Debug artifacts, risky TODOs, and leaked AI prompts in your build
Shipped debug pages, source comments, and system prompts can hand attackers a map of your app. Here is what to strip before launch.
AI builders leave breadcrumbs: debug/test routes, revealing code comments, and even the system prompt that drives an in-app AI feature. None of it is a direct breach, but together it tells an attacker exactly where to push.
What gets flagged
- Debug artifacts — exposed test pages, verbose error output, debug flags left on.
- Risky TODO comments — notes like "TODO: remove before prod — admin bypass" shipped in client JS.
- Exposed system prompts — the hidden instructions for an LLM feature, visible in the bundle, which invite prompt-injection and let users bypass your guardrails.
The fix
- Remove debug/test routes and turn off verbose errors in production.
- Strip sensitive comments from client code (they're shipped verbatim).
- Move LLM system prompts and guardrails server-side; treat anything in the browser as readable by users.
FAQ
Is a leftover debug page actually dangerous?
It is usually an information leak rather than a direct breach, but verbose errors, test routes, and revealing comments give attackers a map of your app and often expose internal details.
Why does an exposed AI system prompt matter?
A system prompt in the browser can be read and ignored by users (prompt injection), letting them bypass your guardrails. Keep prompts and safety logic server-side.
Related questions
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