Collapse a running tool line into a summary, stream the reply, swap the shimmer for the next tool row

What the source does

The scrolled transcript shows a paragraph, two tool rows, the right-aligned sent prompt and a greyed, shimmering "Running npm install…" line (local f0-6, master 4030-4036). At ~f7 that line is replaced in place by a "Read files, ran a command" summary row, a reply sentence streams in word by word beneath it (~f7-16) and a shimmering "Thinking" placeholder sits below. At ~f27 (master 4057) the placeholder is replaced by a new grey tool row ("Running python3 …"), which holds to the end.

A streamed agent turn: a running status line collapses into a summary row, the reply streams by words, and the thinking shimmer is replaced in place by the next tool row.

Phase notes

1. Frame 0 — Running tool line shimmers
2. Frame 7 — Line collapses into a summary row; reply starts streaming
3. Frame 16 — Reply complete, thinking shimmer below
4. Frame 27 — Shimmer replaced by the next tool row

Use this example

1. Watch the source and draft at normal speed. Compare the order of actions, the held states, and the transition into the result.
2. Download the project and read its README before changing inputs. The package includes its implementation and declared dependencies.
3. Replace the sample content through the package's documented input or content builder. Keep source footage in the research comparison.
4. Render your adaptation and inspect text fit, framing, intermediate states, and entry and exit frames.

Recorded limits

• Visual fidelity is an authored draft judgement from sampled source frames; no independent blind review or native Resolve execution.
• Both variants rerendered from the packaged text renderer to repair a prior code/preview mismatch.

Inspect the original verification record ↗