build-agent

build-agent is a command for coding agents from null-shot/cloudflare-skills. It costs 11 tokens per session (297 once invoked), scanned A, original, from a forked repository, Apache-2.0.

A command for building AI agents on Cloudflare with the Agents SDK, Cloudflare’s software toolkit for agent applications. It covers agents that keep state, communicate through WebSockets, run on schedules, and call tools.

In plain words
What is it for?
Use it to build customer-support chatbots, real-time coding assistants, scheduled agents, or workflows where multiple agents cooperate.
Why use it?
It provides guidance and templates for creating Cloudflare-based agents without assembling the project structure and common patterns from scratch.

Command

Part of the cloudflare plugin — 19 skills, 2 commands shipped together

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 commands/null-shot/cloudflare-skills/build-agent
Clone the repo
git clone --depth 1 https://github.com/null-shot/cloudflare-skills

Or install cloudflare, the plugin that ships this one along with the rest of its 19 skills, 2 commands.

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 build-agent

README.md
[![agentmods](https://agentmods.dev/badge/commands/null-shot/cloudflare-skills/build-agent.svg)](https://agentmods.dev/commands/null-shot/cloudflare-skills/build-agent)
Your own site
<a href="https://agentmods.dev/commands/null-shot/cloudflare-skills/build-agent"><img src="https://agentmods.dev/badge/commands/null-shot/cloudflare-skills/build-agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 297 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin fork From a forked repository.
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 $0.00011 $0.00297
Opus 5 $0.00005 $0.00148
Sonnet 5 $0.00002 $0.00059
Haiku 4.5 $0.00001 $0.00030

Measured 3d ago against content hash 9a55e53e7fe9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

build-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.

commands/build-agent.md · 41 lines

What it actually says

Build AI Agent on Cloudflare

This command helps you build AI agents using the Cloudflare Agents SDK with state management, real-time WebSockets, scheduled tasks, and tool integration.

Arguments

The user invoked this command with: $ARGUMENTS

Instructions

When this command is invoked:

  1. Read the skill file at building-ai-agent-on-cloudflare/SKILL.md for core guidance
  2. Reference building-ai-agent-on-cloudflare/references/examples.md for templates
  3. Use building-ai-agent-on-cloudflare/references/agent-patterns.md for tool calling and patterns
  4. Use building-ai-agent-on-cloudflare/references/state-patterns.md for state management
  5. Consult building-ai-agent-on-cloudflare/references/troubleshooting.md for common issues

Capabilities

  • Stateful AI agents with persistent memory
  • Real-time WebSocket communication
  • Scheduled tasks and cron jobs
  • Tool integration and function calling
  • Multi-agent orchestration
  • RAG (Retrieval Augmented Generation) patterns

Example Usage

/build-agent a customer support chatbot
/build-agent real-time coding assistant with WebSocket
/build-agent multi-agent workflow orchestrator
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 · 41 lines · 11 tokens per session scan A 9a55e53e7fe9

Subscribe to this mod's changes

build-agent is a command published in the GitHub repository null-shot/cloudflare-skills (0 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 11 tokens to every session and 297 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It comes from a forked repository.