videojs

Change SPF playback-engine behaviors. Use when updating, refactoring, splitting, or merging responsibilities, signals, lifecycle, cleanup, or composition.

Create or extract one SPF playback-engine behavior. Use for a new atomic responsibility with signals, lifecycle, cleanup, composition, and tests.

Document an SPF use-case record. Use when the user explicitly requests delivery scenarios, variants, relationships, status, or verification.

Implement an SPF feature from its registry entry. Use when an engine capability spans behaviors and requires tests plus status updates.

Implement an SPF use-case composition. Use when a delivery scenario combines feature variants and requires composition, tests, and status updates.

Review the current branch without editing code. Use for PR-style findings, regressions, merge-base comparison, or pre-merge risk assessment.

Draft or create a videojs/video.js GitHub issue and its native planning relationships. Use when asked to file a bug, feature, task, epic, or repository issue.

Write Video.js guides, concepts, READMEs, and JSDoc. Use for site prose, examples, inline API documentation, or package documentation.

Use whenever a task adds, embeds, or changes video or audio on a web page, even before a player is chosen: an HTML `video` or `audio` element, player component, podcast player, hero or background video, or livestream. Build customizable, accessible Video.js…

Use when someone wants to design their own Video.js player skin: a custom look, layout, or set of controls for a Video.js 10 video or audio player, including one that replicates another player's look, such as YouTube's or Netflix's, built and previewed in a…

Use when building, polishing, or reviewing the interface of a Video.js 10 player: custom controls and overlays, control bars, menus and popovers, sliders, time displays, icons and icon states, motion, color, and control labels, in skin source or in custom…