# Toast — Builder Docs > Toast is a desktop app for building composable automations ("doughs"). This is the developer guide for authoring kits, tools, flours, and doughs — by hand or with the dough-creator plugin. Docs are bilingual; the links below are the English pages (Korean is under /ko). The entire guide as a single file is at https://postlab.ai/llms-full.txt. ## Start - [Overview](https://postlab.ai/en/docs): What Toast is, who the guide is for, and the two ways to author. - [Quickstart](https://postlab.ai/en/docs/quickstart): Build and bake your first kit end-to-end (a no-auth weather kit). - [Core concepts](https://postlab.ai/en/docs/concepts): The four artifacts (tool/flour/dough/kit), the kind & class axes, dough anatomy, and how Toast differs from MCP/Zapier. ## Build - [What to build](https://postlab.ai/en/docs/build): Decide what to build — a chooser that routes intent to the right artifact. - [flour](https://postlab.ai/en/docs/build/flour): Author a flour (one action): tool flour (Python code) and agent flour (LLM reasoning). - [dough](https://postlab.ai/en/docs/build/dough): Compose flours and doughs into a dough — step shapes, iteration (each/all), branching. - [kit](https://postlab.ai/en/docs/build/kit): Package a kit and add authentication (OAuth / BYOK). - [plugin](https://postlab.ai/en/docs/build/dough-creator): Build with the dough-creator Claude Code plugin: /create -> /test -> /publish. ## In practice - [Install & automate](https://postlab.ai/en/docs/automate): Install and run on a schedule, gate steps with HITL approval, and operational limits. - [Publish & fork](https://postlab.ai/en/docs/publish): Publish a dough closure and fork from the catalog. - [Examples](https://postlab.ai/en/docs/examples): A worked connected-app example (Gmail -> agent -> Slack), a pattern gallery, and scenarios. ## Reference - [Reference](https://postlab.ai/en/docs/reference): Full field reference: dough.yaml, inputs/outputs, kit.yaml, ${ref} syntax, glaze, gotchas, ground truth. ## Optional - [Full text](https://postlab.ai/llms-full.txt): the entire guide concatenated into one file. - [Product overview](https://postlab.ai/en/product): higher-level "what is Toast" for non-developers.