entity
Skill4 starsChanged 2 months agoMITView on GitHub
Create a domain entity with business logic. Use when modeling core business objects like Product, Order, User. Use this skill whenever creating aggregate roots or entities with identity, validation schemas, behavior methods, and domain invariants. Dispatch hub — routes to typescript/go variants by file extension.
Files
Entity
Domain object with identity and lifecycle. Owns business invariants and encapsulates rules through behavior methods. Receives primitives, constructs value objects internally. State transitions trigger domain events — where the event is born differs by language, intentionally: in TypeScript the entity carries no event API (the use case builds the event after repo.save() and persists it to the outbox via domainEventRepository.save(event, tx)); in Go the entity raises it (AddDomainEvent) and the use case drains via PullDomainEvents.
The shape and idioms of this primitive differ per backend language; the lang-specific playbooks below carry the concrete rules, code, and bad practices.
Language variants
| Backend | Playbook | Registry |
TypeScript — packages/api/typescript/ | typescript/SKILL.md | typescript/registry.yaml |
Go — packages/api/go/ | go/SKILL.md | go/registry.yaml |
How dispatch works
scripts/review.ts infers the language from the file extension (.ts / .go) and loads the matching <lang>/registry.yaml. The CLI scaffolder takes a --lang flag (--lang=typescript / --lang=go) or infers it from cwd. When editing or reviewing code, open the lang playbook matching the file you're touching — patterns and bad practices are coded per-language (e.g. ENT-GO-01).
Other versions2 projects use a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 2
- abouchard11/midnight-seo-skills★ 1same name
- ch4570/vulpora★ 1same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository45 other files it gives its agents.
- CLAUDE.mdCLAUDE.md
- agentSkill
- bounded-contextSkill
- clean-branchSkill
- commitSkill
- componentSkill
- controllerSkill
- db-modellingSkill
- ddd-modelingSkill
- ddd-specSkill
- design-systemSkill
- desktop-shellSkill
- e2eSkill
- enumSkill
- errorsSkill
- eventSkill
- formSkill
- grill-with-docsSkill
- handlerSkill
- handoffSkill
- middlewareSkill
- migrateSkill
- prdSkill
- primitiveSkill
- projectionSkill
- projectorSkill
- querySkill
- repositorySkill
- reviewSkill
- routeSkill
- saas-researchSkill
- schedulerSkill
- schemaSkill
- sdkSkill
- serviceSkill
- spec-reviewSkill
- storeSkill
- storybookSkill
- task-breakdownSkill
- testSkill
- trace-analysisSkill
- ui-compositionSkill
- usecaseSkill
- user-storiesSkill
- value-objectSkill
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

