Run: 2026-09-25-01M3CKDJ6C8SC0NGXCBSG852C9

Run Details

Duration:
19.3s
Cost:
$0.019090
Provider:
Mistral

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

AI
The abandoned Tube station beneath Camden reeked of damp concrete and something older, something that clung to the back of the throat like rust. Detective Harlow Quinn stepped over the yellow police tape, her boots scuffing against the gritty floor. The beam of her torch cut through the gloom, illuminating the peeling posters on the walls—faded advertisements for long-forgotten plays and products, their edges curled with decades of neglect. The air was thick, stale, as if the place had been holding its breath for years. She adjusted the worn leather watch on her left wrist, the familiar weight a small comfort. Three years. Three years since Morris had vanished in a case that still gnawed at her, a case that had left her with more questions than answers. And now, this. The body lay sprawled near the old platform edge, a man in a rumpled suit, his tie askew as if he’d been dragged. His face was frozen in an expression of sheer terror, eyes wide, mouth slack. No visible wounds, no blood. Just the unnatural pallor of his skin, the way his fingers were curled into claws, as if he’d been trying to dig his way out of whatever had taken him. “No signs of struggle,” came a voice from behind her. Eva Kowalski stepped into the light, her round glasses glinting as she tucked a strand of curly red hair behind her left ear. Her satchel, a worn leather thing bulging with books, swung at her hip. “No defensive wounds, no trauma. Tox screen came back clean.” Harlow grunted. “Then what the hell killed him?” Eva crouched beside the body, her green eyes scanning the scene with an intensity that always made Harlow feel like she was missing something. “That’s the thing, isn’t it? He didn’t *die*. Not in any way we understand.” Harlow’s jaw tightened. She didn’t like riddles. She liked facts, evidence, things that added up. “You’re saying this is like Morris?” Eva hesitated, then nodded. “The same… absence. Like something reached in and just *took* him. No residue, no trace. Just… gone.” Harlow exhaled sharply through her nose. She didn’t believe in the supernatural. Not really. But three years of dead ends and whispers in the dark had worn down even her skepticism. She knelt beside Eva, her sharp jaw set. “Then where’s the body?” “That’s not the right question,” Eva murmured. She reached into her satchel and pulled out a small brass compass, its casing etched with intricate sigils, the metal dulled by a patina of verdigris. The needle didn’t point north. It wavered, then settled on the corpse’s chest. Harlow’s brow furrowed. “What is that?” “Veil Compass. Points toward the nearest supernatural rift.” Eva’s voice was quiet, almost reverent. “I got it at the Market.” “The *what* now?” Eva glanced up, her freckled face half-lit by the torchlight. “The Veil Market. It’s… a place. A hidden market for the supernatural. Moves every full moon. You need a bone token to get in.” Harlow’s grip on her torch tightened. “You’re telling me there’s a black market for *magic* under my city, and I’ve never heard of it?” Eva shrugged. “Most people don’t. It’s not exactly advertised.” Harlow stood abruptly, her military precision bearing making her seem taller than her 5’9”. “And you just *happen* to have a compass that points to… what, exactly?” “Portals. Rifts. Places where the veil between worlds is thin.” Eva stood too, brushing dust from her trousers. “This one’s fresh. The needle’s never this active unless something’s *very* close.” Harlow stared at the compass, then at the body. The man’s suit was cheap, his shoes scuffed. A low-level bureaucrat, maybe. Someone who wouldn’t normally be anywhere near a place like this. “Why would a guy like this be here?” Eva bit her lip. “Maybe he wasn’t supposed to be. Maybe he stumbled onto something he shouldn’t have.” Harlow’s mind raced. The station was abandoned, sure, but it wasn’t exactly a secret. Urban explorers, junkies, the occasional homeless person—plenty of people knew about it. But a supernatural black market? That was a different level of secrecy. “You think this is connected to the Market?” “It’s connected to *something*,” Eva said. “The compass doesn’t lie. There’s a rift here. Or there was.” Harlow crouched again, this time examining the ground around the body. The dust was disturbed, but not in the way she’d expect from a struggle. The patterns were… wrong. Too smooth, too deliberate. Like something had been dragged, but not by human hands. And then there were the marks on the walls—faint, but unmistakable. Symbols, etched into the grime. She ran her fingers over them, feeling the grooves beneath the dirt. “These aren’t graffiti,” she muttered. Eva leaned in, her breath quickening. “Those are sigils. Protective wards. Someone