fix(app): name the real command in a wrapped shell row - #166
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A collapsed bash row summarises a command by the names it runs, so
`timeout 120 ssh host uptime` must read `Run ssh`. It read `Run 120`.
The scan skipped the `timeout` wrapper but then took the wrapper's own
duration as the command name.
The scan now remembers which wrapper it skipped, and skips that
wrapper's operands too: a numeric duration (`timeout 120`, `timeout
1.5s`) and the value of a separated flag (`timeout -s KILL`, `sudo -u
root`, `xargs -I {}`). The flag table is keyed by wrapper, because the
same letter differs per binary — `nice -n 10` takes a value, while
`sudo -n` takes none. One flat set would have eaten the command out of
`sudo -n systemctl restart nginx`.
This also fixes `watch -n 2 git status` (was `Run 2`) and
`nice -n 10 make` (was `Run 10`).
mockups/tool-one-liner.html holds the reference implementation of the
same rule ladder, so its JS and prose move in step. Both were run over
the same nine cases and agree.
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📝 WalkthroughWalkthroughThe command summarizer now uses wrapper-specific metadata and stateful scanning to exclude wrapper operands and separated flag values from extracted command names. Tests cover ChangesWrapper command parsing
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🟡 Moderate · up to Collapsed shell summaries can still show the wrong command or omit it for cases such as Possibly related PRs
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Inline comments:
In `@app/lib/ui/session/tool_summary.dart`:
- Around line 365-380: Update the xargs value-flag sets in
app/lib/ui/session/tool_summary.dart lines 365-380 and
mockups/tool-one-liner.html line 741 to include -E, so its following argument is
consumed and xargs -E EOF grep identifies grep correctly. Add a regression
assertion for xargs -E EOF grep in app/test/tool_summary_test.dart lines
278-287.
- Around line 605-611: Limit numeric operand skipping in the parser to wrappers
that explicitly accept bare numeric operands, such as timeout, so sudo 123
preserves 123 as the command name. Update app/lib/ui/session/tool_summary.dart
lines 605-611 and mockups/tool-one-liner.html lines 911-913 with the same
wrapper allowlist. First add a failing commandNames('sudo 123') == '123' test in
app/test/tool_summary_test.dart lines 265-297, then implement the parser
changes.
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app/lib/ui/session/tool_summary.dartapp/test/tool_summary_test.dartmockups/tool-one-liner.html
Three ways a collapsed shell row still lost the command it should name: - `sudo 123` runs a binary called `123`, but any wrapper made a lone number the wrapper's operand. Only `timeout` takes one, and only once, so `timeout 5 sudo 123` is `123`. - `script -c 'make test'` carries a command line, not flag metadata. Listed as a value flag it dropped flag and operand together and the row said nothing; the operand is now scanned as a command. Same for `env -S`. - `xargs -E EOF grep` reported `EOF`: `-E` takes a separated value. The reference parser in mockups/tool-one-liner.html moves in step and was replayed against the same cases.
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`timeout .5s curl URL` collapsed to `Run .5s`: the operand pattern required a digit before the point, while timeout takes whatever its libc parses as a float. The integer part is now optional (`.5s`, and `5.` too), still only for `timeout` and still consumed once — `sudo .5s` keeps naming the binary it runs. mockups/tool-one-liner.html's WRAPPER_ARG moves in step; both parsers were replayed against the same 16 cases.
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1 participant
Problem: a collapsed shell row in the transcript named the wrong command.
timeout 120 ssh host uptimeshowedRun 120. The reader learned the timeout and lost the command.Fix: a collapsed bash row lists the commands a shell line runs, not their arguments. To do that it walks the words and skips the plumbing — redirections, environment assignments, flags, and wrappers such as
sudo,timeandtimeout. It skipped thetimeoutword but nottimeout's own duration, so the duration became the name. The scan now remembers which wrapper it skipped, and skips that wrapper's operands too:timeout 120,timeout 1.5s,timeout 30mtimeout -s KILL,sudo -u root,xargs -I {}The flag table is keyed by wrapper on purpose. The same letter means different things per binary:
nice -n 10takes a value, butsudo -ntakes none. One shared list would have eaten the command out ofsudo -n systemctl restart nginx. Two guard tests pin that behaviour.The same class of bug is fixed in two more places found while probing:
watch -n 2 git statusshowedRun 2, andnice -n 10 makeshowedRun 10.Fit: this is the summary layer for the collapsed one-liner, so every harness that reports a shell tool call (pi, codex, claude) gets the fix. Only
commandNamesinapp/lib/ui/session/tool_summary.dartchanges. The row widgets, the expanded body, the hover tooltip, the risk tinting, and the server protocol all stay the same — the verbatim command was always correct and is still one hover or one tap away.mockups/tool-one-liner.htmlcarries the reference implementation of the same rule ladder, so its JS and its §2 prose move in step with the Dart port.Testing:
app/test/tool_summary_test.dart, each written failing first: the positional duration, the separated flag value, and the valueless-flag guard. 56 tests in that file pass.app/test/tool_renderers_test.dartpasses, so theRunrow still renders unchanged.flutter analyzereports no issues.dart formatapplied.flutter testrun shows 11 pre-existingloading <file>flakes. A stashed baseline ofmainshows 13 of the same, so this branch makes nothing worse.Note
Low Risk
Display-only string parsing for collapsed shell row labels, with broad unit tests and no protocol or execution path changes.
Overview
Collapsed Run rows were labeling wrapper plumbing (durations, flag values) instead of the binary that actually ran—e.g.
timeout 120 ssh …showed 120 instead of ssh.commandNames/_segmentNamenow tracks the most recent shell wrapper and walks past its metadata:timeout’s numeric duration (including forms like.5s), per-wrapper separated flag values (timeout -s KILL,sudo -u,xargs -I), and valueless flags likesudo -nwithout eating the next word. Flags whose operand is a full command line (script -c,env -S) are re-scanned recursively; digit-only tokens stay as command names when the wrapper doesn’t take a numeric operand (sudo 123).Tests in
tool_summary_test.dartcover these cases;mockups/tool-one-liner.html§2 prose and reference JS stay aligned with the Dart port. Only the collapsed one-liner payload changes—verbatim commands in expand/tooltip are unchanged.Reviewed by Cursor Bugbot for commit dbb0a50. Bugbot is set up for automated code reviews on this repo. Configure here.
Note
Fix command name extraction for wrapped shell commands like
timeout,sudo, andscript -c_segmentNamein tool_summary.dart to correctly identify the real command inside wrapped shell rows by tracking wrapper context as it scans tokens.timeout -s KILL,sudo -u root,xargs -I {}) using a new_wrapperValueFlagsmap.timeout's numeric duration operand (e.g.timeout 30m) using a new_wrapperOperandregex, without consuming numeric tokens for other wrappers (e.g.sudo 123is preserved as the command).script -c 'make test',env -S 'python3 -m pip …') using a new_wrapperCommandFlagsmap and_commandFlagValuehelper.Macroscope summarized dbb0a50.
Summary by CodeRabbit
Bug Fixes
timeout,watch,nice,sudo,xargs, andenv.Tests