There are over 20 spec-driven development tools now. Most of them give you a structured template and call it done. A few actually read your codebase. One connects planning, specs, and task tracking in a single workspace without asking you to change your editor or coding agent.
That's Tekk.coach. Connect your repo, describe the feature, get a codebase-grounded spec your coding agents can execute.
How Tekk.coach Works as a Spec-Driven Development Tool
Most spec tools in this category solve a narrow problem: they give you a structure to fill in. GitHub Spec Kit gives you templates. Kiro generates structured files but requires switching to its IDE. Open-source frameworks give you a methodology. None of them read your codebase before generating anything.
Tekk's agent does. Before engaging with you, it indexes your repository — semantic search via embeddings, file search, regex search, directory browsing, and repository profiling across your languages, frameworks, services, and packages. Supports GitHub, GitLab, and Bitbucket. The spec it generates isn't filled from your description alone. It references specific files, uses your existing patterns, and respects architectural decisions you've already made.
The output is a living document in a BlockNote editor: a TL;DR, explicit Building and Not Building scope sections, subtasks with acceptance criteria and file references, assumptions with risk levels, and end-to-end validation scenarios. This document lives connected to a kanban card — you see its status, edit it, and execute from it. It doesn't sit in a folder somewhere becoming stale documentation.
When you're building in a domain you don't fully know — an authentication system, a data pipeline, a security layer — Tekk also searches the web for current best practices during planning. External research gets folded into the spec alongside codebase context.
Key Benefits
Codebase-aware spec generation The agent reads your repo before generating anything. Specs reference your actual files and patterns — not boilerplate that conflicts with what's already there.
Explicit scope protection built in Every plan has a "Not Building" section. You define scope before coding starts, not after scope has crept. This is the spec section most teams skip because it's uncomfortable — Tekk requires it.
One workspace for planning and tracking Tekk's kanban board connects each task to its full planning session. You see what's planned, in progress, and done — with the spec, subtasks, and agent conversation accessible from the card.
Agent-agnostic output Tekk generates specs that Cursor, Codex, Claude Code, or Gemini can execute. You keep your existing coding agent. Tekk is the planning layer on top, not a replacement.
Expert review on demand Beyond spec generation, Tekk supports security reviews, architecture reviews, performance reviews, and agent improvement reviews — all reading your actual codebase. One tool for planning and review.
How It Works
Step 1: Connect your repo Link GitHub, GitLab, or Bitbucket. Tekk indexes languages, frameworks, services, and packages — a one-time setup that takes a few minutes.
Step 2: Open a new task Describe what you want to build. A paragraph is enough. The agent extracts the full requirements through the planning conversation.
Step 3: Agent reads your code Before asking anything, the agent searches the repository. It identifies files the change will affect, existing patterns to respect, and constraints the spec should account for.
Step 4: Questions and options 3–6 clarifying questions, grounded in the code. Then 2–3 architecturally distinct approaches with honest tradeoffs. You pick the direction.
Step 5: Spec generated Complete plan streamed into the task editor: TL;DR, Building / Not Building, subtasks with acceptance criteria and file references, assumptions, validation scenarios. Edit the document, then hand it to your coding agent.
Who This Is For
Developers using Cursor, Claude Code, or Codex who've experienced the rework cycle. You prompt the agent, it writes code that looks right, you realize it missed something, you rework it. Tekk short-circuits that cycle by producing a spec the agent can execute correctly the first time.
Founders and solo builders who don't have a dedicated architect. You're building features across domains where you might not know the right questions to ask. Tekk reads the codebase, identifies the relevant constraints, and structures the plan so the implementation is right from the start.
Small teams (1–10 people) building multiple features in parallel and losing track. Specs in markdown files, tasks in Jira, context in chat windows. Tekk consolidates planning, specs, and task management into one place with no process overhead.
Anyone who's tried open-source spec frameworks and found them still manual. GitHub Spec Kit and BMAD-METHOD are great structures — but you fill them in. Tekk generates the content, grounded in your code.
What Is a Spec-Driven Development Tool?
A spec-driven development tool is software that supports or automates the practice of writing specifications before writing code, specifically in AI-assisted development workflows. The core insight: AI coding agents produce significantly better output when given structured specifications vs. informal prompts. Studies cite 50–80% implementation time savings for well-specified features and error reductions up to 50%.
The tool category emerged as developers moved from "give the agent a paragraph" to "give the agent a spec" — and then discovered that writing good specs is itself a skill that takes time. Spec tools either help you structure the spec (templates, frameworks) or generate it for you (AI-powered platforms). The better ones do both.
In 2026, the landscape has over 20 viable platforms. They separate into two categories: living-spec platforms that keep the spec connected to the codebase and execution (Tekk.coach, Augment Code/Intent), and static-spec tools that produce structured documents you maintain manually (Kiro, GitHub Spec Kit, OpenSpec, BMAD-METHOD, Cursor rules). The critical difference: static specs drift from implementation within hours once the codebase starts changing. Living specs don't drift because they're the working document, not a secondary artifact.
The practice gained significant momentum in 2025 when Thoughtworks placed spec-driven development in its Technology Radar and GitHub released Spec Kit. By early 2026, a combined 137,000+ GitHub stars across the top four spec tools signals real practitioner adoption, not just academic interest.
Ready to Try Tekk.coach?
The spec-driven development tool landscape is crowded. Most tools give you structure. Tekk gives you a spec generated from your actual codebase, in a workspace that connects planning, specs, and task tracking.
Connect your repo and run your first planning session in under five minutes.