was trying to contain something.” Harlow’s stomach twisted. “Or keep something *out*.” A cold draft slithered down the platform, raising the hairs on the back of her neck. The torchlight flickered, though there was no wind, no reason for it to falter. Eva’s compass needle spun wildly, then pointed directly at the far wall. Harlow followed its gaze. The wall was solid, brick and mortar, but… there was something off about it. The bricks were too uniform, the mortar too fresh. She stepped closer, pressing her palm against the surface. The cold seeped through her gloves, biting at her skin. “It’s a door,” Eva whispered. Harlow pushed. Nothing. She pushed harder. Still nothing. Then, on a whim, she pressed her ear to the wall. A faint hum vibrated against her skull, like the distant thrum of machinery—or a heartbeat. She stepped back, her pulse quickening. “This isn’t right.” Eva’s eyes were wide behind her glasses. “It’s a rift. Or it was. Someone sealed it.” Harlow’s mind clicked. The body. The sigils. The compass. “He wasn’t the victim. He was the *sacrifice*.” Eva’s breath hitched. “What?” “Think about it. No trauma, no struggle. Just… gone. Like Morris.” The words tasted bitter. “Someone used him to open this. Or close it.” Eva’s nervous habit kicked in, her fingers twisting a lock of hair behind her left ear. “That’s… that’s dark magic, Harlow. The kind of thing that doesn’t just *happen*. Someone powerful did this. Someone who knows what they’re doing.” Harlow’s jaw clenched. She didn’t like the direction this was going. Didn’t like the way the air seemed to press in around her, the way the shadows at the edges of the torchlight seemed to writhe. “Then where’s the blood? The ritual? The *evidence*?” Eva shook her head. “Not all magic leaves a mess. Some of it… it’s cleaner than that.” Harlow wanted to argue, but the compass in Eva’s hand told a story she couldn’t ignore. The needle was steady now, unerring, pointing at the wall like an accusation. She turned back to the body, her sharp eyes missing nothing. The man’s pockets were empty—no wallet, no phone, no bone token. But his left hand was clenched around something. She pried his fingers open. A small, smooth bone chip, carved with the same sigils as the wall. Eva’s breath came out in a rush. “That’s the token. The entry fee.” Harlow’s stomach dropped. “He wasn’t just a sacrifice. He was *paying* for something.” Eva’s voice was barely a whisper. “Or someone.” The torchlight flickered again, and for a heartbeat, the wall in front of them seemed to shimmer, like heat rising off pavement. Harlow’s grip on the bone chip tightened. She could feel it—pressure, like the air before a storm. The compass needle spun, then pointed at the chip in her hand. She met Eva’s gaze. “This isn’t just a crime scene. It’s a *message*.” Eva nodded, her face pale. “And we’re not the only ones looking for it.” A sound echoed through the station—a scuff of a shoe, the faintest rustle of fabric. Harlow’s hand went to her sidearm, her body coiling like a spring. “We’re not alone.” Eva’s eyes darted to the darkness beyond the torchlight. “No. We’re not.” The shadows moved. Not with the flicker of the light, but with purpose. A figure stepped into the dim glow, tall and gaunt, their face obscured by a long coat and a wide-brimmed hat. They didn’t speak. Didn’t need to. The compass needle swung toward them, steady and sure. Harlow’s finger tightened on the trigger. “Police. Hands where I can see them.” The figure tilted their head, and for the first time, Harlow saw their eyes—black, depthless, like the void between stars. Then they smiled, and the torchlight dimmed, as if the very air had grown thicker. “Detective Quinn,” the figure said, their voice a dry whisper, like pages turning in an old book. “We’ve been expecting you.” Eva’s hand shot out, gripping Harlow’s arm. “Don’t. That’s not—” The figure raised a gloved hand, and the symbols on the wall flared to life, glowing a sickly green. The bone chip in Harlow’s palm burned cold. She didn’t think. She fired. The shot echoed like thunder in the confined space, but the figure was already gone, dissolving into the shadows like ink in water. The torchlight steadied, the symbols faded, and the only sound was the ragged breathing of the two women in the dark. Harlow lowered her gun, her hand shaking. “What the hell was that?” Eva’s grip on her arm didn’t loosen. “That,” she said, her voice unsteady, “was a Shade. A guardian of the Veil. And if they’re here, it means the Market is *very* interested in you.” Harlow stared at the bone chip in her hand, then at the body, then at the wall that wasn’t a wall. The pieces were starting to fit together, but the picture they formed was one she didn’t want to see. Morris hadn’t just vanished. He’d been taken. And whatever had taken him was still out there. And now, it was watching her.
