Built my side project with vibe coding. almost shipped chaos. specs saved it. here’s my workflow

i’m building a small side project right now and i went full vibe mode at the start. it was fun until i realized the same thing keeps happening the AI ships fast, and then i spend 2x time unshipping the “helpful” extras so i switched to a simple process that keeps speed but adds adult supervision what i’m building a small SaaS style tool. FastAPI backend, Next frontend, Supabase for auth and db what changed everything for me i write a tiny spec for every feature before i let any tool touch code my spec template goal in one sentence non goals so it doesn’t add random features files allowed to change api contract. request response errors acceptance checks. exact steps to verify rollback plan. what to revert if it breaks my workflow 1 brain dump into Traycer AI and it turns it into a clean checklist spec 2 implement in small chunks with Claude Code or Codex 3 use Copilot for boring glue edits 4 run tests and force the tool to paste command output. no output. not done example acceptance checks i actually use auth try call endpoint with no token. should fail call with valid token. should pass rate limit hit endpoint 30 times fast. should start returning 429 db confirm Supabase RLS blocks cross user reads why i’m posting i’m curious if other side project people do specs like this or if you just raw vibe it and fix later also if you have any good tricks to stop agents from doing “bonus refactors” nobody asked for i want them if you want i can share the exact spec template file i keep in my repo. it’s short and it’s saved me a stupid amount of time

RedditMar 3ToolDevSource

FL score

out of 100

Verdict

VALIDATE

high confidence

Competition

competitors found, emerging market, funded players

Trend

8 community mentions

An AI-assisted spec generation and workflow tool for solo developers to prevent 'vibe coding chaos' and unwanted AI 'helpful extras' on side projects.

The pain

Solo developers building side projects with AI often experience 'vibe coding' that leads to chaos, rework, and spending 2x the time 'unshipping' unwanted features added by AI assistants, causing frustration and inefficiency.

The gap

Existing project management tools are overkill for solo developers and lack developer-specific, pre-code spec features, particularly for managing AI interactions. No current tool focuses on structured specs with non-goals, API contracts, and acceptance checks to guide AI-assisted development effectively.

Build angle

Build a lightweight, developer-first tool offering a structured spec template (goal, non-goals, files, API contract, acceptance checks, rollback plan) with AI assistance to generate and refine these specs from high-level ideas, specifically for solo side project builders using modern tech stacks.

Strengths

Extremely specific and relatable pain point for a growing audience (solo builders using AI).
Strong founder-problem fit, derived from personal experience.
Clear white space in a crowded market of general PM tools.

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Fly Labs Method

Is the pain real, is there a gap, is it the right time, can one person build it.

Problem clarity: 25
Solution gap: 23
Willingness to pay: 18
Buildability: 9

High potential due to clear, specific pain for solo builders using AI, and a significant gap in the market for a dedicated spec-first workflow tool.

Value Equation

Dream outcome and how likely it feels, against the time and effort it costs.

Strong market demand and a clear, differentiated value proposition for a growing niche of AI-enabled solo developers. Build complexity needs careful scoping.

One-Person Business

Curiosity pull, identity fit, and a path from free value to paid for a solo creator.

Excellent problem clarity and creator fit for a niche audience. Simplicity for MVP is high, but advanced AI features could complicate future development.

Viral Frameworks

Hook strength, shareability, and how cheaply it can be tested.

Clear audience and value, but distribution needs focused effort. Validation can start immediately with the existing workflow.

Builder Lens

Evidence the problem exists, timing, defensibility, and a model that fits on a napkin.

Addresses a highly specific, growing pain point for solo developers using AI. A clear narrow wedge and strong future relevance.

Why this verdict

This idea stands out due to its acute specificity and clear value proposition for a rapidly expanding, tech-savvy audience. The problem is real, daily, and currently poorly addressed by existing solutions. While the full vision of an 'AI agent' powered spec tool might be complex, a focused MVP on structured spec management with basic AI assistance is highly feasible and would provide immediate value. The personal workflow as a starting point, combined with clear market signals, makes this a compelling 'BUILD' for a solo founder.

