# Feature Development

> Build a repository feature by discovering the current flow, resolving ambiguity, implementing the smallest fitting design, and reviewing the diff.

- Skill: `januarylabs/feature-development` (Agent Skill)
- Install (CLI): `npx skillmds@latest add januarylabs/feature-development`
- Raw SKILL.md: https://api.skillmd.com/api/skills/januarylabs/feature-development/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: JanuaryLabs (https://skillmd.com/u/januarylabs)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/januarylabs/feature-development

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# Feature development

Use this workflow for a meaningful repository change. Compress or skip phases
when the request is genuinely trivial.

1. **Discover** — Restate the requested outcome and identify hard constraints.
2. **Explore** — Inspect the real entry points and call sites. Spawn a
   `code-explorer` only for a focused, independent question, then wait for it.
3. **Clarify** — If an unresolved choice would materially change the result,
   stop and ask a concrete question. Otherwise state the safe assumption.
4. **Design** — Reuse the closest existing module. Spawn `code-architect` only
   when the change has a genuine architectural choice, then wait for it.
5. **Implement** — The root agent alone edits files. Keep the diff focused and
   preserve unrelated user changes.
6. **Verify** — Run the narrowest integration-level check that would fail if
   the behavior regressed.
7. **Review** — Spawn `code-reviewer` against the completed diff, wait for it,
   and repair confirmed high-impact findings before summarizing.

Never stage, commit, publish, or deploy unless the user explicitly requests it.