This skill systematically reverse-engineers a git branch's changes into a structured product and technical specification document. It scopes the diff, explores changed files in parallel, cross-checks for gaps, and produces a markdown spec covering problem statement, architecture, testing strategy, and rollout. It helps engineering managers, code reviewers, documentation specialists, and onboarding leads turn code changes into clear, auditable documentation without reading every file manually.
Follow the documented setup, then try a first task.
Installs: Installs the schematic skill repository for Claude Code. · Claude Code
Run this command in a terminal to clone the repository into Claude Code's skills directory.
git clone https://github.com/blader/schematic.git ~/.claude/skills/schematic
Restart Claude Code so it discovers the skill.
Installs: Installs the schematic skill repository for Codex. · Codex
Run this command in a terminal to clone the repository into Codex's skills directory.
git clone https://github.com/blader/schematic.git ~/.codex/skills/schematic
Restart Codex so it discovers the skill.
Installs: Installs the schematic skill from its GitHub repository using Codex's built-in skill installer. · Codex
Enter this request in a Codex agent session; it is not a terminal command.
Install the skill from github.com/blader/schematic
Restart Codex so it discovers the skill.
Uses schematic
Use the schematic skill to reverse engineer a structured product and technical specification from the currently checked-out branch, comparing it with <base-branch>. Replace <base-branch> with the branch that this work branched from.
Claude
Codex