Lean Build
Build feature work with high overbuilding risk. Use for new behavior, product slices, or integrations where repository reuse, strict scope, and an explicit stop condition matter.
Specification
- Skill ID
- juliusbrussee/caveman/lean-build
- Publisher
- juliusbrussee
- Repository
- caveman
- Installs
- 1,351
- Files
- 2
- Synced
- Oct 23, 2026
How to use it
Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.
juliusbrussee/caveman/lean-buildInstalls these files- SKILL.md
- agents/openai.yaml
What this skill tells the agent
Lean build
Native Core's architecture-first simplicity remains mandatory. Turn feature into complete narrow outcome fitting system.
- Derive observable acceptance and explicit non-goals from request and repository.
- Trace entry point through layers owning invariants.
- Deliver coherent end-to-end path across responsible layers; never force work into one file, direct expression, or local patch.
- Reuse fitting seam. Refactor when patching duplicates behavior, weakens ownership, or hides root cause.
- Omit modes, providers, config, extensibility, and polish unless acceptance needs them.
- Add surface, dependency, service, config, or migration only for lifecycle design or acceptance; state material tradeoff.
- Keep work runnable; preserve Core safety.
Exercise path. Run focused proof. Stop when acceptance passes. Report only material omissions and trigger.
More from juliusbrussee
Use this skill in a project
Open any RiverX project, search the Skills panel for juliusbrussee/caveman/lean-build, and install it in one click.