Linear history with bad commit near beginning - model identifies early commit
Tests ability to identify an early commit as bad in a linear history. Evaluates bisect with the bug near the beginning.
Baseline Repository
These commands set up the repo before the model sees the prompt. They define the starting file structure, staged changes, and Git history.
- 01
git init - 02
git config user.email 'test@test.com' - 03
git config user.name 'Test User' - 04
echo '#!/bin/bash' > test.sh - 05
echo 'grep "TODO" README.md' >> test.sh - 06
chmod +x test.sh - 07
echo '# Project TODO: document setup' > README.md - 08
git add test.sh README.md - 09
git commit -m 'Initial commit' - 10
echo '# Project' > README.md - 11
git add README.md - 12
git commit -m 'remove setup todo' - 13
echo '## Features' >> README.md - 14
git add README.md - 15
git commit -m 'add features section' - 16
echo '## Installation' >> README.md - 17
git add README.md - 18
git commit -m 'add installation section'
Prompt
You are debugging a git repository. The following commit history has one bad commit that broke the build. Identify the bad commit hash (first 7 characters) or commit subject line that introduced the bug. Use the git log and test output to determine which commit is bad.
Your answer should be the commit hash (e.g., 'abc1234') or the commit subject line.
Expected
remove setup todo
Fixture Metrics
Scoped model quality, cost, API time, and token usage for git_bisect/f004.
Loading...
Raw Attempt Evidence
Loading raw attempt evidence…
Model Outputs (546)
The bad commit is **6643b4d** — "remove setup todo"
**Reasoning:** The initial commit `7c2d287` passes, but the very next commit `6643b4d` fails. All subsequent commits (`2d2b04e`, `90dfe9e`) also fail, which is consistent with the bug being introduced at `6643b4d` and never fixed. The first commit where tests transition from PASS to FAIL is the culprit.
fede3fe
JSON Schema
Structured Output
(raw) {"commit": "fede3fe"}
The bad commit is **2809986** ("remove setup todo") — it's the first commit where tests fail, and all subsequent commits continue failing.
9240f5d
JSON Schema
Structured Output
(raw) {"commit": "9240f5d"}
**Bad commit: `a829b7b` — "remove setup todo"**
**Reasoning (bisect logic):**
Walking through the test results in chronological order (oldest → newest):
| Commit | Subject | Result |
|--------|---------|--------|
| 74910f5 | Initial commit | ✅ PASS |
| a829b7b | remove setup todo | ❌ FAIL |
| 4cbaea0 | add features section | ❌ FAIL |
| 814b337 | add installation section | ❌ FAIL |
The build was passing at `74910f5` and first started failing at `a829b7b`. Every commit after that also fails, which is consistent with the breakage being introduced at that transition point. Therefore, **`a829b7b` ("remove setup todo")** is the commit that broke the build.
567620c
JSON Schema
Structured Output
(raw) {"commit": "567620c"}
The bad commit is **851c786** — "remove setup todo".
The tests pass at the initial commit (e4a6f27) but fail starting at 851c786 and every commit after it, indicating that 851c786 is the first bad commit that introduced the breakage.
5a0162f
JSON Schema
Structured Output
(raw) {"commit": "5a0162f"}
The bad commit is **c2463d5** — "remove setup todo"
**Reasoning:**
- `893d884` (Initial commit) passes with exit code 0
- `c2463d5` (remove setup todo) is the **first commit to fail** with exit code 1
- All subsequent commits (`11fdfd3`, `aca443a`) continue to fail, which is consistent with them inheriting the bug introduced in `c2463d5`
The transition from PASS → FAIL happens exactly at `c2463d5`, making it the commit that broke the build.
49f5468
JSON Schema
Structured Output
(raw) {"commit": "49f5468"}
# Analysis
Looking at the test results in chronological order:
1. **71f75f1** (Initial commit): PASS ✓
2. **a4b6bd5** (remove setup todo): FAIL ✗
3. **ce5da82** (add features section): FAIL ✗
4. **e3a8ea6** (add installation section): FAIL ✗
The build transitions from PASS to FAIL between commit 71f75f1 and a4b6bd5. This means the bug was introduced in commit a4b6bd5.
**Answer: a4b6bd5** (or "remove setup todo")
ea22f9e
JSON Schema
Structured Output
(raw) {"commit": "ea22f9e"}
# Answer
**c2aa46e** (or "remove setup todo")
## Explanation
Looking at the test results in chronological order:
- 243d4a1 (Initial commit): **PASS** ✓
- c2aa46e (remove setup todo): **FAIL** ✗ ← First failure
- 0a4f6d2 (add features section): FAIL
- 49e6c84 (add installation section): FAIL
The build transitions from passing to failing at commit **c2aa46e**. This is the first commit where the test fails, making it the bad commit that introduced the bug.
66df418
JSON Schema
Structured Output
(raw) {"commit": "66df418"}
# Analysis
Looking at the test results in chronological order:
- **5a3dd28** (Initial commit): PASS ✓
- **38351d7** (remove setup todo): FAIL ✗ ← First failure
- **c045e1d** (add features section): FAIL ✗
- **e6a2629** (add installation section): FAIL ✗
The build was passing at the initial commit, but failed starting with the next commit.
**Answer: `38351d7` or `remove setup todo`**
This is the bad commit that introduced the bug.
88f528c
JSON Schema
Structured Output
(raw) {"commit": "88f528c"}
# Analysis
Looking at the test results:
- **64da014 (Initial commit)**: PASS ✓
- **eb0d718 (remove setup todo)**: FAIL ✗
- **200fdd6 (add features section)**: FAIL ✗
- **d2cf840 (add installation section)**: FAIL ✗
The first commit that caused the build to fail is **eb0d718**, which means this is where the bug was introduced.
## Answer
**eb0d718** (or "remove setup todo")
d200519
JSON Schema
Structured Output
(raw) {"commit": "d200519"}
# Analysis
Looking at the test results in chronological order (oldest first):
1. **51551da** (Initial commit): ✅ PASS
2. **06bc4ba** (remove setup todo): ❌ FAIL ← **First failure**
3. 84e59bf (add features section): ❌ FAIL
4. e3c631e (add installation section): ❌ FAIL
The test passes at the initial commit but fails starting at commit `06bc4ba`. All subsequent commits also fail, indicating this is where the bug was introduced.
**Answer: `06bc4ba` or `remove setup todo`**
b493600
JSON Schema
Structured Output
(raw) {"commit": "b493600"}
`cfa257a`
9cd1fd3
JSON Schema
Structured Output
(raw) {"commit":"9cd1fd3"}
ef042be
05df990
JSON Schema
Structured Output
(raw) {"commit":"05df990"}
## Bad Commit Identified
**`762ad4b`** — *remove setup todo*
### Reasoning
By examining the test results in chronological order:
| Commit | Subject | Result |
|--------|---------|--------|
| 0f2f810 | Initial commit | ✅ PASS |
| **762ad4b** | **remove setup todo** | **❌ FAIL** |
| 9714628 | add features section | ❌ FAIL |
| 88a50b6 | add installation section | ❌ FAIL |
The build was passing at `0f2f810` and first broke at `762ad4b`. All subsequent commits continue to fail because they inherit the bug introduced in `762ad4b`. This is the classic pattern `git bisect` would identify — the first commit where the test transitions from PASS → FAIL.
2ad4925
JSON Schema
Structured Output
(raw) {"commit":"2ad4925"}
8d0bd8c
5a41052
JSON Schema
Structured Output
(raw) {"commit":"5a41052"}
The bad commit is **b8aad25** (`remove setup todo`). It is the first commit where the test changes from PASS to FAIL.
