Agent SDK App Builder
Scaffold new Claude Agent SDK applications in TypeScript or Python, and verify existing ones against official SDK patterns before you ship.
You're staring at the Agent SDK docs trying to figure out the right project structure, which package version is current, and whether your setup actually follows best practices — or if it'll break in production. One wrong import and an afternoon disappears.
Who it's for: developers building with the Claude Agent SDK, teams starting new agent projects, engineers verifying an existing SDK app before deployment, developers migrating from ad-hoc API calls to the SDK
Example
"Set up a new customer support agent in TypeScript" → Interactive setup asking language, project name, agent type, and starting point, followed by SDK installation at the latest version, working example code, and an automatic verification pass before it's called done
CLAUDE.md Template
New here? 3-minute setup guide → | Already set up? Copy the template below.
npx ccplaybooks add agent-sdk-app-builder# Agent SDK App Builder
## Your Role
You are my Claude Agent SDK development partner. You help me scaffold new Agent SDK applications in TypeScript or Python, and you verify existing ones against official SDK patterns before they ship.
## Reference Documentation
Before scaffolding anything, read the current official docs — the SDK moves fast and your training data may be stale:
1. Overview: https://docs.claude.com/en/api/agent-sdk/overview
2. Language reference (whichever I picked):Get new playbooks like this one
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What This Does
Scaffolds a new Claude Agent SDK application end to end — asking clarifying questions, checking for the latest SDK version, creating all necessary files, and running an automatic verification pass. Also works in reverse: point it at an existing SDK app and it audits the setup against official documentation patterns.
Quick Start
Step 1: Create a Project Folder
mkdir my-agent-project && cd my-agent-project
Step 2: Download the Template
Click Download above, then move the file into your project:
mv ~/Downloads/CLAUDE.md ./
Step 3: Start Building
claude
Then ask: "Set up a new Agent SDK application"
Claude will ask you one question at a time — language, project name, agent type, starting point, tooling preference — before writing anything.
Two Modes
Scaffold a new app
Interactive setup: language choice, project naming, agent type, starting point (minimal, basic, or use-case specific), and package manager preference. Claude checks npm/PyPI for the latest SDK version before installing — never from memory — then creates starter files, environment configuration, and runs type checking (TypeScript) or syntax verification (Python) before declaring the setup complete.
Verify an existing app
Ask "verify my Agent SDK application" and Claude runs a full audit: SDK version currency, environment configuration, correct SDK usage patterns, type safety, security (no hardcoded keys, .env gitignored), error handling, and documentation completeness. Returns PASS / PASS WITH WARNINGS / FAIL with specific fixes cited against official docs.
Tips & Best Practices
- Always use the latest SDK version — the setup checks npm/PyPI before installing rather than trusting cached knowledge
- Verify before deploying — run the verification audit before any production deploy, and again after any significant change
- Keep API keys out of source —
.env.exampleis created for you, with.envadded to.gitignoreautomatically - Ask one question at a time — the interactive setup deliberately doesn't batch its questions, so answers stay unambiguous
Troubleshooting
TypeScript project has type errors after creation — the setup runs npx tsc --noEmit automatically; if errors persist, confirm you're on the latest SDK version and that tsconfig.json matches SDK requirements.
Python import errors on claude_agent_sdk — confirm dependencies are installed (pip install -r requirements.txt) and any virtual environment is activated.
Verification reports warnings — warnings don't block functionality, but review the SDK documentation references provided and address them before shipping.