# Use Hagens with your agent.

[Hagens](https://hagens.com.br/) (`hagens.com.br`) registers 7 WebMCP tools. 4 of 7 tools declares `readOnlyHint`, so an agent can invoke them through `tools.call`. The registry runs the tool in a fresh headless page on hagens.com.br and returns untrusted site content.

This page mirrors the [WebMCP Registry](https://wmcp.ai/sites/hagens.com.br) listing for `hagens.com.br`, last live-checked by the registry at 2026-09-23T01:51:30.121Z. Run `ghostget webmcp sites.get --input '{"domain":"hagens.com.br"}' --json` for the current schema; the listing can drift between checks.

## Use Hagens 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":"hagens.com.br"}' --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":"hagens.com.br","tool":"fetch_article_markdown","input":"{}"}' --json
```

## Registered WebMCP tools

Hagens publishes 7 tools on hagens.com.br; 4 declare `readOnlyHint`.

| Tool | What it does | Callable through Ghostget |
| --- | --- | --- |
| `fetch_article_markdown` | Carrega o corpo de um artigo em markdown via GET /llms/artigo-{slug}.md. | Callable read-only tool |
| `fetch_articles` | Lista artigos publicados a partir de /llms.txt (titulo, slug, url, markdown). Equivale a fetch_blog_posts. | Callable read-only tool |
| `fetch_page_markdown` | Carrega o markdown público da página (GET /llms/{slug}.md). Sem page, usa a rota atual. Slugs: home, infobip, sobre, seo-geo, artigo-{slug}, etc. | Callable read-only tool |
| `fill_economia_lead` | Preenche o lead gate da calculadora de economia. Não envia — o usuário confirma. | Listed for discovery; the registry allows read-only calls only |
| `list_services` | Lista os serviços públicos da Hagens (título, slug e path). | Callable read-only tool |
| `start_contact` | Abre o formulário de contato no tipo pedido (cliente, trabalhe ou parcerias). Não envia dados. | Listed for discovery; the registry allows read-only calls only |
| `start_score_geo` | Informa a URL do site e avança para o lead gate. Não dispara a análise nem envia PII. | 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 Hagens changes its tools.
- **No account needed.** These calls are credential-free registry reads. For tools that need a session on hagens.com.br, browse the site itself or check back when the registry lists more tools.