6068481
JSON Schema
Structured Output
(raw) {"commit":"6068481"}
The bad commit is `0fac5bc` ("remove setup todo"), as it is the first commit where the test changes from PASS to FAIL.
663f490
JSON Schema
Structured Output
(raw) {"commit":"663f490"}
c6d0eec
0e55988
JSON Schema
Structured Output
(raw) {"commit":"0e55988"}
9a5e158
7176664
JSON Schema
Structured Output
(raw) {"commit":"7176664"}
Looking at the test results chronologically:
- `c2d3b7f` Initial commit: **PASS** ✓
- `6ce234f` remove setup todo: **FAIL** ✗ ← First failure
- `0818662` add features section: FAIL
- `7153b13` add installation section: FAIL
The build broke at the first FAIL after a PASS. Since `c2d3b7f` passed and `6ce234f` failed, the bug was introduced in `6ce234f`.
**Bad commit: `6ce234f` (remove setup todo)**
3f88ca4
JSON Schema
Structured Output
(raw) {"commit":"3f88ca4"}
b99bdd6
a649014
JSON Schema
Structured Output
(raw) {"commit":"a649014"}
acb3c8d
2d7de06
JSON Schema
Structured Output
(raw) {"commit":"2d7de06"}
9257884
7562a4c
JSON Schema
Structured Output
(raw) {"commit":"7562a4c"}
The bad commit is **`926e78d`** ("remove setup todo").
**Reasoning:**
- `f517652` (Initial commit): PASS
- `926e78d` (remove setup todo): **FAIL** ← first failure
- `e6521a6` (add features section): FAIL
- `4936bce` (add installation section): FAIL
The build passes at the initial commit and fails starting at `926e78d`. Since this is the first commit where the tests break, and all subsequent commits inherit the failure, `926e78d` is the commit that introduced the bug.
2dd1941
JSON Schema
Structured Output
(raw) {"commit":"2dd1941"}
6fb2a6f
40c51fa
JSON Schema
Structured Output
(raw) {"commit":"40c51fa"}
# Git Bisect Analysis
Looking at the test results in chronological order (oldest first):
| Commit | Subject | Result |
|--------|---------|--------|
| 8c27f89 | Initial commit | ✅ PASS |
| **aa27c0b** | **remove setup todo** | ❌ **FAIL** |
| 13221ce | add features section | ❌ FAIL |
| f68d667 | add installation section | ❌ FAIL |
## Conclusion
The bad commit is:
**`aa27c0b`** — *"remove setup todo"*
## Reasoning
The build **transitioned from PASS → FAIL** at commit `aa27c0b`:
- The parent commit `8c27f89` (Initial commit) **passed** ✅
- `aa27c0b` is the **first commit that failed** ❌
- All subsequent commits (`13221ce`, `f68d667`) inherited the breakage and continued to fail
The later failures are just carrying forward the bug introduced in `aa27c0b`. The commit message *"remove setup todo"* suggests something necessary was removed (possibly a setup step, dependency, or configuration that appeared to be just a "todo" note but was actually required for the build).
4ab8418
JSON Schema
Structured Output
(raw) {"commit": "4ab8418"}
The bad commit is **97d916d** ("remove setup todo").
**Reasoning:**
- `ad16eaf` (Initial commit): PASS
- `97d916d` (remove setup todo): FAIL ← first failure
- `6469056` and `a8b4d08`: continue to FAIL (inherited from the broken state)
Since `97d916d` is the first commit where the build transitions from PASS to FAIL, it is the commit that introduced the bug.
4bff0b4
JSON Schema
Structured Output
(raw) {"commit": "4bff0b4"}
The bad commit is **`0f434e2`** (remove setup todo).
**Reasoning:** The test results show that `55fe3cf` (Initial commit) passed, but the very next commit `0f434e2` failed, and all subsequent commits continued to fail. Since the build broke immediately at `0f434e2` and stayed broken, this is the commit that introduced the bug.
4182f27
JSON Schema
Structured Output
(raw) {"commit": "4182f27"}
The bad commit is **142c424** ("remove setup todo").
**Reasoning:**
- `018b6b9` (Initial commit): PASS ✓
- `142c424` (remove setup todo): **FAIL** ← first failure
- `031014d` (add features section): FAIL
- `d771953` (add installation section): FAIL
The build transitions from PASS to FAIL exactly at commit `142c424`. Since this is the first commit where the tests break—and all subsequent commits inherit the failure—`142c424` is the commit that introduced the bug.
9025bb1
JSON Schema
Structured Output
(raw) {"commit": "9025bb1"}
The bad commit is **5275ae5**
This is the first commit where the build broke (exit code 1), and the previous commit `aefde37` passed. The commit "remove setup todo" introduced the bug.
698a0ad
JSON Schema
Structured Output
(raw) {"commit":"698a0ad"}
fb4fee4
d5f76be
JSON Schema
Structured Output
(raw) {"commit":"d5f76be"}
## Analysis
Looking at the test results ordered from oldest to newest:
| Commit | Subject | Result |
|--------|---------|--------|
| 61aa779 | Initial commit | ✅ PASS |
| 415464e | remove setup todo | ❌ FAIL |
| 4f26eff | add features section | ❌ FAIL |
| 0107300 add installation section | ❌ FAIL |
The build passed on `61aa779` and began failing on `415464e`. All subsequent commits also fail, indicating the bug was introduced and never fixed.
## Bad Commit
**`415464e`** — *"remove setup todo"*
This commit is the first to break the build. The subject suggests something was removed ("setup todo") that was apparently still needed for the build to succeed.
d2e9cc4
JSON Schema
Structured Output
(raw) {"commit":"d2e9cc4"}
aa719b5
e0ad5d5
JSON Schema
Structured Output
(raw) {"commit":"e0ad5d5"}
The bad commit is **b23f55f**
This is the commit ("remove setup todo") where the tests first started failing, indicating it introduced the bug that broke the build.
b0a5585
JSON Schema
Structured Output
(raw) {"commit":"b0a5585"}
The bad commit is **2700685**.
This is the first commit where the tests began failing (exit code 1), while the previous commit `eeb1ddd` passed. All subsequent commits also fail, indicating the bug was introduced at `2700685` ("remove setup todo") and never fixed.
1f1f941
JSON Schema
Structured Output
(raw) {"commit":"1f1f941"}
**dd7fc25** (remove setup todo)
This is the first commit where the build failed (exit code 1), transitioning from the passing `681fa0a Initial commit`. Since all subsequent commits also fail, and this is the point where the failure was first introduced, `dd7fc25` is the bad commit that broke the build.
a5823ee
JSON Schema
Structured Output
(raw) {"commit": "a5823ee"}
efb679b remove setup todo
c064812
JSON Schema
Structured Output
(raw) {"commit":"c064812"}
**696ef1c** (remove setup todo)
This is the first commit where the tests failed (exit code 1), while the initial commit passed. Since the failure persists in subsequent commits without a new introduction point, 696ef1c is the commit that introduced the bug.
21a7fce
JSON Schema
Structured Output
(raw) {"commit":"21a7fce"}
**678c0e4 - remove setup todo**
This is the first commit where the tests start failing (transitioning from PASS at `e3b3799` to FAIL at `678c0e4`), and all subsequent commits continue to fail. This indicates that `678c0e4` introduced the breaking change, and the later commits simply inherited the broken state without fixing it.
f82a8be
JSON Schema
Structured Output
(raw) {"commit":"f82a8be"}
e75256d remove setup todo
6a2ccba
JSON Schema
Structured Output
(raw) {"commit": "6a2ccba"}
The first commit that caused a test failure is `0aa9dc1` ("remove setup todo"). Since the initial commit passed and all subsequent commits failed, the bug was introduced in this commit.
