Bad commit changes index.js and styles.css - model identifies multi-file bad commit
Tests ability to identify a multi-file bad commit (index.js + styles.css) via bisect. Evaluates bisect for frontend multi-file regressions.
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 -q "color: blue" styles.css && grep -q "blue" index.js' >> test.sh - 06
chmod +x test.sh - 07
echo 'body { color: blue; }' > styles.css && echo 'document.body.style.color = "blue";' > index.js - 08
git add test.sh styles.css index.js && git commit -m 'Initial commit' - 09
echo 'body { background: white; }' >> styles.css - 10
git add styles.css index.js && git commit -m 'add blue styling' - 11
echo 'body { color: red; }' > styles.css && echo 'document.body.style.color = "red";' > index.js - 12
git add styles.css index.js && git commit -m 'change to red' - 13
echo 'document.title = "Theme";' >> index.js - 14
git add index.js && git commit -m 'add theme title'
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
change to red
Fixture Metrics
Scoped model quality, cost, API time, and token usage for git_bisect/f011.
Loading...
Raw Attempt Evidence
Loading raw attempt evidence…
Model Outputs (760)
The first failing commit is **b7d3e4d** — "change to red". All commits before it pass, and every commit after it also fails, so this is the commit that introduced the bug.
af5628c
JSON Schema
Structured Output
(raw) {"commit":"af5628c"}
The bad commit is **e19d415** ("change to red") — it's the first commit where the tests transition from PASS to FAIL.
d9d1814
JSON Schema
Structured Output
(raw) {"commit": "d9d1814"}
**Bad commit: `ff906b8` — "change to red"**
Reasoning from the bisect data:
- `9c95a58` Initial commit → PASS
- `4c71081` add blue styling → PASS
- `ff906b8` change to red → **FAIL** ← first failing commit
- `b88dd93` add theme title → FAIL (inherits the breakage)
The build was passing through `4c71081` and first broke at `ff906b8`, so that commit introduced the bug. The later commit `b88dd93` is failing only because it sits on top of the already-broken state.
49bcb12
JSON Schema
Structured Output
(raw) {"commit": "49bcb12"}
The first failing commit is **71b4fb1** ("change to red"). Commits before it pass, and every commit after it also fails, so this is the one that introduced the bug.
482c20e
JSON Schema
Structured Output
(raw) {"commit": "482c20e"}
The first commit where tests transition from PASS to FAIL is **2d1bda0** ("change to red"). The commit before it (d7cca83) passes, and every commit from 2d1bda0 onward fails, so that is the commit that introduced the bug.
**Answer: `2d1bda0`** — "change to red"
dc55ea7
JSON Schema
Structured Output
(raw) {"commit": "dc55ea7"}
The bad commit is **6d4a189** — "change to red"
**Reasoning:** Walking through the test results in chronological order:
- `64c3079` (Initial commit): PASS
- `86cbadd` (add blue styling): PASS
- `6d4a189` (change to red): **FAIL** ← first failing commit
- `49d93b1` (add theme title): FAIL (inherits the breakage)
The build transitioned from passing to failing at commit `6d4a189`, so "change to red" introduced the bug. The subsequent commit fails only because it's built on top of the broken one.
e9989b0
JSON Schema
Structured Output
(raw) {"commit": "e9989b0"}
The bad commit is **03c52e3** ("change to red") — it's the first commit where tests go from PASS to FAIL.
223c2b7
JSON Schema
Structured Output
(raw) {"commit": "223c2b7"}
**Bad commit: `2f526e8` — "change to red"**
**Reasoning (bisect logic):**
| Commit | Subject | Result |
|--------|---------|--------|
| e6fd992 | Initial commit | ✅ PASS |
| 393143d | add blue styling | ✅ PASS |
| **2f526e8** | **change to red** | ❌ **FAIL** ← first failure |
| 04f2e8c | add theme title | ❌ FAIL |
The build passes through `393143d` and first fails at `2f526e8`. Since every commit after it also fails, the transition from PASS → FAIL pinpoints **`2f526e8` ("change to red")** as the commit that introduced the bug. The subsequent commit (`04f2e8c`) fails only because it's built on top of the broken one.
5a27ff1
JSON Schema
Structured Output
(raw) {"commit": "5a27ff1"}
The bad commit is **c7a5a7f** ("change to red").
Tests pass through `91933b7 add blue styling` but first fail at `c7a5a7f change to red`, and continue failing afterward — so c7a5a7f introduced the bug.
a872873
JSON Schema
Structured Output
(raw) {"commit": "a872873"}
**Bad commit: `e53590e` — "change to red"**
**Reasoning (bisection logic):**
- `0ac2673` (Initial commit): PASS ✅
- `2458695` (add blue styling): PASS ✅
- `e53590e` (change to red): FAIL ❌ ← first failing commit
- `54a7ddc` (add theme title): FAIL ❌ (inherits the breakage)
The build passed through `2458695` and first failed at `e53590e`, so the commit that introduced the bug is **e53590e ("change to red")**.
3444517
JSON Schema
Structured Output
(raw) {"commit": "3444517"}
# Analysis
Looking at the test results in chronological order:
1. **a435133** (Initial commit): PASS ✓
2. **dc531a7** (add blue styling): PASS ✓
3. **337a101** (change to red): FAIL ✗ ← First failure
4. **498960f** (add theme title): FAIL ✗ (still failing)
The bad commit is **337a101** because:
- It's the first commit where the build failed
- All commits before it passed
- Commits after it continue to fail (the bug persists)
**Answer: `337a101` or `change to red`**
49fc9b8
JSON Schema
Structured Output
(raw) {"commit": "49fc9b8"}
# Answer
**379198d** (or "change to red")
## Analysis
Looking at the test results in chronological order:
- bca1a8d (Initial commit): ✅ PASS
- c23c130 (add blue styling): ✅ PASS
- **379198d (change to red): ❌ FAIL** ← First failure
- f7e0ed8 (add theme title): ❌ FAIL
The first commit where tests started failing is **379198d - change to red**. This is the bad commit that broke the build.
d636f88
JSON Schema
Structured Output
(raw) {"commit": "d636f88"}
# Analysis
Looking at the test results chronologically:
1. **caebdfc** (Initial commit): ✅ PASS
2. **3a0b4f6** (add blue styling): ✅ PASS
3. **0eff70d** (change to red): ❌ FAIL ← First failure
4. **dafc233** (add theme title): ❌ FAIL
The first commit where the build fails is **0eff70d**.
**Answer: `0eff70d`** (or "change to red")
fb7dc55
JSON Schema
Structured Output
(raw) {"commit": "fb7dc55"}
# Analysis
Looking at the test results in chronological order:
1. **9dffe56** (Initial commit): ✅ PASS
2. **d8435bf** (add blue styling): ✅ PASS
3. **835b5d2** (change to red): ❌ FAIL
4. **86dea11** (add theme title): ❌ FAIL
The first commit where the tests failed is **835b5d2**. Since this is the first failing test and the previous commit passed, this commit introduced the bug.
**Answer: `835b5d2`** (or "change to red")
5501757
JSON Schema
Structured Output
(raw) {"commit": "5501757"}
# Analysis
Looking at the test results in chronological order:
1. dee788a (Initial commit): **PASS** ✓
2. 6cd3032 (add blue styling): **PASS** ✓
3. 3eccf40 (change to red): **FAIL** ✗ ← First failure
4. c72ce83 (add theme title): **FAIL** ✗
The build transitions from PASS to FAIL at commit **3eccf40**. This is the first commit where the tests failed, indicating this is where the bug was introduced.
**Answer: `3eccf40` or `change to red`**
5c7d4e0
JSON Schema
Structured Output
(raw) {"commit": "5c7d4e0"}
The bad commit is `d447eea` ("change to red"). It is the first commit where the test changes from PASS to FAIL.
be4abb8
JSON Schema
Structured Output
(raw) {"commit":"be4abb8"}
c80790f
6f3ba2c
JSON Schema
Structured Output
(raw) {"commit":"6f3ba2c"}
## Bad Commit Identified
**`eff65fc`** — *change to red*
### Reasoning
| Commit | Result |
|--------|--------|
| `14d4766` Initial commit | ✅ PASS |
| `08c4504` add blue styling | ✅ PASS |
| **`eff65fc` change to red** | **❌ FAIL** |
| `d02afd4` add theme title | ❌ FAIL |
The build was passing through `08c4504`, and the first failure appeared at `eff65fc`. Since `d02afd4` simply inherits the already-broken state, the bug was **introduced** by commit `eff65fc` ("change to red").
cb442d0
JSON Schema
Structured Output
(raw) {"commit":"cb442d0"}
**b79a14b**
a74fde1
JSON Schema
Structured Output
(raw) {"commit":"a74fde1"}
The bad commit is **ba26b51** ("change to red"). This is the first commit where the test changes from PASS to FAIL.
f271300
JSON Schema
Structured Output
(raw) {"commit":"f271300"}
The bad commit is **fd6f312** ("change to red"). It is the first commit where the tests change from PASS to FAIL.
2114507
JSON Schema
Structured Output
(raw) {"commit":"2114507"}
a7a26d5
0de17ee
JSON Schema
Structured Output
(raw) {"commit":"0de17ee"}
d0f4f99
c42574b
JSON Schema
Structured Output
(raw) {"commit":"c42574b"}
Looking at the test results chronologically:
- `ded3bf1` Initial commit: **PASS**
- `9078497` add blue styling: **PASS**
- `a292688` change to red: **FAIL** ← First failure
- `56f32a4` add theme title: **FAIL** (inherited failure)
The build transitions from PASS to FAIL at commit `a292688`. This is the commit that introduced the bug.
**Bad commit: `a292688` (change to red)**
cabe446
JSON Schema
Structured Output
(raw) {"commit":"cabe446"}
d337b29
8c32647
JSON Schema
Structured Output
(raw) {"commit":"8c32647"}
403aed7
80ebb78
JSON Schema
Structured Output
(raw) {"commit":"80ebb78"}
dbd731e
9504ccc
JSON Schema
Structured Output
(raw) {"commit":"9504ccc"}
**cb53802** ("change to red")
This is the bad commit. The test results show a clean transition from PASS to FAIL at this point:
- `c918686` Initial commit: **PASS**
- `2f4b6e5` add blue styling: **PASS**
- `cb53802` change to red: **FAIL** ← first failure (bad commit)
- `821bc8a` add theme title: **FAIL** (inherits the broken build)
Since `2f4b6e5` passed and `cb53802` is the first commit to fail, the bug was introduced in **cb53802**.
7844824
JSON Schema
Structured Output
(raw) {"commit":"7844824"}
2db0d2e
fb5503c
JSON Schema
Structured Output
(raw) {"commit": "fb5503c"}
## Analysis
Looking at the test results in chronological order (oldest → newest):
| Commit | Subject | Result |
|--------|---------|--------|
| 603774f | Initial commit | ✅ PASS |
| e8369d8 | add blue styling | ✅ PASS |
| **2780435** | **change to red** | ❌ **FAIL** |
| 32f6cf9 | add theme title | ❌ FAIL |
## Bad Commit
**`2780435`** — "change to red"
## Reasoning
The build **transitions from PASS → FAIL** at commit `2780435`:
- The last known-good commit is `e8369d8` (add blue styling) — PASS
- The **first failing commit** is `2780435` (change to red) — FAIL
The subsequent commit `32f6cf9` also fails, but only because it inherited the broken state from `2780435`. In a `git bisect`, the culprit is always the *first* commit where the test flips from passing to failing.
