Nicheloom

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R3

A Local Code Review Tool for You and Your AI Agent

Details

External ID
48855670
Source
HN
Company
—
Product
R3
Website domain
github.com
Launched
July 10, 2026
Cohort
—
Upvotes
5
Upvotes percentile
0.1081242532855436
Tags
—
Fetched at
Sept. 7, 2026, 9:26 p.m.
Updated at
Sept. 7, 2026, 9:26 p.m.

Description

I built r3 to scratch my own itch when reviewing long design doc and planning doc from AI. The chat interface is inherently bad at tracking multiple pieces of feedback across different parts of a document, so I created a lightweight local web UI to organize the review process.I have been using it on my own projects for one week, and it has made giving structured feedback to AI much easier. I thought others working with AI coding agents might find it useful too.I'd love to hear what you think and any feedback you have!

Enrichment

Theme
AI agent frameworks and developer tools
Vertical
Horizontal
Function
Dev tools
Audience
Developer
AI stance
AI feature
Project type
Commercial product
Normalized one-liner
local code review tool for developers and ai agents
Manually corrected
False

Could you build this?

Yes This is a lightweight local web UI tool designed to review long markdown or design docs and collect structured feedback for AI agents, which is easily built with React and a local Node/Python server.

Discussion

2 comments analyzed.

Competitors mentioned: VSCode built-in code review, GitHub PR review interface, Claude skills for code review

Concerns raised: VSCode becoming unsuitable for code review in AI era

Feature requests: Group files by folders in review interface, Inline hints/squiggly lines for review feedback, Local pre-PR review capability

Competitors

Other products that read as similar to this one — 217 launches clear the similarity bar, closest 8 shown.

Attention rank: #183 of 218 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 254 days after the earliest competitor.

Other launches for this product

Same idea, different domain

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