Skip to main content
[GETTING STARTED]

Getting Started with XOR GitHub App

Install in 2 minutes. First result in 15. One-click GitHub App install, first auto-review walkthrough, and engineering KPI triad.

Installation

One-click install from github.com/apps/xor-hardener. Select your org, choose repositories, and authorize. XOR creates an evergreen issue in each repo listing every capability and how to trigger it.

Your first interaction

Mention @xor-hardener in any PR comment with what you need. XOR reads the diff, checks for vulnerabilities, and posts a structured review. No configuration files. No YAML.

2 min
Install time
15 min
First result
0
Config files needed

Install in 2 minutes. First result in 15.

XOR's GitHub App runs security analysis on your pull requests. Mention @xor-hardener in any PR or issue comment, tell it what you need, and it does the work. No configuration files. No YAML. One install, then prompt it.

Verification = reproduce the vulnerability, apply the patch, re-run the exploit harness, and reject if behavior deviates.

Engineering KPI triad

13 min

Median time to verified fix

From CVE to merged patch

45+ min

Reviewer minutes saved

Reclaimed per vulnerability

370

Broken patches caught

Rejected before review

Source: CVE-Agent-Bench, 128 CVEs, 13 agents evaluated. Full results →

Installation

Prerequisites: GitHub org admin access and at least one active repository.

  1. Go to github.com/apps/xor-hardener
  2. Click Install
  3. Select your org
  4. Choose "Only select repositories," then pick 1-5 repos to start
  5. Click Install & Authorize

What happens next

  • XOR creates a tracking issue in each selected repo ("XOR Evergreen Issue") listing every capability and how to trigger it
  • XOR sets up a read-only mirror of each repo for analysis
  • You can mention @xor-hardener in any PR or issue to request work

Your first interaction

Open any pull request. Add a comment:

@xor-hardener Review this PR for security issues.

XOR reads the diff, runs your test suite against the proposed code, checks for new vulnerabilities, and posts a structured review with inline comments. The app analyzes the change in context. It's not a generic scanner. For every capability, see Platform Capabilities.

Data isolation

Your code stays in your org. XOR operates on a read-only mirror with no write access to your repositories. All analysis runs against this mirror. When you uninstall, the mirror is deleted.

Training data: Your code never becomes training data without explicit opt-in. XOR analyzes your dependencies; it doesn't learn from your proprietary code.

[NEXT STEPS]

Start using XOR

FAQ

How long does installation take?

Under 2 minutes. Go to github.com/apps/xor-hardener, click Install, select your org and repos. XOR creates a tracking issue in each repo and you can start using it immediately.

Does XOR have write access to my repositories?

No. XOR operates on a read-only mirror. All analysis runs against this mirror. When you uninstall, the mirror is deleted. Your code never becomes training data without explicit opt-in.

What is the first thing I should try?

Open any pull request and comment: @xor-hardener Review this PR for security issues. XOR reads the diff, checks for vulnerabilities, and posts a structured review with inline comments.

[RELATED TOPICS]

See which agents produce fixes that work

128 CVEs. 15 agents. 1,920 evaluations. Agents learn from every run.