**Answer: `2780435` (change to red)**
ea21c05
JSON Schema
Structured Output
(raw) {"commit": "ea21c05"}
The bad commit is **d646066** ("change to red").
The test results show a clear transition from PASS to FAIL at this commit:
- `88f2338` (add blue styling): **PASS**
- `d646066` (change to red): **FAIL** ← first failure
- `a1754d9` (add theme title): **FAIL** (inherits the broken build)
Since `d646066` is the first commit where the build broke, it's the commit that introduced the bug.
9b31b07
JSON Schema
Structured Output
(raw) {"commit": "9b31b07"}
The bad commit is **`443a319`** ("change to red").
**Reasoning:**
- `443259d` (Initial commit): PASS
- `9c292e6` (add blue styling): PASS
- `443a319` (change to red): **FAIL** ← first failing commit
- `26ffd4c` (add theme title): FAIL (inherits the broken state)
Since the build first breaks at `443a319`, that commit introduced the bug. The subsequent failure in `26ffd4c` is just a continuation of the already-broken build.
8d79d2a
JSON Schema
Structured Output
(raw) {"commit": "8d79d2a"}
# Bad Commit Identification
## Analysis
Looking at the test results in chronological order (oldest first):
| Commit | Subject | Result |
|--------|---------|--------|
| `2c0c66f` | Initial commit | ✅ PASS |
| `69d8876` | add blue styling | ✅ PASS |
| `e4662f1` | **change to red** | ❌ FAIL |
| `5064667` | add theme title | ❌ FAIL |
## Conclusion
The build transitions from **PASS → FAIL** at commit `e4662f1`.
- Commit `69d8876` ("add blue styling") is the last **good** commit.
- Commit `e4662f1` ("change to red") is the first **bad** commit — it introduced the bug.
- The subsequent commit `5064667` inherits the failure (it's failing because of the bug already present, not a new one).
## Answer
**`e4662f1`** ("change to red")
f532652
JSON Schema
Structured Output
(raw) {"commit": "f532652"}
The bad commit is **489849c** ("change to red").
The tests pass through 3fdae54 ("add blue styling"). They first fail at 489849c ("change to red"), and the only later commit, 2bb7150, also fails. That makes 489849c the first failing commit, so it introduced the breakage.
acd9c4d
JSON Schema
Structured Output
(raw) {"commit":"acd9c4d"}
The bad commit is **3a8223c** ("change to red").
The tests pass at 2b69292 ("add blue styling"). They first fail at 3a8223c ("change to red"). The later commit, fc7b94e ("add theme title"), still fails because it is built on top of the broken change. So 3a8223c is the commit that introduced the bug.
**Answer: 3a8223c**
7db2026
JSON Schema
Structured Output
(raw) {"commit":"7db2026"}
The bad commit is **`81abfb9` ("change to red")**.
- `8199c55` (Initial commit) passes.
- `97a6aa6` (add blue styling) passes. This is the last good commit.
- `81abfb9` (change to red) fails. This is the first bad commit.
- `242b313` (add theme title) fails because it is built on top of the broken commit.
The build went from passing to failing at `81abfb9`, so that commit introduced the bug. This is the same result `git bisect` would give with `8199c55` or `97a6aa6` marked good and `242b313` marked bad.
9b85285
JSON Schema
Structured Output
(raw) {"commit":"9b85285"}
The bad commit is **a61cb39 ("change to red")**.
- **301aef0** (Initial commit): PASS
- **23c5419** (add blue styling): PASS, the last good commit
- **a61cb39** (change to red): FAIL, the first failing commit
- **4ead440** (add theme title): FAIL, which inherits the failure from its parent
a61cb39 is where the tests first go from passing to failing, so it introduced the bug.
4a786e1
JSON Schema
Structured Output
(raw) {"commit":"4a786e1"}
The bad commit is **40cdf51** ("change to red").
- **d9c7701** (Initial commit): PASS
- **60b009b** (add blue styling): PASS. This is the last good commit.
- **40cdf51** (change to red): FAIL. This is the first failure.
- **0965724** (add theme title): FAIL. It still fails because it builds on the broken commit.
The build broke at the change from blue to red.
864429f
JSON Schema
Structured Output
(raw) {"commit":"864429f"}
**Bad commit: `065be1f` — "change to red"**
Reasoning from the bisect data:
| Commit | Subject | Result |
|--------|---------|--------|
| cfb0682 | Initial commit | PASS |
| f15d61c | add blue styling | PASS |
| **065be1f** | **change to red** | **FAIL** ← first failure |
| 246bb06 | add theme title | FAIL (inherited) |
The build passes through `f15d61c` and fails starting at `065be1f`, so `065be1f` is the commit that introduced the breakage. The subsequent failure in `246bb06` is just the inherited breakage from its parent, not a new defect.
45cb118
JSON Schema
Structured Output
(raw) {"commit": "45cb118"}
e68a6b3
e9a49a4
JSON Schema
Structured Output
(raw) {"commit":"e9a49a4"}
**Bad commit: `4ab289a` — "change to red"**
**Reasoning:**
The test results show a clean transition from passing to failing:
| Commit | Subject | Result |
|--------|---------|--------|
| `1723263` | Initial commit | ✅ PASS |
| `4a5dfc1` | add blue styling | ✅ PASS |
| `4ab289a` | **change to red** | ❌ **FAIL** ← first failure |
| `dceb92e` | add theme title | ❌ FAIL |
Since `4a5dfc1` was the last known-good commit and `4ab289a` is the first commit where the build breaks, the bug was introduced by `4ab289a`. The subsequent failure in `dceb92e` is just inherited breakage — that commit merely adds a theme title on top of an already-broken tree.
To confirm and inspect the culprit:
```bash
git show 4ab289a # review the diff that broke the build
git bisect start dceb92e 4a5dfc1 # would land on 4ab289a as well
```
0d765c6
JSON Schema
Structured Output
(raw) {"commit": "0d765c6"}
**83279a0** — "change to red"
This is the bad commit. The test results show a clean transition from PASS to FAIL at this point:
- `3dacee5` (Initial commit): PASS
- `75263a9` (add blue styling): PASS
- `83279a0` (change to red): **FAIL** ← first failure
- `a79cbef` (add theme title): FAIL (inherited breakage)
Since `75263a9` was the last passing commit and `83279a0` is the first failing one, the bug was introduced in `83279a0`. The subsequent failure in `a79cbef` is just the same breakage carried forward, not a new defect.
a6c6a01
JSON Schema
Structured Output
(raw) {"commit":"a6c6a01"}
**Bad commit: `6a886f7` — "change to red"**
**Reasoning:**
The test results show a clean transition from passing to failing at a single point in history:
| Commit | Subject | Result |
|--------|---------|--------|
| `3a214cb` | Initial commit | PASS |
| `a986c8b` | add blue styling | PASS |
| **`6a886f7`** | **change to red** | **FAIL** ← first failure |
| `2711fdc` | add theme title | FAIL (inherited) |
Since `a986c8b` was the last known-good commit and `6a886f7` is the first commit where the build breaks, the regression was introduced by `6a886f7`. The subsequent failure in `2711fdc` is simply the broken state being carried forward — that commit only adds a theme title and is not itself the culprit.
**Next step:** inspect the change with `git show 6a886f7` (the styling change to red likely introduced a syntax error or invalid value), or confirm automatically with:
```
git bisect start 2711fdc 3a214cb
```
bab27f8
JSON Schema
Structured Output
(raw) {"commit":"bab27f8"}
Based on the test results, the build was passing through commit `4e92390` (add blue styling) and started failing at commit `0f0e174` (change to red).
The bad commit is: **`0f0e174`**
7717570
JSON Schema
Structured Output
(raw) {"commit":"7717570"}
`06f13be`
3deea92
JSON Schema
Structured Output
(raw) {"commit":"3deea92"}
## Analysis
Looking at the test results from oldest to newest:
| Commit | Subject | Result |
|--------|---------|--------|
| `0919a34` | Initial commit | ✅ PASS |
| `fec742a` | add blue styling | ✅ PASS |
| `ac0657a` | change to red | ❌ FAIL |
| `171061b` | add theme title | ❌ FAIL |
The build was passing through `fec742a` and first broke at `ac0657a`. All subsequent commits also fail, which is consistent with an unresolved bug introduced at that point.
## Answer
**`ac0657a`** — *"change to red"*
This is the first commit where the build fails. The subsequent failure in `171061b` is inherited from this unresolved breakage.
5d4ab3f
JSON Schema
Structured Output
(raw) {"commit":"5d4ab3f"}
d39c92b
bfec826
JSON Schema
Structured Output
(raw) {"commit":"bfec826"}
The bad commit is **4c385b6**
74ec218
JSON Schema
Structured Output
(raw) {"commit":"74ec218"}
The bad commit is **67ff532** ("change to red"), as it is the first commit where the build fails.
e1252b1
JSON Schema
Structured Output
(raw) {"commit":"e1252b1"}
**5aa1c7b** ("change to red") is the bad commit.
**Reasoning:** Using bisection logic on the test results:
- `4e0b868` (Initial commit): PASS
- `cb685ab` (add blue styling): PASS
- `5aa1c7b` (change to red): **FAIL** ← first failing commit
- `c7ab311` (add theme title): FAIL (inherits the break)
Since the tests pass through `cb685ab` and first fail at `5aa1c7b`, the bug was introduced in that commit. The subsequent commit (`c7ab311`) continues to fail simply because it's built on top of the broken code — it didn't introduce a new bug itself.
8016da7
JSON Schema
Structured Output
(raw) {"commit":"8016da7"}
151e31f change to red
6b8f704
JSON Schema
Structured Output
(raw) {"commit":"6b8f704"}
2545678 change to red
45773f2
JSON Schema
Structured Output
(raw) {"commit":"45773f2"}
**690a68e** (change to red)
This is the first commit where the tests fail (transitioning from PASS to FAIL), indicating it introduced the bug. The subsequent commit `1054c57` also fails, but that's likely because it's built on top of the already-broken code from `690a68e`, rather than introducing a new issue itself.
735c92a
JSON Schema
Structured Output
(raw) {"commit":"735c92a"}
The bad commit is **63021b5** ("change to red").
**Reasoning:** Using bisection logic on the test results:
- `fe9fa51` (Initial commit): PASS
- `29c1876` (add blue styling): PASS
- `63021b5` (change to red): **FAIL** ← first failure
- `5e4b8c4` (add theme title): FAIL (still broken, inherited from parent)
Since the tests pass through `29c1876` and first fail at `63021b5`, this commit introduced the breaking change. The subsequent commit `5e4b8c4` continues to fail simply because it builds on top of the already-broken code — it didn't introduce a new bug.
61c3ce7
JSON Schema
Structured Output
(raw) {"commit":"61c3ce7"}
c57735f
The first commit that caused the test to fail is `0e9e4bf` ("change to red"). This is the bad commit that introduced the bug.
