PreClick — An MCP-native URL preflight scanning service for autonomous agents.
Server Details
PreClick scans links for threats and confirms intent match with high accuracy before agents click.
- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP
- URL
- Repository
- cybrlab-ai/preclick-mcp
- GitHub Stars
- 6
- Server Listing
- PreClick MCP Server
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Tool Definition Quality
Average 4.3/5 across 6 of 6 tools scored.
The tools have clear distinctions between synchronous and asynchronous operations, but there is significant overlap: url_scanner_scan and url_scanner_scan_with_intent are nearly identical except for intent handling, and the async tools follow a similar pattern. This creates ambiguity about which to use in different scenarios, though descriptions help clarify.
All tool names follow a consistent snake_case pattern with a clear prefix (url_scanner_) and descriptive suffixes (e.g., _async_scan, _async_task_result). The naming is highly predictable and uniform across all six tools, making it easy to understand their relationships.
With 6 tools, the count is reasonable for a URL scanning service, covering both synchronous and asynchronous workflows. It might be slightly over-scoped due to the duplication between sync and async versions, but each tool serves a distinct operational purpose in the set.
The tool set provides complete coverage for URL scanning: it supports both synchronous and asynchronous scanning, with and without intent, plus status checking and result retrieval. There are no obvious gaps; agents can handle all expected workflows from submission to result retrieval.
Available Tools
6 toolsurl_scanner_async_scanRead-onlyInspect
Submit a URL for asynchronous security analysis. Returns immediately with a task_id. Poll with url_scanner_async_task_status to check progress, then url_scanner_async_task_result to get the scan result. Async counterpart of url_scanner_scan for clients without native MCP Tasks support.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed. |
url_scanner_async_scan_with_intentRead-onlyInspect
Submit a URL with optional user intent for asynchronous security analysis. Returns immediately with a task_id. Poll with url_scanner_async_task_status to check progress, then url_scanner_async_task_result to get the scan result. Async counterpart of url_scanner_scan_with_intent for clients without native MCP Tasks support.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed. | |
| intent | No | Optional user intent for visiting the URL. Recommended for additional context. |
url_scanner_async_task_resultRead-onlyInspect
Retrieve the result of an asynchronous scan task. If completed, returns the full scan result (risk_score, confidence, agent_access_directive, etc.). If still running, returns status with retry_after_ms — call again after that interval. Non-blocking.
| Name | Required | Description | Default |
|---|---|---|---|
| task_id | Yes | The task ID to retrieve the result for. |
url_scanner_async_task_statusRead-onlyInspect
Check the status of an asynchronous scan task. Returns the current task status using native MCP task semantics (working, completed, failed, cancelled) without blocking. Use url_scanner_async_task_result to retrieve the result once completed.
| Name | Required | Description | Default |
|---|---|---|---|
| task_id | Yes | The task ID to check status for. |
url_scanner_scanRead-onlyInspect
Analyze a URL for security threats (synchronous, blocks until complete or timeout). Returns risk score, confidence, agent access guidance, and intent_alignment (always not_provided for this tool; use url_scanner_scan_with_intent for intent context). For long-running scans, prefer url_scanner_async_scan which returns immediately with a task_id for polling via url_scanner_async_task_result.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed. |
url_scanner_scan_with_intentRead-onlyInspect
Analyze a URL for security threats with optional user intent context (synchronous, blocks until complete or timeout). Returns risk score, confidence, agent access guidance, and intent_alignment. For long-running scans, prefer url_scanner_async_scan_with_intent which returns immediately with a task_id for polling via url_scanner_async_task_result.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed. | |
| intent | No | Optional user intent for visiting the URL. Recommended for additional context. |
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