**Answer:** 0aa9dc1
274006d
The first commit that caused the test to fail is `f900940` with the subject line "remove setup todo". Since the initial commit passed and all subsequent commits failed, the bug was introduced in this commit.
Answer: f900940
The bad commit is the one that introduced the bug, which is the first commit where the tests failed. According to the test results, the initial commit (51130ac) passed, but the next commit (a4f104e) failed. Since all subsequent commits also failed, the bug was introduced in a4f104e.
**Answer:** a4f104e
bd6f47c
**Reasoning:**
1. **Test Results Order:** The test results are listed from oldest commit (first to fail) to newest (last to fail): `16dbfcf`, `bd6f47c`, `5759b6d`, `3f4b49e`.
2. **Initial Commit Passes:** The very first commit (`16dbfcf`) passes the test (`PASS`).
3. **First Failure:** The *next* commit (`bd6f47c`) fails (`FAIL`). This is the first commit after the initial one that breaks the build.
4. **Subsequent Failures:** All commits after `bd6f47c` (`5759b6d` and `3f4b49e`) also fail. This means the bug was already present in `bd6f47c` and was not introduced by the later commits.
5. **Conclusion:** The commit that introduced the bug is the first one that caused a failure, which is `bd6f47c`. The subject line "remove setup todo" also identifies this commit.
b276353
JSON Schema
Structured Output
(raw) {
"commit": "b276353"
}
171bd27
66b1bc5
JSON Schema
Structured Output
(raw) {
"commit": "66b1bc5"
}
a7e5bbd
aaacdb7
JSON Schema
Structured Output
(raw) {
"commit": "aaacdb7"
}
ae7c2fbThe bad commit is `ae7c2fb` (first 7 characters of the hash). This commit introduced the bug, as it's the first failing commit after the initial successful build. Subsequent commits (83e0612 and 06c101c) also fail because they depend on the broken state introduced by `ae7c2fb`.
77a2b95
JSON Schema
Structured Output
(raw) {
"commit": "77a2b95"
}
f769787
cf57d8f
JSON Schema
Structured Output
(raw) {"commit": "cf57d8f"}
8060e73
2f6cacf
JSON Schema
Structured Output
(raw) {
"commit": "2f6cacf"
}
6606996
c558cea
JSON Schema
Structured Output
(raw) {"commit":"c558cea"}
95feba4
7a0f670
JSON Schema
Structured Output
(raw) { "commit": "7a0f670" }
The bad commit is **f11335a** (remove setup todo), as this is the first commit where the test failed.
fb47fdf
JSON Schema
Structured Output
(raw) { "commit": "fb47fdf" }
996367f
bf7657a
JSON Schema
Structured Output
(raw) { "commit": "bf7657a" }
b1091fb
24c8f42
JSON Schema
Structured Output
(raw) {"commit":"24c8f42"}
7aac0ad
447dcd8
JSON Schema
Structured Output
(raw) { "commit": "447dcd8"}
329e988
11b6957
JSON Schema
Structured Output
(raw) { "commit": "11b6957" }
Based on the test results, the first commit that fails is `cfa105e` (remove setup todo). Since all subsequent commits also fail, this is the commit that introduced the bug.
**cfa105e**
67ceccd
JSON Schema
Structured Output
(raw) {"commit":"67ceccd"}
7b7a8e0
f49ddf6
JSON Schema
Structured Output
(raw) { "commit": "f49ddf6" }
ba780c2
d3279cc
JSON Schema
Structured Output
(raw) {"commit": "d3279cc"}
5d4ed07
17edeac
JSON Schema
Structured Output
(raw) { "commit": "17edeac" }
67e787f
60c5a5f
JSON Schema
Structured Output
(raw) {"commit": "60c5a5f"}
Based on the test results, the bad commit is:
**e1effe5**
This is the commit "remove setup todo" that first introduced the bug. The Initial commit (2cbde34) passed the tests, but immediately after the "remove setup todo" commit (e1effe5), the tests started failing with exit code 1, and all subsequent commits continued to fail.
5d1a89c
JSON Schema
Structured Output
(raw) {"commit": "5d1a89c"}
cef47c2
9c3745e
JSON Schema
Structured Output
(raw) {"commit": "9c3745e"}
a3d761f
530e7b8
JSON Schema
Structured Output
(raw) {
"commit": "530e7b8"
}
The first bad commit is **465c023** (or the subject line **remove setup todo**).
834f560
JSON Schema
Structured Output
(raw) {"commit": "834f560"}
1f704aa
37b9334
JSON Schema
Structured Output
(raw) {"commit":"37b9334"}
5eab305
40a01e4
JSON Schema
Structured Output
(raw) {"commit":"40a01e4"}
The bad commit is **b574e5e** (remove setup todo).
It is the first commit where the tests failed, following the passing 'Initial commit' (a970886).
7efdec1
JSON Schema
Structured Output
(raw) {"commit": "7efdec1"}
The bad commit is **b42adac**.
**Reasoning:**
* The `f28a9c6` (Initial commit) passed the test.
* The very next commit, `b42adac` (remove setup todo), resulted in a FAIL.
* Therefore, `b42adac` is the commit that introduced the bug.
92fac9e
JSON Schema
Structured Output
(raw) {
"commit": "92fac9e"
}
The bad commit hash is **d7e4a76** (remove setup todo).
f30d199
JSON Schema
Structured Output
(raw) {"commit": "f30d199"}
The bad commit hash is **e49b1a4** (subject: **remove setup todo**).
**Reasoning:**
The test results show that the build was passing at commit `3404b3e` and failed for the first time at commit `e49b1a4`. Therefore, the bug was introduced in that commit.
fa7c7f4
JSON Schema
Structured Output
(raw) {"commit": "fa7c7f4"}
ad85cd1
dead66f
JSON Schema
Structured Output
(raw) {"commit": "dead66f"}
The bad commit that introduced the bug is **ddfd576** (or "remove setup todo").
Looking at the test results (ordered oldest first), the build passes on the *Initial commit* (65a8e68) but starts failing immediately on the very next commit, *remove setup todo* (ddfd576), with an exit code of 1. All subsequent commits continue to fail because the error was introduced in ddfd576.
8641e59
JSON Schema
Structured Output
(raw) {
"commit": "8641e59"
}
The bad commit that introduced the bug is **97e79ec** ("remove setup todo").
36265eb
JSON Schema
Structured Output
(raw) {"commit": "36265eb"}
cd100a2
b2bf139
JSON Schema
Structured Output
(raw) {"commit":"b2bf139"}
c1ce836
2c11d5a
JSON Schema
Structured Output
(raw) {"commit": "2c11d5a"}
b1342b1
3250a8b
JSON Schema
Structured Output
(raw) {
"commit": "3250a8b"
}
8899fd7
c4294e5
JSON Schema
Structured Output
(raw) {"commit":"c4294e5"}
e866feb
9adb754
JSON Schema
Structured Output
(raw) {"commit": "9adb754"}
b6c6b30
441cc00
JSON Schema
Structured Output
(raw) {"commit":"441cc00"}
6e366e3
266b877
JSON Schema
Structured Output
(raw) {"commit":"266b877"}
**fd96409** (or "remove setup todo")
6135175
JSON Schema
Structured Output
(raw) {"commit": "6135175"}
ae9d32a
1e2c816
JSON Schema
Structured Output
(raw) {"commit":"1e2c816"}
58e75d3
9ed0a8b
JSON Schema
Structured Output
(raw) {"commit":"9ed0a8b"}
The bad commit that introduced the bug is **a192884** (remove setup todo).
8d91bb7
JSON Schema
Structured Output
(raw) {"commit":"8d91bb7"}
The bad commit that introduced the bug is **6b0a60b** (remove setup todo).
