Trust score
60/100
MarketNow Registry / Browser Automation / mcp-app-debug
mcp-app-debug
Debug both ends of MCP Apps — render your server's app in a Playwright browser with 7 automated diagnostics (npx mcp-app-debug <server-url>), or grade a HOST's MCP Apps conformance with a probe fixtur
Browser Automation
v0.7.0
by GitHub Actions
Install risk
Runs registry code
Downloads / week
510
Source
npm-registry
Indexed
2026-09-10
Install
$ npx -y mcp-app-debugInstalling via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
Adoption evidence: 510 weekly registry downloads.
How MarketNow scored this
Sentinel Index Heuristics — a security-first estimate from public signals:
- Package age and release activity (stale repositories lose points)
- Verified adoption: registry downloads or GitHub stars, not follower counts
- Typosquat distance against the 150 most-installed MCP packages
- Injection markers scanned in the package description
Heuristic, not a guarantee. For verified agent credentials and revocation, see the MarketNow Trust API.
What is mcp-app-debug?
Debug both ends of MCP Apps — render your server's app in a Playwright browser with 7 automated diagnostics (npx mcp-app-debug <server-url>), or grade a HOST's MCP Apps conformance with a probe fixtur Indexed by MarketNow with trust 60/100 (Runs registry code).
How do I install it?
Run $ npx -y mcp-app-debug Installing via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
What does the trust score mean?
Security-first heuristic over public signals (age, adoption, typosquat distance, injection markers). It is not a popularity ranking and not a guarantee of safety. mcp-app-debug scores 60/100.