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Head-to-head · Ruby Static Analysis Tools

GitHub CodeQL vs Semgrep Assistant

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score GitHub CodeQL #3 in Ruby Static Analysis Tools 8.4/10 Free plan Free plan✓ 2 of 6 features Visit GitHub CodeQL
Semgrep Assistant #6 in Ruby Static Analysis Tools 8.0/10 Free plan Free plan✓ 2 of 6 features Visit Semgrep

GitHub CodeQL leads on 0 checks, Semgrep Assistant on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGitHub CodeQL · 8.4/10
  • Free planboth

GitHub CodeQL scores higher on our rubric for ruby static analysis tools: 8.4 against 8.0 out of 10; our editors rank them #3 and #6.

GitHub CodeQL is the better fit for gitHub-centric teams needing semantic security analysis. Semgrep Assistant is the better fit for teams wanting configurable security rules and AI triage.

  • GitHub CodeQL fits best

    GitHub-centric teams needing semantic security analysis

  • Semgrep Assistant fits best

    Teams wanting configurable security rules and AI triage

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Side by side

Feature GitHub CodeQL 8.4/10 Visit ↗ Semgrep Assistant 8.0/10 Visit ↗
At a glance
Editor score 8.4 8.0
Ranking #3 in Ruby Static Analysis Tools #6 in Ruby Static Analysis Tools
Best for GitHub-centric teams needing semantic security analysis Teams wanting configurable security rules and AI triage
Pricing model Free plan + paid Free plan + paid
Starting price $30/user/mo —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop Cloud, Self-hosted
Platforms Web, Windows, macOS, Linux Web, Windows, macOS, Linux
Support Docs Community, Docs
Integrations 4 integrations 7 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features GitHub CodeQL 2/6 · Semgrep Assistant 2/6
Security analysis Not checked yet ✓ (best)
Type checking Not checked yet —
Automated fixes ✓ (best) Not checked yet
Custom rules ✓ ✓
Hosted option Not checked yet Not checked yet
Self-hosted option Not checked yet Not checked yet
Our review
Pros
  • Data-flow and taint analysis can surface vulnerability paths.
  • Custom queries and standard packs support tailored analysis.
  • Pull-request alerts integrate with GitHub code scanning.
  • AI-assisted finding prioritization, triage, and remediation guidance
  • Custom analysis rules and AI-generated rules
  • CI/CD scanning with GitHub, GitLab, Jenkins, and other integrations
Cons
  • Commercial private-repository use requires GitHub security licensing.
  • Paid GitHub Code Security costs $30 per active committer monthly.
  • Ruby-specific language support is not clearly identified.
  • Ruby-specific capabilities are less clear than Python support
  • Assistant works alongside Semgrep analysis, not as a standalone checker
  • Some plan features are split across separate Teams editions
Our verdict

GitHub CodeQL analyzes source code by turning a codebase into a database and running semantic queries against it. It is aimed at teams that need to detect vulnerabilities, errors, and data-flow problems, particularly those already working…

Read the review →

Semgrep Assistant is an AI feature in the Semgrep AppSec Platform for security and development teams handling code-security findings. It helps prioritize and triage findings, generate custom rules, and guide remediation in developer…

Read the review →
  1. GitHub CodeQLRuby Static Analysis Tools 8.4Free plan
  2. Semgrep AssistantRuby Static Analysis Tools 8.0Free plan

Strengths and trade-offs

  • GitHub CodeQL — where it wins

    • Data-flow and taint analysis can surface vulnerability paths.
    • Custom queries and standard packs support tailored analysis.
    • Pull-request alerts integrate with GitHub code scanning.

    Where it doesn't

    • Commercial private-repository use requires GitHub security licensing.
    • Paid GitHub Code Security costs $30 per active committer monthly.
    • Ruby-specific language support is not clearly identified.

  • Semgrep Assistant — where it wins

    • AI-assisted finding prioritization, triage, and remediation guidance
    • Custom analysis rules and AI-generated rules
    • CI/CD scanning with GitHub, GitLab, Jenkins, and other integrations

    Where it doesn't

    • Ruby-specific capabilities are less clear than Python support
    • Assistant works alongside Semgrep analysis, not as a standalone checker
    • Some plan features are split across separate Teams editions

More comparisons

All ruby static analysis tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update