KillSwitch
a programming language designed to be difficult for LLMs
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HN · launched Sep 19, 2026 · 10 upvotes (top 41%) · 0 views
Niche: programming languages and interpreters · 161 launches, 3 in the last 7 days ▼ -67% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 161 launches in programming languages and interpreters →
Could you build this?
Partial While an interpreter or compiler for an esoteric language is straightforward to vibe-code, designing a genuinely novel language grammar and semantics that consistently defeat LLM reasoning requires specialized programming language theory and adversarial benchmark research.
What it would actually take: The architecture comprises a custom language grammar, parser (e.g., in Rust or Python using Lark/tree-sitter), and stack/state-machine runtime. The difficult part is the formal language design: inventing non-standard evaluation orders, context-sensitive grammar quirks, or semantic traps specifically tuned to exploit LLM tokenization and transformer attention limitations, verified through extensive benchmarking suites against modern frontier models.
Discussion
2 comments analyzed.
Competitors
Other products that read as similar to this one : 3210 launches clear the similarity bar, closest 8 shown.
Attention rank: #1310 of 3211 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 324 days after the earliest competitor.
- B-IR · hn · 2026-01-12 · 62 upvotes · similarity 0.71
- Tokensift, an open-sourced token-efficiency linter for LLM prompts · hn · 2026-08-29 · 6 upvotes · similarity 0.68
- probably · github · 2026-09-19 · 11 upvotes · similarity 0.67
- Crespo · hn · 2026-06-22 · 14 upvotes · similarity 0.66
- jevals · hn · 2026-09-20 · 47 upvotes · similarity 0.66
- rizzo-flow · github · 2026-09-21 · 455 upvotes · similarity 0.66
- litjev · github · 2026-09-17 · 36 upvotes · similarity 0.65
- jevify · github · 2026-09-19 · 35 upvotes · similarity 0.63
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