building-mcp-server-on-cloudflare
No security findings. Scanned 1 time, most recently 2026-02-07.
Second scanner: NVIDIA SkillSpector
The two scanners disagree: Cisco found nothing and SkillSpector says do not install. One of them has a blind spot here; read the skill before trusting either. How the two scanners compare across the whole corpus: Two scanners, one corpus.
What this skill does
Builds remote MCP (Model Context Protocol) servers on Cloudflare Workers with tools, OAuth authentication, and production deployment. Generates server code, configures auth providers, and deploys to Workers. Use when: user wants to "build MCP server", "create MCP tools", "remote MCP", "deploy MCP", add "OAuth to MCP", or mentions Model Context Protocol on Cloudflare. Also triggers on "MCP authentication" or "MCP deployment".
- Package
- 4 files, 24 KB
- SKILL.md
- 700 words, 12+ sections
- Code
- None. Instructions only.
SKILL.md covers: Building MCP Servers on Cloudflare · When to Use · Prerequisites · Quick Start · Option 1: Public Server (No Auth) · Option 2: Authenticated Server (OAuth) · Core Workflow · Step 1: Define Tools · Step 2: Configure Entry Point · Step 3: Test Locally · Start server · In another terminal, test with MCP Inspector
Findings
No findings. SAFE
What is in the package
| File | Kind | Size |
|---|---|---|
SKILL.md | doc | 6.0 KB |
references/examples.md | doc | 2.1 KB |
references/oauth-setup.md | doc | 9.9 KB |
references/troubleshooting.md | doc | 6.0 KB |
External hosts referenced
my-server.workers.dev modelcontextprotocol.io api.weather.com my-mcp-server.my-account.workers.dev my-mcp.workers.dev www.rfc-editor.org your-worker.workers.dev
Hostnames that appear in the skill's files. Referencing a host is not a finding; compare against the findings above and the skill's stated purpose.
Environment variables referenced
AUTH0_DOMAIN GITHUB_CLIENT_ID GITHUB_CLIENT_SECRET
Package contents recorded 2026-10-22 at commit 75a603ba7551. The scan above ran against the version current at scan time; the two can differ if the skill has since been updated.
What we checked
- Static analyzer. Pattern rules over SKILL.md and bundled files: known-bad commands, exfiltration URLs, secrets, obfuscation.
- Llm analyzer. A language model reads the skill and reports intent-level issues the rules cannot express.
- Meta analyzer. A second model pass that validates, deduplicates and re-scores the other analyzers' findings.
What we did not check
- Runtime behaviour. The skill was not executed; findings come from reading its files.
- Anything fetched at install or run time, including remote scripts, package dependencies, and URLs the skill tells the agent to open.
- Content the analyzers cannot read: images, binaries, and some non-English text.
- Known scanner bypass classes. See the methodology and limitations page.
Sources
- Repository: https://github.com/cloudflare/skills
- Raw scan result: skills-building-mcp-server-on-cloudflare-scan.json
- Badge for your README:
- Request a re-scan