# Build Services

> Build a feature's services/ layer — async capability contracts (ports to the outside world). Optional.

- Skill: `adobe/build-services-2` (Agent Skill)
- Install (CLI): `npx skillmds@latest add adobe/build-services-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/adobe/build-services-2/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: Adobe (https://skillmd.com/u/adobe)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/adobe/build-services-2

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Create the feature's `services/` layer: one `<name>-service/` namespace folder per async
contract — an `interface` (validated with `AsyncDataService.IsValid`), async-only members,
and `create*` factories.

Only if the feature talks to the outside world. Comes after `data/`, before `ecs/`.

The how is in the auto-loading `features/services/index.md` rule (and `namespace.md`).