Is the Create Custom Agent skill free?

Yes. The skill itself is free from dotnet/skills. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Create Custom Agent SkillProof Score?

9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.

How do I install Create Custom Agent?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Create Custom Agent with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Create Custom Agent

Scaffolds VS Code .agent.md custom agent files with correct frontmatter, tools, and handoffs.

by dotnet · dotnet/skills

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.2/10
Tested: Jul 10, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Jul 18, 2026 · 9c63423

An unguided agent file was missing the required description field; following the skill's steps produced a spec-compliant file matching the real editor's actual file structure.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 8/10
Docs & honesty 5/5

What Create Custom Agent does

Generates VS Code custom agent files (.agent.md) with valid frontmatter (tools, handoffs, model, description) and a structured persona body, following VS Code's actual custom-agent file conventions. Triggers when the user wants to scaffold a new custom agent, configure agent-to-agent handoffs, or set up a tool-restricted role like planner or reviewer for VS Code Copilot Chat.

How to install Create Custom Agent

git clone https://github.com/dotnet/skills
cd skills
mkdir -p ~/.claude/skills
cp -r .agents/skills/create-custom-agent ~/.claude/skills/create-custom-agent

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Create Custom Agent

/create-custom-agent Scaffolds VS Code .agent.md custom agent files with correct frontmatter, tools, and handoffs.

It also activates on plain-language prompts like these:

Scaffold a VS Code .agent.md file for a planner role
Set up agent-to-agent handoffs between my reviewer and coder agents
Create a tool-restricted custom agent for Copilot Chat

Frequently asked questions

Is the Create Custom Agent skill free?: Yes. The skill itself is free from dotnet/skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does Create Custom Agent work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 10, 2026. Verdict: Tested · Works. An unguided agent file was missing the required description field; following the skill's steps produced a spec-compliant file matching the real editor's actual file structure.
What is the Create Custom Agent SkillProof Score?: 9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.
How do I install Create Custom Agent?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Create Custom Agent with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.