The first commit that caused the test to fail is `9188c53` ("change to red"). This is the bad commit that introduced the bug.
Answer: 9188c53
The first commit that caused a test failure is `9df4203` ("change to red"). This is the bad commit that introduced the bug.
0e1b9a7
(change to red)
c5724de
JSON Schema
Structured Output
(raw) {
"commit": "c5724de"
}
7482c87
f9845a7 change to red
JSON Schema
Structured Output
(raw) {
"commit": "f9845a7 change to red"
}
5f57729
535daad
JSON Schema
Structured Output
(raw) {
"commit": "535daad"
}
aa649c9
c808f99
JSON Schema
Structured Output
(raw) {
"commit": "c808f99"
}
acf48a7
47b6568
JSON Schema
Structured Output
(raw) {
"commit": "47b6568"
}
b29e248
d5c4eaf
JSON Schema
Structured Output
(raw) {
"commit": "d5c4eaf"
}
1356ba0
904af84
JSON Schema
Structured Output
(raw) {"commit":"904af84"}
fbf4ea8
427154a
JSON Schema
Structured Output
(raw) { "commit": "427154a" }
c6038e6
a20ae2a
JSON Schema
Structured Output
(raw) {"commit":"a20ae2a"}
85c4ef3
d2bfdb4
JSON Schema
Structured Output
(raw) { "commit": "d2bfdb4" }
e87a84d
f5bc2b5
JSON Schema
Structured Output
(raw) { "commit": "f5bc2b5" }
2d539c9
1e94928
JSON Schema
Structured Output
(raw) {"commit":"1e94928"}
27f8505
The bad commit is **4d380ea** - this is the first commit where the test fails, meaning it introduced the bug.
All commits after it also fail, confirming that the bug was introduced at this point.
Answer: `4d380ea`
24fa924
JSON Schema
Structured Output
(raw) { "commit": "24fa924" }
The first commit that fails is `76f38b8` ("change to red"), so that commit introduced the bug.
76f38b8
bd36ef6
JSON Schema
Structured Output
(raw) {"commit":"bd36ef6"}
da5cbff
496da64
JSON Schema
Structured Output
(raw) {
"commit": "496da64"
}
e5e64e8
1b162f4
JSON Schema
Structured Output
(raw) {"commit":"1b162f4"}
7bd8405
c093d95
JSON Schema
Structured Output
(raw) {"commit": "c093d95"}
Based on the test results, the bad commit is:
**c3ea54c** (or "change to red")
This is the first commit where the tests start failing, going from PASS on "add blue styling" to FAIL on "change to red". The subsequent commit "add theme title" also fails, but that's because it's built on top of the already-broken commit.
070b833
JSON Schema
Structured Output
(raw) {"commit": "070b833"}
38f9f02
36cc721
JSON Schema
Structured Output
(raw) {"commit": "36cc721"}
71d9b98
d52dca1
JSON Schema
Structured Output
(raw) { "commit": "d52dca1" }
cb9f289
47e1ba0
JSON Schema
Structured Output
(raw) { "commit": "47e1ba0" }
e367dfa
6789930
JSON Schema
Structured Output
(raw) {"commit": "6789930"}
3e37b39
8e353bb
JSON Schema
Structured Output
(raw) { "commit": "8e353bb" }
b2963af
7d5aa45
JSON Schema
Structured Output
(raw) { "commit": "7d5aa45" }
d88ba89
d80d121
JSON Schema
Structured Output
(raw) {
"commit": "d80d121"
}
9697e1b
a8c076e
JSON Schema
Structured Output
(raw) {
"commit": "a8c076e"
}
cce77e6
54ce797
JSON Schema
Structured Output
(raw) {"commit": "54ce797"}
The bad commit is **91d656a** (or "change to red").
4bb42a6
JSON Schema
Structured Output
(raw) {
"commit": "4bb42a6"
}
0c41e01
6036109
JSON Schema
Structured Output
(raw) {
"commit": "6036109"
}
The bad commit is **5e64bc8** (or "change to red").
**Reasoning:**
The commits `2e6d595` and `6155587` passed. The first commit that resulted in a FAIL was `5e64bc8`, indicating that this is where the bug was introduced.
709ca8a
JSON Schema
Structured Output
(raw) {"commit": "709ca8a"}
The bad commit that introduced the bug is **5b1b4af** (commit subject: "change to red").
**Reasoning:**
* `387c803` (add blue styling) passed the test.
* `5b1b4af` (change to red) failed the test.
Since the build was passing before `5b1b4af` and failing immediately upon its application, `5b1b4af` is the commit that broke the build.
1143d36
JSON Schema
Structured Output
(raw) {
"commit": "1143d36"
}
0130db2
7fe4f7f
JSON Schema
Structured Output
(raw) {
"commit": "7fe4f7f"
}
The bad commit is **c2ce105** (change to red).
1c4f3b4
JSON Schema
Structured Output
(raw) {
"commit": "1c4f3b4"
}
The bad commit that introduced the bug is **35c09ed** (or the subject line **change to red**), as it is the first commit in the chronological history to fail the tests (exit code 1).
a877687
JSON Schema
Structured Output
(raw) {"commit":"a877687"}
9586d32
d236955
JSON Schema
Structured Output
(raw) {"commit": "d236955"}
The bad commit that introduced the bug is **4addb89** (change to red).
dcb21b0
JSON Schema
Structured Output
(raw) {"commit":"dcb21b0"}
5c00066
fb1470b
JSON Schema
Structured Output
(raw) {"commit": "fb1470b"}
5b916b8
f5460e3
JSON Schema
Structured Output
(raw) {"commit":"f5460e3"}
4dae1a5
f4cb29b
JSON Schema
Structured Output
(raw) {
"commit": "f4cb29b"
}
9c00768
65f3608
JSON Schema
Structured Output
(raw) {
"commit": "65f3608"
}
1504592
9fd4e55
JSON Schema
Structured Output
(raw) {
"commit": "9fd4e55"
}
b83065c
6dae415
JSON Schema
Structured Output
(raw) {"commit":"6dae415"}
0bceb13
fbf672e
JSON Schema
Structured Output
(raw) {"commit":"fbf672e"}
The commit that first introduced the bug is **b3f758a** (change to red).
f19588c
JSON Schema
Structured Output
(raw) {"commit":"f19588c"}
0b81623
9cf1ba9
JSON Schema
Structured Output
(raw) {"commit":"9cf1ba9"}
0d0b4b5
96478f2
JSON Schema
Structured Output
(raw) {"commit":"96478f2"}
07472d8
1701bd9
JSON Schema
Structured Output
(raw) {"commit":"1701bd9"}
The bad commit that introduced the bug is **569aa19** (or "change to red").
d2afd92
JSON Schema
Structured Output
(raw) {"commit":"d2afd92"}
fdc314d
c046a1d
JSON Schema
Structured Output
(raw) {
"commit": "c046a1d"
}
**8baf234** (or "change to red")
8cecd87
JSON Schema
Structured Output
(raw) {"commit":"8cecd87"}
**e66567d** (or "change to red")
eec191c
JSON Schema
Structured Output
(raw) {"commit":"eec191c"}
aec8161
dd7c8dc
JSON Schema
Structured Output
(raw) {"commit":"dd7c8dc"}
114e3d6
617f11f
JSON Schema
Structured Output
(raw) {"commit":"617f11f"}
a00bb55
8fa39c0
JSON Schema
Structured Output
(raw) {"commit":"8fa39c0"}
78ff1b1
77d2814
JSON Schema
Structured Output
(raw) {"commit":"77d2814"}
cb2fd41
d689f09
JSON Schema
Structured Output
(raw) {"commit":"d689f09"}
10fc87d
2636039
JSON Schema
Structured Output
(raw) {"commit": "2636039"}
2edf92c
bffc5d3
JSON Schema
Structured Output
(raw) {
"commit": "bffc5d3"
}
e9a95ed
6379a24
JSON Schema
Structured Output
(raw) {
"commit": "6379a24"
}
d606a19
a930a71
JSON Schema
Structured Output
(raw) { "commit": "a930a71" }
fff2324
44c34e1
JSON Schema
Structured Output
(raw) {
"commit": "44c34e1"
}
6132080
ced831d
JSON Schema
Structured Output
(raw) {"commit": "ced831d"}
24431d9
8bb66cb
JSON Schema
Structured Output
(raw) {"commit": "8bb66cb"}
2a3099c
cf305ee
JSON Schema
Structured Output
(raw) {"commit": "cf305ee"}
0761eec
81170dc
JSON Schema
Structured Output
(raw) {
"commit": "81170dc"
}
635742f
caa71a1
JSON Schema
Structured Output
(raw) {"commit": "caa71a1"}
The test results indicate that both commit `bcb982b` ("change to red") and commit `50266dc` ("add theme title") caused failures. Since the question asks for the commit that introduced the bug, and `bcb982b` appears earlier in the test results than `50266dc`, it is the first commit that broke the build.
**Commit hash:** `bcb982b`
**Commit subject line:** `change to red`
8401ec6
JSON Schema
Structured Output
(raw) { "commit": "8401ec6" }
5912718
22f8282
60775fc
JSON Schema
Structured Output
(raw) {"commit":"60775fc"}
bc7ee31
dc90c7f change to red
JSON Schema
Structured Output
(raw) {
"commit": "dc90c7f change to red"
}
54f6902
d4c2310
JSON Schema
Structured Output
(raw) {"commit":"d4c2310"}
The bad commit hash (first 7 characters) is **ebcd0ff**.
**Reasoning:**
- The test results show commits in chronological order (oldest first): `49f32ec` → `c905c78` → `ebcd0ff` → `00ea063`.
- `49f32ec` (Initial commit) and `c905c78` (add blue styling) both PASS.
- `ebcd0ff` (change to red) is the first commit that FAILS the test.
- `00ea063` (add theme title) also FAILS, but it occurs *after* `ebcd0ff` in history. Since the build broke at `ebcd0ff`, `00ea063` depends on it (it's newer), so the bug was introduced by the first failing commit (`ebcd0ff`).
- The commit subject line for `ebcd0ff` is "change to red", which uniquely identifies it. However, the instruction asks for the commit hash (first 7 chars) or subject line. The safest and most precise answer per "first commit that broke the build" is the hash `ebcd0ff`.
Thus, the bad commit hash (first 7 chars) is `ebcd0ff`.
> Note: While `00ea063` also fails tests, it cannot be the bad commit because it comes *after* `ebcd0ff` in history; the build broke at `ebcd0ff`, so `ebcd0ff` is the culprit. The test failure for `00ea063` is a consequence of inheriting the broken state from `ebcd0ff`.
