Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
One change · claude-code

Tools reference changed

tools-reference

Nearest release: v2.1.277, published under an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

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First seen 14 Aug 2026 this site's first read of the page
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159159Claude Code streams a command's output to a working file as the command runs; a command whose output passes 5 GB is killed. When the command finishes, Claude Code reads the output back from that file, up to the read-back window described below. How much of the output reaches Claude inline depends on whether Claude Code treats the result as a failure:
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161| Result | What Claude gets |
162| :------ | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
163| Valid | Inline up to roughly 30,000 characters by default; past that, the path of a file saved to the session directory and truncated past 64 MiB, plus a short preview from the start, and Claude reads or searches the file when it needs the rest |
164| Failure | Inline up to roughly 10,000 characters; past that, a head-and-tail excerpt of that size cut from the read-back window, with no file path |
161| Result | What Claude gets |
162| :------ | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
163| Valid | Inline up to roughly 30,000 characters by default; past that, the path of a file saved to the session directory and truncated past 64 MiB, plus a preview of up to the first 2,000 characters, and Claude reads or searches the file when it needs the rest |
164| Failure | Inline up to roughly 10,000 characters; past that, a head-and-tail excerpt of that size cut from the read-back window, with no file path |
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166166A command that exits 1 counts as a valid result for the Bash tool only when Claude Code recognizes exit code 1 as a benign outcome for that command: `grep`, `rg`, `egrep`, `fgrep`, `find`, `diff`, `test`, and `[`, plus `git diff` and `git grep`. Every other command that exits 1 counts as a failure, even when exit 1 is a benign informational outcome: no matches for `pgrep` and `jq -e`, files that differ for `cmp`.
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