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A Claude Code engineer floated killing plan mode on X and drew 3,122 replies and 1.6 million views. We ran plan mode in a scratch repo: it blocked a file write and let a sqlite DELETE straight through.
A Rust document converter went from empty repo to 20,288 stars in 32 days and 745,467 npm installs. We converted six formats with it and clocked a 2.90 ms docx against LibreOffice's 1,324 ms, then found where the 5 ms claim falls apart.
We denied reads of one file and calls to curl, then tried eight ways around it. Six were blocked, including cat, sed and a chained command. The two that were not still stopped and asked.
Herdr is not a terminal, it is a multiplexer that runs inside one. Across 181 runs it consumed 4.4MB of output in 0.059s, faster than the Ghostty window hosting it.
A published inventory of ChatGPT Work lists 232 tool interfaces, 44 skills and 615,000 characters of skill source. Its browser skill deliberately withholds its own instructions, and the reason is arithmetic.