Plugin: trim shell launcher wrappers from command approvals

[huntharo]

Summary

Strips /bin/zsh -lc '...', bash -lc '...', and similar shell launcher wrappers from the Command block in approval prompts, matching the display behavior of Codex Desktop and CLI.

Why this matters

Command approval prompts currently show the full shell invocation:

/bin/zsh -lc 'git add README.md && git commit -m "docs: simplify README opening"'

The shell launcher is an implementation detail — users shouldn't need to read past it to understand what Codex is about to run. The expected display is:

git add README.md && git commit -m "docs: simplify README opening"

This matches upstream behavior documented in #9, which identifies strip_bash_lc_and_escape() in codex-rs/tui/src/exec_command.rs as the reference implementation.

Changes

• Added stripShellLauncher(command: string): string to src/pending-input.ts. Detects the pattern [/path/]shell -lc '...' using a single regex covering bash, zsh, sh, dash, ksh, tcsh, and fish with or without an absolute path prefix. Falls back to the raw command if no match.
• Applied stripShellLauncher() in buildPendingPromptText() (src/pending-input.ts:703) before passing to buildMarkdownCodeBlock. The raw command is unchanged for approval transport — only the display is simplified.
• Exported stripShellLauncher so it can be tested directly.

Testing

Added 7 test cases to src/pending-input.test.ts covering:

• /bin/zsh -lc '...'
• /bin/bash -lc '...'
• bash -lc '...'
• zsh -lc '...' with double-quoted inner content
• /usr/bin/zsh -lc '...'
• Plain commands that pass through unchanged (git status, npm install)

All 122 tests pass (pnpm typecheck + pnpm test).

Fixes #9

This contribution was developed with AI assistance (Claude Code).

[mvanhorn]

Summary

The regex handles the common launcher patterns correctly - greedy [\s\S]* with backreference matches the outermost quotes, and the fallback returns the raw command unchanged. Good call preserving the raw command for approval transport and only simplifying the display.

Recommendation

Looks good to merge.

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Review assisted by Claude Code