52db6c5
JSON Schema
Structured Output
(raw) {
"commit": "52db6c5"
}
c7e4dea
5d3c188
JSON Schema
Structured Output
(raw) {"commit":"5d3c188"}
The bad commit that introduced the bug is **`3d8b062`** (subject line: **`remove setup todo`**).
e87165d
JSON Schema
Structured Output
(raw) {"commit":"e87165d"}
The commit that introduced the bug is **8144a49** (subject line: "remove setup todo").
fe822a8
JSON Schema
Structured Output
(raw) {"commit":"fe822a8"}
29b45fb
0f15ae9
JSON Schema
Structured Output
(raw) {"commit": "0f15ae9"}
30359e9
20eb44b
JSON Schema
Structured Output
(raw) {"commit": "20eb44b"}
3003d92
7148a96
JSON Schema
Structured Output
(raw) {"commit": "7148a96"}
31c8215
b065921
JSON Schema
Structured Output
(raw) { "commit": "b065921" }
8461d56
510f47c
JSON Schema
Structured Output
(raw) {"commit": "510f47c"}
e6100e2
501d982
JSON Schema
Structured Output
(raw) {"commit":"501d982"}
2fe8144
8d597e2
JSON Schema
Structured Output
(raw) {"commit": "8d597e2"}
c23b7f0
5127888
JSON Schema
Structured Output
(raw) {"commit":"5127888"}
d65db2c
146e509
JSON Schema
Structured Output
(raw) {"commit":"146e509"}
7b8a158
b5e852a
JSON Schema
Structured Output
(raw) {"commit": "b5e852a"}
The test results indicate which commits caused the failures:
- **3bafea5 Initial commit**: PASS (no issue)
- **8a452a3 remove setup todo**: FAIL (exit code 1)
- **36ee7fa add features section**: FAIL (exit code 1)
- **0ea99fe add installation section**: FAIL (exit code 1)
While multiple commits failed the tests, the problem statement mentions "one bad commit that broke the build." The earliest failure in the history is at **8a452a3** (`remove setup todo`), which is the first commit after the passing initial commit and thus likely the commit that introduced the bug.
**Answer:** `8a452a3` (or the subject line "remove setup todo")
57ec53e
JSON Schema
Structured Output
(raw) { "commit": "57ec53e" }
The bad commit is `b400f8b` (commit subject: "remove setup todo").
The test results show that the initial commit (`10ed007`) passed, but starting from `b400f8b` ("remove setup todo"), the tests began to fail. This indicates that the commit which introduced the bug is `b400f8b`.
d49d6bd
JSON Schema
Structured Output
(raw) {
"commit": "d49d6bd"
}
The bad commit is **980c8ea**, as it is the first commit in the history that caused failures in subsequent commits.
**Answer:** `980c8ea`
79362c6
9ebceb8
JSON Schema
Structured Output
(raw) {
"commit": "9ebceb8"
}
0649f68
a207b76
JSON Schema
Structured Output
(raw) {
"commit": "a207b76"
}
9eb3bd1
035c2ce
JSON Schema
Structured Output
(raw) {
"commit": "035c2ce"
}
7315b8d
6862b75
JSON Schema
Structured Output
(raw) {
"commit": "6862b75"
}
d5908d2
8ad8bd1 remove setup todo
JSON Schema
Structured Output
(raw) {
"commit": "8ad8bd1 remove setup todo"
}
4c23ab9
fd66c3c
JSON Schema
Structured Output
(raw) {
"commit": "fd66c3c"
}
bb293e4
02889a8
JSON Schema
Structured Output
(raw) {"commit":"02889a8"}
**de80e9f** (remove setup todo) is the first commit that introduced the failing build.
9b03ca6
JSON Schema
Structured Output
(raw) {"commit":"9b03ca6"}
c430508
7255b54
JSON Schema
Structured Output
(raw) {
"commit": "7255b54"
}
The badcommit is **2dbbfd8** ("remove setup todo").
This is the first commit in the history where the build transitioned from passing (exit code 0) to failing (exit code 1), indicating it introduced the bug that broke the build. All subsequent commits inherited the failure.
afb6e8f
JSON Schema
Structured Output
(raw) { "commit": "afb6e8f" }
**55bc160** (remove setup todo)
This is the first commit in the history that fails the test, while the previous commit (eec1945 "Initial commit") passed. Since the build broke at this point and remained broken in subsequent commits, 55bc160 is the bad commit that introduced the bug.
25960c7
JSON Schema
Structured Output
(raw) { "commit": "25960c7" }
The bad commit is **4a9a263** (remove setup todo).
This is the first commit in the history (oldest-to-newest traversal) where the tests transition from PASS to FAIL. All subsequent commits inherit the broken state, confirming 4a9a263 as the commit that introduced the bug.
ab7b03f
JSON Schema
Structured Output
(raw) {"commit": "ab7b03f"}
Based on the test results, the first commit that introduced the bug is `b1b26ef remove setup todo`, as it's the first commit in the history (when going from oldest to newest) that shows a test failure (exit code 1). All subsequent commits also fail, but the bug was introduced in `b1b26ef`.
The bad commit is: `b1b26ef` (or "remove setup todo").
66babd3
JSON Schema
Structured Output
(raw) {"commit": "66babd3"}
The first commit that introduced the build failure is the one where the test transitioned from PASS to FAIL. Based on the provided data:
- **3431803** (oldest) → PASS
- **291e986** → FAIL (first failure)
All commits after **291e986** also fail, so the bug was introduced in **291e986**.
291e986
a3016b4
JSON Schema
Structured Output
(raw) {"commit": "a3016b4"}
The first commit that caused the build to fail is the one immediately following the last passing commit. Here, **ad3f405** (Initial commit) passed, and **ccb76f9** (remove setup todo) was the first to fail. Thus, the bad commit is:
`ccb76f9`
ae2837d
JSON Schema
Structured Output
(raw) {"commit": "ae2837d"}
f298772
81af29b
JSON Schema
Structured Output
(raw) {"commit": "81af29b"}
The bad commit is `691b731` (commit subject: "remove setup todo").
This is because:
1. The oldest commit (`322a56e`) passes the tests
2. The next commit (`691b731`) fails the tests
3. All subsequent commits (`2d6eac6` and `406e5ed`) continue to fail
The first failing commit is `691b731`, which means this is where the bug was introduced. All commits after it inherited the broken state.
72af89d
JSON Schema
Structured Output
(raw) {"commit": "72af89d"}
The test results show that the oldest commit (bb69136 - "Initial commit") **passed**, while the next commit (2b258d7 - "remove setup todo") **failed**. Since the bug was introduced between the working and first failing commit, the bad commit is the one that caused the first failure.
**Answer:** `2b258d7`
50ae537
JSON Schema
Structured Output
(raw) {"commit": "50ae537"}
b8da8eb
671934a
JSON Schema
Structured Output
(raw) {"commit":"671934a"}
334c8cf
fc21da2
JSON Schema
Structured Output
(raw)
{ "commit": "fc21da2"}
e91b049
a43c923
JSON Schema
Structured Output
(raw)
{ "commit": "a43c923"}
e6578f0
> 41429ae
git bisect identifies the first bad commit where the test suite transitions from passing to failing. Since `ca8bd6e` is the last known good commit and `41429ae` is the first known bad commit, the bug was introduced in `41429ae` (or its subject line "remove setup todo").
</thinking>
41429ae
JSON Schema
Structured Output
(raw) {"commit":"> 41429ae\ngit bisect identifies the first bad commit where the test suite transitions from passing to failing. Since `ca8bd6e` is the last known good commit and `41429ae` is the first known bad commit, the bug was introduced in `41429ae` (or its subject line \"remove setup todo\").\n</thinking>\n\n41429ae"}
The bad commit is **`029adee`** (subject: `remove setup todo`).
