Comparisons
How SkillAudit compares
SkillAudit isn't a replacement for the supply-chain hygiene tools you already run. It's the second scanner you add when you start shipping or installing Claude skills and MCP servers — because the dangerous code lives in tool handlers, not in your dependency tree.
Position
Snyk, Dependabot, and GitHub Code Scanning grade the dependency tree and recognise OWASP web patterns. SkillAudit grades the MCP-specific surface — SSRF in fetch(url) tool handlers, prompt-injection susceptibility in tool responses, credential echo from environment variables, and per-axis hygiene with a single A–F buyer grade. Run them together.
Head-to-head comparisons
These pages cover each tool from both angles — "SkillAudit as an alternative" (why you'd add it) and a direct side-by-side "X vs SkillAudit" breakdown for the top-three competitors most MCP authors are already running.
Direct head-to-head
- Snyk vs SkillAudit — same SAST engine class, different rule packs. Snyk covers OWASP patterns in any codebase; SkillAudit covers MCP tool-handler SSRF, prompt injection, and credential echo. Additive in CI.
- Dependabot vs SkillAudit — Dependabot patches CVEs in your dependency tree; SkillAudit grades the tool-handler code on top of those dependencies. No switching cost — run both.
- GitHub Code Scanning vs SkillAudit — CodeQL's standard pack catches OWASP web patterns; SkillAudit's MCP-specific rules catch SSRF in
fetch(args.url)and prompt injection that CodeQL wasn't built to model.
Alternative pages
- SkillAudit as a Snyk alternative — what Snyk's CVE-and-SAST engine catches, what it misses on MCP, and how the two coexist in CI.
- SkillAudit as a Dependabot alternative — Dependabot is foundational supply-chain hygiene; SkillAudit is the buyer-readable grade for the tool surface MCP introduced. Adoption is purely additive.
- SkillAudit as a GitHub Code Scanning alternative — GHCS runs CodeQL's standard pack; SkillAudit runs MCP-shaped rules — SSRF in
fetch(args.url), prompt injection, credential echo — that the stock pack doesn't model. Same engine class, different rule pack. - SkillAudit as a Socket.dev alternative — Socket guards the npm registry against typo-squat, install-script malware, and maintainer takeover. SkillAudit grades the tool-handler code that runs after install. Different layer, complementary checks.
- SkillAudit as an OSV-Scanner alternative — OSV-Scanner answers "are any of my dependencies vulnerable to a known CVE." SkillAudit answers "is the code I wrote on top of those dependencies safe to expose to an LLM as tools."
- SkillAudit as an npm audit alternative —
npm auditis built intonpm installand joins your lockfile against the npm advisory feed. SkillAudit reads tool-handler bodies for SSRF, prompt injection, and credential echo — the dangers MCP introduced that a CVE feed can't see. - SkillAudit as an MCP Inspector alternative — Inspector is Anthropic's interactive debug UI for testing what a server exposes. SkillAudit is a non-interactive security scanner that grades the source code behind that surface. Different stages of the install workflow.
- SkillAudit vs the Anthropic Skills Directory — the directory is a curated allowlist with a one-time editorial review. SkillAudit is a continuous, transparent, public scoreboard with a published rubric. Closed-loop curation vs open-loop scoring; the engineering trust signal that runs alongside the editorial one.
- SkillAudit as a StackHawk alternative — StackHawk is DAST, scanning a running web app from outside for OWASP Top 10. SkillAudit is static + LLM-assisted, reading MCP tool handlers before the server ever runs. Different threat models, different points in the SDLC; both can run.
If there's a tool you'd like us to write up next, tell us.
Why we publish honest comparisons
We have first-party data: SkillAudit has scanned 101 of the most-installed MCP servers and made every grade public. The board is reproducible, the methodology is written up, and the failing repos are not, in general, repos that conventional SCA / SAST tools have flagged. That's not a knock on Snyk or Dependabot — it's a description of where the threat surface moved when MCP shipped tool calls into LLM workflows.
Each page on this index includes a "When the other tool is still the right choice" section. We mean it. If you're protecting a Rails API in production, Snyk is closer to the centre of your needs than we are. If you want zero-config dependency PRs, keep Dependabot. SkillAudit is the second scanner — the one for the new surface — not the first scanner.
The data
Our 101-repo corpus produced this distribution: 19 A · 30 C · 10 D · 42 F. Half the repos shipped SSRF (50/101), 38% had credential-handling findings (38/101), and 10% had command-exec findings (10/101). The corpus covers vendor-official MCPs from Stripe, PayPal, MongoDB, Redis, Cloudflare, AWS, Azure, GCP, Heroku, Notion, Snowflake, Pinecone, Couchbase, Anthropic's nine official MCP language SDKs, and dozens more. Every grade has a public report card with file paths and finding counts.