Annotation layers rail

Static open-state blueprint of a text-selection toolbar with comment, highlight, suggest-edit, and link affordances plus a five-color swatch row.

Design canvas mockup with four numbered comment pins and a side rail listing each pin thread with author, note, and resolve actions.

Code diff panel with line numbers, added and removed rows, and a line anchored review thread with replies, composer, and resolve action.

Review feedback promoted into action items, with filter chips above rows pairing each source quote with an assignee, due date, and status badge.

Standalone comment composer with a formatting toolbar, file attach, at mention hint, and a Cmd Enter keyboard shortcut hint.

Cross document notification feed with mention, reply, and resolve items, unread dots, type filter chips, and a mark all read action.

Document comment sidebar with four threads anchored to quoted text, reply counts, resolve affordances, and one collapsed resolved thread.

Highlighted text excerpt with an attached margin thread showing two comments, a reply composer, emoji reactions, and resolve and delete controls.

Static open state of an at mention picker showing six workspace members with one row highlighted and keyboard navigation hints.

Comment threads on a versioned document, split into ones matched to the new version and ones whose anchors broke, with stale quotes and reattach actions.

Draft comments held for one review, each with a section anchor, quote, and edit controls, above a summary field, verdict choices, and a submit button.

Emoji reaction chips with counts showing active and inactive states, an add reaction affordance, and a static hover panel listing who reacted.