NC Bench
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Run: 2026-02-17-01KHMPF0V834W498PEEV5CE6W6
Run Details
Model:
GPT-4o Mini (temp=1)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
27.8s
Cost:
$0.001030
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 air inside the abandoned Tube station clung to Harlow Quinn like a second skin, heavy and damp with the scent of mold and stale moisture. It was the kind of place that thrived on silence, a forgotten corner of London now cracked and crumbling, but still pulsing with a kind of dark energy. Quinn stood at the mouth of the old platform, her sharp brown eyes scanning the scene before her. Broken tiles crunched beneath her polished boots, but she paid the noise no mind; she had
been trained
to focus through the distractions. A flickering overhead light cast an unsettling glow over the area, illuminating the shadows that sprawled like long fingers reaching for the past. Quinn's keen instincts told her something was off. She pulled the worn leather
watch
from her wrist, glancing discreetly at the time. Only minutes had passed since the call came through about the body discovered here, deep beneath the pulsating veins of the city. The victim lay sprawled on the cold concrete, pale against the darkness—a young man, perhaps in his thirties, dressed in a jacket too expensive for this wasteland. Blood pooled underneath him, black in the unforgiving light, but the wound itself seemed clean, devoid of the usual chaos that would mark a struggle. A glimmer caught her eye, and she moved closer, careful to avoid disturbing the scene. Beside the body, a small brass compass lay nestled in a hand that wouldn’t clasp it anymore, its face
etched
with sigils she recognized all too well. “Detective Quinn,” a voice called
softly
, pulling her gaze away from the grisly sight. She turned to find her colleague, Officer Smith, crouched nearby, his sandy hair tousled like he’d just rolled out of bed. He was a good officer, but his knack for leaning towards the supernatural sometimes clouded his judgment. “I think I’ve got something,” he continued, gesturing towards the body. “Look at the compass. The sigils—I've seen those before.” Quinn’s brow
furrowed
. She didn’t need a reminder of what she
was looking
at. “This isn’t a crime of magic, Smith. The wound is too clean.” “No, that’s just it,” he pressed, standing and shifting his
weight
. “It suggests something else entirely. The kind of signature you’d find in the Veil Market. You know there are rumors—some say it's an entry point.” Her jaw tightened. The Veil Market, with its whispers of black magic and enchantments. She knew it well — hidden and transitory, moving with the full moons beneath the streets of London. “Or it could be a simple—and
very
human—murder. This won't help us with the case.” “But... the body. It’s not just a regular murder,” he persisted. “There’s something more to it. The blood, the compass, the location— all of it points to something unnatural.” Quinn couldn’t shake the feeling that there was truth in his words, but the logic still slipped through her fingers like smoke. She focused on the details — the finer points. “What do we know about him?” “He’s a local bartender, popular in the area. Had some odd acquaintances,” Smith said, pulling out his notebook. “And he was last reported seen at The Veil Market less than a week ago. You know, I heard he’d been asking about some rare alchemical substances.” Quinn rolled her shoulders, suppressing the wariness inching its way up her spine. Alchemy. Magical substances. Those were all linked to the occult. But the clean cut of the death weighed heavily on her. Though another piece slipped into place, she stepped back from the body, allowing her gaze to roam the station. Grey walls whispered secrets she had yet to decode. It was here, in this cramped, underground realm, that the usual rules
began to
warp. “Look at the pockmarked walls,” Quinn said
suddenly
, pointing. “They’re chipped, but with something like a ritualistic pattern.” Smith squinted at the wall, nodding
slowly
. “That could be connected to the other reports we’ve gotten. You think he got too deep with the wrong people?” “Maybe,” Quinn conceded. “But the message is unclear. If he was killed over something he owed, there would be signs of a struggle. There’s no sign of a fight.” “Except the compass. Isn’t that a sign?” He stepped aside, giving Quinn room to peer closer at the object. “It’s a tool used to
navigate
aligned energies and rifts; maybe that’s what they wanted from him?” Quinn nodded, but her thoughts
were racing
. The compass had meaning, and it shared a language she could nearly grasp. Artisans, Shades, and the Veil—they all belonged to the same secretive network. But she wouldn’t concede to misinformation or folklore; she couldn’t afford to let the darkness cloud her judgment. “Or it could have been left behind. There are plenty of stories about how things in the Market find their way into the wrong hands,” she interjected, hoping to keep Smith grounded. They surveyed the victim once more. Quinn’s critical gaze landed on a detail she’d missed the first time she looked: the bracelet around his wrist, embellished with fine carvings that mirrored the sigils on the compass. “Wait.” She knelt, reaching for it. “What’s the story with this?” “Could be any old accessory,” Smith said, peering at it closely. “But it looks expensive and old. Might mean something more.” Quinn’s brow
furrowed
. “Or could tie him to someone with some knowledge coming out of The Veil.” She stood, ambition sparking. “We need a good look into his connections. Who he spoke to, who he owed money to, where he was getting this ‘alchemical substances’ from.” “Agreed, but we should also think about those sigils,” Smith suggested, excitement creeping into his tone. “If they have ties to the Market, we could be looking at more than one death here.” Quinn sighed deeply. The information felt incomplete. Her mind raced to her missing partner, DS Morris, and the unexplained circumstances lingering even now. Loss haunted her, but it became a drive that furnished clarity amid fog. “I need to ensure we cover e
very
angle before this leads us anywhere else.” For a moment, she stepped
slightly
further away from the body, a little distance to collect her thoughts, gathering strength. She’d grown tired of casting aside instinct. A fleeting need for certainty coursed through her. With purpose, she turned back to Smith. “I want to dig into e
very
name connected to The Veil Market. Even if it means ruffling some feathers.” She pointed towards the compass. "And the instant you find a lead on that, I'm in. Something about this feels wrong... and I'm not trusting anyone but my instincts.” Smith nodded, determination surging through him as he jotted down notes. Quinn's gaze lingered on the body, the compass, the darkness around them—this was only the beginning. With the shadows now whispering truths to be uncovered, she felt the pulse of the city race beneath her feet, and she knew she’d have to tread
carefully
through its veins.
