fix(cli): vertical fallback for markdown tables wider than terminal#23948
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Follow-up to #23863 (CJK table alignment). The realigner was correctly padding pipes to identical column offsets, but when a table's natural width exceeds terminal cells it produced lines that the terminal soft-wrapped mid-cell, destroying column alignment visually even though the bytes were perfectly padded. Reported as 'columns are not aligned' on tables containing one long row alongside several short rows. Approach mirrors Claude Code's MarkdownTable.tsx narrow-terminal fallback: when realign_markdown_tables is given an available_width budget and the rebuilt horizontal table exceeds it, render each body row as 'Header: value' lines separated by a thin ─ rule. Word-wraps oversize values at the budget with a 2-space continuation indent. - agent/markdown_tables.py: realign_markdown_tables(text, available_width=None); threshold check at the top of _render_block flips into a new _render_vertical fallback. Includes _wrap_to_width with hard-break for tokens longer than the budget. - cli.py: helper _terminal_width_for_streaming() returns shutil.get_terminal_size().columns minus _STREAM_PAD and a 2-cell safety margin; passed to all three realign call sites (_render_final_assistant_content for strip+render Panel paths, and the streaming flushers in _emit_stream_text / _flush_stream). - tests/agent/test_markdown_tables.py: 4 new tests covering the overflow-vertical fallback for ASCII + CJK content, the 'fits → keep horizontal' case, and the long-cell wrap with indent. Live-verified: with COLUMNS=100, the user's reported 'long row in ASCII table' case now renders as vertical key-value rows that all fit the panel; the 6-column CJK comparison table still renders as an aligned horizontal table because it fits inside 100 cols.
Contributor
🔎 Lint report:
|
| Rule | Count |
|---|---|
invalid-argument-type |
3 |
First entries
run_agent.py:13499: [invalid-argument-type] invalid-argument-type: Argument to function `_is_oauth_token` is incorrect: Expected `str`, found `str | dict[Unknown | str, Unknown | str | dict[str, str]] | Any | ... omitted 3 union elements`
run_agent.py:13502: [invalid-argument-type] invalid-argument-type: Argument to function `len` is incorrect: Expected `Sized`, found `(str & ~AlwaysFalsy) | (dict[Unknown | str, Unknown | str | dict[str, str]] & ~AlwaysFalsy) | (Any & ~AlwaysFalsy) | ... omitted 3 union elements`
run_agent.py:7283: [invalid-argument-type] invalid-argument-type: Argument to function `build_anthropic_client` is incorrect: Expected `str`, found `str | dict[Unknown | str, Unknown | str | dict[str, str]] | Any | ... omitted 3 union elements`
✅ Fixed issues (3):
| Rule | Count |
|---|---|
invalid-argument-type |
3 |
First entries
run_agent.py:7283: [invalid-argument-type] invalid-argument-type: Argument to function `build_anthropic_client` is incorrect: Expected `str`, found `str | dict[Unknown, Unknown] | Any | ... omitted 3 union elements`
run_agent.py:13499: [invalid-argument-type] invalid-argument-type: Argument to function `_is_oauth_token` is incorrect: Expected `str`, found `str | dict[Unknown, Unknown] | Any | ... omitted 3 union elements`
run_agent.py:13502: [invalid-argument-type] invalid-argument-type: Argument to function `len` is incorrect: Expected `Sized`, found `(str & ~AlwaysFalsy) | (dict[Unknown, Unknown] & ~AlwaysFalsy) | (Any & ~AlwaysFalsy) | ... omitted 3 union elements`
Unchanged: 4299 pre-existing issues carried over.
Diagnostics are surfaced as warnings — this check never fails the build.
