# Developer Guide

- [Workflow YAML Syntax](https://docs.hexabot.ai/developer-guide/workflow-yaml-syntax.md): Understand Hexabot workflow YAML structure, execution rules, and authoring patterns for tasks, flow, and outputs.
- [Develop Custom Actions](https://docs.hexabot.ai/developer-guide/develop-custom-actions.md): Create reusable workflow steps with Zod schemas, metadata, and an execute function.
- [Packaging Custom Actions](https://docs.hexabot.ai/developer-guide/develop-custom-actions/packaging-custom-actions.md): Custom actions are the preferred way to add reusable workflow capabilities to Hexabot v3. Use an action package when the same integration or business action must be installed in more than one Hexabot
- [Testing Custom Actions](https://docs.hexabot.ai/developer-guide/develop-custom-actions/testing-custom-actions.md): Unit tests give custom Hexabot actions a stable contract before the action is published or reused across projects. A good action test suite should cover the workflow-facing contract, the execution beh
- [Develop Custom Channels](https://docs.hexabot.ai/developer-guide/develop-custom-channels.md): Build custom Hexabot channels that parse webhooks, map subscribers, and send platform-specific messages.
- [CLI Command Reference](https://docs.hexabot.ai/developer-guide/cli-command-reference.md): Install, run, and manage Hexabot projects with the official CLI.
- [SMTP Configuration](https://docs.hexabot.ai/developer-guide/smtp-configuration.md): Configure SMTP delivery for transactional emails such as account confirmation and password reset.
- [Setup Node.js with NVM](https://docs.hexabot.ai/developer-guide/setup-node.js-with-nvm.md): Install and manage Node.js 20.19.0 or later with NVM for local Hexabot development.
- [Setting Up Docker](https://docs.hexabot.ai/developer-guide/setting-up-docker.md)
- [Extensions](https://docs.hexabot.ai/developer-guide/extensions.md)
- [Plugins](https://docs.hexabot.ai/developer-guide/integrations.md)
- [Hexabot Plugin Development](https://docs.hexabot.ai/developer-guide/integrations/hexabot-plugin-development.md)
- [Build your First Plugin](https://docs.hexabot.ai/developer-guide/integrations/build-your-first-plugin.md)


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