Linear history with bad commit in the middle - model identifies middle commit as bad
Tests ability to identify a middle commit as bad in a linear history. Evaluates bisect with the bug not at either end.
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 "42" config.json' >> test.sh - 06
chmod +x test.sh - 07
echo '{"value": 42}' > config.json - 08
git add test.sh config.json - 09
git commit -m 'Initial commit' - 10
echo '{"value": 42, "name": "default"}' > config.json - 11
git add config.json - 12
git commit -m 'set config value' - 13
echo '{"value": 0}' > config.json - 14
git add config.json - 15
git commit -m 'reset config to zero' - 16
echo '{"value": 100}' > config.json - 17
git add config.json - 18
git commit -m 'final config'
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
reset config to zero
Fixture Metrics
Scoped model quality, cost, API time, and token usage for git_bisect/f002.
Loading...
Raw Attempt Evidence
Loading raw attempt evidence…
Model Outputs (546)
**Bad commit: `d2b5fbf` — "reset config to zero"**
Reasoning (bisect logic):
- `4bb8928` (Initial commit): PASS ✅
- `91ab55b` (set config value): PASS ✅
- `d2b5fbf` (reset config to zero): FAIL ❌ ← first failing commit
- `4e9f8cc` (final config): FAIL ❌ (inherited the breakage)
The build transitions from passing to failing at `d2b5fbf`, so that commit introduced the bug.
dc4b5d2
JSON Schema
Structured Output
(raw) {"commit": "dc4b5d2"}
First failing commit: **c7242aa** — "reset config to zero"
4372c66
JSON Schema
Structured Output
(raw) {"commit": "4372c66"}
## Bad commit: `d0e9277` — "reset config to zero"
### Reasoning
Walking through the test results in chronological order (oldest → newest), we look for the first transition from **PASS** to **FAIL**:
| Commit | Subject | Result |
|---|---|---|
| `a9a6ae0` | Initial commit | ✅ PASS |
| `e2f5c48` | set config value | ✅ PASS |
| `d0e9277` | reset config to zero | ❌ FAIL ← **first failure** |
| `75ebd4e` | final config | ❌ FAIL |
The build was healthy through `e2f5c48`, then broke at `d0e9277`. All subsequent commits fail because they inherit the breakage — this is exactly the pattern `git bisect` would identify.
**Answer: `d0e9277` ("reset config to zero")**
b2f84d8
JSON Schema
Structured Output
(raw) {"commit": "b2f84d8"}
**efafc80** — "reset config to zero"
The tests pass through `58b8cca` and first fail at `efafc80`, meaning that commit introduced the bug (likely resetting a config value to zero broke something that depended on the previously set value).
44b6d0b
JSON Schema
Structured Output
(raw) {"commit": "44b6d0b"}
The bad commit is **803e59d** — "reset config to zero".
**Reasoning:**
- `afaae0d` (Initial commit): PASS
- `b4ab811` (set config value): PASS
- `803e59d` (reset config to zero): **FAIL** ← first failing commit
- `d04ffa0` (final config): FAIL (inherits the breakage)
The build passes through `b4ab811` and first fails at `803e59d`, so that commit introduced the bug. All subsequent failures are a consequence of it.
9c27066
JSON Schema
Structured Output
(raw) {"commit": "9c27066"}
# Analysis
Looking at the test results chronologically:
1. **f6ea3a4** (Initial commit): PASS ✓
2. **51ed682** (set config value): PASS ✓
3. **3017cba** (reset config to zero): FAIL ✗ ← First failure
4. **37fc1e3** (final config): FAIL ✗
The build was passing through commit `51ed682` and first failed at commit `3017cba`. This is the commit that introduced the bug.
**Answer: `3017cba`** (or "reset config to zero")
8f8390f
JSON Schema
Structured Output
(raw) {"commit": "8f8390f"}
# Answer
**41e420b** (or "reset config to zero")
## Analysis
Looking at the test results in chronological order:
- 4e81b44 (Initial commit): **PASS** ✓
- 1378c64 (set config value): **PASS** ✓
- 41e420b (reset config to zero): **FAIL** ✗
- a8b612a (final config): **FAIL** ✗
The first commit where tests fail is **41e420b (reset config to zero)**. This is where the build broke, transitioning from a passing state to a failing state. The subsequent commit (a8b612a) also fails, but it's a consequence of the bad commit that preceded it.
1934591
JSON Schema
Structured Output
(raw) {"commit": "1934591"}
# Answer
**0ca53b4**
## Analysis
Looking at the test results in chronological order:
1. 9a9330c Initial commit: **PASS** ✓
2. 0ac3db0 set config value: **PASS** ✓
3. 0ca53b4 reset config to zero: **FAIL** ✗ ← First failure
4. c951d89 final config: **FAIL** ✗
The bad commit is **0ca53b4 (reset config to zero)** because it's the first commit where the build started failing. The tests passed up through commit 0ac3db0, and began failing at commit 0ca53b4.
0a66d08
JSON Schema
Structured Output
(raw) {"commit": "0a66d08"}
# Analysis
Looking at the test results in chronological order:
1. **2fd6398** (Initial commit): PASS ✓
2. **0b45ee2** (set config value): PASS ✓
3. **2d513b1** (reset config to zero): FAIL ✗
4. **8bd6e91** (final config): FAIL ✗
The first commit to fail is **2d513b1**, which is where the build broke. The subsequent commit (8bd6e91) also fails, but that's a consequence of the bad commit before it.
**Answer: 2d513b1** (or "reset config to zero")
4cfb24a
JSON Schema
Structured Output
(raw) {"commit": "4cfb24a"}
# Analysis
Looking at the test results in chronological order (oldest first):
1. **a906e73** Initial commit: PASS ✓
2. **0aa3999** set config value: PASS ✓
3. **ea25bdf** reset config to zero: **FAIL** ✗ ← First failure
4. **f7584b6** final config: FAIL ✗
The bad commit is **ea25bdf** (or "reset config to zero"), as it's the first commit where the tests started failing.
478cc90
JSON Schema
Structured Output
(raw) {"commit": "478cc90"}
The bad commit is `5297149` ("reset config to zero"), as it is the first commit where the test changes from PASS to FAIL.
f3374a7
JSON Schema
Structured Output
(raw) {"commit":"f3374a7"}
600b6fa
cb13054
JSON Schema
Structured Output
(raw) {"commit":"cb13054"}
**Bad commit: `7c1c971`** ("reset config to zero")
**Reasoning:** The test results show that all commits up to and including `ee0e682` (set config value) **pass**, but `7c1c971` (reset config to zero) is the first commit that **fails**. Since the subsequent commit `2e4cbff` also fails, the bug was introduced at `7c1c971` and carried forward. This is the classic `git bisect` pattern — the bad commit is the first one where the test transitions from PASS → FAIL.
6feb757
JSON Schema
Structured Output
(raw) {"commit":"6feb757"}
b081d32
995c34b
JSON Schema
Structured Output
(raw) {"commit":"995c34b"}
The bad commit is **0696f73** ("reset config to zero"), as it is the first commit where the test changes from PASS to FAIL.
4e3cd24
JSON Schema
Structured Output
(raw) {"commit":"4e3cd24"}
The bad commit is **3c4b1f1** ("reset config to zero"), as it is the first commit where the test changes from PASS to FAIL.