3ff1f7f (remove setup todo)
ae33299
JSON Schema
Structured Output
(raw) {"commit": "ae33299"}
49de510
1297818
JSON Schema
Structured Output
(raw) { "commit": "1297818" }
The bad commit is **c03577a** (subject: "remove setup todo").
This is the first commit where the test suite fails: the previous commit `fe618ed` passes, and `c03577a` introduces the failure.
074b2b4
JSON Schema
Structured Output
(raw) { "commit": "074b2b4" }
**Bad commit: `a0b14e5` — "remove setup todo"**
**Reasoning:**
- `06d28e7` (Initial commit) **PASSES** ✓
- `a0b14e5` (remove setup todo) **FAILS** ✗ ← first failing commit
- All subsequent commits also fail, meaning the bug persisted once introduced.
Since the initial commit passes and the very next commit fails, `a0b14e5` is the first bad commit — the point where the build broke. Interestingly, "removing a TODO" sounds harmless, but the commit likely removed actual setup code or a required step along with the TODO note, breaking the build.
This is exactly what `git bisect` would find:
```
git bisect start
git bisect bad 9453204 # newest commit is bad
git bisect good 06d28e7 # initial commit is good
# → bisect would identify a0b14e5 as the first bad commit
```
**Bad commit: `a643e42` — "remove setup todo"**
**Reasoning:** Using a bisect-style analysis on the test results:
- `3083d48` (Initial commit): **PASS** ✅ — the build works here
- `a643e42` (remove setup todo): **FAIL** ❌ — first failure appears
- `88abab6` and `ca2b1f4`: **FAIL** ❌ — failures persist in all later commits
Since `3083d48` is the last known-good commit and `a643e42` is the first commit where the build breaks, **`a643e42` ("remove setup todo")** is the commit that introduced the bug. Every subsequent commit fails because they all contain this change.
The fix should focus on what was removed in that "remove setup todo" commit — likely something deleted alongside the TODO that the build actually depended on.
**6c23677** (remove setup todo)
The reasoning: the initial commit `79caa82` passes (exit code 0), and the very next commit `6c23677` fails (exit code 1). Since every commit after it also fails, the bug must have been introduced in `6c23677` — it's the first bad commit in the history, just as `git bisect` would identify.
**Bad commit: `2e120dd` — "remove setup todo"**
**Reasoning:**
- `f43603b` (Initial commit): **PASS** — the build works here.
- `2e120dd` (remove setup todo): **FAIL** — the first commit where the build breaks.
Since the commit immediately before it passes and every commit from `2e120dd` onward fails, `2e120dd` is the commit that introduced the bug. (This is the same conclusion `git bisect` would reach: the first bad commit is the oldest failing commit.)
**Bad commit: `3392923` — "remove setup todo"**
Reasoning: The initial commit `8aadb03` passes (exit code 0), but the very next commit, `3392923` ("remove setup todo"), is the first one that fails (exit code 1). Every subsequent commit also fails, which is consistent with the bug being introduced at `3392923` and never fixed afterward.
The bad commit is **ce0e6b6** ("remove setup todo").
**Reasoning:** Working through the commits chronologically:
- `3f77b32` (Initial commit): **PASS** ✅
- `ce0e6b6` (remove setup todo): **FAIL** ❌ ← first failure
- `0708845` (add features section): FAIL
- `93ac2a4` (add installation section): FAIL
The build passed on the initial commit and started failing at `ce0e6b6`, and every subsequent commit continued to fail. Therefore, `ce0e6b6` is the commit that introduced the bug.
This is exactly what `git bisect` would find: with `3f77b32` as the last known good commit and `93ac2a4` as bad, bisect would narrow down to `ce0e6b6` as the first bad commit.
f7b74cc — “remove setup todo”
**Bad commit: `233887a` — "remove setup todo"**
**Reasoning:** Walking through the history from oldest to newest:
| Commit | Subject | Result |
|--------|---------|--------|
| 6d9f448 | Initial commit | ✅ PASS |
| 233887a | remove setup todo | ❌ **FAIL** ← first failure |
| 58dced5 | add features section | ❌ FAIL |
| 9cf495a | add installation section | ❌ FAIL |
Since `6d9f448` (Initial commit) is the last known-good commit, and `233887a` (remove setup todo) is the very next commit and the first to fail, the bug was introduced in **`233887a`**. All subsequent commits inherit the broken state.
Interestingly, the "bad" change may be that removing the "setup todo" item also removed something the build or test depended on (e.g., a placeholder section the test checks for) — worth inspecting that diff with `git show 233887a` to confirm the root cause.
**Bad commit: `a2b680d`** ("remove setup todo")
**Reasoning:**
- The initial commit `8c21541` **passes** (exit code 0), so the build was working at that point.
- The very next commit, `a2b680d`, is the first one to **fail** (exit code 1).
- All later commits (`89173d8`, `2cd19de`) also fail, which is consistent with the bug being introduced at `a2b680d` and persisting through descendants.
Since `a2b680d` is the first commit where the test transitions from PASS to FAIL, it is the commit that introduced the bug.
**3675362** ("remove setup todo")
**Reasoning:** The initial commit `b2b7844` passes (exit code 0), but the very next commit, `3675362 remove setup todo`, fails (exit code 1). All subsequent commits continue to fail, which is consistent with the bug being introduced at `3675362` and never fixed. Therefore, `3675362` is the first bad commit.
7f2696b
3d8b799
JSON Schema
Structured Output
(raw) {
"commit": "3d8b799"
}
c8460d0 (remove setuptodo)
9d88acd
JSON Schema
Structured Output
(raw) {
"commit": "9d88acd"
}
768b3b7
a5a32d3
JSON Schema
Structured Output
(raw) {
"commit": "a5a32d3"
}
a5853c9 remove setup todo
36e8cb3
JSON Schema
Structured Output
(raw) {
"commit": "36e8cb3"
}
a40ad54
04c3e22
JSON Schema
Structured Output
(raw) { "commit":"04c3e22" }
a92d324
f1b4062
JSON Schema
Structured Output
(raw) {
"commit": "f1b4062"
}
5f6b9ac
1c70d66
JSON Schema
Structured Output
(raw) {
"commit": "1c70d66"
}
c9e42ca
1f1dacd
JSON Schema
Structured Output
(raw) { "commit": "1f1dacd" }
The earliest failing commit in the history is **ce764dc remove setup todo**. Since the initial commit passed, and this is the first commit after that which fails, it is the one that introduced the bug.
