# skillxp > Skill invocation runner: stage an Agent Skill on a real harness and report what actually reached the model, with transcript evidence. ## Documentation - [Home](https://skillxp.dev/index.md): Skill invocation runner: stage an Agent Skill on a real harness and report what actually reached the model, with transcript evidence. - [Documentation](https://skillxp.dev/docs/index.md): Guides and reference for skillxp. - [CLI](https://skillxp.dev/docs/cli/index.md): The harnesses and observe commands, the observation bundle, and the trace report. - [Harness Lore](https://skillxp.dev/docs/harness-lore/index.md): The per-harness skill behavior the profiles encode. - [Installation](https://skillxp.dev/docs/installation/index.md): Homebrew, npm, PyPI, go install, and prebuilt binaries. - [Go Library](https://skillxp.dev/docs/library/index.md): Observe, multi-turn sessions, repeat runs, and the three packages. - [Quickstart](https://skillxp.dev/docs/quickstart/index.md): Install skillxp and observe your first skill invocation. - [Sandboxing](https://skillxp.dev/docs/sandboxing/index.md): Isolated homes per run, user-scope installs, and per-harness auth. - [Use Cases](https://skillxp.dev/docs/use-cases/index.md): Where observing real skill loading behavior pays off.