Visuals: live edits (agent updates a visual in place, you edit with a live preview, office previews refresh)

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
30/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Tech stack
electron, typescript
Domain
desktop, developer-experience

Research direction

Start with the referenced Canvas editing APIs, artifacts.canvas.*, and the spec at docs/spec/clauses/21-visuals-and-artifacts.md; then inspect the workflow tests for the three parts. The issue defines completion through live visual editing with version history, in-place render_html updates, and bounded office preview refreshes. It requests one PR per part, so choose a part and confirm its scope against the spec before estimating implementation.

Written by the indexing model from the issue text.

Description

p1 type:feature

Follows #361 and #771. Today an agent's visual can't be changed in place: each render_html adds a new card, Mermaid's Show code is read-only, chart and report blocks have no editing, and an office preview is a one-time picture.

1. You edit any visual with a live preview (first)

  • Mermaid, chart, html-report blocks and render_html pages have an Edit action.
  • Edit opens the source beside a preview that redraws as you type (debounced); invalid source shows its error and keeps the last good drawing.
  • Save keeps the edit as a new version of that visual in the chat; Cancel discards it. The original stays reachable.
  • The agent sees the edited source on its next turn.
  • Builds on Canvas editing (artifacts.canvas.*); no second editor.

2. The agent updates a visual in place

  • render_html takes an optional id of a page it replaces; that card updates instead of a new one appearing.
  • The card keeps earlier versions behind a switch ("v2 of 3"); your own edits from part 1 count as versions.
  • Updating a page from another chat is refused.

3. Office previews refresh by themselves

  • An office file shown in the chat (office_render, file previews) redraws when the file changes on disk, whether edited in Excel, Numbers, Word or by the agent.
  • Bounded: watching stops when the preview is off screen or closed; renders are debounced.
  • No in-chat cell editor (out of scope).

Spec-driven: cases under docs/spec/clauses/21-visuals-and-artifacts.md, workflow tests red before green, one PR per part.

Dominant language
TypeScript
Stars
3
Forks
0
Avg merge
17h 33m
Merged PRs (30d)
163

Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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