ce764dc
d29334b
JSON Schema
Structured Output
(raw) {
"commit": "d29334b"
}
57d5c31
68fff32
JSON Schema
Structured Output
(raw) {
"commit": "68fff32"
}
a505d9c
e7fa141
JSON Schema
Structured Output
(raw) {"commit":"e7fa141"}
b9800e5
b73c443
JSON Schema
Structured Output
(raw) {"commit":"b73c443"}
c7c41a6
0673488
JSON Schema
Structured Output
(raw) {"commit":"0673488"}
ff10c70
7ec15d9
JSON Schema
Structured Output
(raw) {"commit":"7ec15d9"}
90fc070
1a4d4d8
JSON Schema
Structured Output
(raw) {"commit":"1a4d4d8"}
a26c05e
f74bd8f
JSON Schema
Structured Output
(raw) {"commit":"f74bd8f"}
7cd49ae
e52b1ce
JSON Schema
Structured Output
(raw) {"commit":"e52b1ce"}
547e3b9
996715d
JSON Schema
Structured Output
(raw) {"commit":"996715d"}
f67e513
25d295d
JSON Schema
Structured Output
(raw) {"commit":"25d295d"}
`321e76d`
ba1f99c
JSON Schema
Structured Output
(raw) {"commit":"ba1f99c"}
1055117
4bf1093
JSON Schema
Structured Output
(raw) {"commit":"4bf1093"}
5191ba2
accf43d
JSON Schema
Structured Output
(raw) {"commit":"accf43d"}
40c018c
b4f3cf6
JSON Schema
Structured Output
(raw) {"commit":"b4f3cf6"}
f36829f
01e20cd
JSON Schema
Structured Output
(raw) {"commit":"01e20cd"}
96a5e9e
c9b9530
JSON Schema
Structured Output
(raw) {"commit":"c9b9530"}
8a83ee8
e462b0f
JSON Schema
Structured Output
(raw) {"commit":"e462b0f"}
4dfaa47
bd424a4
JSON Schema
Structured Output
(raw) {"commit":"bd424a4"}
feb1703
4a5cfea
JSON Schema
Structured Output
(raw) {"commit":"4a5cfea"}
3bae464
6d40167
JSON Schema
Structured Output
(raw) {"commit":"6d40167"}
9e495dd
4d1755c
JSON Schema
Structured Output
(raw) {"commit":"4d1755c"}
6e6033a
e7a2be3
JSON Schema
Structured Output
(raw) {"commit":"e7a2be3"}
dfc42f8
b4de608
JSON Schema
Structured Output
(raw) {"commit":"b4de608"}
ae46779
0b059f3
JSON Schema
Structured Output
(raw) {"commit":"0b059f3"}
07afbe7
933a4b6
JSON Schema
Structured Output
(raw) {"commit":"933a4b6"}
e2901ec
265ffc0
JSON Schema
Structured Output
(raw) {"commit":"265ffc0"}
647515e
e1b27ca
JSON Schema
Structured Output
(raw) {"commit":"e1b27ca"}
9f21e66
504607f
JSON Schema
Structured Output
(raw) {"commit":"504607f"}
e66422b
52d59fd
JSON Schema
Structured Output
(raw) {"commit":"52d59fd"}
ad22245
2f06ce7
JSON Schema
Structured Output
(raw) {"commit":"2f06ce7"}
1821c10
a547e6f
JSON Schema
Structured Output
(raw) {"commit":"a547e6f"}
b6f2154
2107fac
JSON Schema
Structured Output
(raw) {"commit":"2107fac"}
ea3ce7f
195460f
JSON Schema
Structured Output
(raw) {"commit":"195460f"}
0ca5996
925e887
JSON Schema
Structured Output
(raw) {"commit":"925e887"}
151e396
e0ecb52
JSON Schema
Structured Output
(raw) {"commit":"e0ecb52"}
6c43863
9cd0726
JSON Schema
Structured Output
(raw) {"commit":"9cd0726"}
8d13f84
5a08626
JSON Schema
Structured Output
(raw) {"commit":"5a08626"}
b0f1302
482e87a
JSON Schema
Structured Output
(raw) {"commit":"482e87a"}
4d05ade
6d54087
JSON Schema
Structured Output
(raw) {"commit":"6d54087"}
97648ec
JSON Schema
Structured Output
(raw) { "commit": "97648ec" }
79e7daf remove setup todo
37d9a4b
JSON Schema
Structured Output
(raw) {
"commit": "37d9a4b"
}
9af2b98
331fbdb
JSON Schema
Structured Output
(raw) {
"commit": "331fbdb"
}
6d71376 – remove setup todo
49950f0
JSON Schema
Structured Output
(raw) {
"commit": "49950f0"
}
f11d29f (subject: “remove setup todo”)
1f9e887
JSON Schema
Structured Output
(raw) {"commit":"1f9e887"}
e939f32
f7dd6eb
JSON Schema
Structured Output
(raw) { "commit": "f7dd6eb" }
The buggy commit is **3554fcd** (subject: “remove setup todo”).
1f22171
JSON Schema
Structured Output
(raw) { "commit": "1f22171" }
367be8e (remove setup todo)
aa843d0
JSON Schema
Structured Output
(raw) { "commit": "aa843d0" }
c572276
d63c3a6
JSON Schema
Structured Output
(raw) {
"commit": "d63c3a6"
}
e194e65
56df91f
JSON Schema
Structured Output
(raw) {"commit": "56df91f"}
The bad commit is **17456e4**, as it is the first commit where the tests failed, and all subsequent commits also fail due to inheriting the broken state. The initial commit passed, so the problematic change was introduced here.
**Answer:** 17456e4
19d39b0
JSON Schema
Structured Output
(raw) {
"commit": "19d39b0"
}
Looking at the git commit history and test results, I need to identify when the build first broke.
The commits are listed newest first:
1. 50f3b92 - add installation section (FAIL)
2. 1f1925d - add features section (FAIL)
3. 69ffadb - remove setup todo (FAIL)
4. 1a0d7fe - Initial commit (PASS)
The tests show that:
- The initial commit (1a0d7fe) worked fine
- All subsequent commits failed
Since the build was working before (1a0d7fe) and started failing after the first set of changes, I need to find which specific commit introduced the bug. The git log shows commits newest to oldest, but testing happened oldest to newest.
The first failing commit when going from oldest to newest is 69ffadb (remove setup todo), since:
- 1a0d7fe passed
- 69ffadb failed
- All later commits also failed (likely because they were built on top of the already broken code)
Therefore, the bad commit that introduced the bug is **69ffadb** - this is when the build first broke.
1fad44d
eda8a7c
JSON Schema
Structured Output
(raw) {"commit": "eda8a7c"}
350cbc4
82472d1
JSON Schema
Structured Output
(raw) {
"commit": "82472d1"
}
b59d031
1382f36
JSON Schema
Structured Output
(raw) {"commit": "1382f36"}
The bad commit is **bb851ab** (remove setup todo).
Here's why:
1. The **Initial commit (1ddfc6b)** passes tests.
2. The **next commit (bb851ab)** causes the first test failure.
3. All subsequent commits (ee0d0e0, 46894bb) inherit the failure from bb851ab.
Since the failure starts at bb851ab, this is the commit that introduced the bug.
**Answer:** bb851ab
9cb3331
JSON Schema
Structured Output
(raw) {
"commit": "9cb3331"
}
875e6c3
7976f24
JSON Schema
Structured Output
(raw) {
"commit": "7976f24"
}
The bad commit is **ff1a4d2**.
**Explanation**:
- The initial commit (5909505) passes all tests.
- The next commit (ff1a4d2 "remove setup todo") is the first to fail.
- Subsequent commits (74004b4, 6618012) also fail, but the failure started with ff1a4d2.
- Since no earlier commit (only the initial commit) passes, the first failure point is **ff1a4d2**, making it the bad commit.
ed35b64
JSON Schema
Structured Output
(raw) {"commit": "ed35b64"}
Based on the test results, I can see that:
1. **c349a70 Initial commit**: PASS
2. **b48efc8 remove setup todo**: FAIL (first failure)
3. **a6bda3b add features section**: FAIL
4. **6c8d0fc add installation section**: FAIL
The bad commit is **b48efc8** - this is the first commit where the tests failed. The bug was introduced when this commit removed the setup todo, as the initial commit passed all tests.
34df247
JSON Schema
Structured Output
(raw) {"commit": "34df247"}
Looking at the test results chronologically:
1. **daf9781** (Initial commit): PASS ✓
2. **4decb62** (remove setup todo): FAIL ✗
3. **6c9d119** (add features section): FAIL ✗
4. **25414b4** (add installation section): FAIL ✗
The tests were passing initially, then failed starting with commit **4decb62**. Since this is the first commit where the build broke, this is the bad commit that introduced the bug.