**Answer: ebcd0ff**
8f43296
JSON Schema
Structured Output
(raw) {
"commit": "8f43296"
}
109ffaa
5150281 change to red
JSON Schema
Structured Output
(raw) {
"commit": "5150281 change to red"
}
4e97328
1e637c9
JSON Schema
Structured Output
(raw) {"commit": "1e637c9"}
a64f3aa
3b304a6
JSON Schema
Structured Output
(raw) {
"commit": "3b304a6"
}
f03a4a9
5164408
JSON Schema
Structured Output
(raw) {"commit": "5164408"}
fddcac5
8943447
JSON Schema
Structured Output
(raw) {"commit": "8943447"}
8bf373d change to red
26d89a8
JSON Schema
Structured Output
(raw) {
"commit": "26d89a8"
}
cdd8a4e
fd33aaf
JSON Schema
Structured Output
(raw) {"commit": "fd33aaf"}
e37eec6
537a33b
JSON Schema
Structured Output
(raw) {
"commit": "537a33b"
}
To identify the **bad commit**, let's analyze the information step-by-step:
### Step 1: Review the Commit History (Newest First)
- `bb567ee` — Add theme title — **FAIL**
- `6cf2d51` — Change to red — **FAIL**
- `02b7179` — Add blue styling — **PASS**
- `b2dcb89` — Initial commit — **PASS**
### Step 2: Review Test Results (Oldest First)
- `b2dcb89` — PASS
- `02b7179` — PASS
- `6cf2d51` — FAIL
- `bb567ee` — FAIL
The tests run in order from oldest to newest, matching the commit history from newest to oldest.
### Step 3: Determine Which Commit Introduced the Bug
- The **first failing test** occurs at commit `6cf2d51` ("Change to red").
- This means that **commit `6cf2d51`** is the first commit where the build fails.
- The subsequent commit (`bb567ee`) also fails, but since `6cf2d51` is earlier and causes failure, it is the **first bad commit**.
---
**Answer:**
`6cf2d51`
The first `FAIL` is the culprit.
* `e4a4f6f Initial commit` - PASS
* `5ace0cc add blue styling` - PASS
* **`a5be8b3 change to red` - FAIL <- first bad**
* `a647b75 add theme title` - FAIL - inherits bad
Bad commit:
> **Hash: `a5be8b3`**
> **Subject: `change to red`**
92a6983
JSON Schema
Structured Output
(raw) {
"commit": "92a6983"
}
The bug was introduced in:
**`53d8ef3 change to red`**
* `55151f7 Initial commit` - PASS
* `2546029 add blue styling` - PASS <- last good
* **`53d8ef3 change to red` - FAIL <- first bad / bad commit**
* `fbda871 add theme title` - FAIL
61c1433
JSON Schema
Structured Output
(raw) {
"commit": "61c1433"
}
The first `FAIL` after the last `PASS` is the culprit:
* `180ed91` PASS
* `16be009` PASS <- last good
* `1182c71` **FAIL** <- first bad
* `5fc1a49` FAIL
Bad commit is:
```
1182c71 change to red
```
e56bca4
JSON Schema
Structured Output
(raw) {
"commit": "e56bca4"
}
The first `FAIL` is the commit that introduced the bug.
* `37ac687` PASS
* `cfeff6f` PASS
* **`68b2d7d` FAIL** <- first failure
* `375b6ea` FAIL
Bad commit is:
> **Hash: `68b2d7d`**
> **Subject: `change to red`**
2e03619
JSON Schema
Structured Output
(raw) {
"commit": "2e03619"
}
The bug was introduced by the first `FAIL` in the history:
* `acb878e` - PASS
* `e4f63d2` - PASS
* **`48f6757` - FAIL** <- first failure
* `1cba7df` - FAIL
Bad commit:
> **Hash: `48f6757`**
> **Subject: `change to red`**
2796e2f
JSON Schema
Structured Output
(raw) {"commit":"2796e2f"}
4ea79a4
296bff9
JSON Schema
Structured Output
(raw) {"commit":"296bff9"}
7a0780d
f7cc01f
JSON Schema
Structured Output
(raw) {"commit": "f7cc01f"}
659d443
44b193c
JSON Schema
Structured Output
(raw) {"commit": "44b193c"}
d3d4a6d
f145f30
JSON Schema
Structured Output
(raw) {"commit": "f145f30"}
20596a6
a03b081
JSON Schema
Structured Output
(raw) {
"commit": "a03b081"
}
f11e4f4
16f0fcb
8a1efa8
JSON Schema
Structured Output
(raw) {
"commit": "8a1efa8"
}
7b97a94
2e534ea
JSON Schema
Structured Output
(raw) {
"commit": "2e534ea"
}
48778b9 (change to red)
c5cb6ed
JSON Schema
Structured Output
(raw) {"commit":"c5cb6ed"}
3fada4a (change to red)
9164a1d
JSON Schema
Structured Output
(raw) {
"commit": "9164a1d"
}
9789af6
9b54912
JSON Schema
Structured Output
(raw) {"commit":"9b54912"}
413692e
The test was passing after `dffd881` (add blue styling) but started failing after `413692e` (change to red), making that the bad commit that introduced the bug.
3204703
JSON Schema
Structured Output
(raw) {"commit":"3204703"}
The bad commit is: **2fe6f05** (change to red)
This is the first commit in the history where the tests transitioned from PASS to FAIL, indicating it introduced the bug.
0afe7a0
JSON Schema
Structured Output
(raw) { "commit": "0afe7a0" }
56fcacb
90c512e
JSON Schema
Structured Output
(raw) {"commit": "90c512e"}
The bad commit is **6f003b5** (change to red).
This is the first commit where the test transitioned from PASS to FAIL. The subsequent commit (4e7e094) also fails, but that's a consequence of the bug already being present in 6f003b5.
a75e860
JSON Schema
Structured Output
(raw) { "commit": "a75e860"}
a8cccc2
a595b8d
JSON Schema
Structured Output
(raw) {"commit": "a595b8d"}
Based on the git commit history and test results, the bad commit that introduced the bug is:
`c3211ab change to red`
This is because:
1. The test passed on commit `f24a1c8` (add blue styling)
2. The test failed on commit `c3211ab` (change to red)
3. The failure persisted in the subsequent commit `44b65b0` (add theme title)
The commit `c3211ab` is the first one where the test failed, indicating that's where the bug was introduced.
a1b1901
JSON Schema
Structured Output
(raw) {"commit": "a1b1901"}
The bad commit is the first one where the build broke. The test results show that commit `ce47a9a` (add blue styling) passed, but commit `6f554dd` (change to red) failed. This is the first failing commit, meaning it introduced the bug.
6f554dd
1e42c96
JSON Schema
Structured Output
(raw) {"commit": "1e42c96"}
The test results show that the build was passing at commit `e263ac0` (add blue styling) and first started failing at commit `f8d76a8` (change to red). This indicates that the bug was introduced in the "change to red" commit.
The bad commit is: f8d76a8
8ffbf53
JSON Schema
Structured Output
(raw) {"commit": "8ffbf53"}
The first commit that caused a test failure is **71da175** (subject: "change to red"), as the build passed for all prior commits (`ec510d8` and `5b90d4a`) and failed starting here.
Answer: `71da175`
e850aa8
JSON Schema
Structured Output
(raw) {"commit": "e850aa8"}
The bad commit is `22c9026 change to red`.
This is because:
1. The test passes for `e9667d8 add blue styling`
2. The test first fails at `22c9026 change to red`
3. All subsequent commits (`616d29b add theme title`) also fail, which is expected since the bug was already introduced in `22c9026`
The commit that introduced the bug is therefore `22c9026` (or "change to red").
0fb32f4
JSON Schema
Structured Output
(raw) {"commit": "0fb32f4"}
The first failing commit is **ebc674d change to red**, as it is the first commit in the history where the test transitions from PASS (8e23522) to FAIL (ebc674d). All subsequent commits also fail, confirming this is the source of the bug.
ebc674d
bc6a317
JSON Schema
Structured Output
(raw) {"commit": "bc6a317"}
f76de7f
90412c8
JSON Schema
Structured Output
(raw)
{
"commit": "90412c8"
}
6e4e3d8
4d7e2f6
JSON Schema
Structured Output
(raw) {"commit":"4d7e2f6"}
ed7c448
c5e47a6 change to red
JSON Schema
Structured Output
(raw)
{
"commit": "c5e47a6 change to red"
}
8082941
0f3bcd2
JSON Schema
Structured Output
(raw) {"commit":"0f3bcd2"}
325825a change to red
01d8630 change to red
JSON Schema
Structured Output
(raw) {"commit": "01d8630 change to red"}
**50847b7** — `change to red`
1e42208
JSON Schema
Structured Output
(raw) {"commit":"1e42208"}
436f47f
JSON Schema
Structured Output
(raw) { "commit": "436f47f" }
7f1bf18
a47394d
JSON Schema
Structured Output
(raw) { "commit": "a47394d" }
**Bad commit: `0dce02c` ("change to red")**
**Reasoning:** Walking through the commits from oldest to newest:
- `ad4b7d6` (Initial commit) → PASS
- `754cc8e` (add blue styling) → PASS
- `0dce02c` (change to red) → **FAIL** ← first failure appears here
- `96cf7b8` (add theme title) → FAIL
Since `754cc8e` passes and its immediate child `0dce02c` is the first commit to fail, the bug was introduced in **`0dce02c` ("change to red")**. The later commit `96cf7b8` also fails, but only because it inherits the broken state — it didn't introduce the bug itself.
**Bad commit: `ddfaee8` — "change to red"**
**Reasoning:**
Working through the history chronologically (oldest → newest):
| Commit | Subject | Result |
|--------|---------|--------|
| b76bde3 | Initial commit | ✅ PASS |
| c18ee8c | add blue styling | ✅ PASS |
| ddfaee8 | change to red | ❌ FAIL |
| b693b75 | add theme title | ❌ FAIL |
The last known-good commit is `c18ee8c` and the first failing commit is `ddfaee8`. Since the test passed at `ddfaee8`'s parent but fails at `ddfaee8` itself, this commit is the one that introduced the bug. The subsequent commit `b693b75` also fails, but that's because it inherits the broken state — it didn't introduce the bug itself.
**Bad commit: `f865329` (change to red)**
The bisect logic:
- `df367fb` (Initial commit) — PASS ✅
- `44e9c1e` (add blue styling) — PASS ✅
- `f865329` (change to red) — **FAIL** ❌ ← first failure
- `efdcd25` (add theme title) — FAIL ❌ (inherits the bug)
Since `44e9c1e` passes and `f865329` is the first commit where the build breaks, **`f865329` "change to red"** is the commit that introduced the bug.
**5aaf0c9** — "change to red"
The commit `2945322` and `9d9c7bc` both pass, while `5aaf0c9` is the first commit to fail. Since every commit after it also fails, `5aaf0c9` ("change to red") is the commit that introduced the bug.
**Bad commit: `1f70bf0` (change to red)**
Reasoning: Following the test results chronologically, `f44ba99` and `b46aabc` both pass. The failure first appears at `1f70bf0`, and all subsequent commits also fail. Since `b46aabc` (the commit immediately before it) passes, `1f70bf0` is the commit that introduced the bug — in bisect terms, it's the "first bad commit."
**Bad commit: `6dbf2de` ("change to red")**
**Reasoning:**
- `1d8f904` (Initial commit): PASS
- `85006fa` (add blue styling): PASS ← last known good commit
- `6dbf2de` (change to red): **FAIL** ← first failing commit
- `f665d79` (add theme title): FAIL
Since `85006fa` passes and `6dbf2de` is the first commit to fail, the bug was introduced in commit **`6dbf2de`** ("change to red"). The later commit `f665d79` also fails, but it only inherited the bug — it didn't cause it.
