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## Summary - **`seq inf` / `seq nan` / `seq -inf` hang**: `std.fmt.parseFloat` accepts non-finite float values like `inf`, `nan`, `-inf`, but the loop `while (current <= this._end)` never terminates when `_end` is infinity. Now rejects non-finite values after parsing. - **`[[ -d "" ]]` out-of-bounds panic**: Empty string expansion produces no args in the args list, but `doStat()` unconditionally accesses `args.items[0]`. Now checks `args.items.len == 0` before calling `doStat()` and returns exit code 1 (path doesn't exist). ## Test plan - [x] `seq inf`, `seq nan`, `seq -inf` return exit code 1 with "invalid argument" instead of hanging - [x] `[[ -d "" ]]` and `[[ -f "" ]]` return exit code 1 instead of panicking - [x] `seq 3` still works normally (produces 1, 2, 3) - [x] `[[ -d /tmp ]]`, `[[ -f /etc/hostname ]]` still work correctly - [x] Tests pass with `bun bd test`, seq tests fail with `USE_SYSTEM_BUN=1` 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>