majiayu000/claude-arsenal
xiaohongshu
xiaohongshu
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MoonBit WASIp1 Tools
mbt-wasip1-tools
Build small MoonBit WASIp1 CLI tools using the peter-jerry-ye/wasi library, focused on simple read/write tasks (echo, cat, wc, simple file ops). Use when creating or updating CLI examples, scripts, or skills for this repo.
SKILL.md
Full skill instructions
MoonBit WASIp1 Tools
Use the examples
- Copy a project from
assets/and modify it. - Each example is a complete MoonBit project with a README.
- Build with
moon build -C <example-dir>and run withwasmtime run --dir host::guest <wasm>.
Path resolution (WASIp1)
- There is no cwd. All paths resolve against preopened directories.
- Resolution uses longest-prefix matching on preopen names.
- Relative paths must match a preopen prefix (for example,
foo/barrequires a preopen namedfoo). - Absolute paths only work when a preopen name starts with
/(for example,--dir /host::/). - If no prefix matches, fail immediately. Do not fall back to trial-and-error.
Unified stdio
@wasi/stdio.stdinimplements@sync_io.Readerand@io.Reader.@wasi/stdio.stdoutand@wasi/stdio.stderrimplement@sync_io.Writerand@io.Writer.
References
references/api.mdsummarizes the core I/O and fs APIs.
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