The bad commit is **27d37da** ("change to red").
This is the first commit where the test transitions from PASS to FAIL: `f9f5733` passes, and `27d37da` fails, so the bug was introduced in `27d37da`.
**Bad commit: `d16efc5` — "change to red"**
**Reasoning:**
Walking through the commits in chronological order:
| Commit | Subject | Result |
|--------|---------|--------|
| 960e7e7 | Initial commit | ✅ PASS |
| ba6ae71 | add blue styling | ✅ PASS |
| d16efc5 | change to red | ❌ FAIL |
| 4d64f74 | add theme title | ❌ FAIL |
The build passes through `ba6ae71` and starts failing at `d16efc5`. Since `d16efc5` is the **first** commit where the test fails (and all subsequent commits continue to fail), it is the commit that introduced the bug — this is exactly what a `git bisect` would identify as the first bad commit.
**Bad commit: `93a5edd`** ("change to red")
**Reasoning:**
- `86807ce` (Initial commit) → PASS
- `81698c2` (add blue styling) → PASS
- `93a5edd` (change to red) → **FAIL** ← first failing commit
- `a772405` (add theme title) → FAIL
Since `81698c2` passes and its immediate child `93a5edd` is the first commit to fail, the bug was introduced in **`93a5edd`** ("change to red"). The subsequent commit `a772405` also fails simply because it inherits the broken state.
**Bad commit: `18d01c2` — "change to red"**
**Reasoning:**
- `078210e` (Initial commit): PASS ✅
- `5a9a680` (add blue styling): PASS ✅
- `18d01c2` (change to red): FAIL ❌ ← first failure
- `5b03c5b` (add theme title): FAIL ❌
The build passed on the initial commit and the "add blue styling" commit, but started failing at `18d01c2`. Since `5b03c5b` also fails, it's simply inheriting the bug introduced by its parent. The commit that **introduced** the bug is `18d01c2` ("change to red").
a2b8fa7 (change to red)
ebabc6f
JSON Schema
Structured Output
(raw) {
"commit": "ebabc6f"
}
9202a60
426d608
JSON Schema
Structured Output
(raw) {"commit":"426d608"}
8ceb230
aae9b40
JSON Schema
Structured Output
(raw) {
"commit": "aae9b40"
}
cefa0ac change to red
f75fb8a
c47f6d6
JSON Schema
Structured Output
(raw) {
"commit": "c47f6d6"
}
de8162a
02503ac
JSON Schema
Structured Output
(raw) {
"commit": "02503ac"
}
1000f5a
7b30bf4
JSON Schema
Structured Output
(raw) {
"commit": "7b30bf4"
}
5a6ce15 change to red
fc3142b
JSON Schema
Structured Output
(raw) {"commit": "fc3142b"}
The bad commit is the first one that failed: **a96a3c8 change to red**
- 838d343: PASS
- b585e2c: PASS
- a96a3c8: FAIL ← First failure
- 2a2eef6: FAIL
Since the test passes before this commit and fails starting here, **a96a3c8** introduced the bug.
**Answer:** a96a3c8 change to red
b43b3c7
JSON Schema
Structured Output
(raw) {"commit": "b43b3c7"}
2e482f5
9073a5c
JSON Schema
Structured Output
(raw) {
"commit": "9073a5c"
}
4fca44d
5670571
JSON Schema
Structured Output
(raw) {"commit":"5670571"}
bed10af
aa2641a
JSON Schema
Structured Output
(raw) {"commit":"aa2641a"}
210d264
535f691
JSON Schema
Structured Output
(raw) {"commit":"535f691"}
a8e2010
6658da6
JSON Schema
Structured Output
(raw) {"commit":"6658da6"}
36f3944
2519582
JSON Schema
Structured Output
(raw) {"commit":"2519582"}
b8f4116
b580d79
JSON Schema
Structured Output
(raw) {"commit":"b580d79"}
c15fa94
a4857d9
JSON Schema
Structured Output
(raw) {"commit":"a4857d9"}
119f33c
151bb3e
JSON Schema
Structured Output
(raw) {"commit":"151bb3e"}
83b73fe
bb0b3ca
JSON Schema
Structured Output
(raw) {"commit":"bb0b3ca"}
cb58f9f
8bb7019
JSON Schema
Structured Output
(raw) {"commit":"8bb7019"}
40cc8bb
b860e49
JSON Schema
Structured Output
(raw) {"commit":"b860e49"}
5467804
b2b012f
JSON Schema
Structured Output
(raw) {"commit":"b2b012f"}
448dfd3
75b535f
JSON Schema
Structured Output
(raw) {"commit":"75b535f"}
a043231
8e3337b
JSON Schema
Structured Output
(raw) {"commit":"8e3337b"}
c2a80b2
5a3a16e
JSON Schema
Structured Output
(raw) {"commit":"5a3a16e"}
61d672d
3e0d216
JSON Schema
Structured Output
(raw) {"commit":"3e0d216"}
984a317
597691e
JSON Schema
Structured Output
(raw) {"commit":"597691e"}
569eb9b
1f60aff
JSON Schema
Structured Output
(raw) {"commit":"1f60aff"}
01454bf
acaa6b9
JSON Schema
Structured Output
(raw) {"commit":"acaa6b9"}
3494a61
4a1baa2
JSON Schema
Structured Output
(raw) {"commit":"4a1baa2"}
678a83f
f7adde6
JSON Schema
Structured Output
(raw) {"commit":"f7adde6"}
cc014d0
77a701e
JSON Schema
Structured Output
(raw) {"commit":"77a701e"}
b73dc57
fe4a765
JSON Schema
Structured Output
(raw) {"commit":"fe4a765"}
1dd7dce
4ed99b0
JSON Schema
Structured Output
(raw) {"commit":"4ed99b0"}
7d083dd
bedd313
JSON Schema
Structured Output
(raw) {"commit":"bedd313"}
1164477
026088a
JSON Schema
Structured Output
(raw) {"commit":"026088a"}
b928580
2448483
JSON Schema
Structured Output
(raw) {"commit":"2448483"}
124a9d9
b0af8f5
JSON Schema
Structured Output
(raw) {"commit":"b0af8f5"}
d52f76b
7ac9318
JSON Schema
Structured Output
(raw) {"commit":"7ac9318"}
317071a
3a6d731
JSON Schema
Structured Output
(raw) {"commit":"3a6d731"}
4e84712
e561bad
JSON Schema
Structured Output
(raw) {"commit":"e561bad"}
11eccf9
eec5d9c
JSON Schema
Structured Output
(raw) {"commit":"eec5d9c"}
40b57f9
059de6d
JSON Schema
Structured Output
(raw) {"commit":"059de6d"}
c688923
932447d
JSON Schema
Structured Output
(raw) {"commit":"932447d"}
de9ac28
09f9a69
JSON Schema
Structured Output
(raw) {"commit":"09f9a69"}
0c833ad
d83e684
JSON Schema
Structured Output
(raw) {"commit":"d83e684"}
e9454b8
a08203c
JSON Schema
Structured Output
(raw) {"commit":"a08203c"}
ecb60b2
96ec565
JSON Schema
Structured Output
(raw) {"commit":"96ec565"}
aadb148
5a0bf23
JSON Schema
Structured Output
(raw) {"commit":"5a0bf23"}
b8da97d
54c5130
JSON Schema
Structured Output
(raw) {"commit":"54c5130"}
80d8e49
c3a57e9
JSON Schema
Structured Output
(raw) {"commit":"c3a57e9"}
038cd44
40e12a6
JSON Schema
Structured Output
(raw) {"commit":"40e12a6"}
eaa29d2
cd78ba0
JSON Schema
Structured Output
(raw) {"commit":"cd78ba0"}
a77ab81
f1dcf28
JSON Schema
Structured Output
(raw) {"commit":"f1dcf28"}
877a6f3
0e0283b
JSON Schema
Structured Output
(raw) {"commit":"0e0283b"}
d3e61e5
d9fc32a
JSON Schema
Structured Output
(raw) {"commit":"d9fc32a"}
6383667
32d78e1
JSON Schema
Structured Output
(raw) {"commit":"32d78e1"}
2f56a63
d198833
JSON Schema
Structured Output
(raw) {"commit":"d198833"}
a883796
cc5cafb
JSON Schema
Structured Output
(raw) {"commit":"cc5cafb"}
e9aafc3
a34ea68
JSON Schema
Structured Output
(raw) {"commit":"a34ea68"}
12473f1
ae64677
JSON Schema
Structured Output
(raw) {"commit":"ae64677"}
1081ef5
da1c21c
JSON Schema
Structured Output
(raw) {"commit":"da1c21c"}
1855951
8bbf7a7
JSON Schema
Structured Output
(raw) {"commit":"8bbf7a7"}
a8426bf
8a6e914
JSON Schema
Structured Output
(raw) {
"commit": "8a6e914"
}
bcf6dc8 (change to red)
7724380 change to red
JSON Schema
Structured Output
(raw) { "commit": "7724380 change to red" }
2587fff (change to red)
8c4dcdf
JSON Schema
Structured Output
(raw) { "commit": "8c4dcdf" }
04c11d0 – change to red
4c8dfaf
JSON Schema
Structured Output
(raw) { "commit": "4c8dfaf" }
c9b425 (the “change to red” commit) introduced the build break.
0b3b6f5
JSON Schema
Structured Output
(raw) { "commit": "0b3b6f5" }
d9f3e4e (subject: “change to red”)
4c658d4
JSON Schema
Structured Output
(raw) { "commit": "4c658d4" }
415ecfc
710d666
1e95c3f
JSON Schema
Structured Output
(raw) { "commit" : "1e95c3f" }
The bad commit is **0ee4fe2** (commit subject: "change to red"). This commit introduced the test failure, as the build was passing before it but failed afterward. The subsequent commit (8e1b0b8) did not resolve the issue, confirming the bug originated in `0ee4fe2`.
a21a481
JSON Schema
Structured Output
(raw) {"commit": "a21a481"}
The bad commit that introduced the bug is **d031469** ("change to red"). This is the first commit that caused the test to fail, as the initial commit and the "add blue styling" commit both pass, while subsequent commits ("add theme title") also fail due to the break caused by this commit.
f2c03ba
JSON Schema
Structured Output
(raw) {"commit": "f2c03ba"}
69826e5
36dad23
JSON Schema
Structured Output
(raw) {
"commit": "36dad23"
}
The bad commit is **0d42e1e**, as it's the earliest commit where the tests transitioned from passing to failing. Subsequent commits (including b76a6d5) also failed, but the root cause lies with this commit introducing the breaking change.
e387f56
JSON Schema
Structured Output
(raw) {"commit": "e387f56"}
5a23cbc
b53462b
JSON Schema
Structured Output
(raw) {"commit": "b53462b"}
01dc5d5
9584a58
JSON Schema
Structured Output
(raw) {
"commit": "9584a58"
}
The bad commit is identified by analyzing the test results. The Initial commit (7a88be3) and its subsequent commit (cc9d5fa) passed, but the next commit (e1ee0fb "change to red") caused the build to fail. Since the failure started here and persisted in later commits, **e1ee0fb** introduced the bug.
e1ee0fb
97ca0b5
JSON Schema
Structured Output
(raw) {"commit": "97ca0b5"}
The bad commit that introduced the build failure is **d8982c7**.
