Tool · Tool, setup in an afternoon

SonarQube

Sonar (SonarSource) · SonarSource Freemium Beginner

Before you pay anyone for a full review, point SonarQube at the repository for a cheap, automated first read. It scans over 40 languages for bugs, security holes, duplicated code, and a technical debt estimate, so you get a rough health signal in an afternoon. It will not replace a human reviewer's judgment on architecture, but it is a solid starting point to see whether the inherited build is roughly clean or clearly rushed.

  • Automated static analysis flags bugs, security issues, and code smells without anyone running the code.
  • It produces a technical debt estimate that gives a quick sense of how much cleanup the build needs.
  • A free IDE version and self-hosted server option mean you can try it before spending on a paid review.
Open on sonarsource.com ↗

The question it answers

  1. How do I evaluate the code quality of a build I inherited from an agency?

Read with it

  1. Directly answers the scoping question non-technical founders wrestle with, build in-house vs. outsource, backed by patterns... YC Startup Library Article · ~10 min read Does Your Tech Startup Really Need a Technical Co-Founder? (Yes) Y Combinator
  2. This is the most concrete checklist we found for a founder who cannot read the code but can watch the behavior. It names the... VeryCreatives Article 10 Software Development Red Flags Every Non-Technical Founder Should Know Mate Varkonyi
  3. This is the canonical framing for exactly your question: not all messy code is the same. Fowler splits debt on two axes,... martinfowler.com Essay · About a 5 minute read Technical Debt Quadrant Martin Fowler
  4. This is the practical manual for improving code you are afraid to touch, without a rewrite. Feathers gives you techniques to... Prentice Hall (Robert C. Martin Series) Book · 456 pages Working Effectively with Legacy Code Michael C. Feathers
  5. The CTO of India's largest broker explains how a tiny team scales huge load by optimizing the application before touching... Zerodha Tech Blog Article · 15 min read Scaling with common sense Kailash Nadh
  6. Zerodha, India's largest broker, built almost everything in house with a famously small team, and its CTO explains why owning... Software at Scale Podcast · 1 hr Building Zerodha with Kailash Nadh Utsav Shah
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