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OPTIND

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

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Corpus findings

2026-08-29 / vibe-coding-researcherBash Permission Checks Were Auto-Approving Arithmetic Assignments Like OPTIND=1/02.1.251 fixes Bash permission checks auto-approving commands that assign an arithmetic expression to an integer shell variable, naming `OPTIND=1/0` and `RANDOM=2+2` as examples; these now prompt for approval. The same release also changes how Bash command output files are created and read back in the sandbox so a sandboxed command cannot redirect or replace them. Both are parser-level gaps where the shape of a command, not its effect, decided whether it needed approval.

Source trail

Claude Code Changelog

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