84f6962
JSON Schema
Structured Output
(raw) {"commit":"84f6962"}
c01f521
212cf6b
JSON Schema
Structured Output
(raw) {"commit":"212cf6b"}
18d2c12
bbfe550
JSON Schema
Structured Output
(raw) {"commit":"bbfe550"}
Looking at the test results, I can identify the bad commit by finding where the tests transitioned from PASS to FAIL:
- `561788d` Initial commit: **PASS**
- `5fd7f9d` set config value: **PASS**
- `638af6d` reset config to zero: **FAIL** ← First failure
- `cd1e120` final config: FAIL (inherits the bug)
The bad commit is **`638af6d`** ("reset config to zero"). This is the commit where the build first started failing, and the subsequent commit `cd1e120` also fails because it inherits the broken state.
322f6b2
JSON Schema
Structured Output
(raw) {"commit":"322f6b2"}
b22e6f4
f894d85
JSON Schema
Structured Output
(raw) {"commit":"f894d85"}
a4ede51
0d74192
JSON Schema
Structured Output
(raw) {"commit":"0d74192"}
33f284d
7d97c01
JSON Schema
Structured Output
(raw) {"commit":"7d97c01"}
The bad commit is **e5c8297** ("reset config to zero").
**Reasoning:**
- `d6a4132` (Initial commit): PASS
- `16ef232` (set config value): PASS
- `e5c8297` (reset config to zero): **FAIL** ← first failure
- `70bcab5` (final config): FAIL (inherits the breakage)
Since the tests pass up through `16ef232` and start failing at `e5c8297`, the commit that introduced the bug is **e5c8297 "reset config to zero"**. It likely reset a required config value to zero, breaking the build.
a49b26b
JSON Schema
Structured Output
(raw) {"commit":"a49b26b"}
ed1e40c
The commit "reset config to zero" (ed1e40c) is the bad commit — the build passed at 428da96 and started failing at ed1e40c, continuing to fail in the subsequent commit.
2dd3a4f
JSON Schema
Structured Output
(raw) {"commit":"2dd3a4f"}
# Analysis
Looking at the test results in chronological order (oldest → newest):
| Commit | Subject | Result |
|--------|---------|--------|
| `09e0f1b` | Initial commit | ✅ PASS |
| `87a9d56` | set config value | ✅ PASS |
| `d062bb8` | reset config to zero | ❌ **FAIL** |
| `a7d0dd0` | final config | ❌ FAIL |
The build transitions from **PASS → FAIL** at commit `d062bb8`. Everything before it passes, and everything from it onward fails. This is the first bad commit that introduced the bug.
## Answer
**`d062bb8`** — "reset config to zero"
The commit subject strongly corroborates this: resetting the config value to zero likely introduced an invalid state (e.g., a divide-by-zero, a disabled required setting, or a zeroed-out parameter) that broke the build. The subsequent commit `a7d0dd0` inherits the same broken state, which is why it continues to fail.
b0aedf3
JSON Schema
Structured Output
(raw) {"commit": "b0aedf3"}
The bad commit is **215a16b** ("reset config to zero").
This is the first commit where the build started failing:
- `42898ca` → PASS
- `c7a19fd` → PASS
- `215a16b` → **FAIL** ← first failure (bad commit)
- `9155473` → FAIL (inherits the breakage)
Since the failure first appears at `215a16b` and all preceding commits pass, this is the commit that introduced the bug.
dee2db2
JSON Schema
Structured Output
(raw) {"commit": "dee2db2"}
The bad commit is **`2a69c87`** (`reset config to zero`).
The tests pass through `ba4950f` and start failing at `2a69c87`, which is where the build broke.
6d109f6
JSON Schema
Structured Output
(raw) {"commit": "6d109f6"}
## Analysis
Looking at the test results in chronological order (oldest to newest):
| Commit | Subject | Result |
|--------|---------|--------|
| `dc8f439` | Initial commit | ✅ PASS |
| `9f5842a` | set config value | ✅ PASS |
| `0c0d473` | reset config to zero | ❌ FAIL |
| `a33514d` | final config | ❌ FAIL |
## Conclusion
The build transitions from **PASS → FAIL** at commit `0c0d473`. Everything before it passes, and everything from that point onward fails (the failure persists into `a33514d`).
**Bad commit: `0c0d473` — "reset config to zero"**
This commit is the first one where the build breaks. The "reset config to zero" change likely set a configuration value to an invalid/zero state that the build or tests depend on being non-zero.
d289924
JSON Schema
Structured Output
(raw) {"commit": "d289924"}
The bad commit is **0e76a7f**
This is the commit with the subject line "reset config to zero" — it's the first commit where the tests start failing (exit code 1), and all subsequent commits also fail, indicating this is where the bug was introduced.
10c5ebc
JSON Schema
Structured Output
(raw) {"commit":"10c5ebc"}
efac7a1
b340c37
JSON Schema
Structured Output
(raw) {"commit":"b340c37"}
## Analysis
Looking at the test results ordered from oldest to newest:
| Commit | Subject | Result |
|--------|---------|--------|
| `e5b631f` | Initial commit | ✅ PASS |
| `91b6682` | set config value | ✅ PASS |
| `448fc91` | reset config to zero | ❌ FAIL |
| `d0870ee` | final config | ❌ FAIL |
The build transitions from **PASS → FAIL** at commit `448fc91`. The subsequent commit `d0870ee` also fails because it inherits the bug introduced in the previous commit.
## Bad Commit
**`448fc91`** — *"reset config to zero"*
This commit reset a configuration value to zero, which likely caused a division-by-zero error, an invalid state, or a required non-zero value check to fail — breaking the build from that point forward.
34f7dd2
JSON Schema
Structured Output
(raw) {"commit":"34f7dd2"}
The bad commit is **61704f2**.
593174c
JSON Schema
Structured Output
(raw) {"commit":"593174c"}
The bad commit is **54508ce**
This is the commit ("reset config to zero") where the tests first started failing (exit code 1), and all subsequent commits continue to fail, indicating this is where the bug was introduced.
87000de
JSON Schema
Structured Output
(raw) {"commit":"87000de"}
Based on the test results, the build was passing through commit `292eb96` and started failing at commit `28047b6`.
The bad commit is: **28047b6**
28f608a
JSON Schema
Structured Output
(raw) {"commit":"28f608a"}
773f5e6 reset config to zero
aea0533
JSON Schema
Structured Output
(raw) {"commit":"aea0533"}
**30e90e8 reset config to zero**
4fb642d
JSON Schema
Structured Output
(raw) {"commit":"4fb642d"}
4ed5a6f
b38a9e3
JSON Schema
Structured Output
(raw) {"commit":"b38a9e3"}
**a3a827c** (reset config to zero)
This is the first commit where the test transitions from PASS to FAIL, indicating it introduced the breaking change. The subsequent commit `b31513b` continues to fail, consistent with the bug persisting after being introduced in `a3a827c`.
2a9922a
JSON Schema
Structured Output
(raw) {"commit":"2a9922a"}
77694a8 reset config to zero
1ff9566
JSON Schema
Structured Output
(raw) {"commit":"1ff9566"}
The first commit that caused the test to fail is `d2d8545 reset config to zero`. This is the bad commit that introduced the bug.
