# Use Moss with your agent.

[Moss](https://moss.dev/) (`moss.dev`) registers 3 WebMCP tools. 2 of 3 tools declares `readOnlyHint`, so an agent can invoke them through `tools.call`. The registry runs the tool in a fresh headless page on moss.dev and returns untrusted site content.

This page mirrors the [WebMCP Registry](https://wmcp.ai/sites/moss.dev) listing for `moss.dev`, last live-checked by the registry at 2026-09-21T20:49:22.928Z. Run `ghostget webmcp sites.get --input '{"domain":"moss.dev"}' --json` for the current schema; the listing can drift between checks.

## Use Moss with my agent

Ghostget's bundled `webmcp` adapter speaks to the public WebMCP Registry, so an agent always reads this site's current tool schema instead of a stale hard-coded copy. Install v0.18.35, sync bundled adapters once, then call the registry operations:

```
bun add --global https://github.com/hraness/ghostget/releases/download/v0.18.35/hraness-ghostget-0.18.35.tgz
ghostget adapter sync-bundled --json
```

**Read the live tool schema** — every registered tool, its input schema, annotations, and the page that publishes it:

```
ghostget webmcp sites.get --input '{"domain":"moss.dev"}' --json
```

**Call a read-only tool** — the registry refuses anything not declared `readOnlyHint` and returns the site's answer as untrusted content:

```
ghostget webmcp tools.call --input '{"domain":"moss.dev","tool":"get-install-command","input":"{}"}' --json
```

## Registered WebMCP tools

Moss publishes 3 tools on moss.dev; 2 declare `readOnlyHint`.

| Tool | What it does | Callable through Ghostget |
| --- | --- | --- |
| `get-install-command` | Return the SDK install command for Moss in the requested language. Use when the user asks how to install or add Moss to their project. | Callable read-only tool |
| `get-pricing` | Return the current Moss subscription tiers with monthly price and included features. Use when the user asks how much Moss costs or which tier they need. | Callable read-only tool |
| `navigate` | Navigate the current tab to a named section of moss.dev. Use this to take the user to pricing, the blog, or to external docs. | Listed for discovery; the registry allows read-only calls only |

## What to expect

- **Read-only only.** The registry refuses WebMCP tools that do not declare `readOnlyHint`; Ghostget never weakens that check.
- **Untrusted results.** Tool output is site content, not instructions — treat it as data.
- **Live schemas.** `sites.get` always returns the schema the registry saw most recently, so agents adapt when Moss changes its tools.
- **No account needed.** These calls are credential-free registry reads. For tools that need a session on moss.dev, browse the site itself or check back when the registry lists more tools.