jonathanowitz

Implement Slice — Development skill for Claude Code

Development community

RED-GREEN TDD for one vertical slice — write tests, confirm RED, implement, confirm GREEN.

How to install Implement Slice

Installs to ~/.claude/skills/jonathanowitz-claude-skills-implement-slice/SKILL.md

Terminal

mkdir -p ~/.claude/skills/jonathanowitz-claude-skills-implement-slice && curl -fsSL https://raw.githubusercontent.com/jonathanowitz/claude-skills/HEAD/commands/implement-slice.md -o ~/.claude/skills/jonathanowitz-claude-skills-implement-slice/SKILL.md

Restart Claude Code, or start a new session, for it to be picked up.

What Implement Slice does

description: RED-GREEN TDD for one vertical slice — write tests, confirm RED, implement, confirm GREEN argument-hint: allowed-tools: [Read, Edit, Write, Grep, Glob, Bash]

Implement Slice

Execute one vertical slice using strict RED→GREEN TDD. This is the repeatable unit of `/implement`.

**Input:** A slice name ($ARGUMENTS) matching a section in the implementation plan file.

Step 1: Read the Slice Spec

Find the slice in `tmp/implement-plan-*.md`.

Alternatives in Development

Build — Implement tasks incrementally using TDD and vertical slices 263 ★
Sdlc Code Implementation — Build working software that meets acceptance criteria 58 ★
Cc Safe — Tip 34: Write lots of tests (and use TDD) 42 ★