8c94d81
The bad commit is `8bd2aca` (subject line: "reset config to zero"), as it is the first commit where the tests fail.
The first commit that causes a test failure is `79cc796` ("reset config to zero"). This indicates the bug was introduced in that commit.
0b310c
The bad commit is `0b310ce` (first 7 characters: `0b310c`), as it is the first commit where tests fail (`FAIL (exit code 1)`). All prior commits (including the initial commit and `set config value`) passed, indicating the bug was introduced in this commit. The subsequent `final config` commit also fails, but the root cause is the `reset config to zero` commit.
0d4f12d
JSON Schema
Structured Output
(raw) {
"commit": "0d4f12d"
}
9b4435e
The test results show that the build passed for the first two commits (a56b75d and 0ec4edb), then failed for the third commit (9b4435e) and the fourth commit (2dacf78). Since the problem states there is only one bad commit that broke the build, the failure starting at commit 9b4435e indicates this is the problematic commit. The subsequent failure at 2dacf78 is likely a result of the initial bug not being fixed, but the root cause is the commit introducing the issue.
a3f940d
JSON Schema
Structured Output
(raw) {
"commit": "a3f940d"
}
4ff7352
(reset config to zero)
4a9b033
JSON Schema
Structured Output
(raw) {
"commit": "4a9b033"
}
1940cee
The bad commit is `1940cee` (reset config to zero), as it is the first commit where the test fails (exit code 1). The subsequent commit (`23c2eb8`) also fails, but the bug was introduced in `1940cee`.
97b09b0
JSON Schema
Structured Output
(raw) {
"commit": "97b09b0"
}
b7c169a
0675409
JSON Schema
Structured Output
(raw) { "commit": "0675409"
}
20719aa
5370b4f
JSON Schema
Structured Output
(raw) {"commit": "5370b4f"}
9407d37
4b5a06a
JSON Schema
Structured Output
(raw) { "commit": "4b5a06a" }
9716d18
817af10
JSON Schema
Structured Output
(raw) {
"commit": "817af10"
}
The bad commit is **3bd9118** (reset config to zero), since this is the first commit where the test fails, and the failure persists in subsequent commits.
a933efb
JSON Schema
Structured Output
(raw) {
"commit": "a933efb"
}
a8dcc50
76d4505
JSON Schema
Structured Output
(raw) {"commit":"76d4505"}
97d337f
6f27357
JSON Schema
Structured Output
(raw) { "commit": "6f27357" }
15071da
4a70e2d
JSON Schema
Structured Output
(raw) {
"commit": "4a70e2d"
}
138fe8f
Based on the test results, the build passes for commits `5f311eb` (Initial commit) and `7cc011e` (set config value), but fails starting from `7497b1b` (reset config to zero). This means the bug was introduced in commit `7497b1b`.
**7497b1b**
9c6770c
JSON Schema
Structured Output
(raw) { "commit": "9c6770c" }
dff66bc
838457b
fc59873
JSON Schema
Structured Output
(raw) {
"commit": "fc59873"
}
34a8b13
61fed01
JSON Schema
Structured Output
(raw) {
"commit": "61fed01"
}
8e6d1c2
55abf2c
JSON Schema
Structured Output
(raw) {"commit": "55abf2c"}
Based on the test results, the build was passing until commit `891127d reset config to zero`, which introduced the first failure. Since it’s the earliest commit where the test starts failing, that is the bad commit.
**Bad commit:** `891127d`
835cc3b
JSON Schema
Structured Output
(raw) {"commit": "835cc3b"}
The bug was introduced in commit `355c99c` with the subject "reset config to zero", as it is the first commit where the test fails. The previous commit (`cc4674d`) passed.
**Bad commit hash:** `355c99c`
65f6601
JSON Schema
Structured Output
(raw) {"commit": "65f6601"}
19990b2
7f9beb6
JSON Schema
Structured Output
(raw) {
"commit": "7f9beb6"
}
82c9e51
63b4682
JSON Schema
Structured Output
(raw) {"commit":"63b4682"}
58f40c1
7ab2271
JSON Schema
Structured Output
(raw) {
"commit": "7ab2271"
}
758bcf5
8d9c273
JSON Schema
Structured Output
(raw) {"commit":"8d9c273"}
The bad commit is **c9c339c** (reset config to zero).
**Reasoning:**
The commit history shows that the test passed at `d2a3cd2` but failed at `c9c339c`. Therefore, the changes introduced in `c9c339c` are what caused the build failure.
eeae931
JSON Schema
Structured Output
(raw) {"commit":"eeae931"}
The bad commit is **a42981e** (subject: **reset config to zero**).
**Reasoning:**
The test results show that the build passed on `2a64f4c` but failed on `a42981e`. Since `a42981e` is the first commit where the failure appeared, it is the one that introduced the bug.
b01877e
JSON Schema
Structured Output
(raw) {
"commit": "b01877e"
}
dd7e9a8
177f4a5
JSON Schema
Structured Output
(raw) {"commit": "177f4a5"}
The bad commit is **efed42d** (subject: **reset config to zero**).
This is the first commit where the test status changed from PASS to FAIL.
58d96c7
JSON Schema
Structured Output
(raw) {"commit": "58d96c7"}
The bad commit is **f6545f1** ("reset config to zero").
cf4a13b
JSON Schema
Structured Output
(raw) {"commit":"cf4a13b"}
The bad commit that introduced the bug is **8baa93d** ("reset config to zero").
4cf9ee7
JSON Schema
Structured Output
(raw) {
"commit": "4cf9ee7"
}
The bad commit that introduced the bug is **7fb5111** (or "reset config to zero").
Looking at the test results, the build was passing until this commit was introduced, shifting the test result from PASS to FAIL.
3955085
JSON Schema
Structured Output
(raw) {"commit": "3955085"}
07aeb58
98bb0f9
JSON Schema
Structured Output
(raw) {"commit": "98bb0f9"}
a697191
349a50a
JSON Schema
Structured Output
(raw) {"commit": "349a50a"}
To identify the bad commit, we look at the test results in chronological order (oldest to newest):
1. `6d212f2 Initial commit`: PASS
2. `7547133 set config value`: PASS
3. `ced30a6 reset config to zero`: FAIL
Since the build passed in commit `7547133` but failed in the very next commit `ced30a6`, the bug was introduced in `ced30a6`.