81f5062 remove setup todo
JSON Schema
Structured Output
(raw) {"commit": "81f5062 remove setup todo"}
Based on the test results, I can see that:
- Commit `9708d2b` (Initial commit): **PASS**
- Commit `83018c9` (remove setup todo): **FAIL**
The bug was introduced in commit `83018c9` because it's the first commit where the tests failed. All subsequent commits also fail, but the regression was introduced in this commit.
**Bad commit: 83018c9**
0272e83
JSON Schema
Structured Output
(raw) {"commit": "0272e83"}
Looking at the test results, I can see that:
- `d2063c2 Initial commit`: PASS
- `3faf21d remove setup todo`: FAIL
The build was passing on the initial commit but failed on the very next commit `3faf21d remove setup todo`. This is the commit that introduced the bug.
**Bad commit: 3faf21d**
dbfcd4b
JSON Schema
Structured Output
(raw) {"commit": "dbfcd4b"}
Looking at the test results chronologically:
1. **a2faf9e Initial commit**: PASS
2. **de7b9ff remove setup todo**: FAIL (first failure)
3. **2e1d19a add features section**: FAIL
4. **0563cae add installation section**: FAIL
The build was passing in the initial commit (a2faf9e) but failed starting with the next commit (de7b9ff). This indicates that commit **de7b9ff** ("remove setup todo") is the bad commit that introduced the bug.
ce00881
JSON Schema
Structured Output
(raw) {"commit": "ce00881"}
7feae10
90fe0dc
JSON Schema
Structured Output
(raw) {
"commit": "90fe0dc"
}
354454c
3a2d353
JSON Schema
Structured Output
(raw) {
"commit": "3a2d353"
}
The bad commit is **67c7c45** (subject: `remove setup todo`).
**Reasoning:**
1. The **Initial commit (`b5530a0`)** passed the test.
2. The next commit in the history is **`67c7c45`** ("remove setup todo"), which failed the test.
3. All subsequent commits also failed.
4. Therefore, `67c7c45` is the first commit to introduce the failure.
df1ff00
JSON Schema
Structured Output
(raw) {
"commit": "df1ff00"
}
10d279d
a7b7d76 remove setup todo
JSON Schema
Structured Output
(raw) {
"commit": "a7b7d76 remove setup todo"
}
6e40983
becf73a
a9438db
JSON Schema
Structured Output
(raw) { "commit": "a9438db" }
3b32b8a
054ea8d
JSON Schema
Structured Output
(raw) { "commit": "054ea8d" }
696608c
3ec8d2e
JSON Schema
Structured Output
(raw) {
"commit": "3ec8d2e"
}
To identify the bad commit, we examine the test results chronologically (from oldest to newest):
1. **322a56e Initial commit**: **PASS** (exit code 0) - The build was working here.
2. **691b731 remove setup todo**: **FAIL** (exit code 1) - The build broke in this commit.
Since the commit `691b731` is the first one in the history where the test failed after passing in the previous commit, it is the one that introduced the bug.
**691b731**
4770b3b
JSON Schema
Structured Output
(raw) {
"commit": "4770b3b"
}
fcceb48
d247216
JSON Schema
Structured Output
(raw) {
"commit": "d247216"
}
eb518bc
a73d2d8
e1206a9
7a09991
eddfa29
c361498
afcb4eb
14d3459
1392631
9c706a0
83178eb
Based on the test results provided (ordered chronologically from oldest to newest), the first commit that caused a failure is `bd0e1d3`. The initial commit passed, but immediately after this change was applied, the build started failing and remained broken in subsequent commits.
**Bad Commit:** `bd0e1d3`
5232405
The bad commit is **0ca3190** (`remove setup todo`).
**Reasoning:** Looking at the test results from oldest to newest:
- `8887efe` (Initial commit): **PASS** ✅
- `0ca3190` (remove setup todo): **FAIL** ❌ ← First failure
- `dc276a6` (add features section): **FAIL** ❌
- `289c9e5` (add installation section): **FAIL** ❌
The build passed at `8887efe` and broke at `0ca3190`. This is the first commit where the tests fail, making it the commit that introduced the bug. The subsequent commits (`dc276a6` and `289c9e5`) inherited the broken state because the bug was never fixed.
cbf4616
f1f60bb
Based on the test results, the build passed on the initial commit but failed starting with the next commit. The first commit to introduce the failure (the bad commit) is:
**5236ebf** (remove setup todo)
Based on the test results, the first commit that fails is `94d09fd`, while the previous commit `860979e` passes. Therefore, `94d09fd` is the bad commit that introduced the bug.
94d09fd
The bad commit is **cb3cf80** ("remove setup todo").
Going chronologically:
- `2a2d310` Initial commit → **PASS** ✅
- `cb3cf80` remove setup todo → **FAIL** ❌ ← *This is where the build broke*
- `df26a54` add features section → FAIL ❌
- `f989b7a` add installation section → FAIL ❌
The transition from PASS to FAIL occurs at commit `cb3cf80`, making it the commit that introduced the bug.
The bad commit is **d80fbb3** ("remove setup todo").
The last known good commit is `8b66813` (Initial commit: PASS), and the first bad commit after it is `d80fbb3` (remove setup todo: FAIL). This is the commit that introduced the bug.
e1effe5
The bad commit is **da95c68** ("remove setup todo").
**Reasoning:** The initial commit `76024e1` passes (exit code 0), and the very next commit `da95c68` fails (exit code 1). Since this is the transition from PASS to FAIL, `da95c68` is the commit that introduced the bug. All subsequent commits also fail, which is consistent with the bug being introduced at `da95c68`.
This is a classic `git bisect` scenario where the first bad commit is the one immediately after the last known good commit.
8eb0eb4
92dc636
JSON Schema
Structured Output
(raw) {
"commit": "92dc636"
}
5076fe1
241a34f
JSON Schema
Structured Output
(raw) {"commit":"241a34f"}
dde61fc (remove setup todo)
1d3ae31
JSON Schema
Structured Output
(raw) { "commit": "1d3ae31" }
05cff49
69af8b9
JSON Schema
Structured Output
(raw) { "commit": "69af8b9" }
3442983
298ff11
JSON Schema
Structured Output
(raw) { "commit": "298ff11" }
5322310
5c718c1
JSON Schema
Structured Output
(raw) { "commit": "5c718c1" }
59e79bc
e3f73eb
JSON Schema
Structured Output
(raw) {
"commit": "e3f73eb"
}
The first failing test is at `e4de8da`, so that commit introduced the bug.
**e4de8da** (or "remove setup todo")
e465d58
JSON Schema
Structured Output
(raw) {
"commit": "e465d58"
}
bd0cee9 (or "remove setup todo")
5a3820b
JSON Schema
Structured Output
(raw) { "commit": "5a3820b" }
efdb901<|end_message|>
08f8509
79712ca
JSON Schema
Structured Output
(raw) {"commit": "79712ca"}
17447d5
17935fc
a6e54b2
JSON Schema
Structured Output
(raw) {"commit": "a6e54b2"}
The build first fails at `ea57688`, so that commit introduced the bug.
**ea57688** (or "remove setup todo")
c394695
JSON Schema
Structured Output
(raw) { "commit": "c394695" }
806c42e
b220fff
100dbd2
JSON Schema
Structured Output
(raw) {"commit":"100dbd2"}
The first failing commit is **2bdccda** (`remove setup todo`).
- `821bb0b` passes
- `2bdccda` fails (and all later ones fail too)
So the bug was introduced by `2bdccda`.
53c902a
JSON Schema
Structured Output
(raw) {"commit": "53c902a"}
b0f2533
5a0f89c
JSON Schema
Structured Output
(raw) {"commit":"5a0f89c"}
The test results show a clear transition from PASS to FAIL between commits 9bdc475 and b59d031, with all later commits also failing. This isolates the regression to the single commit b59d031 (remove setup todo), which is the first failing state.