Five lenses, one composite. How scoring works

The angle

This weekend

Share the exact spec template file, as offered, to validate demand for the structured approach.
Gather more specific feedback on the 'Traycer AI' concept: how much AI generation vs. checklist management is desired?
Build the absolute simplest MVP: a web app for managing and sharing these spec templates, possibly starting with manual input.
Focus initial AI integration on generating first drafts of specs from user input, rather than full 'agent' capabilities, to manage complexity.

Who is already there, emerging market

TrelloFundedVisit
A visual collaboration tool that organizes projects into boards, lists, and cards, ideal for Kanban-style workflows.
Pricing: Free plan available; Standard: $5/user/month (billed annually), Premium: $10/user/month (billed annually), Enterprise: $17.50/user/month (billed annually for 500 users).
NotionFundedVisit
A versatile workspace that combines notes, docs, wikis, tasks, and databases, highly customizable for various workflows.
Pricing: Free plan available; Plus: $8/user/month (billed annually), Business: $15/user/month (billed annually), Enterprise: Custom pricing.
AsanaFundedVisit
A work management platform that helps teams organize, track, and manage their work, from daily tasks to strategic initiatives.
Pricing: Basic: Free; Starter: $10.99/user/month (billed annually), Advanced: $24.99/user/month (billed annually), Enterprise: Custom pricing.
JiraFundedVisit
A powerful issue tracking and project management tool specifically designed for agile software development teams.
Pricing: Free plan available (up to 10 users); Standard: $7.75/user/month, Premium: $15.25/user/month, Enterprise: Custom pricing.
GitHub ProjectsFundedVisit
Integrated project management directly within GitHub repositories, offering Kanban boards and table views for tracking issues and pull requests.
Pricing: Free for public repositories; included with various paid GitHub plans (e.g., Team: $4/user/month, Enterprise: $21/user/month for GitHub Enterprise Cloud).
ClickUpFundedVisit
An all-in-one productivity platform offering highly customizable task management, docs, goals, and chat, aiming to replace multiple work apps.
Pricing: Free Forever plan; Unlimited: $7/user/month (billed annually), Business: $12/user/month (billed annually), Enterprise: Custom pricing.
KanbanqVisit
A fast, lightweight project management tool built for solo developers, creative teams, and small studios, focused on agile structure without bloat.
Pricing: Not explicitly stated, but marketed towards 'small teams & indies' and mentions 'mvp' indicating potential for evolving pricing. The Product Hunt page emphasizes its AI features for task breakdown, sprint summaries, and backlog organization.
AdeptDevVisit
A lightweight, developer-first project manager built for solo front-end builders, emphasizing fast Kanban, clean tasks, and GitHub integration.
Pricing: Not explicitly stated, but targets 'solo dev or small team'.

Funded players

What they charge

Existing solutions offer a wide range of pricing, with a strong emphasis on freemium models. Many popular tools provide generous free tiers for individual users or small teams (e.g., Trello, Notion, Asana, ClickUp, GitHub Projects). Paid plans typically follow a per-user per-month subscription model, with prices ranging from approximately $5 to $25 per user per month for standard tiers, often with discounts for annual billing. Enterprise pricing is custom and includes advanced features like SSO and enhanced security. There's also a segment of free and open-source alternatives.

What people say, 8 mentions

I analyzed 9,300+ "I wish there was an app for this" posts on Reddit. Here is the data on what people actually want.
r/SaaS
Accidently created a community with 3k users and generated some revenue, now a company is threatening to take it away
r/Entrepreneur
Side project I built for my wife's school is now being used by real students and parents
r/Entrepreneur
i replaced the cofounder i couldn't find with an ai agent. it runs my side project while i'm at work.
r/Entrepreneur
I’ve hit the wall with a side project how do people usually handle this?
r/Entrepreneur
How I Built a Side Business Hosting Online Conferences with 550+ Attendees and 45+ Speakers Since 2023
r/Entrepreneur
Built a fully local website change monitor as my first side project – feedback on the approach/webhooks?
r/SaaS
I built a sports analytics engine (14% ROI) as a portfolio project. I validated the tech, but I hate the gambling niche. Where is the best place to sell a "pre-revenue" asset with a proven backend?
r/SaaS

r/r/SaaS

Built my side project with vibe coding. almost shipped chaos. specs saved it. here’s my workflow

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