# Introduction
`mind` is a manager for agent tooling: skills, agents, rules, and tools. It melds
arbitrary git repos and links the items they offer into one or more agent homes
(default `~/.claude`).
- A *source* is a melded git repo (`mind meld`). It offers *items*: skills,
agents, rules, and tools, found by convention or declared in a `mind.toml`.
- `mind learn <item>` copies an item into the *store* (`~/.mind/store`) and
symlinks it into each *lobe* (agent home). A *tool* is the exception: store-only
helper tooling reached by reference, not linked into a lobe by default. Lobes can
be non-Claude homes (Gemini CLI, Codex CLI, Antigravity) with a per-kind filter
so only the compatible item types link in; see
[Configuration](configuration.md#cross-harness-lobes).
- `mind recall` and `mind probe` inspect what is installed and what is available;
`mind sync` and `mind upgrade` keep sources and installed items current.
- For authoring, `mind init-source` and `mind review` scaffold and validate a
source for publishing.
This site is the reference for installing, using, and authoring `mind`. Start
with [Install](install.md) and the [Quickstart](quickstart.md); [Commands](commands.md)
is the full verb reference. For authoring a source, see [Source layout](source-layout.md)
and [Authoring a source](authoring.md). The normative behavior is the
[spec](https://github.com/jaemk/mind/tree/main/spec).