-windows10.0.22000.0</TargetFramework>

Critical:

📦 NUGET: New projects or supporting class libraries often need special NuGet packages. Follow these rules strictly:

  • Prefer well-known, stable, and widely adopted NuGet packages - compatible with the project's TFM.
  • Define the versions to the latest STABLE major version, e.g.: [2.*,)

⚙️ Configuration and App-wide HighDPI settings: app.config files are discouraged for configuration for .NET. For setting the HighDpiMode, use e.g. Application.SetHighDpiMode(HighDpiMode.SystemAware) at application startup, not app.config nor manifest files.

Note: SystemAware is standard for .NET, use PerMonitorV2 when explicitly requested.

VB Specifics:

  • In VB, do NOT create a Program.vb - rather use the VB App Framework.
  • For the specific settings, make sure the VB code file ApplicationEvents.vb is available. Handle the ApplyApplicationDefaults event there and use the passed EventArgs to set the App defaults via its properties.
Property Type Purpose
ColorMode SystemColorMode DarkMode setting for the application. Prefer System. Other options: Dark, Classic.
Font Font Default Font for the whole Application.
HighDpiMode HighDpiMode SystemAware is default. PerMonitorV2 only when asked for HighDPI Multi-Monitor scenarios.

🎯 Critical Generic WinForms Issue: Dealing with Two Code Contexts

Read the full file on GitHub · 629 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.

  1. 9d ago First seen · 629 lines · 19 tokens per session scan A b3b589131d7e

Subscribe to this mod's changes

WinForms Expert is an agent published in the GitHub repository archubbuck/workspace-architect (18 stars, last pushed 5d ago), licensed ISC. It adds 19 tokens to every session and 6,191 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to WinForms Expert, differing in 0 lines, and is treated as a copy.