# Check rules Every rule prongs check applies, by profile: what it catches, how bad it is, and the fix. Each comes from the rule’s own package, so this page lists exactly what check runs. Errors fail `prongs check`; warnings are reported but pass; info is a note. A deliberate exception takes `// prongs-ignore: ` on the line above, and existing findings can be recorded in a baseline so only new ones fail. ## Every profile ### `unknown-intent` error An intent that is not in the registry. Suggests the closest names, so a typo is one step from the fix. Flagged ```tsx Delete ``` Instead ```tsx Delete ``` ### `internal-intent` error A ref-only intent (a look, a status, a level) used where code should name a meaning. Suggests the meaning intents built on it. Flagged ```tsx Save ``` Instead ```tsx Save ``` ### `deprecated-intent` warning An intent marked deprecated. Suggests the intent its "not for" line points to. ### `unknown-check` warning An intent asks for a per-intent check its profile does not implement. ## UI ### `raw-element` error A ` ``` Instead ```tsx Delete ``` ### `raw-surface` error A `
` that draws its own box (background, border, shadow). Suggests a Layout intent that says what the region is. Flagged ```tsx
…
``` Instead ```tsx … ``` ### `domain-mismatch` error An intent rendered by the wrong component, like an action on [``](https://www.prongs.dev/docs/components/text.md). Flagged ```tsx Save ``` Instead ```tsx Save ``` ### `leaf-classname` error `className` on [``](https://www.prongs.dev/docs/components/text.md), [``](https://www.prongs.dev/docs/components/action.md), [``](https://www.prongs.dev/docs/components/field.md), [``](https://www.prongs.dev/docs/components/media.md), [``](https://www.prongs.dev/docs/components/dialog.md) or [``](https://www.prongs.dev/docs/components/popover.md), which take intents and layout props only. Flagged ```tsx … ``` Instead ```tsx … ``` ### `leaf-style` error `style` on a component that takes no style. An inline style overrides the intent just like a className. Flagged ```tsx Save ``` Instead ```tsx Delete ``` ### `layout-visual-class` error Colours, type or borders in a [``](https://www.prongs.dev/docs/components/layout.md) className, which is for layout and spacing only. Flagged ```tsx … ``` Instead ```tsx … ``` ### `repeated-tweak` warning The same layout class added to the same [``](https://www.prongs.dev/docs/components/layout.md) intent in three or more places, across the whole project. Each is allowed, but a tweak that repeats is a missing intent: points to an intent that already has it, or a ready `add-intent` command. `check --suggest` lists these with the overrides. Flagged ```tsx … // and in 15 other places ``` Instead ```tsx … ``` ### `raw-style` error An inline style that sets colour, type or borders. Layout values and CSS variables are fine. Flagged ```tsx
…
``` Instead ```tsx ``` ### `unsafe-classname` warning The escape hatch. A warning with a `// prongs-unsafe: ` comment on the line above, an error without one; counted by `--max-unsafe`. ### `name-mismatch` warning An action whose handler, label or text points to a different intent, through the intents’ keywords. Flagged ```tsx Share ``` Instead ```tsx Share ``` ### `raw-look` error A plain element with look classes that the other rules do not cover: a `
` with text colours, a `` drawn as a dot, a styled `
` or `