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mps-aspect-constraints
JetBrains/MPSSkill
Use when defining or editing MPS language constraints — property validators / setters / getters, referent search scopes (imperative or inherited via `ScopeProvider.getScope`), `referentSetHandler` side effects, default-scope blocks, `canBeChild` / `canBeParent` / `canBeAncestor` / `canBeRoot` placement rules, `defaultConcreteConcept` for abstract concepts, `set <read-only>` and `{name}` aliasing, and scope helpers (`SimpleRoleScope`, `ListScope`, `CompositeScope`, `HidingByNameScope`). Reach for this skill whenever the task involves authoring or modifying `<lang>/languageModels/constraints.mps
Why this score
This repo hosts 10 skills, so its 1,661 stars are split between them (about 166 each) for scoring.
Popularity score: 72/100 from public GitHub signals only. It shows how widely used and maintained this is, not how well it works. Not included yet: the fake-star check. The security scan is shown separately and doesn't change the score. How we rank
Security
Scanned Oct 21, 2026 at commit b81b54023cfd, first 300 source files (it's a large repo), with Cisco's open-source skill-scanner.
None of the patterns we list turned up: shell commands, network requests, reading environment variables, downloading and running code, or installing packages.
A scan lists patterns in the code. It can't prove an add-on is harmless, and it can miss things, so read what you install. How we scan
Alternatives
Other makers' add-ons that do the same job, next to this one.
| Name | Score | Stars | Context | Updated |
|---|---|---|---|---|
| This onemps-aspect-constraints JetBrains/MPS · Skill | 72 | ★ 1.7k | ≈156 always | 16d ago |
| ljg-constraint lijigang/ljg-skills · Skill Both about constraint and defining | 78 | ★ 7.5k | ≈118 always | 16d ago |
| ad-environment-constraints ADScanPro/Claude-AD · Skill Both about constraint | 58 | ★ 212 | ≈28 always | 2mo ago |
| analyze-constraints-readiness yogsoth-ai/de-anthropocentric-research-engine · Skill Both about constraint and block | 61 | ★ 504 | ≈79 always | 16d ago |