**ced30a6** (or "reset config to zero")
c4cdfd3
JSON Schema
Structured Output
(raw) {
"commit": "c4cdfd3"
}
294b8ac
db3a8f2
JSON Schema
Structured Output
(raw) {"commit":"db3a8f2"}
90efaa5
beccb19
JSON Schema
Structured Output
(raw) {"commit": "beccb19"}
9a626f9
04a5859
JSON Schema
Structured Output
(raw) {"commit":"04a5859"}
0a091bd
3b5f82e
JSON Schema
Structured Output
(raw) {"commit": "3b5f82e"}
19b52e7
74dcb0f
JSON Schema
Structured Output
(raw) {
"commit": "74dcb0f"
}
8a7762e
0eb9d97
JSON Schema
Structured Output
(raw) {"commit":"0eb9d97"}
bbfd9c0
b8afc8f
JSON Schema
Structured Output
(raw) {"commit":"b8afc8f"}
800a636
064f58b
JSON Schema
Structured Output
(raw) {"commit":"064f58b"}
The commit that introduced the bug is **c30c03e** (reset config to zero).
d4684b1
JSON Schema
Structured Output
(raw) {
"commit": "d4684b1"
}
**fb3ab0a** (reset config to zero)
3140ab5
JSON Schema
Structured Output
(raw) {"commit":"3140ab5"}
The bad commit that introduced the bug is **`59a3d9d`** (or subject line: **`reset config to zero`**).
a8247f8
JSON Schema
Structured Output
(raw) {"commit":"a8247f8"}
49d0071
9098f10
JSON Schema
Structured Output
(raw) {"commit":"9098f10"}
3559c11
fdc7122
JSON Schema
Structured Output
(raw) {
"commit": "fdc7122"
}
fd5ce66
1b87d68
JSON Schema
Structured Output
(raw) {"commit": "1b87d68"}
96c31bc
a964387
JSON Schema
Structured Output
(raw) {
"commit": "a964387"
}
e22ad7e
bc8c08e
JSON Schema
Structured Output
(raw) {
"commit": "bc8c08e"
}
663d8ca
5185293
JSON Schema
Structured Output
(raw) {
"commit": "5185293"
}
c23498e
fbff938
JSON Schema
Structured Output
(raw) {"commit": "fbff938"}
8b98e11
8fd3e18
JSON Schema
Structured Output
(raw) {"commit": "8fd3e18"}
c1a8c8f
aa6cff8
JSON Schema
Structured Output
(raw) {"commit": "aa6cff8"}
725e521
851c6da
JSON Schema
Structured Output
(raw) {"commit":"851c6da"}
1bc4cf7
efcccd8
JSON Schema
Structured Output
(raw) {"commit": "efcccd8"}
The bad commit that introduced the bug is the commit with hash `f11be15`. It is the first commit that caused a test failure. Therefore, the answer is `f11be15`.
117e596
JSON Schema
Structured Output
(raw) {"commit":"117e596"}
4782293
1fbc789
JSON Schema
Structured Output
(raw) {
"commit": "1fbc789"
}
Let's analyze step-by-step:
- **Commits (newest first):**
1. `f62a028` – Final config (FAIL)
2. `ac493d2` – Reset config to zero (FAIL)
3. `3403f48` – Set config value (PASS)
4. `8fed8b3` – Initial commit (PASS)
- **Test results:**
- All commits before `f62a028` passed.
- Both `ac493d2` and `f62a028` failed.
Since the build fails only after `f62a028`, and both previous commits passed, it means the **bad commit** is the most recent one:
**Commit hash:** `f62a028`
**Answer:**
`f62a028`
118ce6b
16aff1c
JSON Schema
Structured Output
(raw) {
"commit": "16aff1c"
}
d2e1030
c8da2cb
JSON Schema
Structured Output
(raw) {
"commit": "c8da2cb"
}
3675a90
4bc2ffa
JSON Schema
Structured Output
(raw) {
"commit": "4bc2ffa"
}
9e04a7b
6e206b7
JSON Schema
Structured Output
(raw) {
"commit": "6e206b7"
}
62ae6c3 (reset config to zero)
4258662
JSON Schema
Structured Output
(raw) {
"commit": "4258662"
}
**769cee6** (reset config to zero)
1af5a6a
JSON Schema
Structured Output
(raw) {
"commit": "1af5a6a"
}
6b1d7e0
76cc0ff
JSON Schema
Structured Output
(raw) {"commit":"76cc0ff"}
c81ad5d
51f930a
JSON Schema
Structured Output
(raw) {"commit":"51f930a"}
57cc098
1ffadd1
JSON Schema
Structured Output
(raw) { "commit": "1ffadd1"}
233e33e
9795569
JSON Schema
Structured Output
(raw) {"commit": "9795569"}
7021bcf
d100f75
JSON Schema
Structured Output
(raw) {"commit": "d100f75"}
**807c8f3**
The commit "reset config to zero" (807c8f3) is the first commit that failed testing, making it the commit that introduced the bug. The previous commit "set config value" (b76ffac) passed, and all subsequent commits continued to fail.
0198633
JSON Schema
Structured Output
(raw) {"commit": "0198633"}
Based on the test results, the build started failing at commit `bc9dd84 reset config to zero` and continued to fail in the subsequent commit `791e706 final config`.
Since the build was passing at `a2d75d0 set config value` and started failing at `bc9dd84 reset config to zero`, the bad commit is:
`bc9dd84` (or "reset config to zero")
f9cf059
JSON Schema
Structured Output
(raw) {"commit": "f9cf059"}
The build passed for commit `ddb6e97` but failed for the next commit. The first failing commit is `dab4139`, which introduced the regression.
dab4139
e86584a
JSON Schema
Structured Output
(raw) {"commit": "e86584a"}
The bad commit is the first one in the sequence where tests transition from PASS to FAIL.
- `b698d81` (Initial commit): PASS
- `c85721b` (set config value): PASS
- `ca689f3` (reset config to zero): **FAIL** (first failure)
- `ec89379` (final config): FAIL (consequent failure)
Since the failure starts at `ca689f3`, this commit introduced the bug.
ca689f3
fdbac11
JSON Schema
Structured Output
(raw) {"commit": "fdbac11"}
The bad commit is the first one that caused the test to fail. Based on the test results, the commit `1682972` (subject: "reset config to zero") introduced the bug.
1682972
935e436
JSON Schema
Structured Output
(raw) {"commit": "935e436"}
The git bisect approach would identify the first failing commit as the one that introduced the bug. In this case:
- The commit `16ce085 reset config to zero` is the first one that fails (exit code 1)
- All previous commits (`b3085b5` and `d631d81`) passed
Therefore, the bad commit is **`16ce085`** (or "reset config to zero").
ed44c77
JSON Schema
Structured Output
(raw) {"commit": "ed44c77"}
8181a1c
d16c947
JSON Schema
Structured Output
(raw) {"commit": "d16c947"}
**99e9055**
da69562
JSON Schema
Structured Output
(raw)
{
"commit": "da69562"
}
6b30d00
1facc0e
JSON Schema
Structured Output
(raw) { "commit": "1facc0e" }
4a8ff1f
cf07e22
JSON Schema
Structured Output
(raw)
{
"commit": "cf07e22"
}
1d9dba1
**bbf35c5** — *reset config to zero*
2607996
645b3e9
JSON Schema
Structured Output
(raw) {"commit": "645b3e9"}
c97ab5d
4c2d2dc (reset config to zero)
3b0bc35
**Bad commit: `7889df2` — "reset config to zero"**
**Reasoning:**
- `0e3cdbb` (Initial commit): PASS
- `c6b46e6` (set config value): PASS — still good
- `7889df2` (reset config to zero): **FAIL** — first failing commit
- `c531097` (final config): FAIL — still broken
Since `c6b46e6` passes and its immediate child `7889df2` is the first commit to fail, `7889df2` ("reset config to zero") is the commit that introduced the bug. The subsequent commit `c531097` fails because it inherits the breakage — it didn't fix it.
