> Rendered: https://z29k.github.io/rescriptum/guide/reference/index · Docs index: https://z29k.github.io/rescriptum/llms.txt

# Reference

The exhaustive counterpart to the rest of the guide. Tables and contracts, one page per
surface:

- **[Configuration](./configuration.md)** — every environment variable, its default, and
  what an invalid value does.
- **[HTTP surface](./endpoints.md)** — methods, status codes, headers, limits.
- **[Formats and endpoint aliases](./formats.md)** — which extension is which format, and
  which URL segment asks for it.
- **[Command line](./cli.md)** — every subcommand and flag.

Looking for the narrative instead? Start at [what rescriptum is](../index.md).