# Use skillbay with your agent.

[skillbay](https://skillbay.sh/) (`skillbay.sh`) registers 4 WebMCP tools. 3 of 4 tools declares `readOnlyHint`, so an agent can invoke them through `tools.call`. The registry runs the tool in a fresh headless page on skillbay.sh and returns untrusted site content.

This page mirrors the [WebMCP Registry](https://wmcp.ai/sites/skillbay.sh) listing for `skillbay.sh`, last live-checked by the registry at 2026-09-23T00:02:45.907Z. Run `ghostget webmcp sites.get --input '{"domain":"skillbay.sh"}' --json` for the current schema; the listing can drift between checks.

## Use skillbay 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":"skillbay.sh"}' --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":"skillbay.sh","tool":"skillbay_get_skill","input":"{}"}' --json
```

## Registered WebMCP tools

skillbay publishes 4 tools on skillbay.sh; 3 declare `readOnlyHint`.

| Tool | What it does | Callable through Ghostget |
| --- | --- | --- |
| `skillbay_get_skill` | Get one skill by slug: description, price, seller, before-and-after examples, file list, and SKILL.md. | Callable read-only tool |
| `skillbay_list_categories` | List skill categories (slug and name). | Callable read-only tool |
| `skillbay_open_skill` | Navigate this tab to a skill page by slug. | Listed for discovery; the registry allows read-only calls only |
| `skillbay_search_skills` | Search skillbay for AI agent skills by words, optionally filtered by category slug or free only. Returns skills with slug, title, summary, price in cents, seller, and url. | Callable read-only tool |

## 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 skillbay changes its tools.
- **No account needed.** These calls are credential-free registry reads. For tools that need a session on skillbay.sh, browse the site itself or check back when the registry lists more tools.