Silmaril: Self-healing Prompt Injection Defense
Block 2x more attacks with 10x lower latency.
Details
- External ID
- 99681
- Source
- YC
- Company
- Silmaril
- Product
- Silmaril: Self-healing Prompt Injection Defense
- Website domain
- silmaril.dev
- Launched
- April 13, 2026
- Cohort
- Spring 2026
- Upvotes
- 21
- Upvotes percentile
- 0.4642857142857143
- Tags
- —
- Fetched at
- Oct. 1, 2026, 1 a.m.
- Updated at
- Oct. 1, 2026, 1 a.m.
Enrichment
- Theme
- Vertical
- Security
- Function
- Compliance & governance
- Audience
- B2B
- AI stance
- AI feature
- Project type
- Commercial product
- Normalized one-liner
- defense against prompt injection attacks
- Manually corrected
- False
Could you build this?
No Runtime prompt injection defense with 10x lower latency requires proprietary low-latency classifiers, real-time trajectory analysis against adversarial attacks, and deep AI security research that cannot be replicated through simple prompts.
What it would actually take: A real system relies on custom-trained, ultra-low-latency lightweight classification models running at the edge or sidecar level (sub-5ms inference in C++/Rust via ONNX or TensorRT) to inspect agent trajectories, MCP tool calls, and inputs. It requires a continuous red-teaming and automated pipeline to collect emerging zero-day prompt injection vectors and fine-tune classifiers without degrading legitimate tool calling, which demands specialized AI security and ML systems researchers.
Competitors
Other products that read as similar to this one — 72 launches clear the similarity bar, closest 8 shown.
Attention rank: #28 of 73 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 142 days after the earliest competitor.
- genpark-indirect-prompt-injection-sanitizer-skill · github · 2026-09-26 · 7 upvotes · similarity 0.44
- genpark-indirect-prompt-injection-sanitizer-skill · github · 2026-09-26 · 7 upvotes · similarity 0.44
- vaivar · github · 2026-09-15 · 7 upvotes · similarity 0.42
- VoiceGoat · hn · 2026-04-28 · 14 upvotes · similarity 0.40
- Every push-up becomes an attack in a camera-counted RPG game · hn · 2026-08-26 · 21 upvotes · similarity 0.39
- BDB-Guardian · github · 2026-09-20 · 11 upvotes · similarity 0.38
- genpark-agent-prompt-injection-jailbreak-sentinel-skill · github · 2026-09-28 · 7 upvotes · similarity 0.37
- genpark-agent-prompt-injection-jailbreak-sentinel-skill · github · 2026-09-28 · 7 upvotes · similarity 0.37
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a compliance & governance tool for Media & entertainment yet.