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https://github.com/langchain-ai/deepagentsjs.git
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Hunter Lovell
ba8d4aa716
## Summary This adds a destructive `delete` filesystem tool backed by the core backend protocol, with recursive deletion for files/directories and write-permission enforcement over the whole target subtree. ## Changes ### Core filesystem backends - Added `DeleteResult` and optional `delete(filePath)` support to the backend protocol and adapters. - Implemented recursive delete behavior for state, store, filesystem, sandbox, context-hub, and composite backends. - Preserved filesystem path containment and symlink safety: filesystem deletes remove symlinks as links and do not follow them. - Converts unsupported routed deletes in `CompositeBackend` into normal backend errors. ### Filesystem middleware - Added the final `delete` tool name with recursive file/directory semantics. - Treats `delete` as a write operation for filesystem permissions. - Refuses recursive deletes if any deny-write permission pattern overlaps the target subtree, without enumerating filesystem contents first. - Filters the `delete` tool out when the resolved backend does not support deletion. ### Tests, evals, and prompts - Added backend and middleware coverage for recursive deletes, missing paths, symlink safety, unsupported backends, and permission denial. - Added file-operation eval coverage for deleting a file and deleting a directory recursively. - Updated core filesystem prompts and sandbox examples to document the new `delete` tool.