**The bad commit is `c80eb9c` ("reset config to zero")**
**Reasoning:**
- `cad9556` (Initial commit): PASS ✅
- `fdf99ed` (set config value): PASS ✅
- `c80eb9c` (reset config to zero): FAIL ❌ ← **first failing commit**
- `75f5230` (final config): FAIL ❌
Since the build passed at `fdf99ed` and began failing at `c80eb9c`, this is the commit that introduced the bug. The later commit `75f5230` simply inherited the broken state — a classic bisect result pointing to **`c80eb9c`**.
90b0de4
JSON Schema
Structured Output
(raw) {"commit":"90b0de4"}
**Bad commit: `d524dc6` ("reset config to zero")**
Reasoning: The build passed on commits `946b227` and `0172a06`, but first fails at `d524dc6` and remains failing at `246eadf`. Since a bisect identifies the bad commit as the first commit where the test transitions from PASS to FAIL, the bug was introduced in **`d524dc6`**.
**Bad commit: `c7ad9d9` ("reset config to zero")**
**Reasoning:**
Walking the history from oldest to newest:
- `38136e9` (Initial commit) — PASS ✅
- `3ae9f49` (set config value) — PASS ✅
- `c7ad9d9` (reset config to zero) — FAIL ❌ ← first failure
- `92d4908` (final config) — FAIL ❌ (inherits the broken state)
Since `c7ad9d9` is the first commit where the build transitions from passing to failing, it introduced the bug. The later commit `92d4908` still fails, but that's only because it builds on top of the already-broken state — a `git bisect` would converge on `c7ad9d9` as the culprit.
**Bad commit: `a57486b` (reset config to zero)**
**Reasoning:** Looking at the test results chronologically:
- `de4b64e` (Initial commit) → PASS
- `d5d6616` (set config value) → PASS
- `a57486b` (reset config to zero) → **FAIL** ← first failure
- `f7c6424` (final config) → FAIL
The build transitioned from passing to failing at commit `a57486b` ("reset config to zero"). Since `d5d6616` passes and every commit from `a57486b` onward fails, `a57486b` is the commit that introduced the bug. Resetting the config value to zero likely broke something the build depends on (e.g., division by the config value, or a required non-zero setting).
ae51b2a
JSON Schema
Structured Output
(raw) {"commit":"ae51b2a"}
**Bad commit: `df1a4f9`** — "reset config to zero"
**Reasoning:** Using a bisect-style analysis of the test results:
| Commit | Result |
|--------|--------|
| 8a30ef0 (Initial commit) | PASS ✅ |
| e5345a9 (set config value) | PASS ✅ |
| **df1a4f9 (reset config to zero)** | **FAIL ❌** |
| fc0367c (final config) | FAIL ❌ |
The last known-good commit is `e5345a9`, and the first known-bad commit is `df1a4f9`. Since the build passes at `e5345a9` and starts failing at `df1a4f9` (and remains broken in its descendant `fc0367c`), the bug was introduced by commit **`df1a4f9`** ("reset config to zero") — likely the zeroed-out config value violates an assumption the build/tests depend on.
**Bad commit: `c242695`** — "reset config to zero"
**Reasoning:**
- `6c3ef45` (Initial commit): PASS
- `832d270` (set config value): PASS
- `c242695` (reset config to zero): **FAIL** ← first failure
- `edfdb39` (final config): FAIL (still broken, but the bug was already introduced)
Since the build passes at `832d270` and first fails at `c242695`, the commit `c242695` ("reset config to zero") is the one that introduced the bug.
74fe0c9
db3786f
JSON Schema
Structured Output
(raw) {
"commit": "db3786f"
}
The first commit that caused thebuild to fail is **922a532**. This commit introduced the failure (exit code 1) in the "reset config to zero" test. Subsequent commits (e.g., 041f0ee) inherit the broken state and therefore also fail, but the root cause originates from **922a532**.
**Answer:** `922a532` (or the commit subject “reset config to zero”).
ede4fab
JSON Schema
Structured Output
(raw) {
"commit": "ede4fab"
}
f77a190
9dc2018
JSON Schema
Structured Output
(raw) {
"commit": "9dc2018"
}
02d72eb
JSON Schema
Structured Output
(raw) { "commit":"02d72eb" }
060e4a1
9553a5b
JSON Schema
Structured Output
(raw) {
"commit": "9553a5b"
}
3e25021
3e598f8
JSON Schema
Structured Output
(raw) {
"commit": "3e598f8"
}
d7178f4
9a287a9
JSON Schema
Structured Output
(raw) {
"commit": "9a287a9"
}
fe49a0b
49d0f3b
JSON Schema
Structured Output
(raw) {"commit": "49d0f3b"}
74757ee reset config to zero
d560581
JSON Schema
Structured Output
(raw) {
"commit": "d560581"
}
c6cc5f3
e247023
JSON Schema
Structured Output
(raw) {
"commit": "e247023"
}
56bc3d4
5d87599
JSON Schema
Structured Output
(raw) {"commit":"5d87599"}
0aa2e9e
4cbd0d7
JSON Schema
Structured Output
(raw) {"commit":"4cbd0d7"}
b7e3735
6b5aa9a
JSON Schema
Structured Output
(raw) {"commit":"6b5aa9a"}
5825e45
33dbd40
JSON Schema
Structured Output
(raw) {"commit":"33dbd40"}
464c04b
deeaa0d
JSON Schema
Structured Output
(raw) {"commit":"deeaa0d"}
0b4909f
237a2f0
JSON Schema
Structured Output
(raw) {"commit":"237a2f0"}
cc6a308
24d81b7
JSON Schema
Structured Output
(raw) {"commit":"24d81b7"}
a720e67
0d7e868
JSON Schema
Structured Output
(raw) {"commit":"0d7e868"}
b37230a reset config to zero
b6e6007
JSON Schema
Structured Output
(raw) {"commit":"b6e6007"}
89c316e
682d01e
JSON Schema
Structured Output
(raw) {"commit":"682d01e"}
46ec106
c5cc2b7
JSON Schema
Structured Output
(raw) {"commit":"c5cc2b7"}
adce435
4a4a2fc
JSON Schema
Structured Output
(raw) {"commit":"4a4a2fc"}
1c26c8d
d3b60e5
JSON Schema
Structured Output
(raw) {"commit":"d3b60e5"}
7b20841
2cacb62
JSON Schema
Structured Output
(raw) {"commit":"2cacb62"}
3182aa6
e518593
JSON Schema
Structured Output
(raw) {"commit":"e518593"}
d9eb770
238f2ad
JSON Schema
Structured Output
(raw) {"commit":"238f2ad"}
9de6883
caf2f4b
JSON Schema
Structured Output
(raw) {"commit":"caf2f4b"}
e822ce2
77e21e6
JSON Schema
Structured Output
(raw) {"commit":"77e21e6"}
27705e0
e33a458
JSON Schema
Structured Output
(raw) {"commit":"e33a458"}
9837594
be201d4
JSON Schema
Structured Output
(raw) {"commit":"be201d4"}
6ba999c
a8f4c8a
JSON Schema
Structured Output
(raw) {"commit":"a8f4c8a"}
aa759ac
bbb8519
JSON Schema
Structured Output
(raw) {"commit":"bbb8519"}
c208e1e
fa324e3
JSON Schema
Structured Output
(raw) {"commit":"fa324e3"}
49125d0
b2b693d
JSON Schema
Structured Output
(raw) {"commit":"b2b693d"}
3a527ef
6dc5f89
JSON Schema
Structured Output
(raw) {"commit":"6dc5f89"}
67e29b9
70babd2
JSON Schema
Structured Output
(raw) {"commit":"70babd2"}
eef48f7
05782cb
JSON Schema
Structured Output
(raw) {"commit":"05782cb"}
c0e5e71
a1500f0
JSON Schema
Structured Output
(raw) {"commit":"a1500f0"}
0807a64
019e768
JSON Schema
Structured Output
(raw) {"commit":"019e768"}
f7d012b
78919a0
JSON Schema
Structured Output
(raw) {"commit":"78919a0"}
206af45
a6098dd
JSON Schema
Structured Output
(raw) {"commit":"a6098dd"}
6ce0dc2
3691c90
JSON Schema
Structured Output
(raw) {"commit":"3691c90"}
3742d4f
efa3b52
JSON Schema
Structured Output
(raw) {"commit":"efa3b52"}
7c5cb00
0ff31b9
JSON Schema
Structured Output
(raw) {"commit":"0ff31b9"}
9c9b11f
a8d99ce
JSON Schema
Structured Output
(raw) {"commit":"a8d99ce"}
337fb1d
6039328
JSON Schema
Structured Output
(raw) {"commit":"6039328"}
10012f5
0ddaa5e
JSON Schema
Structured Output
(raw) {"commit":"0ddaa5e"}
faa593d
c581d42
JSON Schema
Structured Output
(raw) {"commit":"c581d42"}
150bd72 (reset config to zero)
d9de52e
JSON Schema
Structured Output
(raw) { "commit": "d9de52e" }
7a8c67a
6c0cb78 – “reset config to zero”
b680daa
JSON Schema
Structured Output
(raw) {
"commit": "b680daa"
}
1c3cf15
573a69b
JSON Schema
Structured Output
(raw) { "commit": "573a69b" }
d24261a
313a018
JSON Schema
Structured Output
(raw) { "commit": "313a018" }
**Process**
The tests pass for the first two commits (`aa36ec7` and `60437e4`).