This was referenced May 12, 2026
02356abc
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May 14, 2026
…ousResearch#23948) Follow-up to NousResearch#23863 (CJK table alignment). The realigner was correctly padding pipes to identical column offsets, but when a table's natural width exceeds terminal cells it produced lines that the terminal soft-wrapped mid-cell, destroying column alignment visually even though the bytes were perfectly padded. Reported as 'columns are not aligned' on tables containing one long row alongside several short rows. Approach mirrors Claude Code's MarkdownTable.tsx narrow-terminal fallback: when realign_markdown_tables is given an available_width budget and the rebuilt horizontal table exceeds it, render each body row as 'Header: value' lines separated by a thin ─ rule. Word-wraps oversize values at the budget with a 2-space continuation indent. - agent/markdown_tables.py: realign_markdown_tables(text, available_width=None); threshold check at the top of _render_block flips into a new _render_vertical fallback. Includes _wrap_to_width with hard-break for tokens longer than the budget. - cli.py: helper _terminal_width_for_streaming() returns shutil.get_terminal_size().columns minus _STREAM_PAD and a 2-cell safety margin; passed to all three realign call sites (_render_final_assistant_content for strip+render Panel paths, and the streaming flushers in _emit_stream_text / _flush_stream). - tests/agent/test_markdown_tables.py: 4 new tests covering the overflow-vertical fallback for ASCII + CJK content, the 'fits → keep horizontal' case, and the long-cell wrap with indent. Live-verified: with COLUMNS=100, the user's reported 'long row in ASCII table' case now renders as vertical key-value rows that all fit the panel; the 6-column CJK comparison table still renders as an aligned horizontal table because it fits inside 100 cols.
jsboige
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May 14, 2026
…ousResearch#23948) Follow-up to NousResearch#23863 (CJK table alignment). The realigner was correctly padding pipes to identical column offsets, but when a table's natural width exceeds terminal cells it produced lines that the terminal soft-wrapped mid-cell, destroying column alignment visually even though the bytes were perfectly padded. Reported as 'columns are not aligned' on tables containing one long row alongside several short rows. Approach mirrors Claude Code's MarkdownTable.tsx narrow-terminal fallback: when realign_markdown_tables is given an available_width budget and the rebuilt horizontal table exceeds it, render each body row as 'Header: value' lines separated by a thin ─ rule. Word-wraps oversize values at the budget with a 2-space continuation indent. - agent/markdown_tables.py: realign_markdown_tables(text, available_width=None); threshold check at the top of _render_block flips into a new _render_vertical fallback. Includes _wrap_to_width with hard-break for tokens longer than the budget. - cli.py: helper _terminal_width_for_streaming() returns shutil.get_terminal_size().columns minus _STREAM_PAD and a 2-cell safety margin; passed to all three realign call sites (_render_final_assistant_content for strip+render Panel paths, and the streaming flushers in _emit_stream_text / _flush_stream). - tests/agent/test_markdown_tables.py: 4 new tests covering the overflow-vertical fallback for ASCII + CJK content, the 'fits → keep horizontal' case, and the long-cell wrap with indent. Live-verified: with COLUMNS=100, the user's reported 'long row in ASCII table' case now renders as vertical key-value rows that all fit the panel; the 6-column CJK comparison table still renders as an aligned horizontal table because it fits inside 100 cols.
AlexFoxD
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May 21, 2026
…ousResearch#23948) Follow-up to NousResearch#23863 (CJK table alignment). The realigner was correctly padding pipes to identical column offsets, but when a table's natural width exceeds terminal cells it produced lines that the terminal soft-wrapped mid-cell, destroying column alignment visually even though the bytes were perfectly padded. Reported as 'columns are not aligned' on tables containing one long row alongside several short rows. Approach mirrors Claude Code's MarkdownTable.tsx narrow-terminal fallback: when realign_markdown_tables is given an available_width budget and the rebuilt horizontal table exceeds it, render each body row as 'Header: value' lines separated by a thin ─ rule. Word-wraps oversize values at the budget with a 2-space continuation indent. - agent/markdown_tables.py: realign_markdown_tables(text, available_width=None); threshold check at the top of _render_block flips into a new _render_vertical fallback. Includes _wrap_to_width with hard-break for tokens longer than the budget. - cli.py: helper _terminal_width_for_streaming() returns shutil.get_terminal_size().columns minus _STREAM_PAD and a 2-cell safety margin; passed to all three realign call sites (_render_final_assistant_content for strip+render Panel paths, and the streaming flushers in _emit_stream_text / _flush_stream). - tests/agent/test_markdown_tables.py: 4 new tests covering the overflow-vertical fallback for ASCII + CJK content, the 'fits → keep horizontal' case, and the long-cell wrap with indent. Live-verified: with COLUMNS=100, the user's reported 'long row in ASCII table' case now renders as vertical key-value rows that all fit the panel; the 6-column CJK comparison table still renders as an aligned horizontal table because it fits inside 100 cols.
