Quibbler
A critic for your coding agent that learns what you want
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HN · launched Oct 31, 2025 · 114 upvotes (top 8%) · 0 views
Niche: automated code review tools · 204 launches, 7 in the last 7 days ▼ -22% · Explore this niche →
Category and tags
- Horizontal
- Agent / copilot
- Developer
- AI-native
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 204 launches in automated code review tools →
Could you build this?
Yes A critic/linter agent that monitors coding agents and learns preferences is essentially an LLM evaluator wrapper with prompt history, few-shot contextual memory, and standard git/diff parsing.
Discussion
20 comments analyzed.
Competitors mentioned: Factory Factory Factory, Claude Code sub-agents, AWS Bedrock
Concerns raised: Anthropic API key required in addition to Pro subscription, Unclear how subagents invoke and communicate bidirectionally, Demo video not working on GitHub, Appears to be work-in-progress/incomplete
Feature requests: Support for non-coding tasks, API token that uses Pro subscription pool instead of separate billing, Dedicated FPGAs for running multiple Quibblers near real-time
Competitors
Other products that read as similar to this one : 4309 launches clear the similarity bar, closest 8 shown.
Attention rank: #338 of 4310 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 2 days after the earliest competitor.
- A framework that makes your AI coding agent learn from every session · hn · 2026-02-10 · 8 upvotes · similarity 0.75
- agent-scaffold · github · 2026-10-20 · 11 upvotes · similarity 0.74
- skills · github · 2026-10-05 · 19 upvotes · similarity 0.74
- Syntropy: The agentic coding app for complex tasks · yc · 2026-03-04 · 8 upvotes · similarity 0.71
- kubic · github · 2026-10-22 · 42 upvotes · similarity 0.70
- Komi-learn · hn · 2026-05-31 · 27 upvotes · similarity 0.70
- Estack · github · 2026-10-09 · 29 upvotes · similarity 0.69
- jouet · github · 2026-10-30 · 17 upvotes · similarity 0.69
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