Agent SDK
A software development kit for building production AI agents (e.g., Claude Agent SDK — the same engine that powers Claude Code).
SDKs let developers build custom agents that integrate with their specific tools and workflows, rather than being limited to pre-built solutions.
Claude Agent SDK provides the building blocks we use to create specialized agents — tool calling, memory management, and orchestration primitives that power our Paperclip agent hierarchy.
Related terms
Agent (AI Agent)
An AI system that plans, decides, and acts autonomously toward goals, rather than simply responding to prompts.
Claude Code
Anthropic's agentic coding tool that runs in the terminal, understands codebases, and executes tasks autonomously.
Tool Use
An agent's ability to call external tools: searches, databases, APIs, code execution.
MCP (Model Context Protocol)
An open standard for connecting AI tools to external services. "USB-C for AI."