NC Bench
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Run: 2026-02-17-01KHMMGA0916GHBBTE80B99AXM
Run Details
Model:
Mistral Large
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
34.5s
Cost:
$0.012730
Model input
System
You are an expert novelist with a gift for vivid, immersive prose. You write in tight third-person limited point of view with a strong narrative voice. Your prose is clean, precise, and engaging — you favor strong verbs, concrete details, and natural-sounding dialogue. You will be given a story bible (codex) containing canonical details about characters, locations, items, and lore. Use these details to ground your writing in the established world. Stay consistent with the codex. Write only the prose of the scene. Do not include titles, chapter headings, markdown formatting, or any commentary before or after the scene.
User/Human
<codex> <character id="4416" name="Detective Harlow Quinn" aliases="Quinn, Detective Quinn, Harlow" pronouns="she/her" species="Human" storyRole="Antagonist"> <eyeColor>brown</eyeColor> <hair>closely cropped salt-and-pepper</hair> <height>5'9"</height> <age>41</age> <jawline>sharp jaw</jawline> <watch>worn leather watch on her left wrist</watch> <bearing>military precision</bearing> <description>A Metropolitan Police detective with 18 years of decorated service who suspects the clique is involved in criminal activity.</description> <backstory>She lost her partner, DS Morris, during a case three years ago under unexplained circumstances that had supernatural origins she doesn't yet understand.</backstory> </character> <character id="4414" name="Eva Kowalski" aliases="Eva, Evie" pronouns="she/her" species="Human" storyRole="Best Friend"> <eyeColor>green</eyeColor> <hair>curly red</hair> <height>5'4"</height> <age>26</age> <glasses>round glasses</glasses> <satchel>worn leather satchel full of books</satchel> <freckles>freckled complexion</freckles> <nervousHabit>tucking hair behind her left ear</nervousHabit> <description>Aurora's childhood friend and an occult researcher.</description> <backstory>Moved to London two years before Aurora and works as a research assistant at the British Museum's restricted archives. She holds a master's degree in Ancient History from Oxford.</backstory> </character> <location id="856" name="The Veil Market" aliases="Veil Market, the Market, underground market" realm="Earth"> <currentLocation>abandoned Tube station beneath Camden</currentLocation> <entryRequirement>bone token</entryRequirement> <schedule>moves locations every full moon</schedule> <description>A hidden supernatural black market that sells enchanted goods, banned alchemical substances, and information.</description> </location> <item id="2004" name="Veil Compass" aliases="the Compass, shadow compass" type="Tool" origin="The Veil Market"> <casingMaterial>small brass compass</casingMaterial> <faceMarkings>face etched with protective sigils</faceMarkings> <needle>points toward the nearest supernatural rift or portal</needle> <patina>casing has a patina of verdigris</patina> <creator>crafted by a Shade artisan</creator> <description>A compass attuned to supernatural energy.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the mystery genre. A detective arrives at a crime scene in an unusual location. Something is wrong — the evidence doesn't add up. A colleague is present, offering a different interpretation. Through careful observation and deduction, the detective begins to see what others have missed. Use the codex entries above as your world reference for characters and setting. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
The abandoned Tube station smelled of damp concrete and something older, something like rust and burnt copper. Detective Harlow Quinn stepped off the last rung of the maintenance ladder and onto the platform, her boots scuffing against the cracked tiles.
