# ParametersReference key Thulite site parameters in params.toml, including metadata defaults and render hook behavior for links and images.

This reference guide describes the main site parameters in `config/_default/params.toml`.

## Example

```toml {title="params.toml"}
# Hugo
title = "My Thulite site"
description = "Congrats on setting up a new Thulite project!"
images = ["cover.png"]

# Debug
[render_hooks.image]
  errorLevel = 'ignore' # ignore (default), warning, or error (fails the build)

[render_hooks.link]
  errorLevel = 'ignore' # ignore (default), warning, or error (fails the build)
  highlightBroken = false # true or false (default)
```

## title

The website title used across the site output. A string — for example `"Thulite"`.

## description

The default website description used for metadata and previews. A string — for example `"Everything you need to make your Thulite website more visible in search results."`.

## images

Default site images used for social cards and metadata fallbacks. An array of strings — for example `["cover.png"]`.

## render_hooks

### image

#### errorLevel

Controls how image render hook issues are handled. A string — `ignore`, `warning`, or `error`.

### link

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#### errorLevel

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Controls how link render hook issues are handled. A string — `ignore`, `warning`, or `error`.

#### highlightBroken

Whether broken links are highlighted in rendered content. A boolean — `false` (default) or `true`.

## Learn more

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