NC Bench
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Run: 2026-02-17-01KHMPFPMBQ3JM6KQD3E6E718K
Run Details
Model:
GPT-4o Mini (temp=0)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
22.8s
Cost:
$0.001028
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 was thick with
the scent of damp concrete and something else—something metallic that clung to the back of Detective Harlow Quinn’s throat as she stepped into the abandoned Tube station beneath Camden. The
flicker
ing fluorescent lights overhead cast a sickly pallor over the scene, illuminating the chaos that had unfolded in the shadows. A body lay sprawled on the ground, limbs twisted at unnatural angles, a pool of dark crimson pooling around it like a grotesque halo. Quinn’s sharp jaw tightened as she surveyed the scene, her brown eyes narrowing. The victim, a young man in his twenties, wore a leather jacket that had seen better days. His face was pale, eyes wide open in a final expression of terror. She knelt beside him, her worn leather
watch
creaking
softly
as she adjusted her position. The details were all wrong. The way he lay, the absence of any struggle marks, the eerie stillness of the station—it felt wrong, like a puzzle with pieces that refused to fit. “Detective Quinn,” a voice called from behind her, breaking her concentration. It was DS Markham, a colleague she had worked with for years. He approached, his brow
furrowed
, hands shoved deep into the pockets of his coat. “What do you think?” Quinn stood, brushing the dust from her knees. “I think this isn’t just a mugging gone wrong. Look at the blood pattern.” She gestured to the crimson pool, her voice steady. “It’s too contained. There’s no sign of a struggle, no defensive wounds. He didn’t even try to fight back.” Markham scratched his head, glancing at the body. “Maybe he was caught off guard. You know how it is down here. It’s a rough area.” “Rough doesn’t explain the lack of any signs of a struggle,” Quinn replied, her tone clipped. “And look at his jacket. It’s too nice for someone who frequents this part of town. He’s not a local.” Markham frowned, his eyes darting around the station. “So what are you
suggesting? That he
was lured here?” Quinn’s gaze drifted to the walls, where faded graffiti whispered of a different world. The Veil Market, she thought, recalling the rumors she had heard—an underground market that sold enchanted goods and information, a place where the supernatural mingled with the mundane. “It’s possible,” she said
slowly
. “But we need to consider the implications.” “Implications?” Markham
echoed
, skepticism lacing his voice. “You think this is connected to the occult?” Quinn’s heart raced at the thought. She had lost her partner, DS Morris, three years ago under circumstances that still haunted her. The case had
been shrouded
in mystery, with threads leading to the supernatural that she had yet to
unravel
. “I think we need to keep an open mind,” she replied, her voice firm. “There’s more to this than meets the eye.” As she stepped back, her gaze fell on a small brass object
glinting
in the dim light near the victim’s hand. She knelt again, her fingers brushing against the cool metal. It was a compass, its face
etched
with protective sigils, the needle spinning erratically. Quinn’s breath caught in her throat. The Veil Compass. She had heard whispers of it, a tool crafted by a Shade artisan, attuned to supernatural energy. “Markham,” she called, her voice sharper now. “Come look at this.” He approached, his expression shifting from skepticism to curiosity as he crouched beside her. “What is it?” “The Veil Compass,” she said, her heart pounding. “It points toward the nearest supernatural rift or portal. This isn’t just a murder; it’s a message.” Markham’s brow
furrowed
deeper. “A message? From whom?” Quinn stood, the compass clutched
tightly
in her hand. “That’s what we need to find out. We need to talk to Eva.” “Eva?” Markham
echoed
, confusion
flicker
ing across his face. “Your friend? What does she have to do with this?” “She’s an occult researcher,” Quinn replied, her mind racing. “If anyone can help us understand what’s happening here, it’s her. We need to get to the bottom of this before it spirals out of control.” Markham nodded, though uncertainty lingered in his eyes. “Alright, but we need to secure the scene first. I’ll call it in.” Quinn
watch
ed as he stepped away, her thoughts swirling. The Veil Market was a dangerous place, a realm where the lines between reality and the supernatural blurred. She had always been cautious, but now, with the compass in hand, she felt a pull—a call to uncover the truth that had eluded her for so long. As Markham made the call, Quinn turned her attention back to the body. She studied the victim’s face, searching for any clues that might reveal his identity.
