create-agent

create-agent is a skill for Claude Code from microsoft/vscode. It costs 16 tokens per session (270 once invoked), scanned A, original, MIT.

A guide for creating a custom agent file for a specialised coding job. It helps define the agent's role, scope, tool choices, and working style.

In plain words
What is it for?
Use it to create agents dedicated to a domain, file type, workflow, or toolset.
Why use it?
It gives recurring tasks their own focused agent instead of requiring you to restate the same role and limits each time.

Skill for Claude Code ✓ vendor

Written for Claude Code: disable-model-invocation in frontmatter.

Good fit Use it to create agents dedicated to a domain, file type, workflow…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/microsoft/vscode/create-agent
About the project

Visual Studio Code is a code editor that supports editing, navigating, understanding, debugging, and extending software projects. Developers use it for the edit-build-debug cycle, and the catalogue add-ons provide skills, instructions, and agents for working within the editor.

microsoft/vscode · 190,932 stars · on GitHub · code.visualstudio.com

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.

Any agent
npx skills add microsoft/vscode --skill create-agent
Clone the repo
git clone --depth 1 https://github.com/microsoft/vscode

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 create-agent

README.md
[![agentmods](https://agentmods.dev/badge/skills/microsoft/vscode/create-agent.svg)](https://agentmods.dev/skills/microsoft/vscode/create-agent)
Your own site
<a href="https://agentmods.dev/skills/microsoft/vscode/create-agent"><img src="https://agentmods.dev/badge/skills/microsoft/vscode/create-agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 270 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 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00016 $0.00270
Opus 5 $0.00008 $0.00135
Sonnet 5 $0.00003 $0.00054
Haiku 4.5 $0.00002 $0.00027

Measured 3d ago against content hash 30e0928e3def, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

create-agent 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 3d 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.

extensions/copilot/assets/prompts/skills/create-agent/SKILL.md · 29 lines

What it actually says

Related skill: agent-customization. Load and follow agents.md for template and principles.

Guide the user to create an .agent.md.

Extract from Conversation

First, review the conversation history. If the user has been using the agent in a specialized way (e.g., restricting tools, following a specific persona, focusing on certain file types), generalize that into a custom agent. Extract:

  • The specialized role or persona being assumed
  • Tool preferences (which to use, which to avoid)
  • The domain or job scope

Clarify if Needed

If no clear specialization emerges from the conversation, clarify:

  • What job should this agent do?
  • When should it be picked over the default agent?
  • Which tools should it use (or avoid)?

Iterate

  1. Draft the agent file and save it.
  2. Identify the most ambiguous or weak parts and ask about those.
  3. Once finalized, summarize what the agent does, suggest example prompts to try it, and propose related customizations to create next.

Remember to follow the agent-customization guidelines to create highly effective agents.

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. 3d ago First seen · 29 lines · 16 tokens per session scan A 30e0928e3def

Subscribe to this mod's changes

create-agent is a skill published in the GitHub repository microsoft/vscode (190,932 stars, last pushed today), licensed MIT. It adds 16 tokens to every session and 270 once invoked, about $0.0001 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.