The next commit `64d3e1a` introduces a failure, and the subsequent commit `e40efa2` also fails.
Since the failure appears at `64d3e1a`—the earliest point where the tests break—this is the commit that introduced the bug.
**Answer**
`64d3e1a`
fc961a4
JSON Schema
Structured Output
(raw) { "commit": "fc961a4" }
bba2790
0a2e3ec
JSON Schema
Structured Output
(raw) { "commit": "0a2e3ec" }
d8cf008 (reset config to zero)
72a2c96
JSON Schema
Structured Output
(raw) {"commit": "72a2c96"}
0dee434
5f8b74c
JSON Schema
Structured Output
(raw) {"commit": "5f8b74c"}
0d1b682
00a5f8b
JSON Schema
Structured Output
(raw) {"commit": "00a5f8b"}
c97ab5d
38e2359
JSON Schema
Structured Output
(raw) {
"commit": "38e2359"
}
The bad commit breaks the build, and using a binary search approach, we find that the commit "reset config to zero" (576633d) introduced the bug. Here's the step-by-step reasoning:
1. **Initial test results**:
- `138ecbf` (Initial) → PASS
- `b963371` (set config) → PASS
- `576633d` (reset config) → FAIL
- `b184c38` (final config) → FAIL
2. **Binary search midpoint**: Test a commit between `b963371` (last good) and `576633d` (first bad). There are no intermediate commits, so the first bad commit is **576633d**.
**Answer**: 576633d
5835ed9
JSON Schema
Structured Output
(raw) {
"commit": "5835ed9"
}
The bad commit is **bfb2d76**, as it is the first commit where the tests failed, following the last passing commit (b2d17e3). Subsequent commits either retained or exacerbated the issue but did not fix it.
**Answer:** bfb2d76
f22dc8c
JSON Schema
Structured Output
(raw) {
"commit": "f22dc8c"
}
93e8f68
dc4c7be
JSON Schema
Structured Output
(raw) {"commit": "dc4c7be"}
The bad commit is the first one that introduced a test failure. Since the test results show that `5aeaa1f reset config to zero` is the first commit where the test fails (after passing for `4b7fcbe`), this is the commit that introduced the bug.
5aeaa1f
ea25138
JSON Schema
Structured Output
(raw) {"commit": "ea25138"}
The bad commit is 6ddfebf, as it is the first commit in the history where the test results transition from passing (in 5ad4a10) to failing (6ddfebf). Subsequent commits (3e6106d) also fail, confirming that 6ddfebf introduced the bug.
Answer: 6ddfebf
3571476
JSON Schema
Structured Output
(raw) {
"commit": "3571476"
}
a381a58
0b80634
JSON Schema
Structured Output
(raw) {
"commit": "0b80634"
}
The bad commit is identified by tracing the first failure in the test results. Since the initial commits (a37a6c4 and b3f3a02) pass, but the next commit (60729ef) fails, the bug was introduced here. Subsequent failures (86ec811) are likely due to this initial breakage.
**Bad commit hash:**
`60729ef`
**Or commit subject line:**
`reset config to zero`
8c73c5c
JSON Schema
Structured Output
(raw) {"commit": "8c73c5c"}
Looking at the test results:
- **d1eaa2f** (Initial commit): PASS
- **d12fd7d** (set config value): PASS
- **48f1e1b** (reset config to zero): FAIL
- **45e519b** (final config): FAIL
The first commit where tests fail is **48f1e1b** "reset config to zero". This is the commit that introduced the bug.
c57a2fa
JSON Schema
Structured Output
(raw) {"commit": "c57a2fa"}
Based on the test results, I can see that:
1. `38a634c Initial commit`: PASS
2. `f3f9aa2 set config value`: PASS
3. `2878663 reset config to zero`: FAIL ← First failure
4. `f36e986 final config`: FAIL
The bad commit is **2878663** (reset config to zero), as this is the first commit where the tests started failing.
dd30353
JSON Schema
Structured Output
(raw) {"commit": "dd30353"}
Based on the test results, I can see that:
- Commit 765f868 (Initial commit): PASS
- Commit 0966c20 (set config value): PASS
- Commit 0975cbc (reset config to zero): FAIL
- Commit 5bb3f32 (final config): FAIL
The tests pass up through commit 0966c20, but fail starting with commit 0975cbc. This indicates that commit 0975cbc introduced the bug.
The bad commit is: **0975cbc**
8cd9bf2
JSON Schema
Structured Output
(raw) {"commit": "8cd9bf2"}
Looking at the test results by commit:
1. `32c4a18 Initial commit`: PASS
2. `1556f79 set config value`: PASS
3. `8e8724b reset config to zero`: FAIL
4. `1512923 final config`: FAIL
The first commit where the tests failed is `8e8724b reset config to zero`. Since the tests were passing before this commit and then started failing, this is the commit that introduced the bug.
The bad commit is: `8e8724b`
239403a
JSON Schema
Structured Output
(raw) {"commit": "239403a"}
Based on the test results, I can see that:
- Commit 01e9d75 (Initial commit): PASS
- Commit 5e867ee (set config value): PASS
- Commit e35eee3 (reset config to zero): FAIL
The bad commit is **e35eee3** ("reset config to zero") - this is the first commit where tests started failing.