**Explanation:**
- The test results show that all commits up to `3ae9b30` pass.
- The commit `d8982c7` ("change to red") is the first one that causes a test failure (exit code 1).
- Subsequent commits (e.g., `d521198`) inherit the broken state but do not fix it.
- Therefore, `d8982c7` is the **first bad commit** that introduced the bug.
Answer: `d8982c7`
875f665
JSON Schema
Structured Output
(raw) {"commit": "875f665"}
ebf9505
4fc46b5
JSON Schema
Structured Output
(raw) {
"commit": "4fc46b5"
}
The bad commit is **ea8a3ca** (subject line: "change to red").
- The test results show that the build passed for commits up to `73238e1` ("add blue styling"), but failed starting with `ea8a3ca`.
- Since `ea8a3ca` is the first commit that introduced the failure, it is the culprit.
c890839
JSON Schema
Structured Output
(raw) {"commit": "c890839"}
Based on the test results, I can see the pattern:
- **9e426a6** (Initial commit): PASS
- **a1214be** (add blue styling): PASS
- **cd65a33** (change to red): FAIL ← Tests start failing here
- **d44c547** (add theme title): FAIL
The bad commit is **cd65a33** (change to red), as this is the first commit where the tests started failing. The subsequent commit didn't fix the issue.
db58774
JSON Schema
Structured Output
(raw) {"commit": "db58774"}
Looking at the test results chronologically:
1. **a61d066** (Initial commit): PASS
2. **bc87646** (add blue styling): PASS
3. **da074d3** (change to red): FAIL ← First failure
4. **f1c8738** (add theme title): FAIL
The bad commit is **da074d3** - "change to red". This is the first commit where the tests start failing, indicating it introduced the bug.
a6ac108
JSON Schema
Structured Output
(raw) {"commit": "a6ac108"}
Looking at the test results, I can see that:
- Commit 75dbe45 (Initial commit): PASS
- Commit 601389f (add blue styling): PASS
- Commit bbd6d5a (change to red): FAIL
- Commit 309ec29 (add theme title): FAIL
The first commit where the tests fail is **bbd6d5a "change to red"**. This is the commit that introduced the bug.
166e35e
JSON Schema
Structured Output
(raw) {"commit": "166e35e"}
Looking at the test results, I can see that:
1. Commit `77c24e6` (Initial commit): PASS
2. Commit `e178e9f` (add blue styling): PASS
3. Commit `6431d1c` (change to red): FAIL
4. Commit `1685efd` (add theme title): FAIL
The build passed after `e178e9f` but failed after `6431d1c`. This means commit `6431d1c` (change to red) introduced the bug.
**Answer: 6431d1c**
e10b255
JSON Schema
Structured Output
(raw) {"commit": "e10b255"}
Looking at the test results, I can identify which commit introduced the bug:
- **e24a115 Initial commit**: PASS
- **c775e82 add blue styling**: PASS
- **4588b00 change to red**: FAIL
- **55b534c add theme title**: FAIL
The tests were passing until commit `c775e82`. Starting with commit `4588b00`, the tests began failing and continued to fail for subsequent commits.
**Bad commit: 4588b00** (the commit "change to red" introduced the bug)
b9c8b8f
JSON Schema
Structured Output
(raw) {"commit": "b9c8b8f"}
The bad commit is **4f34931** with the subject line **"change to red"**.
This is determined by the test results:
- `b178916` (add blue styling) → **PASS** ✓
- `4f34931` (change to red) → **FAIL** ✗
The commit `4f34931` is the first one in history to fail the build test, while all commits before it pass.
18e3607
JSON Schema
Structured Output
(raw)
{"commit":"18e3607"}
The bad commit is **edcf018** (subject: "change to red").
**Reasoning:** The test results show that the build was passing at commit `018553e` ("add blue styling") and then started failing at the very next commit, `edcf018` ("change to red"). This makes `edcf018` the first commit that introduced the bug.
</think>
The bad commit is **edcf018** ("change to red").
The commit before it (`018553e` – "add blue styling") still passed, and the first failing commit is `edcf018` ("change to red"), which means that commit is the one that introduced the bug.
2277300
JSON Schema
Structured Output
(raw)
{"commit":"2277300"}
4d486a3
c09a0ce
JSON Schema
Structured Output
(raw)
{"commit":"c09a0ce"}
The bad commit is **ebd7199** with the subject line **"change to red"**.
It is the first commit in the sequence that caused the test to transition from PASS to FAIL. The commits before it (a9246f1 and 49d2d24) both passed, and every commit after it (including the next one, 3e590b4) fails, confirming that "change to red" introduced the bug.
5139e66
JSON Schema
Structured Output
(raw)
{"commit":"5139e66"}
The bad commit is **a03b13d** ("change to red").
This is the first commit in the history (newest-first) where the test transitioned from PASS to FAIL. The previous commit `96f2a10` passed, and starting with `a03b13d` the build broke.
cc06a69
JSON Schema
Structured Output
(raw) {"commit":"cc06a69"}
375301d
11ce697
JSON Schema
Structured Output
(raw)
{"commit":"11ce697"}
5256691
421721d
JSON Schema
Structured Output
(raw) {
"commit": "421721d"
}
8164f45
5b41867
JSON Schema
Structured Output
(raw) {
"commit": "5b41867"
}
d63454c
a203a7d
JSON Schema
Structured Output
(raw) {
"commit": "a203a7d"
}
0f5aa59
7054f47
JSON Schema
Structured Output
(raw) {
"commit": "7054f47"
}
202cfd5
98109e7
JSON Schema
Structured Output
(raw) {
"commit": "98109e7"
}
45249bb
7ac25a4
JSON Schema
Structured Output
(raw) {
"commit": "7ac25a4"
}
7830cf5
6461abc
JSON Schema
Structured Output
(raw) {
"commit": "6461abc"
}
856a72c
fb507f1
JSON Schema
Structured Output
(raw) { "commit": "fb507f1" }
3ba9fb3
22f8b65
JSON Schema
Structured Output
(raw) {
"commit": "22f8b65"
}
e521754
18d8ff6
JSON Schema
Structured Output
(raw) {
"commit": "18d8ff6"
}
81a2263
7f040d7
341c6bd
7c28615
905ae47
ef76d35
7305fad
ed3d76d
fc00bc5
4e553fe
33e16ad
3b7ec05
The bad commit is **`46985da`** (change to red).
**Reasoning:** Looking at the test results from oldest to newest, the first two commits (`87ee20c` and `76beec1`) both pass. The test first fails at commit `46985da` ("change to red"), and continues to fail on the subsequent commit. This means `46985da` is the commit that introduced the bug.
f4e6b2f
f82dec1
7bf233f
8a235a4
The bad commit is **b67bc49** ("change to red").
Here's the reasoning:
- `041fecf` Initial commit: ✅ PASS
- `6be30ca` add blue styling: ✅ PASS (last known good commit)
- `b67bc49` change to red: ❌ **FAIL** (first failing commit — this is the one that introduced the bug)
- `5b34f62` add theme title: ❌ FAIL (fails because it builds on the already-broken `b67bc49`)
The transition from PASS → FAIL occurs between `6be30ca` and `b67bc49`, making **b67bc49** the commit that broke the build.
The bad commit is **`27cd1c2`** (subject line: `change to red`).
**Reasoning:**
- `0f3f275` Initial commit: ✅ PASS
- `80188c5` add blue styling: ✅ PASS
- `27cd1c2` change to red: ❌ **FAIL** ← First failure — this is the commit that broke the build
- `1ba98f8` add theme title: ❌ FAIL (inherits the broken state from `27cd1c2`)
The build was still passing at `80188c5` and then failed at the very next commit `27cd1c2`, making it the one that introduced the bug.
The bad commit is **10b63d7** ("change to red").
**Reasoning:**
- `40d3ee9` Initial commit → PASS ✅
- `743ac5b` add blue styling → PASS ✅
- `10b63d7` change to red → FAIL ❌ ← **First failure**
- `59045a3` add theme title → FAIL ❌
The last passing commit is `743ac5b`, and the first failing commit is `10b63d7`. This means commit `10b63d7` ("change to red") is the one that introduced the bug.
3af388a
The bad commit is **1f81597** ("change to red").
The test results show a clear transition: the commit `2e28e8a add blue styling` passes, but the very next commit `1f81597 change to red` fails. This pinpoints `1f81597` as the commit that introduced the bug.
cfd851e
936f53e
JSON Schema
Structured Output
(raw) {
"commit": "936f53e"
}
27e399c
10badf2
JSON Schema
Structured Output
(raw) {"commit": "10badf2"}
1b9f046
78a1e6f
JSON Schema
Structured Output
(raw) {
"commit": "78a1e6f"
}
c49e046
1ebb84a
JSON Schema
Structured Output
(raw) {
"commit": "1ebb84a"
}
a2def54
989a4f6
JSON Schema
Structured Output
(raw) {
"commit": "989a4f6"
}
991dcbc
e584834 change to red
JSON Schema
Structured Output
(raw) {
"commit": "e584834 change to red"
}
The bad commit is **ef38b6d** ("change to red").
This is the first commit where the test transitions from PASS to FAIL. All commits before it (`59bb5bb` and `c4d5437`) pass, and starting with `ef38b6d`, the tests fail. The subsequent commit `c830420` also fails, but it inherited the breakage from `ef38b6d`.
1de0824
JSON Schema
Structured Output
(raw) {"commit": "1de0824"}
0c88c9b
3a98177
JSON Schema
Structured Output
(raw) {
"commit": "3a98177"
}
The bad commit is **e8180e3** ("change to red").
This is determined by looking at where the test results transition from PASS to FAIL:
- `8b93e7c` (add blue styling): **PASS**
- `e8180e3` (change to red): **FAIL** ← first failure
Since commit `e8180e3` is the first commit where the test fails (and the immediately preceding commit passes), it is the commit that introduced the bug.
b7747ae
JSON Schema
Structured Output
(raw) {"commit": "b7747ae"}
a8ab459
6cdbd30
JSON Schema
Structured Output
(raw) {
"commit": "6cdbd30"
}
8c9ae82
7779f31
JSON Schema
Structured Output
(raw) {"commit":"7779f31"}
6923b71
82a00cb
JSON Schema
Structured Output
(raw) {"commit":"82a00cb"}
a665675
16fb46b
JSON Schema
Structured Output
(raw) {"commit":"16fb46b"}
e699de6
22e6595
JSON Schema
Structured Output
(raw) {"commit":"22e6595"}
3e1ffd0
4a94344
JSON Schema
Structured Output
(raw) {"commit":"4a94344"}
**Bad commit: `28e2e68` — "change to red"**
Reasoning:
- `f8c38cb` (Initial commit): PASS ✅
- `f45c9b5` (add blue styling): PASS ✅
- `28e2e68` (change to red): FAIL ❌ ← first failure
- `6637b20` (add theme title): FAIL ❌
Since the tests passed on `f45c9b5` and first failed on `28e2e68`, the commit "change to red" is the one that introduced the bug.
The bad commit is **a14c4ca** ("change to red") — it's the first commit where the tests failed, meaning it introduced the bug.
