## What changed
- Add summary labels for MCP and dynamic tools, computer activity, terminal interactions, file edits, images, plan updates, agent calls, and historical tool fallbacks.
- Keep tool output out of summaries and give summaries disclosure identities even when their cells have no activity IDs.
- Bring focused disclosure headers into view and show `expand` or `collapse` in the footer, including for search-expanded entries.
## Testing
Add assertions for tool labels, a transcript snapshot verifying that image-generation output stays hidden, and coverage for expanded and collapsed footer hints.
GitOrigin-RevId: 076b8d74c17f26b10aa8221c65b8b38dbb5ad5ea
## Why
`/ps` previously showed only the first line of each background command, hiding useful details when a command began with an opening parenthesis.
## What changed
Render LF and CRLF line breaks as `↵` in command previews. Include subsequent lines within the existing 80-grapheme limit, and show the truncation marker only when the command exceeds that limit.
## Testing
Update snapshot coverage for multiline commands, including parenthesized commands and CRLF line endings, and add a snapshot for a multiline command exceeding the preview limit.
GitOrigin-RevId: 92544e5636821fc94bc1ca4af389c3c646127c0e
## What changed
- Add compact renderers for commands, MCP calls, computer activity, patches, and plans, with bounded previews and retained transcript details.
- Preserve logical source text, styles, and hyperlink metadata across wrapping so transcript copying can exclude display gutters while retaining meaningful labels. Wrap diff text at grapheme boundaries.
- Add activity identities, ordered detail retention, and deduplicated warning metadata to history cells.
- Hide background terminal interaction notices from chat while retaining them in the transcript, and keep local image-only user messages visible without duplicating image placeholders.
## Testing
Add regression and snapshot coverage for compact previews, retained patch diagnostics, wrapped source text and hyperlinks, question-and-answer labels, and local image placeholders.
GitOrigin-RevId: fd82fadd8ed3418eaba2bc74c4327d9c63d7e997
## What changed
- Render complete patch contents directly in TUI history cells.
- Render all input sent to background terminals inline.
- Remove the preview row and byte limits and their transcript hints so inline and transcript views contain the same content.
## Testing
Update snapshots to cover patches and terminal input longer than the former 12-row preview limit.
GitOrigin-RevId: 9960818a9b51fc0c7f84d9def77b9b1bd8acad6c
## Why
Large input sent to a background terminal can require excessive wrapping work and fill the inline history view.
## What changed
- Limit inline input previews to 12 rendered rows and bound preview processing to 64 KiB.
- Show a transcript hint when input is omitted, while preserving the complete input in transcript and raw views.
- Keep URLs intact when they fit and truncate only the final overflowing line when needed.
## Testing
Add regression coverage for long wrapped input, narrow viewports, zero-width Unicode payloads, URLs, and inputs that fit within the preview budget.
GitOrigin-RevId: c20edf156d5c8364083b1690e41cabd29786a279
## What changed
- Use Ratatui-compatible terminal widths throughout TUI layout, preserving
full-width counters for long lines.
- Wrap and truncate on grapheme boundaries so halfwidth kana sound marks and
emoji sequences stay intact.
- Apply the corrected sizing to text input, selection popups, status and
history cells, Markdown, hyperlinks, and scrollable cloud diffs.
## Testing
- Add focused unit and snapshot coverage for wrapping, truncation, cursor and
mask alignment, popup columns, status output, session headers, Markdown
tables, process output, and scrollable diffs.
GitOrigin-RevId: 294ec0bcff743c6bb16d55ec26308524ce741879
## Why
`codex-rs/tui/src/history_cell.rs` had become the dumping ground for
transcript rendering: the shared trait, common helpers, and the concrete
cells for messages, plans, MCP/search, notices, patches, approvals,
session chrome, and separators all lived together. That made small
transcript changes require reopening a very large file and made
ownership less obvious.
## What changed
- Replaced the monolithic `history_cell.rs` with a `history_cell/`
module tree organized by concern.
- Kept the existing `crate::history_cell::*` surface stable through
re-exports in `history_cell/mod.rs`.
- Moved the existing render coverage into `history_cell/tests.rs`.
## Reviewer notes
- This PR is intentionally mechanical in mature — existing code and
tests moving into files that match their concern.
- The snapshot files under `codex-rs/tui/src/history_cell/snapshots/`
moved with the extracted test module. `insta` resolves these unnamed
snapshots relative to the source file that declares them, so this is
path churn only; snapshot contents were not updated.
- The small non-mechanical seam edits are limited to split fallout:
sibling-module visibility for shared cell containers, moving
approval-specific exec-snippet helpers beside approvals, fixing the
separator module path, and keeping a couple of existing test helpers
reachable after extraction.
Eric Traut