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Sweep 28 Aug 2026 · 16:06Z Build v2.1.251 479 read Stable v2.1.236 Latest v2.1.250 Next v2.1.251 Feeds RSS JSON llms.txt

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

Write tool description

17 model strings share this prompt, byte for byte.

v2.1.223 8 lines 618 chars sha256 70103362310e Plain text Whole capture

1Writes a file to the local filesystem.
3Usage:
4- This tool will overwrite the existing file if there is one at the provided path.
5- If this is an existing file, you MUST use the Read tool first to read the file's contents. This tool will fail if you did not read the file first.
6- Prefer the Edit tool for modifying existing files — it only sends the diff. Only use this tool to create new files or for complete rewrites.
7- NEVER create documentation files (*.md) or README files unless explicitly requested by the User.
8- Only use emojis if the user explicitly requests it. Avoid writing emojis to files unless asked.