Themes

Claude plugin themes define experimental discovery, manifest wiring, pass-through behavior, and provider limits.

Feature	Feature status	claude	codex	cursor
`plugin-themes`	`implemented`	`pass_through`	`not_applicable`	`planned`

Support vocabulary: Feature Reference

Claude plugins can include experimental themes under themes/. Skillset treats themes as provider-native Claude plugin pass-through and declares the documented experimental manifest field when the directory is present.

Authoring

Place theme files under .skillset/plugins/<plugin>/themes/. Discovery is automatic, and the directory is copied only when the Claude plugin target is active.

.skillset/plugins/reviewer/themes/dark.json

Target Rendering

Source	Claude output	Codex output	Status	Notes
`<source-root>/plugins/<plugin>/themes/`	plugin root `themes/` plus manifest `experimental.themes: "./themes/"`	n/a	`target_native` / `implemented`	Opaque pass-through; theme semantics remain Claude-native.

Diagnostics

Back up unmanaged generated-output collisions before replacing them in confirmed builds.
Reject divergent provider source that tries to emit the same generated theme path.
Do not copy Claude themes into Codex plugin output.

Provenance

Theme files participate in plugin output hashes and lock provenance as target-native companion files. They are not plugin-feature entries because the implemented contract does not provide themes.source.

Evidence

Plugin fixtures verify experimental manifest wiring, opaque directory copying, provider-specific output separation, and the absence of a Codex projection.