GSD 2 — Autonomous Spec-Driven Agent Framework Skill by ara.so — Daily 2026 Skills collection GSD 2 is a standalone CLI that turns a structured spec into running software autonomously. It controls the agent harness directly — managing fresh context windows per task, git worktree isolation, crash recovery, cost tracking, and stuck detection — rather than relying on LLM self-loops. One command, walk away, come back to a built project with clean git history. --- Installation Requires Node.js 18+. Works with Claude (Anthropic) as the underlying model via the Pi SDK. --- Core Concepts Work Hierarc…