femto/worldbook-webmcp
skills/worldbook-webmcp/SKILL.md
Discover and use Worldbook WebMCP browser-page tools from a current page URL. Use when an agent needs site-specific browser automation tools without relying on mcp-chrome.
tools
Updated May 12, 2026
$ install --global
skillsauthnpx skillsauth add femto/skills worldbook-webmcpInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: May 12, 2026, 3:03 AM129.5s1 file scanned
SKILL.md
- name:
- worldbook-webmcp
- description:
- Discover and use Worldbook WebMCP browser-page tools from a current page URL. Use when an agent needs site-specific browser automation tools without relying on mcp-chrome.
Worldbook WebMCP
Use this skill when a task needs site-specific tools for the current browser page.
Discover Tools
Run:
worldbook --json webmcp get "<current-page-url>"
This calls:
GET /api/webmcp/match?url=<current-page-url>
If the response is null, no WebMCP tools are available for that URL.
Response Shape
When a site matches, the response contains:
site_nameurl_patterntools
Each tool contains:
namedescriptioninputSchemahandler
Execute Tools
The handler field is JavaScript function source. Execute it in the matched browser page context:
const handler = eval(`(${tool.handler})`);
const result = await handler(params);
Return the JSON-serializable result to the user.
Rules
- Use the existing
/api/webmcp/matchendpoint; do not invent another discovery endpoint. - Treat
inputSchemaas the source of truth for tool parameters. - Run the handler only in the browser page that matched the URL pattern.
- If the handler navigates the page or returns a Promise, wait for completion before reporting the result.
- If no tool matches, continue with the agent's normal browser automation workflow.
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