Undefined Ref
Variables, functions, methods referenced before they're defined.
One of 104 modules in the GateTest scan suite. Catches the issue before it reaches code review, and on paid tiers opens a pull request with the fix already written.
Example finding from the undefinedRef module
ReferenceError: handleClick is not defined at line 47 — typo'd from handeClick
Why we catch it
Where deterministic scanning stops and reasoning starts. Used sparingly, not by default.
The Undefined Ref module sits in this category alongside 6 related modules. Together they form one of the layers of a GateTest scan — checks fire in parallel, findings cluster by root cause, and on paid tiers the AI auto-fix loop reads each finding, writes the fix, validates against the scanner, and opens a PR.
How GateTest covers undefined ref
- ✓Runs in every scan. Included on the Full ($99), Scan + Fix ($199), and Forensic Scan ($399) tiers. No additional configuration.
- ✓Free CLI.
npm i -g gatetest && gatetest --module undefinedRefagainst any local repo. No paywall on the scanning itself. - ✓AI auto-fix PR. Scan + Fix tier opens a pull request with the fix, a regression test, and a pair-review by a second Claude. Forensic Scan tier adds per-finding diagnosis and cross-finding attack-chain correlation.
- ✓Honest confidence rating. Findings come with high / medium / low confidence so noisy patterns don't block the gate. The confidence-calibrator trainer reads customer suppressions and tightens rules over time.
Scan your repo for undefined ref
Free preview of the headline findings. Pay per scan — no subscription.
Frequently asked questions
What does the Undefined Ref module catch?
Variables, functions, methods referenced before they're defined. Example finding: ReferenceError: handleClick is not defined at line 47 — typo'd from handeClick
Does GateTest fix Undefined Ref issues automatically?
Yes — on the Scan + Fix tier ($199) and Forensic Scan tier ($399), Claude reads the finding, writes the fix, validates against the scanner, writes a regression test, and opens a pull request for your review.
Which tiers include the Undefined Ref module?
The Full tier ($99), Scan + Fix tier ($199), and Forensic Scan tier ($399) include all 104 modules including Undefined Ref. The Quick tier ($29) only includes 4 essential modules.
Can I run the Undefined Ref module from the CLI for free?
Yes — install with `npm i -g gatetest` and run `gatetest --module undefinedRef` against any local repository. Paid tiers add AI auto-fix and the cross-finding correlation work.