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Extism Wasm Plugins

Category: Engineering  ·  Sub-category: engineering-misc  ·  Last updated:
Extism plugin system — multi-language WASM plugins (Rust/Go/JS/Python/C) with PDK, host functions, shared memory protocol. Build extensible agent tools where each plugin is an isolated WASM module. Sources: extism/extism (BSD-3-Clause).

About this skill (catalog notes)

Extism Wasm Plugins includes explicit scope boundaries (an explicit 'when not to use' or 'out of scope' section); 6 code blocks for direct copy-paste. The SKILL.md runs to about 640 words, in the catalog's typical mid-range.

Original author
phamlongh230-lgtm
Indexed lastmod
Catalog position
Engineering · engineering-misc
Indexed related skills
10

How Extism Wasm Plugins fits the catalog

Extism Wasm Plugins sits in the Engineering category under the engineering-misc sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

What this skill does

Extism Wasm Plugins is a community-contributed Claude Code skill in the engineering-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/extism-wasm-plugins/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Extism Wasm Plugins Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/extism-wasm-plugins
curl -L https://claudskills.com/skills/extism-wasm-plugins/SKILL.md \
  -o ~/.claude/skills/extism-wasm-plugins/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/extism-wasm-plugins/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/extism-wasm-plugins/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\extism-wasm-plugins\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

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See pricing → Download desktop app

Frequently asked questions

How do I install the Extism Wasm Plugins Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/extism-wasm-plugins/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Extism Wasm Plugins skill do?
Extism plugin system — multi-language WASM plugins (Rust/Go/JS/Python/C) with PDK, host functions, shared memory protocol. Build extensible agent tools where each plugin is an isolated WASM module. Sources: extism/extism (BSD-3-Clause).
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Extism Wasm Plugins skill?
Use Extism Wasm Plugins when your Claude Code task falls under the Engineering category — specifically in the engineering misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Extism Wasm Plugins" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Extism Wasm Plugins skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Extism Wasm Plugins is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
phamlongh230-lgtm. (2026). Extism Wasm Plugins [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/extism-wasm-plugins/
BibTeX
@misc{extism-wasm-plugins-2026,
  author    = {phamlongh230-lgtm},
  title     = {Extism Wasm Plugins [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/extism-wasm-plugins/}
}

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