NC Bench
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Run: 2026-02-17-01KHMPEB8NGG3FH3XZ1KHQYRDF
Run Details
Model:
GPT-4o Mini (temp=0)
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
26.5s
Cost:
$0.001013
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 flickering fluorescent lights overhead cast a sickly pallor over the scene, illuminating the remnants of a world long forgotten. Graffiti sprawled across the walls, a chaotic
tapestry
of colors and messages, but it was the body that drew her attention. Lying sprawled on the ground, the victim was a young man, perhaps in his late twenties, his face twisted in a final grimace. Blood pooled around him, dark and
glistening
, soaking into the cracked tiles. Quinn knelt beside him, her sharp jawline set in a grim line as she examined the scene with military precision. The victim’s clothes
were tattered
, and a small bone token lay clutched in his hand, its surface
etched
with strange symbols. “Detective Quinn,” a voice called from behind her, breaking the heavy silence. It was DS Markham, her colleague, his brow
furrowed
as he approached. “What do you think?” Quinn straightened, her brown eyes narrowing as she studied the body. “Looks like a mugging gone wrong,” she replied, though the words felt hollow. The bone token was a clear indication that this was no ordinary crime scene. “But something doesn’t add up.” Markham scratched his head, glancing around the station. “You think it’s connected to the clique? They’ve been known to hang around here.” Quinn’s gaze
flicked
to the walls, where the graffiti
seemed to
pulse with a life of its own. “Maybe. But the way he’s lying… it’s almost like he was waiting for someone.” She knelt again, her fingers brushing against the victim’s wrist, noting the absence of a watch. “And look at his hands. No defensive wounds. He didn’t fight back.” Markham frowned, stepping closer. “So, you think he knew his attacker?” “Or he was lured here,” Quinn said, her mind racing. “This place is a known entry point to the Veil Market. It’s possible he was drawn in by something—or someone.” “Or someone in the clique,” Markham suggested, crossing his arms. “They’ve been getting bolder lately. You know that.” Quinn stood, her gaze sweeping the area. “Bolder, yes, but this feels different. The token… it’s not just a trinket. It’s a key to something.” She turned to Markham, her voice low. “We need to find out what he was doing here.” Markham nodded, but his expression was skeptical. “You think it’s worth digging deeper? We could be stepping into something we don’t understand.” Quinn’s jaw tightened. “That’s exactly why we need to dig. If there’s a connection to the clique, we can’t afford to ignore it.” She stepped back, her eyes scanning the shadows that clung to the corners of the station. “We need to talk to Eva.” “Your friend the occult researcher?” Markham raised an eyebrow. “You think she’ll know anything about this?” “She might,” Quinn replied, her mind already racing ahead. “She’s been studying the Veil Market for years. If there’s a supernatural element to this, she’ll have insights we don’t.” Markham sighed, but he nodded. “Alright, let’s get her in. But we need to be careful. If the clique is involved, they won’t take kindly to us poking around.” Quinn’s lips pressed into a thin line as she turned back to the body. “I’m not afraid of them. I’m afraid of what they might be hiding.” As they left the station, the chill of the underground air clung to Quinn’s skin, a reminder of the darkness that lurked just beneath the surface of the city. She could feel the
weight
of the case pressing down on her, the unresolved questions gnawing at her mind. The loss of her partner, DS Morris, still haunted her, a specter that refused to fade. She had lost him to something she couldn’t understand, and now, it felt as if the shadows
were closing
in again. The streets above
were bustling
with life, a
stark
contrast to the grim scene they had just left. Quinn and Markham made their way to the British Museum, where Eva Kowalski worked. The museum
loomed
ahead, its grand façade a
testament
to the history it housed. Quinn pushed through the doors, the familiar scent of old books and polished wood enveloping her. “Eva!” she called, her voice
echoing
through the vast atrium. A moment later, Eva appeared, her curly red hair bouncing as she hurried toward them, round glasses perched precariously on her freckled nose. “Harlow! What’s going on?” Quinn wasted no time. “We found a body in the Veil Market. I need your expertise.” Eva’s
eyes widened
, and she tucked a loose strand of hair behind her ear, a nervous habit Quinn had come to recognize. “A body? In the Market? That’s… unusual.” “Unusual doesn’t begin to cover it,” Quinn replied, leading Eva to a quiet corner of the museum. “He had a bone token in his hand. I need to know what it means.” Eva’s brow
furrowed
as she took the token from Quinn, her fingers brushing over the
intricate
symbols. “This is a key to the Market, but it’s also a warning. It’s used to summon something—someone. It’s dangerous.” “Dangerous how?” Markham interjected, crossing his arms. “If the wrong person gets their hands on it, they could open a rift,” Eva explained, her voice low. “And once that happens, anything could come through.” Quinn’s heart raced. “So, he was lured here to open a rift? But why?” Eva shook her head, her expression grave. “I don’t know. But if he was trying to summon something, it could explain why he didn’t fight back. He might have thought he was in control.” Quinn’s mind raced, piecing together the fragments of the puzzle. “What if he was trying to summon a Shade? They’re known to be drawn to the Market. If he was involved with the clique, they could have used him as a pawn.” Markham shifted uneasily. “And if that’s the case, we need to find out who he was working with. We can’t let this escalate.” Quinn nodded, determination hardening in her chest. “We need to dig deeper. If the clique is involved, we need to know how far their reach goes.” As they left the museum, Quinn felt the
weight
of the case settle on her shoulders. The shadows
were closing
in, and she
was determined
to uncover the truth, no matter the cost. The Veil Market was a dangerous place, but it was also a key to understanding the darkness that had taken so much from her. And this time, she wouldn’t let it slip through her fingers.
