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create-agent

create-agent is a skill for Claude Code from cognitedata/builder-skills. It costs 80 tokens per session (1,216 once invoked), scanned A, original, Apache-2.0.

A skill for scaffolding a new Atlas agent project, creating its initial configuration, documentation, and evaluation cases. Scaffolding means generating the standard starting files for a project.

In plain words
What is it for?
Use it when starting a new Atlas agent and defining its name, description, model, instructions, and tools.
Why use it?
It avoids manually assembling files that must follow a specific project structure and format.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

not rated 6repo yesterday A scan 80 tokens original Apache-2.0

Good fit Use it when starting a new Atlas agent and defining its name, description, model, instructions, and tools.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cognitedata/builder-skills/create-agent
View source ↗ cognitedata/builder-skills
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 cognitedata/builder-skills --skill create-agent
Clone the repo
git clone --depth 1 https://github.com/cognitedata/builder-skills

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/cognitedata/builder-skills/create-agent/github.svg)](https://agentmods.dev/skills/cognitedata/builder-skills/create-agent)
Your own site
<a href="https://agentmods.dev/skills/cognitedata/builder-skills/create-agent"><img src="https://agentmods.dev/badge/skills/cognitedata/builder-skills/create-agent/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 create-agent

Your own site · 80×15
<a href="https://agentmods.dev/skills/cognitedata/builder-skills/create-agent"><img src="https://agentmods.dev/badge/skills/cognitedata/builder-skills/create-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,216 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 $0.00080 $0.01216
Opus 5.5 $0.00032 $0.00486
Sonnet 5.5 $0.00016 $0.00243
Haiku 4.5 $0.00008 $0.00122

Measured 2mo ago against content hash 882a8b73aba4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 2mo 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.

skills/create-agent/SKILL.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create Agent

Scaffold a new Atlas agent project named $ARGUMENTS using npx @cognite/cli@latest agents create.

What gets created

<agent-name>/
  agent.yaml         # Agent definition — externalId, model, instructions, tools
  README.md          # Quick-start docs and tool reference
  eval/
    cases.yaml       # Starter eval cases (single-turn, multi-turn, correctness + faithfulness scorers)

Step 1 — Gather optional fields

The agent name is $ARGUMENTS. Ask the user for the following (skip any they already provided):

Field CLI flag Default
Display name --display-name same as agent name
Description --description —
Model --model azure/gpt-5.4-mini
Instructions (system prompt) --instructions see default below
Tools (edit after creation) none

Default instructions when the user doesn't specify:

Help users explore and understand the data in this project.
Use the available tools to retrieve data before answering.
When the data is insufficient, say so rather than guessing.

Step 2 — Run npx @cognite/cli@latest agents create

Run the command, including only flags where the user provided a value or a non-empty default applies:

npx @cognite/cli@latest agents create <agent-name> \
  --display-name "<display-name>" \
  --description "<description>" \
  --model <model> \
  --instructions "<instructions>" \
  --no-prompt
  • Omit --display-name if the user wants the default (same as agent name).
  • Omit --description if none was given.
  • Always pass --instructions (use the default if the user didn't specify).
  • Always pass --no-prompt to skip the CLI's interactive prompts.
  • For multi-line instructions, pass them as-is in quotes; if the shell quoting is awkward, skip --instructions and edit agent.yaml manually after creation.

Step 3 — Add tools (if any)

If the user wants tools, edit <agent-name>/agent.yaml to add a tools array. Do NOT add tools: [] — omit the key entirely when there are no tools.

Read the full file on GitHub · 129 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. 2mo ago First seen · 129 lines · 80 tokens per session scan A 882a8b73aba4

Subscribe to this mod's changes

create-agent is a skill published in the GitHub repository cognitedata/builder-skills (6 stars, last pushed yesterday), licensed Apache-2.0. It adds 80 tokens to every session and 1,216 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-08-31.

Building agentsai-low-risk
Related

create-agent compared with skills from other repositories

create-agent next to 6 skills from other repositories
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create-agentcognitedata/builder-skillsSkill6yesterdayApache-2.0A80Claude Code
imagegenopenai/codexSkill134ktodayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99ktodayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79ktodayMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill314k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code