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https://github.com/langchain-ai/deepagentsjs.git
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Hunter Lovell
dd142fe4fc
## Summary `write_file` now creates missing files and replaces existing files entirely, removing the previous create-only error path while preserving write permissions and symlink protections. ## Changes ### deepagents filesystem backends - Updated `FilesystemBackend`, `StateBackend`, `StoreBackend`, `BaseSandbox`, and `node-vfs` write behavior to allow full-file replacement on existing paths. - Preserved path safety and symlink protections in filesystem-backed writes. - Removed the sandbox existence precheck so writes rely on the upload/write transport. ### Tool prompts and examples - Aligned the `write_file` tool description and schema text with the Python SDK wording. - Updated sandbox example prompts so `write_file` is described as creating or fully replacing files. ### Tests and evals - Updated backend, middleware, and shared sandbox standard tests that previously expected an existing-file error. - Added overwrite coverage for filesystem, sandbox, state, store, middleware, node-vfs, and file-operation evals. ### Release - Added a changeset for `deepagents` documenting the new overwrite behavior.