openskills-plugin-separation

openskills-plugin-separation is a skill for Claude Code, Codex, Cursor from Geeksfino/openskills. It costs 34 tokens per session (280 once invoked), scanned A, original, Apache-2.0.

A project-development guide for keeping the core OpenSkills runtime separate from optional WebAssembly build plugins. WebAssembly, or WASM, is a format for running compiled code in supported environments.

In plain words
What is it for?
Use it when changing plugin features, build wiring, dependency features, runtime exports, or CLI build commands.
Why use it?
It prevents build-only dependencies from being required by normal runtime users or language bindings. It also sets checks for default builds, bindings, and runtime tests.

Skill for Claude CodeCodexCursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/geeksfino/openskills/openskills-plugin-separation
Any agent
npx skills add Geeksfino/openskills --skill openskills-plugin-separation
Clone the repo
git clone --depth 1 https://github.com/Geeksfino/openskills

Made for: Claude Code, Codex, Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for openskills-plugin-separation

README.md
[![agentmods](https://agentmods.dev/badge/skills/geeksfino/openskills/openskills-plugin-separation.svg)](https://agentmods.dev/skills/geeksfino/openskills/openskills-plugin-separation)
Your own site
<a href="https://agentmods.dev/skills/geeksfino/openskills/openskills-plugin-separation"><img src="https://agentmods.dev/badge/skills/geeksfino/openskills/openskills-plugin-separation.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 280 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00034 $0.00280
Opus 5 $0.00017 $0.00140
Sonnet 5 $0.00007 $0.00056
Haiku 4.5 $0.00003 $0.00028

Measured 5d ago against content hash 00decd773d66, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openskills-plugin-separation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/skills/openskills-plugin-separation/SKILL.md · 43 lines

What it actually says

OpenSkills Plugin Separation

Use this skill when changing plugin features, build-tool wiring, or runtime dependency topology.

Objective

Keep core runtime usable without plugin toolchains, especially for bindings and non-build execution paths.

Key Files

  • runtime/Cargo.toml
  • runtime/src/lib.rs
  • runtime/src/bin/openskills-runtime.rs
  • runtime/src/build/**
  • bindings/ts/Cargo.toml
  • bindings/python/Cargo.toml

Separation Rules

  1. Build plugins must be gated behind explicit features.
  2. Core runtime defaults should not force plugin toolchains.
  3. Bindings should opt out of plugin-heavy default features when appropriate.
  4. Public exports for build functions must be feature-gated.
  5. CLI build commands must degrade gracefully when build features are disabled.

Validation Checklist

  • cargo check -p openskills-runtime passes with default features.
  • Bindings compile without pulling plugin-specific dependencies unintentionally.
  • Runtime tests that do not require plugin build paths continue to pass.

Output Format

  • Feature graph summary
  • Leakage findings (if any)
  • Minimal patch plan
  • Post-change verification commands
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 43 lines · 34 tokens per session scan A 00decd773d66

Subscribe to this mod's changes

openskills-plugin-separation is a skill published in the GitHub repository Geeksfino/openskills (71 stars, last pushed 7d ago), licensed Apache-2.0. It adds 34 tokens to every session and 280 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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