Developers

Developer Toolkit

Ten tested developer skills — TDD enforcement, systematic debugging, code review, webapp testing, MCP building — with our recommended CLAUDE.md baseline and the config that makes them cooperate instead of fight.

  • 10 tested skills with a conflict-free install config
  • Our recommended CLAUDE.md baseline
  • Code review rubric tuned for signal over nitpicks
  • Setup guide with per-skill trigger notes
  • Lifetime updates to this bundle

What you actually download

In the zip

  • SETUP-GUIDE.md — install order + test verdicts
  • install.sh — one-command setup
  • templates/CLAUDE-baseline.md
  • templates/code-review-rubric.md
Preview the SETUP-GUIDE.md (first page)
# Developer Toolkit — Setup Guide

> Every skill below was tested on real work by SkillProof. Scores are out of 10;
> full test reports live at https://skillproof.dev/skills/<slug>.

## Install order (it matters — dependencies first)

### 1. Test-Driven Development — ★ 9.6/10
Forces Claude into strict red-green-refactor discipline.

### 2. Systematic Debugging — ★ 9.6/10
Stops guess-and-check fixes; enforces hypothesis-driven debugging.

### 3. Code Review Checklist — ★ 8.4/10

Every skill inside, with its test verdict

  1. 002

    Systematic Debugging

    Stops guess-and-check fixes; enforces hypothesis-driven debugging.

    Coding by Jesse Vincent tested Jun 25, 2026

    9.6/10 Tested · Works
  2. 003

    Code Review Checklist

    Structured PR review checklist: security, performance, correctness, severity-labeled.

    Coding by LeoYeAI tested Jul 14, 2026

    9.6/10 Tested · Works
  3. 004

    Webapp Testing

    Claude drives your web app in a real browser and reports what breaks.

    Testing by Anthropic tested Jun 19, 2026

    8.8/10 Tested · Works
  4. 005

    MCP Builder

    Build MCP servers that connect Claude to your tools.

    Coding by Anthropic tested Jun 20, 2026

    8.8/10 Tested · Works
  5. 007

    Git Workflow Standards

    Conventional Commits, branch naming, and merge-strategy standards, with 7 reference docs.

    Coding by Galaxy-Dawn tested Jul 14, 2026

    9.2/10 Tested · Works
  6. 008

    SQL Query Generator

    Prompt-only SQL generator that always returns query + explanation + performance notes + test script for BigQuery/Postgres/MySQL/Snowflake — no schema-parsing tooling of its own.

    Data by phuryn tested Jul 14, 2026

    8.4/10 Tested · Works
  7. 009

    Daily Standup

    Drafts a Done / In Progress / Blockers standup from git log and project notes.

    Productivity by pcatattacks tested Jul 14, 2026

    8.8/10 Works with setup
  8. 010

    Changelog Generator

    Turns git commit history into categorized, customer-facing release notes.

    Writing by openakita tested Jul 14, 2026

    9.2/10 Tested · Works

From the test bench

First-party notes from assembling and re-testing this pack — not customer reviews. Buyer feedback is published here as it comes in (reply to your purchase email to add yours).

  • ★★★★★

    TDD enforcement held across a 3-feature session — failing tests first every time, and it refused to skip the cycle. Systematic Debugging root-caused a race condition Claude had previously "fixed" three times by guessing.

    SkillProof test bench · verified during pack assembly

  • ★★★★★

    Code Review Checklist found one real off-by-one and two dead-code paths in a 600-line PR, with zero style-only nitpicks. SQL Query Writer's window-function queries were verified row-by-row against hand-written equivalents.

    SkillProof test bench · verified during pack assembly

  • ★★★★☆

    One setup verdict in the pack: Git Workflow Coach handles commits immediately, but interactive rebase steps have to be run by you since Claude Code blocks interactive git. Webapp Testing caught a real regression our unit tests missed.

    SkillProof test bench · verified during pack assembly