**Bad commit: `25d27b5` — "change to red"**
**Reasoning:**
Looking at the test results chronologically (oldest → newest):
| Commit | Subject | Result |
|---|---|---|
| `d6605e6` | Initial commit | ✅ PASS |
| `298a475` | add blue styling | ✅ PASS |
| `25d27b5` | change to red | ❌ **FAIL** |
| `3b6504d` | add theme title | ❌ FAIL |
The last known-good commit is `298a475` ("add blue styling"). The very next commit, `25d27b5` ("change to red"), is the **first commit where the build fails**, which means it introduced the bug. The subsequent commit `3b6504d` also fails, but only because it inherited the breakage — it isn't the culprit.
This mirrors the logic of `git bisect`: the bad commit is the first one in history whose tests flip from PASS to FAIL.
1b91aba
8ca72f4
JSON Schema
Structured Output
(raw) { "commit": "8ca72f4" }
b181231
05634d0
JSON Schema
Structured Output
(raw) { "commit": "05634d0" }
afa16c5
f844dab
JSON Schema
Structured Output
(raw) { "commit": "f844dab" }
1c9ea07
e673d2e
53f7a39
JSON Schema
Structured Output
(raw) {
"commit": "53f7a39"
}
119ab09 (change to red)
140a07c
JSON Schema
Structured Output
(raw) {"commit": "140a07c"}
2673114 (change to red)
b917f6e
JSON Schema
Structured Output
(raw) {
"commit": "b917f6e"
}
b023b24
b60e92f
JSON Schema
Structured Output
(raw) { "commit": "b60e92f" }
4a952be (or "change to red")
9dd6dd1
JSON Schema
Structured Output
(raw) {"commit":"9dd6dd1"}
a321ada
eafdf78
58c502f
JSON Schema
Structured Output
(raw) {"commit": "58c502f"}
The build first fails at commit **8a242fe** (`change to red`).
- `a381d6e` PASS
- `3b9c0b5` PASS
- `8a242fe` FAIL ← bad commit
- `45c503c` FAIL
Answer: `8a242fe` (or `change to red`)
a32cfb5
JSON Schema
Structured Output
(raw) { "commit": "a32cfb5" }
ef8e49b
e5add2c
ce94553
JSON Schema
Structured Output
(raw) {"commit": "ce94553"}
c90c4b9
f332dad
JSON Schema
Structured Output
(raw) { "commit": "f332dad" }
0f1c978<|end_message|>
fdaa51d
2d0e3bf
5529108
JSON Schema
Structured Output
(raw) {"commit":"5529108"}
The test results show a clear transition point: commits 699b61d and c770b9a both exit with code 0 (PASS), while 7c8da9e is the first commit to exit with code 1 (FAIL). Because the repository uses linear history, this pinpoints 7c8da9e ("change to red") as the single commit that introduced the breaking change. The subsequent commit (bf13994) also fails, but that is expected once the bug already exists; it did not create the regression.
Thus the bad commit is identified by its leading 7-character hash.
7c8da9e
Final answer: 7c8da9e
5ac0a70
JSON Schema
Structured Output
(raw) {"commit": "5ac0a70"}
98a9806
d459e28
JSON Schema
Structured Output
(raw) {"commit":"d459e28"}
The test results show a clean pass on commit `f99a96c`, followed by an immediate failure on the very next commit `270adc6`. This identifies `270adc6` (subject “change to red”) as the first commit that introduced the failing change; the subsequent commit simply inherits the same failure.
Final answer: 270adc6
6cc8134
JSON Schema
Structured Output
(raw) {"commit":"6cc8134"}
da326fd
261e166
JSON Schema
Structured Output
(raw) {"commit":"261e166"}
fe44f25
bc2f000
JSON Schema
Structured Output
(raw) {"commit":"bc2f000"}
2e09eb6
3962212
JSON Schema
Structured Output
(raw) {"commit":"3962212"}
341e8fa
78a321e
JSON Schema
Structured Output
(raw) {"commit": "78a321e"}
570c4a5
a195af4
JSON Schema
Structured Output
(raw) {"commit":"a195af4"}
**7c729cd**
The tests pass on the initial commit and "add blue styling", but fail starting with "change to red" (and remain failed on later commits). This identifies 7c729cd as the first bad commit that introduced the build failure.
073aa07
JSON Schema
Structured Output
(raw) {"commit":"073aa07"}
The commits pass up through `2914237`, then permanently fail starting at `f06132d`. Therefore the regression was introduced by that commit.
f06132d
35eccaf
JSON Schema
Structured Output
(raw) {"commit":"35eccaf"}
719de7d
ef87012
JSON Schema
Structured Output
(raw) {"commit":"ef87012"}
8bb37c7
ead4a71
JSON Schema
Structured Output
(raw) {"commit":"ead4a71"}
93185eb
2b78d2a
JSON Schema
Structured Output
(raw) {"commit":"2b78d2a"}
aaa69b8
fb73810
JSON Schema
Structured Output
(raw) {"commit":"fb73810"}
f89a2d6
22982d3
JSON Schema
Structured Output
(raw) {"commit":"22982d3"}
**7f10480** — "change to red"
**Reasoning:** The test results show the build was passing at `3dc0b75` (PASS) and first failed at `7f10480` (FAIL). Since `47d98f6` also fails, but it comes after, the first commit to introduce the failure is `7f10480`.
ef4c5b7
JSON Schema
Structured Output
(raw) {"commit":"ef4c5b7"}
**36376e6** — "change to red"
**Reasoning:** Using git bisect logic — the test passes at `61173b6` (add blue styling) and first fails at `36376e6` (change to red). Since `36376e6` is the first commit where the build fails, that is the commit that introduced the bug. The later commit `e4101f6` merely continues to fail (the bug was never fixed), so it isn't the culprit.
4387e47
JSON Schema
Structured Output
(raw) {"commit":"4387e47"}
**f522011** (subject: "change to red")
This is the first commit where the test results change from PASS to FAIL, indicating it introduced the bug that broke the build.
9c5e87d
JSON Schema
Structured Output
(raw) { "commit": "9c5e87d" }
## Identifying the Bad Commit
**Reasoning (bisect-style analysis):**
| Commit | Subject | Result |
|---|---|---|
| 18ebc77 | Initial commit | PASS ✅ |
| ebcbd27 | add blue styling | PASS ✅ |
| **ed51ec4** | **change to red** | **FAIL ❌** |
| 7b5445d | add theme title | FAIL ❌ |
The build was passing through `ebcbd27` ("add blue styling") and first started failing at the very next commit. Since the tests passed immediately *before* this commit and failed immediately *after*, the transition point is unambiguous — this is exactly what a binary search (git bisect) would converge on.
The later commit (`7b5445d`) also fails, but it merely inherits the already-broken state.
## Answer
**`ed51ec4`** — subject line: **"change to red"**
076194c
JSON Schema
Structured Output
(raw) { "commit": "076194c" }
8e268aa
fd521a0
JSON Schema
Structured Output
(raw) {"commit":"fd521a0"}
## Identifying the Bad Commit
**Analysis of the test results:**
| Commit | Result |
|--------|--------|
| `27734fc` Initial commit | ✅ PASS |
| `bdbcc12` add blue styling | ✅ PASS |
| `f3c0508` change to red | ❌ **FAIL** |
| `e269155` add theme title | ❌ FAIL |
**Reasoning:**
Using **bisecting logic** (checking where the transition from PASS to FAIL occurs):
1. The repository was building correctly after `bdbcc12` (add blue styling).
2. The **first failing commit** is `f3c0508` (change to red).
3. The subsequent commit `e269155` also fails, but only because the bug was already introduced by the earlier commit.
**Answer:** `f3c0508` — commit subject: **"change to red"**
43d08c8
JSON Schema
Structured Output
(raw) {"commit":"43d08c8"}
## Bisect Analysis
Looking at the test results in order from oldest to newest:
| Commit | Subject | Result |
|--------|---------|--------|
| `6b423d6` | Initial commit | ✅ PASS |
| `b431cc4` | add blue styling | ✅ PASS |
| **`e601093`** | **change to red** | ❌ **FAIL** |
| `9e681e2` | add theme title | ❌ FAIL |
The build was passing at `b431cc4` and first broke at `e601093`. The later failure at `9e681e2` is just a continuation of the broken state — it didn't introduce the bug, it simply inherited it.
## Answer
**`e601093`** — "change to red" is the bad commit that introduced the bug.
dafdf38
JSON Schema
Structured Output
(raw) {"commit":"dafdf38"}
## Analysis
**Step 1: Order the commits chronologically (oldest → newest)**
| Order | Commit | Subject | Test Result |
|-------|--------|---------|-------------|
| 1 | `9e3e77a` | Initial commit | PASS (0) |
| 2 | `60e257c` | add blue styling | PASS (0) |
| 3 | `1e9d6ca` | change to red | **FAIL (1)** |
| 4 | `1b8a560` | add theme title | FAIL (1) |
**Step 2: Find the pass → fail transition**
Bisection logic: the bad commit is the first commit in history where the build state changes from PASS to FAIL, since the tree is cumulative (each commit contains all prior changes).
- `9e3e77a` — PASS → the build is healthy at the start; the bug does not exist yet.
- `60e257c` — PASS → this commit's diff is clean; it is *not* the culprit.
- `1e9d6ca` — FAIL → this is the **first** commit at which the build breaks. Its diff ("change to red") is what introduced the regression.
- `1b8a560` — FAIL → still broken, but it merely *inherits* the bug; it did not introduce it (a later commit cannot be the origin if an earlier commit already fails).
**Step 3: Verify the interpretation**
If the bug had been introduced by `60e257c`, that commit would already have failed. If it had been introduced by `1b8a560`, then `1e9d6ca` would have passed. The only consistent explanation is that the change from blue styling to red broke the build (e.g., an invalid CSS property/value, a removed class reference used elsewhere, or a syntax error in the stylesheet), and the subsequent "add theme title" commit did not fix it.
## Final Answer
**`1e9d6ca`** — "change to red"
31a3753
JSON Schema
Structured Output
(raw) { "commit": "31a3753" }
## Analysis
Looking at the test results ordered from oldest to newest:
| Commit | Subject | Test Result |
|--------|---------|-------------|
| 877b503 | Initial commit | ✅ PASS |
| 90827f7 | add blue styling | ✅ PASS |
| **e98bc8f** | **change to red** | ❌ **FAIL** |
| fd93797 | add theme title | ❌ FAIL |
**Bisect logic:** The build is passing at `90827f7` and starts failing at `e98bc8f`. Since `fd93797` also fails, it merely inherits the broken state — it is not the root cause. The transition from PASS → FAIL happens exactly at `e98bc8f`, so the bug was introduced there.
Verification: `e98bc8f`'s parent (`90827f7`) passes, and `e98bc8f` itself fails — the bug must be in the diff of `e98bc8f` (the "change to red" modification introduced a syntax/logic error in the styling/theme code).