The air was thick with
the hum of portable floodlights, their harsh glow casting long shadows across the peeling posters of 1970s rock bands. She adjusted the worn leather
watch
on her wrist, its strap creaking with the movement, and took in the scene. A uniformed officer stood near the edge of the platform, his face pale under the artificial light. He nodded at her as she approached. "Detective Quinn. Down here." Quinn didn’t return the nod. Her sharp jaw tightened as she took in the body sprawled across the tracks. A man, mid-thirties, dressed in a rumpled suit that had seen better days. His limbs were splayed at unnatural angles, as if he’d been dropped from a great height. But it was his face that made her stomach clench. His eyes were wide, frozen in terror, and his mouth
was stretched
into a silent scream. Not the usual pallor of death—this was something else. "Who called it in?" she asked, her voice low. "Anonymous tip. Came through the station’s old emergency line. Dispatch traced it to a payphone near King’s Cross, but by the time we got there, the caller was gone." Quinn crouched beside the body, her knees popping. She pulled a pair of nitrile gloves from her pocket and snapped them on. The victim’s fingers
were curled
into claws, the nails broken and caked with dirt. She lifted one hand
gently
, turning it over. No defensive wounds. No signs of a struggle. Just that look of sheer, unadulterated horror. "Time of death?" she asked. "ME’s on her way, but preliminary estimate is between midnight and two a.m.," the officer said. "No ID on the body yet." Quinn stood, her gaze sweeping over the tracks. The station was supposed to be sealed off, part of the old Northern Line that had been decommissioned decades ago. The entrance
was boarded
up, the turnstiles rusted shut. But the crime scene tape fluttering in the stale air told a different story. Someone had been here. Someone who knew how to get in. "Detective." She turned. DS Priya Kapoor stood at the far end of the platform, her dark eyes scanning the scene with the same intensity Quinn felt in her own gut. Kapoor was new to the team, transferred from Manchester six months ago, but she had a sharp mind and a knack for noticing the things others missed. "Priya," Quinn acknowledged. "What’ve you got?" Kapoor stepped closer, her boots silent on the tiles. "No signs of forced entry. The boards over the entrance were intact when uniforms arrived. No footprints in the dust on the platform, either." She gestured to the ground. "Except for ours." Quinn frowned. "That’s impossible. He didn’t just materialize down here." "Agreed. But look at this." Kapoor led her to the edge of the platform, where a narrow service tunnel branched off into darkness. She shone her torch inside. The beam caught something
glinting
on the ground—a small, brass object half-buried in the dirt. Quinn crouched again, brushing the grime away with her gloved fingers. It was a compass, its casing
etched
with strange symbols that made her skin prickle. The needle
wasn’t pointing
north. It
was spinning
wildly, as if caught in some invisible current. "Where the hell did this come from?" she muttered. Kapoor crossed her arms. "Maybe the victim had it on him. Maybe it’s a clue." Quinn turned the compass over in her hand. The brass was cold, despite the stuffy air of the tunnel. The symbols weren’t just decorative—they looked like wards. Protective sigils. She’d seen enough weird shit in her career to know when something wasn’t right. And this? This was *wrong*. She stood abruptly, pocketing the compass. "We need to canvass the area. Someone had to have seen something. This station’s not exactly invisible." Kapoor hesitated. "Quinn, you’re not thinking this is... I don’t know, *supernatural*?" Quinn shot her a look. "I’m thinking this is a homicide. And right now, the only thing that makes sense
is that our
victim came down here willingly. Or he was brought here. Either way, someone knew about this place." She glanced at the compass in her palm. "And someone knew about *this*." Kapoor exhaled
sharply
. "You
really
think this is connected to the other cases?" Quinn didn’t answer. The other cases. The ones that had started cropping up six months ago—bodies found in abandoned buildings, in sealed-off alleys, in places that shouldn’t have been accessible. All of them with the same look of terror on their faces. All of them with no signs of forced entry. No witnesses. No leads. And then there was Morris. Her partner’s face flashed in her mind—his easy grin, the way he’d always had a pack of gum in his pocket, the way he’d looked the last time she’d seen him, standing in the doorway of that derelict church, telling her to wait outside. *Just for a minute, Quinn. I’ll be right back.* She hadn’t waited. And he hadn’t come back. Quinn shook the memory away. "We treat this like any other case. We follow the evidence." Kapoor nodded, but her expression was skeptical. "And the compass?" Quinn tucked it deeper into her pocket. "I’ll take it to the lab. See if they can tell us what the hell it is." --- The ME arrived an hour later, her team wheeling in a gurney with practiced efficiency. Dr.
