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N3MO – See What Breaks Before You Merge
Deterministic PR impact reports in under 2 seconds
Automate your GitHub pull request reviews. N3MO maps code dependencies and calculates the blast radius of every PR change before you merge. Supports 27 languages. Free 15-day trial.
Hey
I'm Raj, solo founder of N3MO.
This started from a failed GSoC attempt I couldn't navigate a large renamed function in an open-source codebase and had no way to see what else would break if I touched it. That frustration became N3MO.
N3MO is a deterministic, AST-based code intelligence engine. It parses your codebase with Tree-sitter and builds a call graph in PostgreSQL no embeddings, no LLM calls, no hallucination risk. When you open a PR, N3MO posts a blast-radius report in under 2 seconds showing exactly which downstream components a change will affect.
A few things that might be useful to know:
Free CLI (pip install n3mo) already at 8k daily active users
GitHub App for automatic PR impact reports
MCP server so Claude, Cursor, and other agents get a real dependency graph instead of raw file chunks or guesses
Benchmarked on TensorFlow (480k+ call edges, ~14 min cold index) and Django (~9x faster after optimization)
Would love your feedback sespecially from anyone who's been burned by a "should be safe" refactor that wasn't. Happy to answer anything about the architecture, pricing, or roadmap in the comments.
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About N3MO – See What Breaks Before You Merge on Product Hunt
“Deterministic PR impact reports in under 2 seconds”
N3MO – See What Breaks Before You Merge was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #97 on the daily leaderboard. Automate your GitHub pull request reviews. N3MO maps code dependencies and calculates the blast radius of every PR change before you merge. Supports 27 languages. Free 15-day trial.
N3MO – See What Breaks Before You Merge was featured in Software Engineering (42.8k followers), Developer Tools (517.5k followers) and GitHub (41.4k followers) on Product Hunt. Together, these topics include over 113.4k products, making this a competitive space to launch in.
Who hunted N3MO – See What Breaks Before You Merge?
N3MO – See What Breaks Before You Merge was hunted by Raj Shekhar. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Raj Shekhar