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nukon-pi-detect
Tiny, offline prompt-injection scanner for CI pipelines
Most teams shipping LLM features have no automated check for prompt-injection attacks in CI. nukon-pi-detect fixes that. 48 curated patterns across 5 attack categories: classic injection, jailbreaks, delimiter escapes, Unicode smuggling, and indirect injection. Deterministic regex + Unicode codepoint checks. No ML, no network, no API keys. Zero runtime dependencies. Sub-millisecond scans. Exit code 2 on MALICIOUS - fails CI builds by default. HTML report output, JSON for pipelines. Apache 2.0.
Built this because every team I talked to shipping LLM features was testing for code bugs but not prompt-injection attacks. They were relying on the model's built-in safety. That's not a plan.
The most interesting category to build was Unicode smuggling - specifically tag characters in U+E0000-U+E007F. They're completely invisible but your LLM can read them. Almost no scanner handles this.
Happy to answer questions about any of the pattern choices or the confidence scoring approach.
About nukon-pi-detect on Product Hunt
“Tiny, offline prompt-injection scanner for CI pipelines”
nukon-pi-detect was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #80 on the daily leaderboard. Most teams shipping LLM features have no automated check for prompt-injection attacks in CI. nukon-pi-detect fixes that. 48 curated patterns across 5 attack categories: classic injection, jailbreaks, delimiter escapes, Unicode smuggling, and indirect injection. Deterministic regex + Unicode codepoint checks. No ML, no network, no API keys. Zero runtime dependencies. Sub-millisecond scans. Exit code 2 on MALICIOUS - fails CI builds by default. HTML report output, JSON for pipelines. Apache 2.0.
On the analytics side, nukon-pi-detect competes within Open Source, Developer Tools, Artificial Intelligence and GitHub — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how nukon-pi-detect performed against the three products that launched closest to it on the same day.
Who hunted nukon-pi-detect?
nukon-pi-detect was hunted by Akhil. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of nukon-pi-detect including community comment highlights and product details, visit the product overview.
Akhil