Sigil
compile a SKILL.md the model MUST run, not "might"
Details
- External ID
- 49036750
- Source
- HN
- Company
- —
- Product
- Sigil
- Website domain
- github.com
- Launched
- July 24, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.1081242532855436
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Enrichment
- Theme
- modular ai agent skills and toolkits
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- AI feature
- Project type
- Commercial product
- Normalized one-liner
- enforce model compliance with skill specifications
- Manually corrected
- False
Could you build this?
Yes It is a specialized prompt compiler/validator tool that formats markdown instructions and constraints for LLM tool use into a deterministic schema.
Discussion
2 comments analyzed.
Competitors mentioned: Jaseci
Concerns raised: Unclear how product works
Competitors
Other products that read as similar to this one — 37 launches clear the similarity bar, closest 8 shown.
Attention rank: #36 of 38 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 239 days after the earliest competitor.
- eval-standard-builder-skill · github · 2026-09-14 · 8 upvotes · similarity 0.45
- Agenthatch · hn · 2026-06-17 · 8 upvotes · similarity 0.45
- Generate SKILL.md files from URLs, in the browser · hn · 2026-05-04 · 10 upvotes · similarity 0.44
- HEXIS · github · 2026-09-17 · 82 upvotes · similarity 0.44
- Design.md Generator · hn · 2026-05-14 · 11 upvotes · similarity 0.39
- Rustobol · hn · 2026-04-01 · 5 upvotes · similarity 0.39
- Orbit a systems level programming language that compiles .sh to LLVM · hn · 2025-12-19 · 17 upvotes · similarity 0.37
- toolhost · github · 2026-09-11 · 22 upvotes · similarity 0.35
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.