Evaluation details
Result
Evaluator
Details
Meta Data
33.3333%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
10
adverbTagCount
3
adverbTags
0
"a voice called softly, pulling her gaze away from the grisly sight [softly, away]"
1
"Quinn said suddenly, pointing [suddenly]"
2
"Smith said, peering at it closely [closely]"
48.5861%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1167
totalAiIsmAdverbs
6
found
0
adverb
"carefully"
count
1
1
adverb
"slightly"
count
1
2
adverb
"slowly"
count
1
3
adverb
"softly"
count
1
4
adverb
"suddenly"
count
1
5
adverb
"very"
count
1
highlights
0
"carefully"
1
"slightly"
2
"slowly"
3
"softly"
4
"suddenly"
5
"very"
100.0000%
AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
100.0000%
AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
57.1551%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1167
totalAiIsms
5
found
0
word
"furrowed"
count
2
1
word
"weight"
count
1
2
word
"etched"
count
1
3
word
"navigate"
count
1
highlights
0
"furrowed"
1
"weight"
2
"etched"
3
"navigate"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
0
maxInWindow
0
found
(empty)
highlights
(empty)
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
62
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
1
narrationSentences
62
filterMatches
0
"watch"
hedgeMatches
0
"began to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
79
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
26
mean
44.69
std
22.71
cv
0.508
sampleLengths
0
95
1
67
2
94
3
14
4
58
5
26
6
36
7
47
8
29
9
37
10
45
11
77
12
18
13
27
14
29
15
36
16
82
17
36
18
11
19
21
20
46
21
33
22
50
23
35
24
55
25
58
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
62
matches
0
"been trained"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
2
totalVerbs
141
matches
0
"was looking"
1
"were racing"
93.8773%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
766
adjectiveStacks
0
stackExamples
(empty)
adverbCount
36
adverbRatio
0.04699738903394256
lyAdverbCount
13
lyAdverbRatio
0.016971279373368148
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
79
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
79
mean
14.71
std
7.81
cv
0.531
sampleLengths
0
26
1
28
2
18
3
23
4
23
5
8
6
14
7
22
8
27
9
25
10
15
11
27
12
14
13
21
14
17
15
11
16
9
17
3
18
11
19
12
20
11
21
25
22
3
23
11
24
18
25
15
26
11
27
18
28
22
29
9
30
6
31
18
32
27
33
13
34
1
35
2
36
7
37
11
38
19
39
9
40
15
41
9
42
9
43
7
44
20
45
3
46
26
47
19
48
17
49
7
84.3882%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
0
diversityRatio
0.5063291139240507
totalSentences
79
uniqueOpeners
40
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
10
fancyCount
10
fancyTags
0
"a voice called softly, pulling her gaze away from the grisly sight (call softly, pull gaze away)"
1
"he continued, gesturing towards the body (continue, gesture)"
2
"he pressed, standing and shifting his weight (press, stand shift)"
3
"he persisted (persist)"
4
"Smith said, pulling out his notebook (say, pull out)"
5
"Quinn said suddenly, pointing (say suddenly, point)"
6
"Quinn conceded (concede)"
7
"she interjected, hoping to keep Smith grounded (interject, hope keep ground)"
8
"Smith said, peering at it closely (say, peer)"
9
"Smith suggested, excitement creeping into his tone (suggest, creep)"
83.3729%