Spec-driven development became the default AI coding architecture 67-source academic review all agreed 5 repos defining it + 1 saying they're all wrong: spec-kit · BMAD · Open-spec · GSD · superpowers and Pocock's skills How to choose? or should adapt a feature from each one?

Repos: Spec Kit (GitHub): github.com/github/spec-kit BMAD-METHOD (BMad Code): github.com/bmad-code-org/… OpenSpec (Fission AI): github.com/Fission-AI/Ope… GSD (TÂCHES): github.com/gsd-build/get-… Superpowers (Jesse Vincent): github.com/obra/superpowe… Skills (Matt Pocock): github.com/mattpocock/ski… Papers: 1. Spec-Driven Development: From Code to Contract (Piskala, 2025) arxiv.org/abs/2602.00180 2. Intent Formalization (Lahiri, Microsoft Research, 2026) arxiv.org/abs/2603.17150 3. From Code Review to Spec-Driven Contracts (AIware 2026 vision paper, conference July 2026) openreview.net/pdf?id=WC7WAcg… 4. The Productivity-Reliability Paradox (Farrag, University of East London, 2026) arxiv.org/abs/2605.01160

@AlphaSignalAI The useful spec is not a doc the agent reads once. It is a completion contract: accepted inputs, forbidden shortcuts, checks to run, evidence to produce, and what happens when code drifts from the spec.

@AlphaSignalAI The split between "constitution-driven" vs "spec-from-scratch" matters more than which repo—tool choice hinges on how much guardrail vs autonomy your agent needs.

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@AlphaSignalAI Spec-driven reduces guessing, but spec-code drift is the real pain. If spec and code get out of sync, fixing the automated process feels costlier than rewriting. How do you balance that in practice?

@AlphaSignalAI Specs are output. It should be Intent-Driven Development.

@AlphaSignalAI People keep asking which framework wins. Spec-kit, BMAD, Open-spec, GSD, skills - they may end up behaving less like competitors and more like software primitives. The winning workflow could be a stack, not a single methodology.

@AlphaSignalAI I do have really good experience working with #openspec. 👨🏻‍💻 Much better structured and scoped requirements. Better outcomes. 👏

@AlphaSignalAI interesting picks with those 5 repos to consider

@AlphaSignalAI I think the GSD guy literally rugged everyone and ran off...?

@AlphaSignalAI We support Spec-Kit, OpenSpec, and BMAD natively in our open source and cross-platform desktop orchestrator: RunMaestro.ai Compatible with multiple providers today: Claude, Codex, Factory, Copilot, OpenCode with more coming.