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
"Quinn replied, her mind already racing ahead [already]"
100.0000%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1114
totalAiIsmAdverbs
0
found
(empty)
highlights
(empty)
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
1114
totalAiIsms
13
found
0
word
"tapestry"
count
1
1
word
"testament"
count
1
2
word
"flicked"
count
1
3
word
"glistening"
count
1
4
word
"loomed"
count
1
5
word
"intricate"
count
1
6
word
"stark"
count
1
7
word
"furrowed"
count
2
8
word
"weight"
count
2
9
word
"echoing"
count
1
10
word
"etched"
count
1
highlights
0
"tapestry"
1
"testament"
2
"flicked"
3
"glistening"
4
"loomed"
5
"intricate"
6
"stark"
7
"furrowed"
8
"weight"
9
"echoing"
10
"etched"
66.6667%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
2
maxInWindow
2
found
0
label
"eyes widened/narrowed"
count
1
1
label
"air was thick with"
count
1
highlights
0
"eyes widened"
1
"The air was thick with"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
52
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
1
narrationSentences
52
filterMatches
(empty)
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
77
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
32
mean
34.72
std
20.05
cv
0.578
sampleLengths
0
75
1
76
2
28
3
43
4
22
5
60
6
11
7
30
8
18
9
42
10
22
11
45
12
16
13
29
14
29
15
27
16
85
17
62
18
10
19
27
20
16
21
29
22
32
23
36
24
7
25
27
26
14
27
34
28
42
29
23
30
26
31
68
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
2
totalSentences
52
matches
0
"were tattered"
1
"was determined"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
3
totalVerbs
123
matches
0
"were closing"
1
"were bustling"
2
"were closing"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
673
adjectiveStacks
0
stackExamples
(empty)
adverbCount
15
adverbRatio
0.022288261515601784
lyAdverbCount
4
lyAdverbRatio
0.005943536404160475
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
77
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
77
mean
14.43
std
7.69
cv
0.533
sampleLengths
0
34
1
20
2
21
3
23
4
12
5
20
6
21
7
12
8
12
9
4
10
11
11
13
12
14
13
5
14
8
15
14
16
18
17
30
18
12
19
4
20
7
21
10
22
20
23
10
24
8
25
7
26
25
27
10
28
7
29
15
30
3
31
36
32
6
33
9
34
7
35
9
36
20
37
5
38
24
39
14
40
13
41
29
42
19
43
16
44
21
45
18
46
14
47
14
48
16
49
10
67.5325%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
3
diversityRatio
0.42857142857142855
totalSentences
77
uniqueOpeners
33
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
8
fancyCount
7
fancyTags
0
"a voice called from behind her, breaking the heavy silence (call break)"
1
"she replied, though the words felt hollow (reply, feel)"
2
"Quinn said, her mind racing (say, race)"
3
"Markham suggested, crossing his arms (suggest, cross)"
4
"Quinn replied, her mind already racing ahead (reply, already race)"
5
"Quinn replied, leading Eva to a quiet corner of the museum (reply, lead)"
6
"Eva explained, her voice low (explain)"
83.8745%