Haystack Code Reviewer
Dev tools
code review
SHOW HN2025
How HN took it
4 positive, 6 neutral or asking, 1 mixed, 1 critical, out of 12 comments about the project. Thread score +0.21.
Idea: 2 for, 0 againstDocs: 0 for, 1 againstPrivacy: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Interesting visual approach to understanding how changes connect
From 4 comments
I have always wanted to do something like this! Great work.
hassleblad23 on HNWhat does it do apart from the call graph? If I had jump-to-definition and find-references in the line-by-line code review UI, what extra benefits would I have by using Haystack?
jerryhomelab on HN> If I had jump-to-definition and find-references in the line-by-line code review UI I think the main benefit of Haystack is that it allows you to keep a model of how the pull…
akshaysg on HNThis looks incredible! How does language support work? (I'm curious about Kotlin in particular)
etwigg on HN
Looks great and promising
From 4 comments
Looks great! I'll be looking out for gitlab integration
rwparris2 on HNThis is promising. Does it works on local without any login? I review github pull requests in vscode and this seems extention of that workflow where I can visualise the PR
hemc4 on HNLooks really great! I'm definitely interested in self hosting
afatparakeet on HNNice job guys!
samactionbase on HN
Objections
Demo video makes review look superficial
From 1 comment
This looks interesting - looking forward to see where it heads! An entirely nitpicky nitpick: The demo GIF rubs me the wrong way. I know, you want to show of all the features…
groby_b on HN
Unclear what the groups and arrows mean
From 1 comment
Maybe this is not for me, but I don't understand what it does What do those groups and arrows mean?
Kkoala on HN
Requests
Self-hosting
From 1 comment
Looks really great! I'm definitely interested in self hosting
afatparakeet on HN
GitLab integration
From 1 comment
Looks great! I'll be looking out for gitlab integration
rwparris2 on HN
Ruby support
From 2 comments
I think I understand what it does and it looks interesting and appealing. My team would need Ruby support. Not sure if you'll be able to connect the graph properly in Ruby, but…
midnightmonster on HNWe would need ruby support too. Beyond that, if my MR/PR has two (or more) logical commits, will the tool support reviewing each in isolation? Often times, I will do a refactor…
watercolorblind on HN
Review individual commits in isolation
From 1 comment
We would need ruby support too. Beyond that, if my MR/PR has two (or more) logical commits, will the tool support reviewing each in isolation? Often times, I will do a refactor…
watercolorblind on HN
Login-free use for public repositories
From 1 comment
This is promising. Does it works on local without any login? I review github pull requests in vscode and this seems extention of that workflow where I can visualise the PR
hemc4 on HN
Questions
How does language support work, e.g. Kotlin
From 1 comment
This looks incredible! How does language support work? (I'm curious about Kotlin in particular)
etwigg on HN
What does it offer beyond a call graph with jump-to-definition
From 1 comment
What does it do apart from the call graph? If I had jump-to-definition and find-references in the line-by-line code review UI, what extra benefits would I have by using Haystack?
jerryhomelab on HN
Alternatives named
VS Code jump-to-definition and find-references
From 2 comments
What does it do apart from the call graph? If I had jump-to-definition and find-references in the line-by-line code review UI, what extra benefits would I have by using Haystack?
jerryhomelab on HNThis is promising. Does it works on local without any login? I review github pull requests in vscode and this seems extention of that workflow where I can visualise the PR
hemc4 on HN