Elena
Vasquez was a no-nonsense woman in her fifties, her dark hair streaked with silver and pulled into a tight bun. She crouched beside the body, her gloved hands moving with precision as she examined the victim’s wounds. "Lividity suggests he was moved post-mortem," she said, her voice clipped. "But the bruising on his arms—see here?—looks like he was restrained. Not by handcuffs. Something... smoother. Like rope, but without the texture." Quinn folded her arms. "Cause of death?" Vasquez hesitated. "I won’t know for sure until I get him on the table, but..." She peeled back the victim’s collar, revealing a series of dark, vein-like marks spreading up his neck. "These aren’t bruises. They look like... burns. But not from fire. More like... corrosion." Quinn’s stomach twisted. "Corrosion?" Vasquez stood, stripping off her gloves. "I’ll run tox screens, but I’ve seen this before. Three years ago. Your partner’s case." Quinn’s breath caught. Morris. His body had
been found
in that church, his skin marked with the same dark veins, his face frozen in the same silent scream. She turned away, her fingers curling into fists. Kapoor
was watching
her, her expression
unreadable
. "Quinn," Kapoor said quietly. "We need to talk about this." Quinn didn’t answer. She
was staring
at the compass in her hand, the needle still spinning
lazily
, as if drawn to something just out of sight. And then she saw it. A shadow moving at the edge of the platform. Not a shadow—*the* shadow. A
flicker
of something darker than the surrounding gloom, something that didn’t belong. It darted into the service tunnel, vanishing before she could get a proper look. Quinn was moving before she realized it, her boots pounding against the tiles as she sprinted toward the tunnel. The beam of her torch cut through the darkness, illuminating the crumbling brick walls, the rusted pipes, the thick layer of dust on the ground. And then she saw the footprints. Fresh. Small. Like someone had been standing here,
watch
ing. Watching *her*. She followed them deeper into the tunnel, her pulse hammering in her throat. The air grew colder, the silence heavier. The compass in her pocket burned against her thigh, the needle now still, pointing straight ahead. At the end of the tunnel, the footprints stopped. And there, scrawled in what looked like dried blood on the wall, were three words: *Find the Veil.*
Evaluation details
Result
Evaluator
Details
Meta Data
85.7143%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
7
adverbTagCount
1
adverbTags
0
"Kapoor said quietly [quietly]"
70.3484%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1349
totalAiIsmAdverbs
4
found
0
adverb
"gently"
count
1
1
adverb
"lazily"
count
1
2
adverb
"sharply"
count
1
3
adverb
"really"
count
1
highlights
0
"gently"
1
"lazily"
2
"sharply"
3
"really"
80.0000%
AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions
(empty)
found
0
"Elena"
100.0000%
AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
70.3484%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1349
totalAiIsms
4
found
0
word
"flicker"
count
1
1
word
"glinting"
count
1
2
word
"unreadable"
count
1
3
word
"etched"
count
1
highlights
0
"flicker"
1
"glinting"
2
"unreadable"
3
"etched"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"air was thick with"
count
1
highlights
0
"The air was thick with"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
110
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
0
narrationSentences
110
filterMatches
0
"watch"
hedgeMatches
(empty)
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
131
matches
0
"is that our"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
51
mean
26.24
std
21.59
cv
0.823
sampleLengths
0
84
1
28
2
83
3
9
4
29
5
59
6
5
7
22
8
62
9
1
10
56
11
6
12
41
13
10
14
43
15
42
16
9
17
15
18
48
19
23
20
12
21
53
22
13
23
55
24
5
25
53
26
8
27
16
28
10
29
24
30
1
31
54
32
33
33
7
34
46
35
4
36
21
37
28
38
15
39
10
40
26
41
5
42
40
43
44
44
6
45
9
46
2
47
36
48
9
49
15
96.9697%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
6
totalSentences
110
matches
0
"were splayed been dropped"
1
"was stretched"
2
"were curled"
3
"was supposed been decommissioned"
4
"was boarded"
5
"been found"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
4
totalVerbs
174
matches
0
"wasn’t pointing"
1
"was spinning"
2
"was watching"
3
"was staring"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1036
adjectiveStacks
0
stackExamples
(empty)
adverbCount
24
adverbRatio
0.023166023166023165
lyAdverbCount
6
lyAdverbRatio
0.005791505791505791
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
131
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
131
mean
10.21
std
8.33
cv
0.815
sampleLengths
0
17
1
23
2
24
3
20
4
17
5
7
6
4
7
5
8
14
9
13
10
16
11
10
12
16
13
9
14
9
15
29
16
8
17
14
18
14
19
8
20
3
21
5
22
7
23
5
24
16
25
6
26
8
27
20
28
9
29
14
30
4
31
7
32
1
33
2
34
27
35
27
36
3
37
3
38
9
39
29
40
3
41
2
42
8
43
23
44
5
45
15
46
11
47
15
48
5
49
11
54.6154%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
9
diversityRatio
0.36923076923076925
totalSentences
130
uniqueOpeners
48
32.1429%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
7
fancyCount
4
fancyTags
0
"Quinn acknowledged (acknowledge)"
1
"muttered (mutter)"
2
"she said, her voice clipped (say, clip)"
3
"Kapoor said quietly (say quietly)"
87.6552%