gweeteve
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to gweeteve/hermes-agent
that referenced
this pull request
Jun 2, 2026
…ousResearch#23948) Follow-up to NousResearch#23863 (CJK table alignment). The realigner was correctly padding pipes to identical column offsets, but when a table's natural width exceeds terminal cells it produced lines that the terminal soft-wrapped mid-cell, destroying column alignment visually even though the bytes were perfectly padded. Reported as 'columns are not aligned' on tables containing one long row alongside several short rows. Approach mirrors Claude Code's MarkdownTable.tsx narrow-terminal fallback: when realign_markdown_tables is given an available_width budget and the rebuilt horizontal table exceeds it, render each body row as 'Header: value' lines separated by a thin ─ rule. Word-wraps oversize values at the budget with a 2-space continuation indent. - agent/markdown_tables.py: realign_markdown_tables(text, available_width=None); threshold check at the top of _render_block flips into a new _render_vertical fallback. Includes _wrap_to_width with hard-break for tokens longer than the budget. - cli.py: helper _terminal_width_for_streaming() returns shutil.get_terminal_size().columns minus _STREAM_PAD and a 2-cell safety margin; passed to all three realign call sites (_render_final_assistant_content for strip+render Panel paths, and the streaming flushers in _emit_stream_text / _flush_stream). - tests/agent/test_markdown_tables.py: 4 new tests covering the overflow-vertical fallback for ASCII + CJK content, the 'fits → keep horizontal' case, and the long-cell wrap with indent. Live-verified: with COLUMNS=100, the user's reported 'long row in ASCII table' case now renders as vertical key-value rows that all fit the panel; the 6-column CJK comparison table still renders as an aligned horizontal table because it fits inside 100 cols.
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Summary
Follow-up to #23863. That PR aligned table pipes correctly but produced tables wider than the terminal in the long-row case (e.g., one row with a description that's 150+ chars, others short). Even with perfectly aligned bytes, the terminal soft-wraps each row at column N differently, and the user sees a broken table — that's the report you saw on image15.
This PR adds the missing piece: when the realigned horizontal table would exceed available terminal cells, fall back to vertical key-value rows. Mirrors Claude Code's
MarkdownTable.tsxstrategy — they hit the same wall.Before / after
Same input,
COLUMNS=100:Before this PR (table that doesn't fit):
Pipes are byte-aligned but terminal wraps each row at col 100, breaking the visual.
After:
Tables that fit (e.g., the original CJK case from #23863, ~62 cells in a 100-col panel) still render as the aligned horizontal pipe-bordered grid.
Changes
agent/markdown_tables.py—realign_markdown_tables(text, available_width=None). The horizontal renderer computes its full width upfront; ifavailable_widthis given and the table would exceed it, swaps to_render_verticalwhich emitsHeader: valuerows with a ─ separator between body rows. New_wrap_to_widthfor word-wrapping oversize values (with hard-break for tokens longer than the budget).cli.py— new helper_terminal_width_for_streaming()returnsshutil.get_terminal_size().columns - len(_STREAM_PAD) - 2(the 2-cell safety margin absorbs resize races). Plumbed into all three realigner call sites:_render_final_assistant_contentfor the Panel paths (strip + render),_emit_stream_text's table-block flush, and_flush_stream's end-of-stream flush.Tests
test_overflow_falls_back_to_vertical_when_table_wider_than_terminal— long-row ASCII case, asserts no pipes,Header: valuecontent present, every line fits the budget.test_horizontal_kept_when_table_fits— short table, pipe-bordered grid survives, all rows align.test_vertical_fallback_wraps_long_cell_text_with_indent— value longer than budget wraps with 2-space indent, every continuation fits.test_overflow_falls_back_to_vertical_for_cjk_too— same fallback fires when CJK content pushes the table over budget;wcswidth(line) ≤ budgetfor every line.test_markdown_tables.py, fulltests/cli/667 pass.Live verification
COLUMNS=100 hermes chat -qwith a 5-row table where one row has a 200-char description: renders as 5 vertical row-blocks separated by ─ rules, every line fits the panel, long row's value wraps with indented continuation lines.