Tdd

The biggest failure mode when using AI coding agents is letting them skip the test. Superpowers is an open-source framework — 99K+ GitHub stars, 2.5M+ VS Code extension downloads, official Claude Plugin Marketplace listing — that enforces test-driven development as a hard constraint on Claude Code rather than a suggestion. Here’s how to set it up and what actually changes in practice. What Is the Superpowers Framework and Why TDD Enforcement Matters Superpowers is a framework that installs as a system prompt layer between your requests and Claude Code’s reasoning engine, enforcing a 5-phase TDD discipline on every coding task: requirements clarification, test writing, implementation, test passing, and refactoring. Unlike .cursorrules or a CLAUDE.md file that suggests behavior, Superpowers uses a structured agent protocol that blocks code generation until a failing test exists. The framework reached 99K+ GitHub stars and an official listing on the Anthropic Claude Plugin Marketplace, with 2.5M+ VS Code extension downloads as of 2026. The core insight behind Superpowers is that AI coding agents are optimistic — they generate code that looks correct and compiles cleanly, but fails in edge cases that a test suite would catch immediately. When you add TDD enforcement at the framework level, Claude Code can’t take the shortcut of writing implementation first and hoping tests follow. The workflow discipline is structural, not optional. For developers who have shipped code with AI agents only to find regressions a week later, this matters significantly. The free tier is available for individual use with a Pro plan at $20/month for team features. ...

The Superpowers framework is the fastest way to stop your AI coding agent from shipping broken code. Instead of hoping the model follows best practices, Superpowers installs a structured set of skills that enforce a clarify → design → plan → code → verify discipline on every task—red tests before green, always. What Is the Superpowers Framework? (The Problem It Solves) Superpowers is an open-source agent skills framework created by Jesse Vincent (obra) that encodes professional software engineering discipline—particularly test-driven development—into reusable skill files that AI coding agents auto-trigger by context. Released in October 2025, it gained 1,528 GitHub stars in its first 24 hours and reached 129,443 stars by April 2026, making it one of the most starred coding-agent repositories ever. The framework emerged from a concrete frustration: AI agents like Claude Code are capable of writing correct code, but when left unguided they skip tests, cut corners on design, and produce implementations that pass their own ad-hoc checks rather than actual requirements. Superpowers solves this by shipping 14 composable skills—from brainstorming to subagent code review—that transform an unconstrained coding agent into a disciplined engineering collaborator. Rather than patching behavior with a long CLAUDE.md paragraph, each skill is a focused SKILL.md file that triggers at the right moment and dispatches fresh subagents to handle isolated subtasks like writing failing tests or running a two-stage review. ...