Source Intelligence
Sweep 28 Aug 2026 ยท 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 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

v2.1.0 system prompt

First capture in the ledger, so there is nothing to compare it against yet.

Agent SDK, print mode 27 model strings 17 tools released captured Markdown

This is the oldest capture in the ledger, so there is no earlier version of these prompts to diff it against. The documents themselves are linked below.

The full text

The whole documents, one page each, exactly as they were sent.