# Agent Systems Handbook by Prompthon

> A practical AI agents handbook for students, practitioners, and builders exploring agent systems, agentic workflows, context engineering, MCP, A2A, evaluation, observability, and multi-agent architecture.

## Docs

- [Website Publishing](https://labs.prompthon.io/WEBSITE.md)
- [Coding Agents](https://labs.prompthon.io/case-studies/coding-agents.md)
- [Customer Support Agents](https://labs.prompthon.io/case-studies/customer-support-agents.md)
- [Deep Research Agents](https://labs.prompthon.io/case-studies/deep-research-agents.md)
- [Customer Email Assist Starter](https://labs.prompthon.io/case-studies/examples/customer-email-assist-starter/index.md)
- [Customer Support Email Agent Starter](https://labs.prompthon.io/case-studies/examples/customer-support-email-agent-starter/index.md)
- [Deep Research Agent Starter](https://labs.prompthon.io/case-studies/examples/deep-research-agent-starter/index.md)
- [Case Studies](https://labs.prompthon.io/case-studies/index.md)
- [Article Guidelines](https://labs.prompthon.io/contributor-kit/article-guidelines.md)
- [Basic GitHub Flow For Contributors](https://labs.prompthon.io/contributor-kit/contribution-workflow.md): Choose the right support path, claim an issue, fork or branch, and open a focused pull request.
- [Discord Activity Record](https://labs.prompthon.io/contributor-kit/discord-activity-record.md)
- [GitHub Issue Guide](https://labs.prompthon.io/contributor-kit/github-issue-guide.md)
- [Contributor Kit](https://labs.prompthon.io/contributor-kit/index.md)
- [Prompthon Agentic Labs Structure](https://labs.prompthon.io/contributor-kit/lab-structure.md)
- [Local Debugging](https://labs.prompthon.io/contributor-kit/local-debugging.md)
- [Radar Note Guidelines](https://labs.prompthon.io/contributor-kit/radar-note-guidelines.md)
- [Reference Note Guidelines](https://labs.prompthon.io/contributor-kit/reference-note-guidelines.md)
- [Deep Research Product Signals](https://labs.prompthon.io/contributor-kit/reference-notes/deep-research-product-signals.md)
- [Deep Research Source Map](https://labs.prompthon.io/contributor-kit/reference-notes/deep-research-source-map.md)
- [Reference Notes](https://labs.prompthon.io/contributor-kit/reference-notes/index.md)
- [Local Agent Tooling Source Map](https://labs.prompthon.io/contributor-kit/reference-notes/local-agent-tooling-source-map.md)
- [Review Checklist](https://labs.prompthon.io/contributor-kit/review-checklist.md)
- [Skill Package Guidelines](https://labs.prompthon.io/contributor-kit/skill-package-guidelines.md)
- [Source Project Guidelines](https://labs.prompthon.io/contributor-kit/source-project-guidelines.md)
- [Start Here](https://labs.prompthon.io/contributor-kit/start-here.md)
- [Placeholder Title](https://labs.prompthon.io/contributor-kit/templates/article-template.md)
- [Placeholder Radar Note](https://labs.prompthon.io/contributor-kit/templates/radar-note-template.md)
- [Placeholder Reference Note](https://labs.prompthon.io/contributor-kit/templates/reference-note-template.md)
- [Placeholder Source Project](https://labs.prompthon.io/contributor-kit/templates/source-project-template/index.md)
- [Agent Frameworks](https://labs.prompthon.io/ecosystem/agent-frameworks.md)
- [Agent Platforms And Low-Code Builders](https://labs.prompthon.io/ecosystem/agent-platforms-and-low-code-builders.md)
- [LangGraph Starter](https://labs.prompthon.io/ecosystem/examples/langgraph-starter/index.md)
- [Messaging Transaction Assistant Starter](https://labs.prompthon.io/ecosystem/examples/messaging-transaction-assistant-starter/index.md): A vendor-neutral starter for Business-AI-style messaging assistants with profile and catalog context, human takeover, and payment handoff boundaries.
- [Framework Comparison: API Directly, LlamaIndex, LangChain, LangGraph, and CrewAI](https://labs.prompthon.io/ecosystem/framework-comparison.md)
- [Ecosystem](https://labs.prompthon.io/ecosystem/index.md)
- [Agents Vs Workflows](https://labs.prompthon.io/foundations/agents-vs-workflows.md)
- [History Of Agent Ideas](https://labs.prompthon.io/foundations/history-of-agent-ideas.md)
- [Foundations](https://labs.prompthon.io/foundations/index.md)
- [LLM Foundations For Agent Systems](https://labs.prompthon.io/foundations/llm-foundations-for-agent-systems.md)
- [The Agent System](https://labs.prompthon.io/foundations/the-agent-system.md)
- [Agent Systems Handbook by Prompthon](https://labs.prompthon.io/index.md): A practical AI agents handbook for students, practitioners, and builders exploring agent systems, agentic workflows, context engineering, MCP, A2A, evaluation, observability, and multi-agent architecture.
- [Agent Memory And Retrieval](https://labs.prompthon.io/patterns/agent-memory-and-retrieval.md)
- [Agent Runtime Building Blocks](https://labs.prompthon.io/patterns/agent-runtime-building-blocks.md)
- [Agent Memory Retrieval Starter](https://labs.prompthon.io/patterns/examples/agent-memory-retrieval-starter/index.md)
