# Use PromptLens with your agent.

[PromptLens](https://promptlens.io/) (`promptlens.io`) registers 8 WebMCP tools. 5 of 8 tools declares `readOnlyHint`, so an agent can invoke them through `tools.call`. The registry runs the tool in a fresh headless page on promptlens.io and returns untrusted site content.

This page mirrors the [WebMCP Registry](https://wmcp.ai/sites/promptlens.io) listing for `promptlens.io`, last live-checked by the registry at 2026-09-23T04:04:03.207Z. Run `ghostget webmcp sites.get --input '{"domain":"promptlens.io"}' --json` for the current schema; the listing can drift between checks.

## Use PromptLens 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":"promptlens.io"}' --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":"promptlens.io","tool":"get_integration_options","input":"{}"}' --json
```

## Registered WebMCP tools

PromptLens publishes 8 tools on promptlens.io; 5 declare `readOnlyHint`.

| Tool | What it does | Callable through Ghostget |
| --- | --- | --- |
| `get_integration_options` | Find PromptLens API, CLI, and hosted MCP documentation and their authentication requirements. Returns public setup guidance only; does not connect an account, retrieve private prompts, or execute management operations. | Callable read-only tool |
| `get_page_content` | Read the current public page's visible article or main content, headings, and navigable public links. Use this after navigate_public_page to read product guides, pricing, API/CLI/MCP setup, templates, comparisons, and policies. Text is pagi | Callable read-only tool |
| `get_pricing` | Compare PromptLens Free, Pro, and Teams pricing in USD, including organization member limits, prompt limits, evaluation allowances, and model access. Returns public plan information; does not access billing or start a purchase. | Callable read-only tool |
| `get_product_details` | Get PromptLens product descriptions and public page links to learn how Prompts and Evaluations help teams version prompts and test changes before publishing. Includes the development status of Observability. | Callable read-only tool |
| `navigate_public_page` | Navigate the visible browser to a public PromptLens page. Accepts links from the information tools, get_page_content or search_documentation, plus /, /pricing, /docs and other public index pages. Canonical PromptLens links open on the curre | Listed for discovery; the registry allows read-only calls only |
| `search_documentation` | Search PromptLens's public documentation by keywords, including prompt retrieval, evaluations, authentication, API operations, CLI commands, and hosted MCP setup. Returns up to limit matching pages or passages with URLs and a has_more flag. | Callable read-only tool |
| `show_page_section` | Bring a section of the current public page into view and move keyboard focus to its heading. Use an exact nonempty heading id from get_page_content. Useful for showing pricing comparisons, installation steps, or policy sections to the user. | Listed for discovery; the registry allows read-only calls only |
| `start_signup` | Open PromptLens's signup screen when the user wants to start using the product. Changes the visible page only; does not create an account, select a plan, accept terms, or purchase anything. The user completes authentication and workspace se | 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 PromptLens changes its tools.
- **No account needed.** These calls are credential-free registry reads. For tools that need a session on promptlens.io, browse the site itself or check back when the registry lists more tools.