Fragments Error Codes

The diagnostic set itself is currently experimental — each entry in the catalog lists its lifecycle.

Catalog

FUI1001Component should use the canonical primitive

components/non-canonical · Canonical Usage · serious · experimental

FUI1002Preferred component should be used

components/preferred-component · Canonical Usage · serious · experimental

FUI1003Import should use the preferred path

imports/preferred-path · Canonical Usage · moderate · experimental

FUI1004Library component should be preferred

components/prefer-library · Canonical Usage · moderate · experimental

FUI1005Component is not in the allowed set

components/allow · Canonical Usage · serious · experimental

FUI1006Component is denied by policy

components/deny · Canonical Usage · serious · experimental

FUI1007Component shadows a canonical primitive

components/shadow-component · Canonical Usage · moderate · experimental

FUI2001Design token is required

tokens/require-design-tokens · Tokens · serious · experimental

FUI2002Token prefix is not allowed

tokens/allowed-prefixes · Tokens · moderate · experimental

FUI2003Token fallback is required

tokens/require-dual-fallback · Tokens · serious · experimental

FUI2004Raw dimension should use a token

styles/no-raw-dimensions · Tokens · serious · experimental

FUI2005Raw color should use a token

styles/no-raw-color · Tokens · serious · experimental

FUI2006Raw spacing should use the scale

styles/no-raw-spacing · Tokens · serious · experimental

FUI2007Tailwind arbitrary color should use a token

tailwind/arbitrary-color · Tokens · moderate · experimental

FUI2008Tailwind arbitrary spacing should use the scale

tailwind/arbitrary-spacing · Tokens · moderate · experimental

FUI2009Tailwind palette is forbidden

tailwind/forbidden-palette · Tokens · moderate · experimental

FUI2010Tailwind color should use a resolved token

tailwind/raw-color-via-token · Tokens · moderate · experimental

FUI2011Tailwind spacing token is off scale

tailwind/off-scale-spacing-token · Tokens · moderate · experimental

FUI2012Tailwind class is unknown

tailwind/unknown-class · Tokens · moderate · experimental

FUI2013Brand seed token is required

brand/enforce-seeds · Tokens · serious · experimental

FUI2014Theme-coupled literal should use a semantic token

theme/no-theme-coupled-literal · Tokens · moderate · experimental

FUI2015CSS variable is not in the contract vocabulary

tokens/css-vars-must-be-defined · Tokens · moderate · experimental

FUI2016Raw typography should use a token

styles/no-raw-typography · Tokens · serious · experimental

FUI2017Local token differs from its declared upstream source

tokens/upstream-drift · Tokens · moderate · experimental

FUI3001Accessible name is required

a11y/required-accessible-name · A11y · serious · experimental

FUI3002Accessibility standard failed

a11y/standard · A11y · serious · experimental

FUI5001Required child component is missing

components/required-children · Composition · serious · experimental

FUI5002Component should use canonical composition

components/canonical-usage · Composition · serious · deprecated

FUI5003Too many of a component in one region

composition/cardinality · Composition · moderate · experimental

FUI5004Required companion component is missing from the region

composition/co-occurrence · Composition · moderate · experimental

FUI6001Prop is unknown

props/unknown · Props · moderate · experimental

FUI6002Prop value is invalid

props/invalid-value · Props · serious · experimental

FUI6003Prop pattern is banned

props/banned-pattern · Props · serious · experimental

FUI6004Prop value is forbidden

components/forbidden-prop-value · Props · serious · experimental

FUI6005Component prop is unknown

components/unknown-prop · Props · moderate · experimental

FUI8001Event handler prop is blocked

safety/block-event-handlers · Safety · serious · experimental

FUI8002Dangerous prop is blocked

safety/block-dangerous-props · Safety · critical · experimental

FUI8003Controlled prop is blocked

safety/block-controlled-props · Safety · serious · experimental

FUI8004Function prop is blocked

safety/block-function-props · Safety · serious · experimental

FUI8005Internal prop is blocked

safety/block-internal-props · Safety · critical · experimental

FUI8006Href must be sanitized

safety/sanitize-hrefs · Safety · critical · experimental

FUI9001Suppression is unused

unused-suppression · System · minor · experimental

FUI9002Suppression is expired

expired-suppression · System · serious · experimental

FUI9003Suppression expiry is missing

missing-expiry · System · minor · experimental

FUI9004Config key is not consumed

config/unconsumed-key · System · moderate · experimental

FUI9005Governance scale is not referenced

config/orphan-scale · System · moderate · experimental

FUI9006Rule exclude matched no scanned file

config/unmatched-exclude · System · moderate · experimental

FUI9007Governance record was dropped as a duplicate

config/colliding-record · System · moderate · experimental

FUI9008Rule override outranks a record's authored severity

config/overridden-record-severity · System · moderate · experimental

FUI9009Contract token source cannot be read

contract/unreadable-token-source · System · critical · experimental

FUI9010Fragment definition is not valid

fragment/invalid-definition · System · critical · experimental

FUI9011Fragment definition drifted from its component source

fragment/source-drift · System · critical · experimental

Next steps

RulesThe governance rules that emit FUI codes.ConfigurationPolicy configuration, including in-source suppressions.