NC Bench
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Run: 2026-02-17-01KHMPGGSJ3NVP9P6ZBJK9PRWA
Run Details
Model:
GPT-4o Mini (temp=1)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
17.0s
Cost:
$0.001075
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
Rain drummed against the pavement, a relentless tattoo that painted the night in slick reflections of neon and shadow. Detective Harlow Quinn stepped from the narrow alleyway into an abandoned Tube station beneath Camden — a derelict space, now cloaked in the murmurs of history long forgotten. The musty air held a heavy stillness, interrupted only by the soft
echo
of her leather shoes against the cracked tiles. She could feel the
weight
of expectation in her bones, an urgency to make sense of the chaos sprawled out before her. Crime scenes often possessed their own peculiar energy, but this one was different. There was something haunting about the place, a murmur of stories swirling through the air. Harlow’s sharp brown eyes slid over the surroundings, her military precision evident in the way she
cataloged
each detail with
methodical
care: the flickering overhead lights swinging like pendulums, the graffiti-stained walls adorned with cryptic symbols. A slender figure leaned against the wall, arms crossed, the dim light catching the
glint
of round glasses and fiery red curls. It was Eva Kowalski, her long-time friend and an occult researcher, who
was supposed
to be at the British Museum’s archives. Eva’s freckled complexion seemed more pronounced in the gloom, a contrast to the severity of the scene. She shot Harlow a look that mingled concern with eagerness, as if the chaos held something
tantalizing
. Harlow stepped closer, the scent of damp concrete mingling with the metallic tang of spilled blood. “What do you have?” she asked, eyeing the two uniformed officers cordoning off a small area. “Not much.” Eva pushed her glasses up the bridge of her nose, a nervous habit that mirrored the way she tucked her hair behind her left ear. “I found what could be a clue, but… it's bizarre.” She pointed toward the horizon of shadows cast by the overhead light. At her feet lay a bone token,
etched
with an indecipherable symbol that seemed almost to shimmer. “It’s a marker — they used these to gain access to the Veil Market.” Harlow's brow
furrowed
. The Veil Market was no ordinary black market; it was a hidden place, one that dealt in the supernatural — enchanted goods, banned substances, secret information. But even as Harlow
processed
this lead,
a sense of unease
pooled in her gut. “You’re telling me someone tied this victim to the Market?” Eva paced, or maybe it was more of a fidget, her fingers
dancing
over the leather satchel slung over her shoulder. “Not just that. The way they were killed… It’s as if they were a sacrifice or something.” Harlow knelt beside the body, her heart thumping in a relentless rhythm. The victim lay sprawled grotesquely, their eyes glossed over in death. Whoever they had been, it was clear they hadn’t gone quietly. Lacerations crisscrossed the skin — deep, precise cuts that bore no resemblance to a standard knife wound. “Yeah, if that's the case, it’s a ritualistic killing… but why here?” “Because it’s easier to access. The Veil Market moves locations every full moon. Tonight might have been the perfect time to—” “—to sacrifice someone to open a rift or portal,” Harlow interrupted, her pulse quickening as the connections
began to
weave together in her mind. They weren’t just after goods; they were after something more dangerous, something that involved dark rites and the opening of gateways between this world and the next. She stood, stepping away from the body, trying to shake off the sudden swell of dread. “But who?” Eva hesitated, her fingers gripping the satchel, her voice dropping to a conspiratorial whisper. “There’s something else I noticed. The markings on the walls — they’re not just graffiti. Some of them resemble protective sigils. Like someone is trying to ward off something.” Harlow’s gaze swept to the graffiti, each symbol shifting under scrutiny, matching the tangle of thoughts in her head. The walls whispered secrets, caressed by the slow creep of mold, just as the victim spoke of something
sinister
lurking beneath the mundane surface of the city. “They’re afraid of something.” “Yes,” Eva affirmed, exhilaration flaring in her green eyes. “But if they were willing to kill to
keep that something
at bay…” Quinn’s jaw tightened, her thoughts racing sideways. “Then they’re already in trouble.” An abrupt chill seeped into the air, slicing through the humidity like a blade. It clawed at Harlow’s skin, making the hairs on her arms prickle as intuition told her they
were approaching
a precipice. Pulling her leather
watch
tight around her wrist, she turned toward a darkened corner of the station where the shadows gathered thicker than elsewhere. “We need to split up.” “Split up?” Eva’s voice pitched higher, worry creasing her brow. “There’s more to uncover here, I can feel it. You look into what you can find here; I’ll check around the perimeter.” Hesitation
flickered
in Eva’s eyes but
quickly