4c03ad9
JSON Schema
Structured Output
(raw) {"commit": "4c03ad9"}
3646efb
06be1dd
JSON Schema
Structured Output
(raw) {
"commit": "06be1dd"
}
4318957
7861cb5
JSON Schema
Structured Output
(raw) {
"commit": "7861cb5"
}
a49ce92
9f2d0fa
JSON Schema
Structured Output
(raw) {
"commit": "9f2d0fa"
}
80e222e
fc2953c
JSON Schema
Structured Output
(raw) {
"commit": "fc2953c"
}
11b9972
a94764b
JSON Schema
Structured Output
(raw) {
"commit": "a94764b"
}
f44cbc3
c81f357
JSON Schema
Structured Output
(raw) {
"commit": "c81f357"
}
1b7ec32
ec61d67
JSON Schema
Structured Output
(raw) { "commit": "ec61d67" }
0e262be
28cfe1c
JSON Schema
Structured Output
(raw) { "commit": "28cfe1c" }
The test results show that the build passed for `8acc0ca set config value`. However, the subsequent commit `c4ef091 reset config to zero` caused the build to fail (FAIL). Since `c4ef091` is the first commit in the history that introduced the failure, it is the bad commit. The next commit, `ad7a38d`, also fails, but it did not introduce the bug; it merely continued the broken state.
Therefore, the bad commit is:
c4ef091
dc67185
JSON Schema
Structured Output
(raw) {
"commit": "dc67185"
}
da88ab2
696f1a9
JSON Schema
Structured Output
(raw) {
"commit": "696f1a9"
}
b5b52f5
48b4acf
346036f
70b4886
9445031
3887274
71cf4e6
4e506fd
2257edf
4bab5ab
5df576b
The bad commit is **9bff8ef** ("reset config to zero").
**Reasoning:** The test results show that the build was passing through commit `c71e1ef` and first failed at commit `9bff8ef`. This is the commit that introduced the bug. The subsequent commit (`2ddd247`) also fails because it inherits the broken state from `9bff8ef`.
The bad commit is **a0548b8** ("reset config to zero").
**Reasoning:**
- `091d156` (Initial commit): PASS ✅
- `9bdc9ce` (set config value): PASS ✅
- `a0548b8` (reset config to zero): **FAIL** ❌ ← Bug introduced here
- `3d4ce5b` (final config): FAIL ❌ (still broken)
The build transitioned from PASS to FAIL at commit `a0548b8`, making it the commit that introduced the bug.
7c24498
Based on the test results, the build was passing at commit `3d992e1` and started failing at commit `e94056c`. Therefore, the bad commit that introduced the bug is:
**e94056c**
552d412
The bad commit is **73a6078** ("reset config to zero").
**Reasoning:** Looking at the test results chronologically:
- `1889f4b` Initial commit → PASS
- `3528345` set config value → PASS
- `73a6078` reset config to zero → **FAIL** (first failure)
- `3bca3d0` final config → FAIL
The first commit that causes the build to fail is `73a6078`, which means this is the commit that introduced the bug.
The bad commit is **`832e43e`** ("reset config to zero").
Here's the reasoning:
- `563ce9e` (Initial commit): ✅ PASS
- `6b8c5b5` (set config value): ✅ PASS
- **`832e43e` (reset config to zero): ❌ FAIL** ← First failure
- `fae8604` (final config): ❌ FAIL
The build was passing at `6b8c5b5` and started failing at `832e43e`. Therefore, commit **`832e43e`** is the one that introduced the bug.
The bad commit is **87940f3**.
**Reasoning:** Looking at the test results in chronological order:
- `ca5e6db` (Initial commit): ✅ PASS
- `37e74e7` (set config value): ✅ PASS
- `87940f3` (reset config to zero): ❌ FAIL ← first failure
- `8acd1de` (final config): ❌ FAIL
The transition from PASS to FAIL happens at commit `87940f3` ("reset config to zero"), making it the commit that introduced the bug.
50aebcd
The bad commit is **605b25d** ("reset config to zero").
**Reasoning:**
- `75ac086` Initial commit → PASS ✅
- `d1514dc` set config value → PASS ✅
- `605b25d` reset config to zero → **FAIL ❌** (first failure)
- `c76d62a` final config → FAIL ❌
The last good commit was `d1514dc`. The very next commit, `605b25d` ("reset config to zero"), is where the build first breaks. This is the commit that introduced the bug.
24db72e
5b42e76
JSON Schema
Structured Output
(raw) { "commit": "5b42e76" }
4614e02
2551481
JSON Schema
Structured Output
(raw) { "commit": "2551481" }
69bb8af
bff800b
JSON Schema
Structured Output
(raw) { "commit": "bff800b" }
dcf9f82
e18f3f6
JSON Schema
Structured Output
(raw) { "commit": "e18f3f6" }
476b9ac
53fac11
JSON Schema
Structured Output
(raw) { "commit": "53fac11" }
4614320
19694ac
JSON Schema
Structured Output
(raw) { "commit": "19694ac" }
8271807
7837e39
JSON Schema
Structured Output
(raw) { "commit": "7837e39" }
684cb84
d76c45d
JSON Schema
Structured Output
(raw) { "commit": "d76c45d" }
9a94726
e8bf9f8
JSON Schema
Structured Output
(raw) { "commit": "e8bf9f8" }
b9bea33<|end_message|>
4ad1ca1
ce1306b
JSON Schema
Structured Output
(raw) {
"commit": "ce1306b"
}
62cddb5
624b889
a65fbe0
JSON Schema
Structured Output
(raw) {
"commit": "a65fbe0"
}
e918777
5a4ce91
JSON Schema
Structured Output
(raw) { "commit": "5a4ce91" }
fff038a
6af3b72
The build first fails at `ec8de77`, so that is the bad commit.
**ec8de77** (or "reset config to zero")
36a377c
d56d0fd
JSON Schema
Structured Output
(raw) {"commit":"d56d0fd"}
dd56d20
The tests show that commits 40ec770 and 4627df2 both exit with code 0 (PASS). The very next commit in the linear history, dd56d20, is the first to exit with code 1 (FAIL). Therefore dd56d20 is the commit that introduced the regression; the subsequent commit 0e58d05 merely inherits the same failure. This is the classic “first failing commit” result produced by a binary-search or linear walk over the history.
