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Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.251 Feeds RSS JSON llms.txt
Reading a new release v2.1.251 Analysing changes · 2/5 Ordering the sections · 3/4 steps 470 findings $18.91 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

Prompt capture

Edit tool description

10 model strings share this prompt, byte for byte.

v2.1.242 5 lines 360 chars sha256 2eaaa8e08e0b Plain text Whole capture

1Performs exact string replacement in a file.
3- You must Read the file in this conversation before editing, or the call will fail.
4- `old_string` must match the file exactly, including indentation, and be unique — the edit fails otherwise. Strip the Read line prefix (line number + tab) before matching.
5- `replace_all: true` replaces every occurrence instead.