Claude-skill-registry-data 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.

install

source · Clone the upstream repo

git clone https://github.com/majiayu000/claude-skill-registry-data

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry-data "$T" && mkdir -p ~/.claude/skills && cp -r "$T/data/mbt-wasip1-tools" ~/.claude/skills/majiayu000-claude-skill-registry-data-mbt-wasip1-tools && rm -rf "$T"

manifest: data/mbt-wasip1-tools/SKILL.md

source content

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 with

wasmtime 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/bar
```
requires a preopen named
```
foo
```
).
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.stdin

implements

@sync_io.Reader

and

@io.Reader

@wasi/stdio.stdout

and

@wasi/stdio.stderr

implement

@sync_io.Writer

and

@io.Writer

References

```
references/api.md
```
summarizes the core I/O and fs APIs.