Unclear It is not clear whether these tools are available by default.
What
Claude Code can save documents to a memory store, a place where notes are kept between sessions, and Claude can write project documents with the project_write tool. A session is one run of Claude Code from start to finish. Writes in both cases now need an if_version value:
- For a new document, the value is the word
new. - For an existing document, it is the version given when the document was last read.
If the document has changed since then, the write is refused. Deleting and updating in another store also need this value.
Why
Claude now has to read a document before overwriting it. Two writers can no longer quietly overwrite each other's changes: the second write is refused instead.
Names in the bundleif_versionproject_write
Documented inclaude-code/agent-sdk/typescript
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
It is not clear whether these tools are available by default.