gave way to resolute understanding. “Be careful, Harlow.” As Harlow slipped deeper into the shadows, her heart drummed a warning against her ribs. The air felt heavy, pregnant with something approaching, something that wanted out. She reached for her phone, checking the frame, noting the illuminated hour: nearly midnight. The Market would be awakening soon, feeding on secrets and sabotage. With each careful step, she reminded herself of the key details: locations, timings, the familiar pathways leading to the supernatural. The Veil Compass came to mind, an item Harlow had once referenced in a half-remembered case, a tool that could guide seekers to hidden realms. But she pushed the thought away — she wouldn’t lose focus. The real darkness lie here, hidden in the abandoned station. A faint noise drifted through the underground passage, a rustling that sent Harlow’s heart into overdrive. She turned
sharply
toward the sound, steeling herself. Light
flickered
from the far end of the tunnel, illuminating haphazard walls bearing unnerving symbols. The fear she felt morphed into fascination; shadows reached out like tendrils, willing her deeper into the darkness. When she rounded the corner, her breath caught. There, illuminated by faint light, was what
seemed to
be a hollow ring fixed into the ground, flecked with ash and glittering with remnants of burnt offerings. It was everything Eva had mentioned: a sigil, perhaps a summoning circle. Harlow knelt, studying its
intricate
designs. This wasn’t just some urban art — it was a conduit, something meant to bridge the gap. If the Market was indeed drawing from this energy, the body would be just the first spill. “Holy hell,” she whispered, realization dawning like a breaking storm. Calm determination surged within her as she reached toward the edge of the sigil, brushing her fingers against the cool stone. The clues were finally coming together. Here lay the heart of something
sinister
, a nexus of
otherworldly
energy begging to be unleashed. Quinn stood
quickly
, her expression sharpening into focus, thoughts racing as she scrambled back toward Eva. She needed to warn her friend; they would need each other now more than ever if they were to confront whatever
was brewing
in the darkened depths of the Veil Market. Harlow could feel the pulse of danger reverberating through the station, a haunting call that whispered one inescapable truth: they were not alone.
Evaluation details
Result
Evaluator
Details
Meta Data
50.0000%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
4
adverbTagCount
1
adverbTags
0
"she whispered, realization dawning like a breaking storm [like]"
75.1450%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1207
totalAiIsmAdverbs
3
found
0
adverb
"quickly"
count
2
1
adverb
"sharply"
count
1
highlights
0
"quickly"
1
"sharply"
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)
0.0000%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1207
totalAiIsms
16
found
0
word
"flickered"
count
2
1
word
"glint"
count
1
2
word
"otherworldly"
count
1
3
word
"sinister"
count
2
4
word
"methodical"
count
1
5
word
"cataloged"
count
1
6
word
"processed"
count
1
7
word
"intricate"
count
1
8
word
"tantalizing"
count
1
9
word
"furrowed"
count
1
10
word
"weight"
count
1
11
word
"dancing"
count
1
12
word
"echo"
count
1
13
word
"etched"
count
1
highlights
0
"flickered"
1
"glint"
2
"otherworldly"
3
"sinister"
4
"methodical"
5
"cataloged"
6
"processed"
7
"intricate"
8
"tantalizing"
9
"furrowed"
10
"weight"
11
"dancing"
12
"echo"
13
"etched"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"sense of foreboding"
count
1
highlights
0
"a sense of unease"
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
2
narrationSentences
62
filterMatches
0
"watch"
hedgeMatches
0
"began to"
1
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
75
matches
0
"keep that something"
91.5824%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
26
mean
46.58
std
21.92
cv
0.471
sampleLengths
0
90
1
64
2
77
3
32
4
80
5
54
6
38
7
63
8
21
9
51
10
18
11
43
12
50
13
22
14
12
15
64
16
10
17
22
18
15
19
52
20
66
21
57
22
47
23
50
24
43
25
70
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
62
matches
0
"was supposed"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
2
totalVerbs
180
matches
0
"were approaching"
1
"was brewing"
94.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1022
adjectiveStacks
1
stackExamples
0
"skin — deep, precise cuts"
adverbCount
29
adverbRatio
0.02837573385518591
lyAdverbCount
9
lyAdverbRatio
0.008806262230919765
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
75
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
75
mean
16.15
std
7.17
cv
0.444
sampleLengths
0
19
1
28
2
21
3
22
4
13
5
15
6
36
7
22
8
21
9
17
10
17
11
16
12
16
13
27
14
22
15
17
16
14
17
3
18
26
19
15
20
10
21
21
22
17
23
12
24
11
25
11
26
17
27
12
28
21
29
24
30
27
31
16
32
2
33
14
34
29
35
19
36
27
37
4
38
9
39
13
40
7
41
5
42
14
43
21
44
24
45
5
46
10
47
22
48
12
49
3
88.8889%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
0
diversityRatio
0.5333333333333333
totalSentences
75
uniqueOpeners
40
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
4
fancyCount
3
fancyTags
0
"Harlow interrupted, her pulse quickening as the connections began to weave together in her mind (interrupt, quicken begin weave)"
1
"Eva affirmed, exhilaration flaring in her green eyes (affirm, flare)"
2
"she whispered, realization dawning like a breaking storm (whisper, dawn like)"
82.3304%