git bisect
Hacker ApprovedDebugging tool in Developer tools
Recommended for pinning down the commit that introduced a bug, often faster than reading history. Main caveat: it needs a reliable good/bad test.
Recommended for pinning down the commit that introduced a bug, often faster than reading history. Main caveat: it needs a reliable good/bad test.
49 people gave an opinion
- recommend it
- 44
- criticize it
- 5
- approval share
- 90%
Recommended in 5 of 13 months
- November 2025: recommended
- December 2025: not recommended
- January 2026: recommended
- February 2026: recommended
- March 2026: recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: recommended
- August 2026: not recommended
- September 2026: not recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it carries the badge
- 44 people recommend itNeeds 10 or more, met.
- 8.8 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 5 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Pinpoints the commit that caused a bug
“I once root-caused a revenue-losing bug that had the entire rest of my team stumped with ten minutes of git-bisect.”
Comment from 14 Jul 2026 in “The Git history command deserves more attention” “Rather quickly, it'll point you to the commit that caused the regression.”
Comment from 13 Jan 2026 in “Git Rebase for the Terrified” “In the two cases I used it, it identified the individual commit.”
Comment from 13 Jan 2026 in “Git Rebase for the Terrified” - Comment from 3 Nov 2025 in “At the end you use `git bisect`”
- Comment from 28 Mar 2026 in “Show HN: Git bayesect – Bayesian Git bisection for non-deterministic bugs”
- Comment from 3 Nov 2025 in “At the end you use `git bisect`”
Faster than reading logs or code
“with time to write a bisect script and half an hour to run the bisect session I was able to find the commit”
Comment from 3 Nov 2025 in “At the end you use `git bisect`” “It's often a lot faster to bisect than to read the log over the month or two since I touched something.”
Comment from 2 Nov 2025 in “At the end you use `git bisect`” “Even if you can reason through a code base a bisect can still be much quicker.”
Comment from 2 Nov 2025 in “At the end you use `git bisect`” - Comment from 3 Nov 2025 in “At the end you use `git bisect`”
Runs unattended with a pass/fail script
“Git bisect is a wonder, especially combined with its ability to potentially do the success/fail testing on its own”
Comment from 13 Jan 2026 in “Git Rebase for the Terrified” “connected to a script that outputs good/bad, is one of computing's crowning achievements”
Comment from 14 Jul 2026 in “The Git history command deserves more attention” “The fact that it's noninteractive means that you can do other work in the meantime.”
Comment from 3 Nov 2025 in “At the end you use `git bisect`” Handles messy, tangled codebases
“Git bisect was an extremely powerful tool when I worked in a big-ball-of-mud codebase”
Comment from 2 Nov 2025 in “At the end you use `git bisect`” “bisect is really handy because often a bug will have been introduced as a side-effect”
Comment from 2 Nov 2025 in “At the end you use `git bisect`” “--first-parent with bisect really helps when the history is messy.”
Comment from 13 Jan 2026 in “Git Rebase for the Terrified”
What people warn about
Each mark is one comment
Slow to set up or run
“with time to write a bisect script and half an hour to run the bisect session I was able to find the commit”
Comment from 3 Nov 2025 in “At the end you use `git bisect`” “the search for bad commit is more lengthy and less informative than doing the normal experimental process”
Comment from 13 Jan 2026 in “Git Rebase for the Terrified” “IMHO git bisect is slower, especially depending on the reload/hot-reload/compile/whatever process”
Comment from 5 Feb 2026 in “A Broken Heart”
What people recommend instead
The same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| git bisectThis page | 44 | 5 | 90% | 5 | — | Approved |
| MCP Inspector | 7 | 2 | 78% | 4 | — | — |
What people said
40 of the 55 comments that mention it, newest first. Each links to the original comment.
“The ability to drill down with a second `git bisect` run”
“Bisect exists to be a tool you can use to fix the problems you are facing.”
“connected to a script that outputs good/bad, is one of computing's crowning achievements”
“I once root-caused a revenue-losing bug that had the entire rest of my team stumped with ten minutes of git-bisect.”
“bisect is designed to tracks changes from good state to bad state based on your personal criteria”
“git bisect works great for tracking down regressions”
“IMHO git bisect is slower, especially depending on the reload/hot-reload/compile/whatever process”
“I actually think that is the most useful time to use bisect.”
“the search for bad commit is more lengthy and less informative than doing the normal experimental process”
“Git bisect is a wonder, especially combined with its ability to potentially do the success/fail testing on its own”
“In the two cases I used it, it identified the individual commit.”
“--first-parent with bisect really helps when the history is messy.”
“Rather quickly, it'll point you to the commit that caused the regression.”
“every commit being a "good" historical commit allowed that to be much easier”
“There's a "git bisect" command waiting to get in the game”
“it's really nice to be able to point to a changeset when you report it”
“with time to write a bisect script and half an hour to run the bisect session I was able to find the commit”
“git bisect is great when it works; but you will come across things that cannot be found with git bisect”
“Often knowing "which PR introduced this bug" is as handy as knowing which commit did it.”
“it will output which commit caused the change”
“The fact that it's noninteractive means that you can do other work in the meantime.”
“Bisecting makes it practical to narrow in on the faulty commit”
“Sometimes git bisect is really nice to have.”
“git bisect is often the quickest way to find that, in a complex system”
“You should know both particularly for emergencies.”
“bisect is really handy because often a bug will have been introduced as a side-effect”
“git bisect was enormously useful when it was introduced in order to find Linux kernel regressions”
“a bisect allows you to understand why the bug was introduced”
“Sometimes though you also need to know how long a bug has been in place”
“probably one of the most important software tools ever”
“I find git bisect indispensable when tracking down weird kernel bugs.”
“Even if you can reason through a code base a bisect can still be much quicker.”
“Git bisect was an extremely powerful tool when I worked in a big-ball-of-mud codebase”
“It's often a lot faster to bisect than to read the log over the month or two since I touched something.”
“Bisect is for when that happens and the cause is not obvious.”
“run `git biset` to identify what commit introduced the hole”
“Running a bisect to fix which commit introduces it will reduce the area you need to search for the cause.”
“is legit if you have to do the history archaeological digging”
“It's not a workaround. In this case it seems like it, but in general you cannot always rely on your existing tests covering everything.”
“It's still very satisfying to watch run though”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.