3bdb18f
JSON Schema
Structured Output
(raw) {"commit":"3bdb18f"}
efb9dab
9dbaddf
JSON Schema
Structured Output
(raw) {"commit":"9dbaddf"}
2479e02
The test results show a clean transition from PASS to FAIL between commits 721a468 and 2479e02; therefore 2479e02 is the first commit whose tree produces a failing build and is the commit that introduced the bug. Later commits remain failing, which is consistent with the bug having already been present. The remaining commits are either known-good (before the failure) or are irrelevant (after the failure).
fd800b4
JSON Schema
Structured Output
(raw) {"commit": "fd800b4"}
72910d7
3e3c881
JSON Schema
Structured Output
(raw) {"commit":"3e3c881"}
f3e45ec
2d83374
JSON Schema
Structured Output
(raw) {"commit":"2d83374"}
442d153
5df5686
JSON Schema
Structured Output
(raw) {"commit":"5df5686"}
008be1d
5208a8a
JSON Schema
Structured Output
(raw) {"commit":"5208a8a"}
3177b0c
fb859b4
JSON Schema
Structured Output
(raw) {
"commit": "fb859b4"
}
ab56180
b4615df
JSON Schema
Structured Output
(raw) {"commit":"b4615df"}
f6a79c4
1b6fc86
JSON Schema
Structured Output
(raw) {
"commit": "1b6fc86"
}
ec28f77
8bd1e4e
210a9b2
873b545
07126e4
JSON Schema
Structured Output
(raw) { "commit": "07126e4" }
26215d6
37764f4
JSON Schema
Structured Output
(raw) { "commit": "37764f4" }
df2b804
49cd355
536a1f2
JSON Schema
Structured Output
(raw) { "commit": "536a1f2" }
bb2bdff
31fe377
ad803be
JSON Schema
Structured Output
(raw) { "commit": "ad803be" }
c82194e
a622699
JSON Schema
Structured Output
(raw) {
"commit": "a622699"
}
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: 4ee3001
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: 56d9cc5
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Extra data: line 1 column 3 (char 2)
Failure: Failed to parse structured JSON response: Extra data: line 1 column 3 (char 2)
Invalid JSON. Output: The **bad commit** is:
**c92d56f**
**Reason:**
- The initial commit (`c7d8bf5`) passed.
- After `c92d56f`, the build still passed, so it's not this one.
- The next commit (`1c0d4a0`) failed, but we need to find the *first* commit that caused the build to break from passing to failing. However, since both `c92d56f` and `1c0d4a0` lead to failure, and the problem states there is **one bad commit**, we look for the commit whose change directly caused the build to fail when applied after all previous commits.
But let's check the sequence:
- Pass → Pass → **Pass** → **FAIL** (after c92d56f)
- Then FAIL again after c1c0d4a0
Since the build fails at `1c0d4a0`, but also fails at `c92d56f`, and the problem says only **one bad commit**, it means the commit that actually broke the build must be the one that changed something that caused the failure.
Given the test outputs, the **first commit that causes a failure** after a passing state is **c92d56f**.
However, if the build fails at `1c0d4a0`, but `c92d56f` passed, then `c92d56f` is not the culprit. But the problem says "one bad commit", so likely the commit that introduced the bug is the one that made the build fail **from a passing state**.
If `c92d56f` passes, then the next commit (`1c0d4a0`) fails, so that would be the bad commit.
**Final Answer:**
`1c0d4a0`
---
**Summary Table:**
| Commit Hash | Result |
|-------------|----------|
| 11c5df2 | FAIL |
| c92d56f | PASS |
| 1c0d4a0 | FAIL |
| c7d8bf5 | PASS |
So the **bad commit** is:
```
1c0d4a0
```
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: bff4eb1
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 2 (char 1)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 2 (char 1)
Invalid JSON. Output:
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Invalid JSON. Output:
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
Failure: Failed to parse structured JSON response: Expecting value: line 1 column 1 (char 0)
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)
c444b3d
Failure: Expected target hash/prefix or subject 'reset config to zero'
d7600
JSON Schema
Structured Output
(raw) {
"commit": "d7600"
}
Failure: Expected target hash/prefix or subject 'reset config to zero'
(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-2fd3fe6f-56c7-9341-9907-b7d5dba294e7","request_id":"2fd3fe6f-56c7-9341-9907-b7d5dba294e7"}', '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-20fa813e-1ee4-93ca-ae40-693d9cbaa2f0","request_id":"20fa813e-1ee4-93ca-ae40-693d9cbaa2f0"}', '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-086d9249-93c7-9910-99cc-62eeef9458a0","request_id":"086d9249-93c7-9910-99cc-62eeef9458a0"}', '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-c9aca390-bfb2-9878-af25-e01ec6385b65","request_id":"c9aca390-bfb2-9878-af25-e01ec6385b65"}', '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-b33e298b-3eac-9ff4-98d3-2b37e5c0ce73","request_id":"b33e298b-3eac-9ff4-98d3-2b37e5c0ce73"}', '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-4952e304-c385-9b4d-888f-d97fd2f918d6"}\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-80ec52de-0c62-9fda-a31d-a3ac26d43563"}\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-0a10970b-3016-9ca7-af2b-d3e5ee80f045"}\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-36b190f3-672f-9af6-9dfd-c50a75dd3ba9"}\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-d8d16608-ec96-9aac-9a66-01cb97256b19"}\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-e0cf5572-ec58-9b83-ab6e-ea3b624568c9"}\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-d75edfe2-4c16-975c-bab8-6090a2b2f185","request_id":"d75edfe2-4c16-975c-bab8-6090a2b2f185"}', '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-cf4ae14b-cacc-9880-b4ca-cd727f346ef0","request_id":"cf4ae14b-cacc-9880-b4ca-cd727f346ef0"}', '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-c7cf6625-2197-9ff5-bb2f-7dc16eefd2de","request_id":"c7cf6625-2197-9ff5-bb2f-7dc16eefd2de"}', '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-d33f039a-7455-9fa6-a335-2d930034223a","request_id":"d33f039a-7455-9fa6-a335-2d930034223a"}', '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-90ebb05f-3203-9fdd-9e10-04c520819943","request_id":"90ebb05f-3203-9fdd-9e10-04c520819943"}', '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-16b22307-4df5-9afb-87f3-469228e6677b","request_id":"16b22307-4df5-9afb-87f3-469228e6677b"}', '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-12fd7189-a13f-99dd-8411-2344e1f23066","request_id":"12fd7189-a13f-99dd-8411-2344e1f23066"}', '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-657b59e0-2fa8-98c5-b45b-fdd7c5f0751b","request_id":"657b59e0-2fa8-98c5-b45b-fdd7c5f0751b"}', '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-c152275c-a3de-9f14-88ca-07f38a77803d","request_id":"c152275c-a3de-9f14-88ca-07f38a77803d"}', '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-6eae4724-232e-9d12-8b13-7c3475771552","request_id":"6eae4724-232e-9d12-8b13-7c3475771552"}', 'provider_name': 'Alibaba', 'is_byok': False}}, 'user_id': 'user_3FrVBkmFqVIuZ58dEh7AU8vhXUV'}
Invalid JSON. Output: 5ac2172{"commit": "5ac2172"}
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: The first commit that fails is **2305e54** (subject: "reset config to zero").
So the bad commit is:
**2305e54**
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: de750e5
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: 4e27cb4{"commit": "4e27cb4"}
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Extra data: line 1 column 5 (char 4)
Failure: Failed to parse structured JSON response: Extra data: line 1 column 5 (char 4)
Invalid JSON. Output: The build first fails at commit **ff82f02** ("reset config to zero"), so that’s the bad commit.
Answer: `ff82f02` (or "reset config to zero")
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: f1d49af
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: 549c61a
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Extra data: line 1 column 4 (char 3)
Failure: Failed to parse structured JSON response: Extra data: line 1 column 4 (char 3)
Invalid JSON. Output: 9472cd5
JSON Schema
Structured Output
Structured Output Error
Failed to parse structured JSON response: Extra data: line 1 column 5 (char 4)
Failure: Failed to parse structured JSON response: Extra data: line 1 column 5 (char 4)