Editor FS

Editor FS provides a deterministic interface to a virtual filesystem, enabling programmatic creation, inspection, and modification of files and folders in a sandboxed environment. It records metadata (modification timestamps, sizes, permissions) and supports encoding choices. Use cases include modeling complex project layouts, validating file trees for code generation, and simulating file operations for AI planning and testing.

Core logic and rules cover operations: create, read, write, delete, move, and rename, along with listing and path resolution. Inputs accept absolute or relative paths under a root directory, with validation to prevent traversal outside the root. Outputs return content strings for reads, directory listings, and operation statuses; sizes are computed in bytes. Optional features include version snapshots, import/export JSON representations, and batched operations.

Audience and value: developers, data engineers, QA teams, AI agents testing file workflows, and educators prototyping file trees. The tool reduces integration guesswork, accelerates automation scripts, improves reproducibility, and supports offline or isolated environments.

Assumptions & exclusions: no actual disk I/O unless wired to a backend; it focuses on domain logic, inputs, and outputs, excluding UI rendering or platform-specific file system calls.