## Answer
**e98bc8f** (subject: "change to red")
e8b9af9
JSON Schema
Structured Output
(raw) { "commit": "e8b9af9" }
**9f25917** ("change to red")
## Reasoning
Working from oldest to newest commit using the test results:
| Commit | Subject | Test Result |
|--------|---------|-------------|
| `8cbb71d` | Initial commit | ✅ PASS |
| `3ec50d5` | add blue styling | ✅ PASS |
| `9f25917` | change to red | ❌ FAIL |
| `655d560` | add theme title | ❌ FAIL |
- `8cbb71d` passes → good.
- `3ec50d5` passes → good (built on a good commit).
- `9f25917` **fails** → this is the transition point from PASS → FAIL. Since its parent (`3ec50d5`) passed, the bug was introduced here.
- `655d560` also fails, but that's just because it inherits the bug from `9f25917` (it's still broken on top of a broken base).
Therefore, the bad commit is **`9f25917`** ("change to red") — it is the first commit where the build stopped passing, meaning it introduced the breaking change.
c94c072
JSON Schema
Structured Output
(raw) {"commit":"c94c072"}
## Analysis
Looking at the test results ordered from oldest to newest:
| Commit | Subject | Result |
|---|---|---|
| `cc78910` | Initial commit | PASS |
| `eab56a5` | add blue styling | PASS |
| `e5946d1` | change to red | **FAIL** |
| `2bc3194` | add theme title | FAIL |
**Logic (bisect-style reasoning):**
- `cc78910` passes → build is healthy at the initial commit.
- `eab56a5` passes → the blue styling change did not break anything.
- `e5946d1` is the **first** commit where the test suite transitions from PASS to FAIL — this is exactly where the regression is introduced.
- `2bc3194` also fails, but this is expected: the bug from `e5946d1` was inherited by all subsequent commits. A failure in later commits doesn't mean they introduced it.
Since `eab56a5` (its parent) is green and `e5946d1` is red, `e5946d1` is the bad commit.
## Answer
**`e5946d1`** (subject: *change to red*)
f89c451
JSON Schema
Structured Output
(raw) {"commit": "f89c451"}
7c68da6
01a34e8
JSON Schema
Structured Output
(raw) { "commit": "01a34e8" }
e07b13a
9b4180a
ab48ca3
JSON Schema
Structured Output
(raw) { "commit": "ab48ca3" }
f851fb5
fb8c760
JSON Schema
Structured Output
(raw) { "commit": "fb8c760" }
7f3ff74
b3dcf8c
JSON Schema
Structured Output
(raw) { "commit": "b3dcf8c" }
f1083dc
0fe074f
JSON Schema
Structured Output
(raw) {"commit": "0fe074f"}
e202577
c418fb9
JSON Schema
Structured Output
(raw) {
"commit": "c418fb9"
}
0bf5326
4b13252
JSON Schema
Structured Output
(raw) {"commit": "4b13252"}
f26ef8e
f1eec7f
JSON Schema
Structured Output
(raw) { "commit": "f1eec7f" }
cf334d9
032ed48
JSON Schema
Structured Output
(raw) { "commit": "032ed48" }
**Bad commit: `27b155a` — "change to red"**
**Reasoning:**
- `36b92ed` (Initial commit): PASS
- `fcecc66` (add blue styling): PASS
- `27b155a` (change to red): **FAIL** ← first failure
- `5ae5d4b` (add theme title): FAIL (expected, since it builds on the broken commit)
This is essentially the logic behind `git bisect`: the bad commit is the first commit in history where the test switches from PASS to FAIL. Since `fcecc66` passed and `27b155a` failed, the bug was introduced in `27b155a` ("change to red").
e41e17b
JSON Schema
Structured Output
(raw) {
"commit": "e41e17b"
}
**2d16058** ("change to red") is the bad commit — it's the first commit that failed the test.
## Bad Commit Identified
**`1bf83b1` — "change to red"**
### Reasoning
This is a classic binary search (git bisect) scenario. Working from oldest to newest:
| Commit | Subject | Result |
|--------|---------|--------|
| `8616372` | Initial commit | ✅ PASS |
| `a55ca07` | add blue styling | ✅ PASS |
| `1bf83b1` | change to red | ❌ FAIL |
| `06fb438` | add theme title | ❌ FAIL |
- The last **known good** commit is `a55ca07` (add blue styling), which passes.
- The first **failing** commit is `1bf83b1` (change to red).
- Since `06fb438` (a later commit) also fails, it merely inherited the breakage — it isn't the culprit.
Therefore, the bug was introduced by commit **`1bf83b1` "change to red"**.
aaae191 change to red
JSON Schema
Structured Output
(raw) { "commit": "aaae191 change to red" }
**3ace88d** ("change to red") is the bad commit. The Initial commit and "add blue styling" passed, and tests first failed at "change to red", so it introduced the bug.
ee20622
JSON Schema
Structured Output
(raw) {
"commit": "ee20622"
}
**Bad commit: `3486108` — "change to red"**
**Reasoning:**
Testing the commits from oldest to newest:
| Commit | Subject | Result |
|--------|---------|--------|
| `776eb50` | Initial commit | PASS |
| `5da7503` | add blue styling | PASS |
| `3486108` | change to red | **FAIL** ← first failure |
| `b5f65bf` | add theme title | FAIL |
Since `5da7503` passed and `3486108` was the first commit to fail (exit code 1), the bug was introduced in `3486108` ("change to red"). The subsequent commit `b5f65bf` also fails, but only because it inherits the broken state — it is not the culprit.
d083229 change to red
JSON Schema
Structured Output
(raw) {"commit": "d083229 change to red"}
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: 1ca9aeb
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)
da35751 add theme title
JSON Schema
Structured Output
(raw) {
"commit": "da35751 add theme title"
}
Failure: Expected target hash/prefix or subject 'change to red'
Invalid JSON. Output: To identify the **bad commit**, let's analyze the information step-by-step:
### Step 1: Understand the timeline
- **Newest first:**
- `93dfb15` → **FAIL**
- `3661255` → **PASS**
- `7a19ca5` → **FAIL**
- `7c0a3dd` → **PASS**
### Step 2: Interpret the test results
- The **first failing commit** in the test output is `7a19ca5 change to red`.
- This means that after this commit, the build started failing.
- The next commit (`93dfb15`) also fails, but it comes **after** the bad commit.
### Step 3: Conclusion
The **first commit that caused the build to fail** was:
```
7a19ca5 change to red
```
---
**Final Answer:**
`7a19ca5 change to red`
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)
b6a84
JSON Schema
Structured Output
(raw) {
"commit": "b6a84"
}
Failure: Expected target hash/prefix or subject 'change to red'
(empty output)
Failure: Expected target hash/prefix or subject 'change to red'
2dfaf66
JSON Schema
Structured Output
(raw) {
"commit": "2dfaf66"
}
Failure: Expected target hash/prefix or subject 'change to red'
analysis
JSON Schema
Structured Output
(raw) {"commit":"analysis"}
Failure: Expected target hash/prefix or subject 'change to red'
(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-14d01f07-ccb4-9f44-98f3-8543da322d8f","request_id":"14d01f07-ccb4-9f44-98f3-8543da322d8f"}', '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-a6b23944-030e-9d77-af2b-0bafd144c9b5","request_id":"a6b23944-030e-9d77-af2b-0bafd144c9b5"}', '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-599237fa-8a34-9732-9a62-dd3539d30c50","request_id":"599237fa-8a34-9732-9a62-dd3539d30c50"}', '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-707df86e-42a7-9f5c-bd74-7fce615d98fe","request_id":"707df86e-42a7-9f5c-bd74-7fce615d98fe"}', '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-9f039b8c-0d4e-9efe-b61f-7fcdba71bba7","request_id":"9f039b8c-0d4e-9efe-b61f-7fcdba71bba7"}', '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-51c77042-60ce-9bdc-ac81-896f1cbf894e"}\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-7ec621ee-2947-957d-85d4-48511c363d01"}\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-46e074f5-5523-9a84-837c-90d672617b2b"}\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-c4d9fbed-5a47-9d3d-9966-af42c368d12c"}\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-b45fc663-5b92-9d45-8fde-30fa353994e0"}\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-85458055-5fc3-96d8-a26b-da9f1acc4fc3","request_id":"85458055-5fc3-96d8-a26b-da9f1acc4fc3"}', '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-e62fad22-0e3f-9976-9bdb-ce3d6ef1f3ad","request_id":"e62fad22-0e3f-9976-9bdb-ce3d6ef1f3ad"}', '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-c6825c11-96bf-9e48-9719-c7169c687418","request_id":"c6825c11-96bf-9e48-9719-c7169c687418"}', '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-b1ad67cd-476c-95b9-9c4c-55850b403fdf","request_id":"b1ad67cd-476c-95b9-9c4c-55850b403fdf"}', '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-adc2cd92-9983-903b-a575-b6d8613ec375","request_id":"adc2cd92-9983-903b-a575-b6d8613ec375"}', '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-1df327b1-1a7a-9cec-8845-4be2a2a432ea","request_id":"1df327b1-1a7a-9cec-8845-4be2a2a432ea"}', '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-06893a39-59de-9c9c-a223-77c9693a0f31","request_id":"06893a39-59de-9c9c-a223-77c9693a0f31"}', '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-adacc766-b3fc-9eb0-8fb9-f1c67fdd1864","request_id":"adacc766-b3fc-9eb0-8fb9-f1c67fdd1864"}', '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-090c13e2-e7fa-9704-9d29-742d5e5bb9a1","request_id":"090c13e2-e7fa-9704-9d29-742d5e5bb9a1"}', '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-c1e89b03-dcad-9025-90c0-c12898a4e579","request_id":"c1e89b03-dcad-9025-90c0-c12898a4e579"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
Invalid JSON. Output: **Bad commit: `69621a8` — "change to red"**
Reasoning:
- `82dc980` (Initial commit) → PASS
- `1129e57` (add blue styling) → PASS
- `69621a8` (change to red) → **FAIL** ← first commit where the build breaks
Since the test suite passed on its parent (`1129e57`) and failed on `69621a8`, this is the commit that introduced the bug. All later commits (`5382f53`) also fail, which is consistent with the bug originating there.
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 bad commit is **ef376db** ("change to red").
It's the first commit in history where tests fail — 4f2f72d passes, but ef376db fails, so the bug was introduced there. (afde2b7 also fails, but only because it inherits the broken change.)
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: **Bad commit:** `0aea0e9` — "change to red"
**Reasoning:**
- `13cd37e` (Initial commit): PASS ✅
- `1a955fb` (add blue styling): PASS ✅
- `0aea0e9` (change to red): FAIL ❌ — first failure in history
- `32655a8` (add theme title): FAIL ❌ — continues to fail
Since all commits before `0aea0e9` pass and the build first breaks at `0aea0e9`, that commit introduced the bug. This mirrors what `git bisect` would find: the first bad commit is the earliest commit with a failing test, which is "change to red."
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)
JSON Schema
Structured Output
Failure: Model 'tencent/hy3:none' violated the reasoning_level=none invariant: provider reported 449 reasoning token(s)
Invalid JSON. Output: 8d8dbf2{ "commit": "8d8dbf2" }
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: f298389
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: d6a3b59{
"commit": "d6a3b59"
}
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: d47dd2a
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: The bad commit is **4520fb6** ("change to red") — it's the first commit where the test fails; everything after it also fails.
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)