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build-agent

build-agent is a command for Claude Code from null-shot/cloudflare-skills. It costs 11 tokens per session (297 once invoked), scanned A, a copy of build-agent, 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 for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

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

not rated 0repo 9mo ago A scan 11 tokens copy · 89% Apache-2.0

Good fit Use it to build customer-support chatbots, real-time coding assistants, scheduled agents, or workflows where multiple agents cooperate.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/null-shot/cloudflare-skills/build-agent
View source ↗ null-shot/cloudflare-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.

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

Made for: Claude Code.

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/github.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/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 build-agent

Your own site · 80×15
<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="Reviewed on agentmods" width="80" 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. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% 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 $0.00011 $0.00297
Opus 5.5 $0.00004 $0.00119
Sonnet 5.5 $0.00002 $0.00059
Haiku 4.5 $0.00001 $0.00030

Measured 2mo ago against content hash 9a55e53e7fe9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 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.

Origin

This is a copy

89% identical to build-agent — 16 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.

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. 2mo 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 9mo ago), licensed Apache-2.0. It adds 11 tokens to every session and 297 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 89% identical to build-agent, differing in 16 lines, and is treated as a copy.

Building agentsCloudDevOps and cloud
Related

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