A flicker of recognition
sparked in her mind. She had seen him before, in the company of a group that had been under her radar for months—a clique that had
been rumored
to dabble in dark magic and forbidden rituals. “Quinn!” Markham’s voice broke through her thoughts. “We need to go. The coroner’s on their way.” She nodded,
reluctantly
tearing her gaze from the victim. “Let’s move.” As they made their way out of the station, Quinn’s mind raced with possibilities. The compass felt heavy in her pocket, a
weight
that promised answers but also danger. She had to tread
carefully
; the world of the supernatural was treacherous, and she had already lost too much. Outside, the night air was crisp, a
stark
contrast to the stale atmosphere of the Tube station. Quinn inhaled deeply, grounding herself. She had a lead, a thread to follow, and she wouldn’t let it slip away. “Are you sure about this?” Markham asked as they climbed into the car. “I mean, diving into the occult? It’s risky.” Quinn met his gaze, her resolve hardening. “I’ve faced risks before, Markham. This is different. I need to know what happened to Morris, and I need to know who’s behind this.” He sighed, the
weight
of her determination evident in his expression. “Alright, but if we’re doing this, we do it my way. We stick to the facts, no wild theories.” Quinn smirked,
a flicker of amusement
breaking through her tension. “You know me better than that. I’ll keep my theories to myself—for now.” As they drove through the dimly lit streets of London, Quinn’s thoughts turned to Eva. Her friend had always been a
beacon
of knowledge, a guiding light in the murky waters of the unknown. If anyone could help her decipher the meaning behind the compass and the murder, it was Eva Kowalski. The city blurred past, a
tapestry
of shadows and light, but Quinn’s focus remained sharp. She was on the cusp of something significant, a revelation that could change everything. And this time, she wouldn’t let fear hold her back. The truth awaited, and she
was determined
to find it, no matter the cost.
Evaluation details
Result
Evaluator
Details
Meta Data
91.6667%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
8
adverbTagCount
1
adverbTags
0
"she said slowly [slowly]"
56.4839%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1149
totalAiIsmAdverbs
5
found
0
adverb
"carefully"
count
1
1
adverb
"reluctantly"
count
1
2
adverb
"slowly"
count
1
3
adverb
"softly"
count
1
4
adverb
"tightly"
count
1
highlights
0
"carefully"
1
"reluctantly"
2
"slowly"
3
"softly"
4
"tightly"
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
1149
totalAiIsms
14
found
0
word
"tapestry"
count
1
1
word
"beacon"
count
1
2
word
"flicker"
count
2
3
word
"glinting"
count
1
4
word
"stark"
count
1
5
word
"furrowed"
count
2
6
word
"weight"
count
2
7
word
"echoed"
count
2
8
word
"etched"
count
1
9
word
"unravel"
count
1
highlights
0
"tapestry"
1
"beacon"
2
"flicker"
3
"glinting"
4
"stark"
5
"furrowed"
6
"weight"
7
"echoed"
8
"etched"
9
"unravel"
66.6667%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
3
maxInWindow
2
found
0
label
"air was thick with"
count
1
1
label
"flicker of emotion"
count
2
highlights
0
"The air was thick with"
1
"A flicker of recognition"
2
"a flicker of amusement"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
65
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
0
narrationSentences
65
filterMatches
0
"watch"
hedgeMatches
(empty)
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
87
matches
0
"suggesting? That he"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
31
mean
36.87
std
21.44
cv
0.582
sampleLengths
0
79
1
90
2
41
3
50
4
25
5
36
6
18
7
54
8
15
9
63
10
71
11
11
12
17
13
25
14
8
15
22
16
18
17
35
18
21
19
55
20
67
21
16
22
11
23
48
24
37
25
21
26
31
27
30
28
23
29
52
30
53
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
3
totalSentences
65
matches
0
"been shrouded"
1
"been rumored"
2
"was determined"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
0
totalVerbs
149
matches
(empty)
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
836
adjectiveStacks
0
stackExamples
(empty)
adverbCount
22
adverbRatio
0.02631578947368421
lyAdverbCount
9
lyAdverbRatio
0.01076555023923445
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
87
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
87
mean
13.14
std
6.77
cv
0.515
sampleLengths
0
34
1
21
2
24
3
13
4
17
5
13
6
15
7
5
8
27
9
11
10
12
11
14
12
4
13
8
14
23
15
19
16
8
17
17
18
16
19
20
20
8
21
10
22
14
23
28
24
5
25
7
26
7
27
8
28
6
29
16
30
19
31
14
32
8
33
21
34
10
35
14
36
6
37
3
38
17
39
7
40
4
41
14
42
3
43
8
44
17
45
4
46
4
47
9
48
13
49
8
57.0881%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
2
diversityRatio
0.3563218390804598
totalSentences
87
uniqueOpeners
31
18.7500%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
8
fancyCount
5
fancyTags
0
"a voice called from behind her, breaking her concentration (call break)"
1
"Quinn replied, her tone clipped (reply, clip)"
2
"she said slowly (say slowly)"
3
"she said, her heart pounding (say, pound)"
4
"Quinn replied, her mind racing (reply, race)"
81.8033%