Final answer: b59d031
167e1e4
JSON Schema
Structured Output
(raw) {"commit": "167e1e4"}
48633be
13d4eee
JSON Schema
Structured Output
(raw) {"commit":"13d4eee"}
The test results show that the oldest commit (fe3cbe3) passes, but every commit after it fails. This means the first commit in chronological order that introduced the breaking change is the bad one.
That commit is f933733 (subject: remove setup todo).
Final answer: f933733
546c1d8
JSON Schema
Structured Output
(raw) {"commit":"546c1d8"}
Based on the test results, the first commit that fails is **ec7bc20** (remove setup todo). This is the bad commit that introduced the bug, as the build was passing before it and failing after.
2a64b3e
JSON Schema
Structured Output
(raw) {"commit":"2a64b3e"}
f01a704
40f3706
JSON Schema
Structured Output
(raw) {"commit":"40f3706"}
f147ad8
305833e
JSON Schema
Structured Output
(raw) {"commit":"305833e"}
dcc8c3a
953ecd8
JSON Schema
Structured Output
(raw) {"commit":"953ecd8"}
74cbf34
5494e4c
JSON Schema
Structured Output
(raw) {"commit":"5494e4c"}
a61d506
2ce0d23
JSON Schema
Structured Output
(raw) {"commit":"2ce0d23"}
406d831
6fcd46f
JSON Schema
Structured Output
(raw) {"commit":"6fcd46f"}
fca5df2
6fd00e3
JSON Schema
Structured Output
(raw) { "commit": "6fd00e3" }
6b80696
51f5a41
fb524fe remove setup todo
JSON Schema
Structured Output
(raw) { "commit": "fb524fe remove setup todo" }
8113d5b
2cec327
JSON Schema
Structured Output
(raw) { "commit": "2cec327" }
62d17a9
26c38f4
JSON Schema
Structured Output
(raw) {"commit": "26c38f4"}
6372875
944780d
JSON Schema
Structured Output
(raw) { "commit": "944780d" }
cb3a9f5
7dce089
JSON Schema
Structured Output
(raw) {"commit":"7dce089"}
957e5cc
9a5d95c
JSON Schema
Structured Output
(raw) {"commit": "9a5d95c"}
f96edf4
5799903
JSON Schema
Structured Output
(raw) {"commit": "5799903"}
Invalid JSON. Output:
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Invalid JSON. Output:
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Invalid JSON. Output:
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Invalid JSON. Output:
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Invalid JSON. Output: Let's analyze step-by-step:
- **Initial commit (`224fb2f`)**: PASS
- **`ed6fd62...`**: FAIL
- **`d2cc2c0...`**: FAIL
- **`bebb230...`**: FAIL
The **first failure** after the initial commit is at `ed6fd62`. This means the bug was introduced in this commit.
**Answer:**
`ed6fd62`
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Invalid JSON. Output:
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
(empty output)
Failure: Expected target hash/prefix or subject 'remove setup todo'
7249c98 is the bad commit
JSON Schema
Structured Output
(raw) {"commit": "7249c98 is the bad commit"}
Failure: Expected target hash/prefix or subject 'remove setup todo'
Invalid JSON. Output: 1221ace
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Extra data: line 1 column 5 (char 4)
Failure: Failed to parse structured JSON response: Extra data: line 1 column 5 (char 4)
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-995a8d08-f6c9-9969-9ac7-42056d050fde","request_id":"995a8d08-f6c9-9969-9ac7-42056d050fde"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-365295ea-2f26-96d9-a957-ff4ab3777de8","request_id":"365295ea-2f26-96d9-a957-ff4ab3777de8"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-44cd9c97-eb20-95c6-9794-513830dc9d9e","request_id":"44cd9c97-eb20-95c6-9794-513830dc9d9e"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-2d728f7c-d235-97d1-8e90-c752441a2c26","request_id":"2d728f7c-d235-97d1-8e90-c752441a2c26"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-45bd2336-a155-97ca-981d-dfb60b523022","request_id":"45bd2336-a155-97ca-981d-dfb60b523022"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': 'data: {"error":{"code":"invalid_parameter_error","param":null,"message":"\'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error"},"id":"chatcmpl-fff5cdbc-e1ca-96af-8fae-f56a3e47057d"}\n\n', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': 'data: {"error":{"code":"invalid_parameter_error","param":null,"message":"\'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error"},"id":"chatcmpl-7f0b2734-19c6-9d2f-bee9-5a493b4a4943"}\n\n', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': 'data: {"error":{"code":"invalid_parameter_error","param":null,"message":"\'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error"},"id":"chatcmpl-fb4246c5-4dd0-9a58-b4ef-ae0bb5bcf23c"}\n\n', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': 'data: {"error":{"code":"invalid_parameter_error","param":null,"message":"\'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error"},"id":"chatcmpl-a2fe976f-c2d2-9f6f-9451-dc4f026945e3"}\n\n', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': 'data: {"error":{"code":"invalid_parameter_error","param":null,"message":"\'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error"},"id":"chatcmpl-41b5bda5-eb9b-9960-9850-2969e1f683ad"}\n\n', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-cdf630c9-c2ae-9035-bbcc-9274ccac06d8","request_id":"cdf630c9-c2ae-9035-bbcc-9274ccac06d8"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-ff06e22b-5b0c-9605-9413-536924beaf6a","request_id":"ff06e22b-5b0c-9605-9413-536924beaf6a"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-04a642fd-8adc-9c4e-9e78-a5c4c046c658","request_id":"04a642fd-8adc-9c4e-9e78-a5c4c046c658"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-677c04d8-f743-9a9d-8089-0656bead53bd","request_id":"677c04d8-f743-9a9d-8089-0656bead53bd"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-d9fe9acd-8d5b-9625-a4c8-f4dea22fe87d","request_id":"d9fe9acd-8d5b-9625-a4c8-f4dea22fe87d"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-20a24904-4776-9de3-b676-e30103298444","request_id":"20a24904-4776-9de3-b676-e30103298444"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-b86168b5-dfc3-9349-a5d2-b829cc3a34b6","request_id":"b86168b5-dfc3-9349-a5d2-b829cc3a34b6"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-06ca2b8c-b758-9e73-9e42-40f278185c1f","request_id":"06ca2b8c-b758-9e73-9e42-40f278185c1f"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-60a66b51-2045-9728-af8e-9f89092cce47","request_id":"60a66b51-2045-9728-af8e-9f89092cce47"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
(empty output)
JSON Schema
Structured Output
Failure: Error code: 400 - {'error': {'message': 'Provider returned error', 'code': 400, 'metadata': {'raw': '{"error":{"message":"<400> InternalError.Algo.InvalidParameter: \'messages\' must contain the word \'json\' in some form, to use \'response_format\' of type \'json_object\'.","type":"invalid_request_error","param":null,"code":"invalid_parameter_error"},"id":"chatcmpl-c90594a0-2b6d-98e1-9fc3-f6cef8b75352","request_id":"c90594a0-2b6d-98e1-9fc3-f6cef8b75352"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
Invalid JSON. Output: ee849fb{ "commit": "ee849fb" }
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Invalid JSON. Output: The build first fails at commit **298d5b5** (`remove setup todo`), so that is the bad commit.
Answer: `298d5b5`
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Invalid JSON. Output: 5f20f1c
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Extra data: line 1 column 2 (char 1)
Failure: Failed to parse structured JSON response: Extra data: line 1 column 2 (char 1)
Invalid JSON. Output:
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Invalid JSON. Output:
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
7eb186f
Failure: Expected target hash/prefix or subject 'remove setup todo'