- [Prompt Cache Agent Starter](https://labs.prompthon.io/patterns/examples/prompt-cache-agent-starter/index.md)
- [Patterns](https://labs.prompthon.io/patterns/index.md)
- [Planning And Reflection](https://labs.prompthon.io/patterns/planning-and-reflection.md)
- [Reasoning And Control Patterns](https://labs.prompthon.io/patterns/reasoning-and-control-patterns.md)
- [Publications](https://labs.prompthon.io/publications/index.md)
- [Publication Metadata Schema](https://labs.prompthon.io/publications/metadata-schema.md)
- [April 2026 Assistant Safety Escalation Watch](https://labs.prompthon.io/radar/2026-04-assistant-safety-escalation-watch.md)
- [April 2026 Defense Agent Training Loop Watch](https://labs.prompthon.io/radar/2026-04-defense-agent-training-loop-watch.md)
- [April 2026 Interoperability Watch](https://labs.prompthon.io/radar/2026-04-interoperability-watch.md)
- [April 2026 Local Agent Watch](https://labs.prompthon.io/radar/2026-04-local-agent-watch.md)
- [April 2026 Portable Assistant Memory Watch](https://labs.prompthon.io/radar/2026-04-portable-assistant-memory-watch.md)
- [Protocol Watch](https://labs.prompthon.io/radar/2026-04-protocol-watch.md)
- [May 2026 Agentic Shopping Assistant Watch](https://labs.prompthon.io/radar/2026-05-agentic-shopping-assistant-watch.md)
- [June 2026 Agent-First Devices Watch](https://labs.prompthon.io/radar/2026-06-agent-first-devices-watch.md)
- [Radar](https://labs.prompthon.io/radar/index.md)
- [Builder](https://labs.prompthon.io/reading-paths/builder.md)
- [Contributor](https://labs.prompthon.io/reading-paths/contributor.md)
- [Environment Setup](https://labs.prompthon.io/reading-paths/environment-setup.md)
- [Explorer](https://labs.prompthon.io/reading-paths/explorer.md)
- [Practitioner](https://labs.prompthon.io/reading-paths/practitioner.md)
- [Sample Projects](https://labs.prompthon.io/reading-paths/sample-projects.md)
- [Practitioner Skills](https://labs.prompthon.io/skills/index.md)
- [Agent UI Protocols And Generative UI](https://labs.prompthon.io/systems/agent-ui-protocols-and-generative-ui.md)
- [Context Engineering](https://labs.prompthon.io/systems/context-engineering.md)
- [Evaluation And Observability](https://labs.prompthon.io/systems/evaluation-and-observability.md)
- [Weather MCP Server Starter](https://labs.prompthon.io/systems/examples/weather-mcp-server-starter/index.md)
- [Systems](https://labs.prompthon.io/systems/index.md)
- [Protocols And Interoperability](https://labs.prompthon.io/systems/protocols-and-interoperability.md)
- [Codex Workshop GitHub And Repository Setup](https://labs.prompthon.io/workshops/codex/github-and-repository.md): Create or sign in to GitHub, install GitHub Desktop, fork the handbook, and clone your fork locally.
- [Codex Workshop](https://labs.prompthon.io/workshops/codex/index.md): Set up the Codex app on Windows or macOS before moving to GitHub and repository setup.
- [Codex Workshop Mac Setup](https://labs.prompthon.io/workshops/codex/install-mac.md): Create or confirm your ChatGPT account, install the Codex app on macOS, and sign in before cloning a repository.
- [Codex Workshop Windows Setup](https://labs.prompthon.io/workshops/codex/install-windows.md): Create or confirm your ChatGPT account, install the Codex app on Windows, and sign in before cloning a repository.
- [Claude Code Desktop Agent Setup](https://labs.prompthon.io/workshops/desktop-agents/claude-code.md): Install Claude Code, connect to project-scoped MCP tools, and use it as a repo-first local coding agent.
- [Gmail OAuth Setup](https://labs.prompthon.io/workshops/gmail-oauth-setup.md): Create Google Cloud OAuth credentials for local Gmail-backed agent starters.
- [Events](https://labs.prompthon.io/workshops/index.md): Upcoming and past Prompthon events, plus the workshop materials used during hands-on sessions.
- [OpenClaw Accounts And Onboarding](https://labs.prompthon.io/workshops/openclaw/accounts-and-onboarding.md): Create the Discord bot, optionally prepare Tavily, install OpenClaw, and run onboarding.
- [OpenClaw Commands](https://labs.prompthon.io/workshops/openclaw/commands.md): A quick reference for gateway, dashboard, health, config, update, and troubleshooting commands.
- [OpenClaw Workshop](https://labs.prompthon.io/workshops/openclaw/index.md): Install OpenClaw, prepare accounts, onboard an agent, and keep common commands nearby.
- [OpenClaw Mac Setup](https://labs.prompthon.io/workshops/openclaw/install-mac.md): Prepare Node 22, npm, Codex, and the model default before OpenClaw onboarding.
- [OpenClaw Windows Setup](https://labs.prompthon.io/workshops/openclaw/install-windows.md): Prepare WSL2, Node 22, npm, and Codex before continuing to OpenClaw onboarding.
- [Skills Introduction](https://labs.prompthon.io/workshops/skills-introduction.md): Understand what Codex skills are and where they fit after desktop-agent setup.

## OpenAPI Specs

- [openapi](https://labs.prompthon.io/api-reference/openapi.json)