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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 22 Oct 2026
One change · claude-code

Rewind file changes with checkpointing changedagent-sdk/file-checkpointing

Nearest release: v2.1.309, published 2 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 22 Oct 2026 22:51 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 22 Oct 2026 23:07 UTC.

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77> [!WARNING]
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9> Only changes made through the Write, Edit, and NotebookEdit tools are tracked. Changes made through Bash commands (like `echo > file.txt` or `sed -i`) are not captured by the checkpoint system, and neither are edits a [subagent](/docs/en/agent-sdk/subagents.md) applies, except a [skill with `context: fork`](/docs/en/skills#run-skills-in-a-subagent) that runs in the foreground.
9> `rewindFiles()` doesn't undo what `sed -i` or another Bash command did to a file, unless a tool such as Write or Edit had modified that file in the main conversation. [Subagent](/docs/en/agent-sdk/subagents.md) edits aren't tracked, while edits from a [skill with `context: fork`](/docs/en/skills#run-skills-in-a-subagent) running in the foreground are.
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1111## How checkpointing works
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602602| Limitation | Description |
603603| - | - |
604| Write/Edit/NotebookEdit tools only | Changes made through Bash commands are not tracked |
604| Bash command changes | Rewinding doesn't undo changes a Bash command made, except in files the main conversation had already edited with a tool such as Write or Edit |
605605| Subagent edits | Edits a [subagent](/docs/en/agent-sdk/subagents.md) applies aren't tracked, except a skill with `context: fork` running in the foreground. A rewind reverts them only in files the main conversation had already edited; use git to revert the rest |
606606| Same session | Checkpoints are tied to the session that created them |
607607| File content only | Creating, moving, or deleting directories is not undone by rewinding |
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