Individual skill
bun-file-io
Use this when you are working on file operations like reading, writing, scanning, or deleting files. It summarizes the preferred file APIs and patterns used in this repo. It also notes when to use filesystem helpers for directories.
.openscience/skill/bun-file-io/SKILL.md
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- Observed behavior
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- Last checked
- Nov 2, 2026
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- Repository last updated
- Nov 6, 2026
- License
- Apache-2.0
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- agent Repository topic
- ai Repository topic
- bun Repository topic
- cli Repository topic
- llm Repository topic
- ml Repository topic
- open-source Repository topic
- research Repository topic
- science Repository topic
- ai-agent Repository topic
- operations Derived category
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## Use this when
- Editing file I/O or scans in `backend/cli` (the OpenScience CLI package)
- Handling directory operations or external tools
## Bun file APIs (from Bun docs)
- `Bun.file(path)` is lazy; call `text`, `json`, `stream`, `arrayBuffer`, `bytes`, `exists` to read.
- Metadata: `file.size`, `file.type`, `file.name`.
- `Bun.write(dest, input)` writes strings, buffers, Blobs, Responses, or files.
- `Bun.file(...).delete()` deletes a file.
- `file.writer()` returns a FileSink for incremental writes.
- `Bun.Glob` + `Array.fromAsync(glob.scan({ cwd, absolute, onlyFiles, dot }))` for scans.
- Use `Bun.which` to find a binary, then `Bun.spawn` to run it.