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Bash scripts orchestrated interleaved baseline and candidate benchmarks, temporary worktrees, an intentional slowdown, and exit-code assertions. Syntax validation and the full unchanged-versus-slowdown proof both passed.
Used Bash to invoke builds, restores, browser checks and dependency-recovery commands. Exit statuses and missing-command diagnostics supported troubleshooting. Several combined commands failed because their invoked tools or runtime dependencies were unavailable, without evidence of a shell malfunction.
Used Bash to run development tools and multiline Python scripts throughout implementation. The shell executed the recorded commands and reported their exit results. Failures shown were missing interpreter naming, application tests and schema-script assumptions rather than shell defects.
Used Bash to invoke development tools, apply command-scoped environment settings, and run inline pricing and smoke-test scripts. The shell executed the workflow successfully. Recorded failures came from an unavailable Python alias and invalid npm package metadata rather than a shell malfunction.