## What changed
- Convert `codex-file-citation` directives in assistant Markdown into local-file links while preserving paths with Markdown-significant characters, Unicode, Windows separators, and location suffixes.
- Apply citation rendering consistently to streaming output, finalized messages and plans, and resume-picker transcript previews.
- Keep directives literal in code, HTML, existing links, reference definitions, escaped text, and generic Markdown rendering.
- Bound repeated parsing work for malformed directive candidates without limiting valid citations.
## Testing
- Add coverage for citation parsing and rendering across finalized, streaming, and resume-preview output, including malformed input and path edge cases.
GitOrigin-RevId: 5a0bfb3fc7ac21b7e8846fd170a349fb2d2d5e85
## What changed
- Add a shared parser for assistant directives that handles quoted and unquoted attributes, embedded braces, escaped quotes, and malformed input consistently.
- Use the parser for Git action receipts and code comments, including Git actions that follow a rendered code comment on the same line.
- Parse `file://` links with `PathUri` so Windows drive and UNC paths render correctly regardless of the TUI host while preserving line and column anchors.
## Testing
- Add unit coverage for directive grammar and snapshot coverage for code comments, Git actions, and foreign Windows file links.
GitOrigin-RevId: 8252b3254b92ec6943096026e74c19160c4e24cc
## What changed
- Render descriptive Markdown labels alongside canonical local file targets instead of discarding them.
- Collapse labels that resolve to the same path, accounting for relative and absolute forms, `file://` URLs, percent encoding, case, separators, and location suffixes.
- Preserve `~/` destinations for display and keep absolute paths unless they can be shortened relative to the session working directory.
## Testing
- Add unit and snapshot coverage for descriptive and path-equivalent labels, invalid percent encoding, trailing separators, Unix and Windows paths, UNC paths, `file://` URLs, and table wrapping.
GitOrigin-RevId: 636bf4485b2899d96c6273be3f3b7f38728c9013
## What changed
- Render web-link labels in cyan with an underline and hide the repeated destination in recognized terminals with hyperlink support.
- Keep destinations visible for unknown terminals, multiplexers, non-terminal output, and empty labels so the URL remains usable.
- Preserve OSC 8 link targets through prose and table wrapping, streaming updates, transcript clipping, and pager scrolling.
## Testing
- Add coverage for terminal detection, label formatting and fallbacks, wrapped tables and prose, streaming parity, history output, and scrolled transcript rendering.
GitOrigin-RevId: 4a09e41e349ba299022a9c00f0c25892d9aaefe3
## 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
Streaming TUI responses repeatedly rendered the entire accumulated Markdown source for each committed delta, including blocks whose output could no longer change.
## What changed
- Retain rendered output for completed top-level Markdown blocks and rerender only the final mutable block as new source arrives.
- Track block boundaries during the existing Markdown parser pass and map them through table-fence normalization.
- Preserve canonical full rendering when source-wide state may affect earlier output, including reference link definitions and inline visualizations, and when the width or render mode changes.
- Append raw-mode lines directly while preserving blank lines.
## Testing
Added coverage that compares incremental output with full rendering across paragraphs, headings, lists, block quotes, code fences, tables, HTML blocks, links, visualizations, render-mode changes, and normalized table fences.
GitOrigin-RevId: 748171c4ed58923329b59c48ea3c2afa4819ec88
## Why
The key/value markdown table renderer added in #24636 still operates on
`Line` values, while table cells and rendered table output now carry
`HyperlinkLine`. That mismatch breaks `codex-tui` compilation on `main`
and would risk losing semantic web-link annotations if corrected by
flattening the values.
## What changed
- Make key/value record rendering wrap and emit `HyperlinkLine` values
consistently with the existing grid renderer.
- Remap wrapped hyperlink ranges and shift them when value content is
prefixed by record-mode indentation or labels.
- Add focused coverage verifying key/value fallback output preserves
web-link destinations.
## Verification
- `just test -p codex-tui -E
'test(key_value_table_keeps_web_annotations) |
test(/table_renders_(key_value_records_when_compact_fragmentation_is_systemic_snapshot|stacked_key_value_records_when_path_column_becomes_too_narrow_snapshot|records_when_multiple_prose_columns_are_starved_snapshot)/)'`
## Stack
- **Base: #24489 [1 of 2]** - render markdown tables in app style.
- **Current: #24636 [2 of 2]** - render cramped markdown tables as
key/value records.
Review this PR against `fcoury/app-style-markdown-tables`; it contains
only the fallback behavior for cramped tables.
## Why
The row-separated markdown table rendering in #24489 remains readable
while columns have usable room. Once long links or multiple prose-heavy
columns are compressed into narrow allocations, however, the grid can
turn words and paths into tall vertical strips that are difficult to
scan. In those cases the content matters more than preserving the grid
shape.
## What Changed
<table>
<tr><td>
<p align="center"><b>
Normal
</b></p>
<img width="1722" height="619" alt="CleanShot 2026-05-27 at 14 32 57"
src="https://github.com/user-attachments/assets/d04f5fbd-6064-4acd-91bd-072d19b983df"
/>
</td></tr>
<tr><td>
<p align="center"><b>
Narrow
</b></p>
<img width="863" height="1013" alt="CleanShot 2026-05-27 at 14 33 12"
src="https://github.com/user-attachments/assets/6a7d2968-0a68-48fd-ab5d-209b3dbaf03e"
/>
</td></tr>
<tr><td>
<p align="center"><b>
Very narrow
</b></p>
<img width="435" height="746" alt="CleanShot 2026-05-27 at 14 33 47"
src="https://github.com/user-attachments/assets/f6a59e30-b1d2-4063-9c05-43933abc77d6"
/>
</td></tr>
</table>
- Detect tables whose grid allocation causes systemic token
fragmentation or starves multiple prose-heavy columns.
- Render those tables as repeated key/value records instead of retaining
an unreadable grid.
- Use aligned label/value records when there is useful horizontal room,
and switch to a stacked narrow-record layout where each label is
followed by a full-width value when width is especially constrained.
- Preserve the themed label color, rich inline formatting, links, and
the existing grid presentation for tables that remain readable.
- Add snapshot coverage for path-heavy narrow tables, prose-heavy issue
tables, systemic compact fragmentation, and a control case that should
continue to render as a grid.
## How to Test
1. Start Codex from this branch and render a normal multi-column
markdown table at a comfortable terminal width. Confirm it still appears
as the styled row-separated grid from #24489.
2. Render a table containing a long linked record identifier or
file-like value, then narrow the terminal until the grid would split the
value into vertical fragments. Confirm it switches to key/value records,
with labels above values at very narrow widths.
3. Render a table with multiple prose-heavy columns, such as an issue
summary table with `Issue`, `Activity`, `Complexity`, and `Why start`.
Confirm a cramped width switches to records rather than wrapping several
columns into hard-to-read strips.
4. Render a compact table where only one value wraps mildly. Confirm it
stays in grid form rather than switching prematurely.
## Validation
- Ran `just test -p codex-tui` while developing the fallback and
reviewed/accepted the intended new markdown-render snapshots. The
command still reports two unrelated existing guardian feature-flag test
failures outside this diff.
- Ran `just fix -p codex-tui` and `just fmt` after the Rust changes were
complete.
- `just argument-comment-lint` cannot reach source linting locally
because Bazel fails while resolving LLVM sanitizer headers; touched
positional literal callsites were inspected manually and annotated where
needed.
Ian MacLeod