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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 v2.1.250 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

v2.1.161 system prompt

1 of 25 tool descriptions changed. Compared against v2.1.160.

Claude Code, interactive mode 27 model strings 25 tools captured Markdown

TaskOutput +1 −1 of 12 lines

This edit reached all 27 arms

from line 1 
 DEPRECATED: Background tasks return their output file path in the tool result, and you receive a <task-notification> with the same path when the task completes.
 - For bash tasks: prefer using the Read tool on that output file path — it contains stdout/stderr.
-- For local_agent tasks: use the Agent tool result directly. Do NOT Read the .output file — it is a symlink to the full sub-agent conversation transcript (JSONL) and will overflow your context window.
+- For local_agent tasks: use the Agent tool result directly. Do NOT Read the .output file — it is a symlink to the full subagent conversation transcript (JSONL) and will overflow your context window.
 - For remote_agent tasks: prefer using the Read tool on the output file path — it contains the streamed remote session output (same as bash).
 
 - Retrieves output from a running or completed task (background shell, agent, or remote session)

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Read the whole system prompt → All 25 tool descriptions →