Open-Source Skillware Makes Agent Skills Portable

Tired of rebuilding the same agent skill from prompts and tool schemas every time you change stacks? Skillware is an open-source Python framework and registry that packages one capability into a single skill bundle. Build it once, carry it to your next host.

That bundle is the whole point. The contract, the executable code, the host instructions, the tests and the tool schema sit together instead of scattered across your project, so nothing gets left behind when you move.

What Happened

• Skill bundles are self-contained, so a capability travels with its safety boundaries and typed I/O.
• Executable Python effects let agents run defined work instead of only describing it.
• Cross-host adapters cover Gemini, Claude, OpenAI, Ollama and other OpenAI-compatible hosts.
• The registry and CLI install once, then commands such as skillware list show you the bundled skills.
• Registry skills include assurance tests, offline tests that check an Effect honors its Contract.

Why It Matters

If you build agents, the rewrite is the tax you pay every time you swap hosts. Skillware aims to make that a copy, not a rebuild, and the typed I/O and safety boundaries come along with it. The assurance tests are the quiet win: they run offline, so a broken effect can fail on your machine before it ever reaches a live agent.

It is a Python framework, so you will want to be comfortable with Python to get the most out of it.