Versalist Challenges
Challenge programs on real work.
The best solutions can become reviewed skills.
How programs workShip agent skills
the way you ship code.
One registry for your team's SKILL.md files. Publish once. Every teammate pulls the same revision.
SKILL.md Versioned instructions. One shared revision.
Publish once. Pin the same revision everywhere.
Find what works. Share it.
Prove it before it ships.
Each product works on its own.
Versalist Skills
One registry for every skill.
Teammates pull the exact revision you published.
How Skills worksVersalist Assurance
Compare two versions before you ship one.
Case-level scores and a recorded decision.
How Assurance worksAlso: Versalist Tools, a free catalog of tool contracts.
Browse ToolsA score you can't audit is decoration.
Assurance scores today's version and the candidate on the same cases, so a better average can't hide the case that broke.
- Comparable or refused
- Same skill, challenge, rubric, cases and model, or no comparison.
- Decided on the record
- Ship, Hold or Needs work, saved with the scores.
review-checklist · revision 2 → 3
Example| Case | Rev 2 | Rev 3 | Δ |
|---|---|---|---|
| missing-rollback | 2/4 | 4/4 | +2 |
| n-plus-one-query | 4/4 | 4/4 | 0 |
| secret-in-log | 4/4 | 1/4 | -3 |
| unsafe-cast | 3/4 | 4/4 | +1 |
| untested-endpoint | 2/4 | 4/4 | +2 |
| stale-feature-flag | 4/4 | 4/4 | 0 |
| overall | 79.2% | 87.5% | +8.3 pts |
HoldOverall up 8.3 points. secret-in-log fell from 4 to 1.
- Public challenges
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- Created in the last 7 days
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- Latest created challenge
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Excludes deleted records and fixtures · rolling 7-day UTC window
Before you get started.
A few answers about the products, your tools, and the first step.
Request a demoVersalist helps teams share versioned agent skills, explore tool contracts, run company challenges and review evidence for agent changes.