## 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.
sayan-oai ·
Felipe Coury ·