created_at"2026-09-25T15:37:21.364Z" 9/25/2026, 3:37:21 PM
model"mistralai/mistral-medium-3.5-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency412
moderation_latency(null)
generation_time19272
tokens_prompt896
tokens_completion2609
native_tokens_prompt887
native_tokens_completion2368
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.0190905
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790350641-allzRXgKATTioYkl8l4t"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790350641-T7xlrRGNBhxOD5xYGaGS"
upstream_id"3c17795d525a426780add10ceb6c8dae"
provider_responses
0
endpoint_id"d21d316f-d540-4718-b36e-3beff85d0cf9"
id"3c17795d525a426780add10ceb6c8dae"
is_byokfalse
latency411
model_permaslug"mistralai/mistral-medium-3.5-20260430"
provider_name"Mistral"
status200
total_cost0.0190905
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags31
adverbTagCount2
adverbTags
0"Harlow stood abruptly [abruptly]"
1"She stepped back [back]"
dialogueSentences65
tagDensity0.477
leniency0.954
rawRatio0.065
effectiveRatio0.062
84.92% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1658
totalAiIsmAdverbs5
found
0
adverb"sharply"
count1
1
adverb"really"
count1
2
adverb"very"
count3
highlights
0"sharply"
1"really"
2"very"
100.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found(empty)
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
24.61% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1658
totalAiIsms25
found
0
word"gloom"
count1
1
word"familiar"
count1
2
word"weight"
count1
3
word"glinting"
count1
4
word"scanning"
count1
5
word"intensity"
count1
6
word"etched"
count2
7
word"intricate"
count1
8
word"wavered"
count1
9
word"furrowed"
count1
10
word"raced"
count1
11
word"stomach"
count2
12
word"flickered"
count2
13
word"vibrated"
count1
14
word"pulse"
count1
15
word"jaw clenched"
count1
16
word"whisper"
count2
17
word"could feel"
count1
18
word"echoed"
count2
19
word"flicker"
count1
highlights
0"gloom"
1"familiar"
2"weight"
3"glinting"
4"scanning"
5"intensity"
6"etched"
7"intricate"
8"wavered"
9"furrowed"
10"raced"
11"stomach"
12"flickered"
13"vibrated"
14"pulse"
15"jaw clenched"
16"whisper"
17"could feel"
18"echoed"
19"flicker"
66.67% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches2
maxInWindow2
found
0
label"stomach dropped/sank"
count1
1
label"jaw/fists clenched"
count1
highlights
0"stomach dropped"
1"jaw clenched"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences113
matches(empty)
92.29% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount2
narrationSentences113
filterMatches
0"watch"
1"feel"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences127
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen72
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans14
markdownWords14
totalWords1650
ratio0.008
matches
0"die"
1"took"
2"what"
3"magic"
4"happen"
5"very"
6"something"
7"out"
8"sacrifice"
9"happen"
10"evidence"
11"paying"
12"message"
13"very"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions11
unquotedAttributions0
matches(empty)
33.33% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions61
wordCount1364
uniqueNames10
maxNameDensity1.98
worstName"Harlow"
maxWindowNameDensity4
worstWindowName"Harlow"
discoveredNames
Tube1
Camden1
Harlow27
Quinn1
Morris2
Eva25
Kowalski1
Rifts1
Veil1
Market1
persons
0"Camden"
1"Harlow"
2"Quinn"
3"Morris"
4"Eva"
5"Kowalski"
places(empty)
globalScore0.51
windowScore0.333
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences63
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.606
wordCount1650
matches
0"Not with the flicker of the light, but with purpose"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences127
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs63
mean26.19
std18.08
cv0.69
sampleLengths
085
146
272
356
48
538
621
721
843
946
106
1120
123
1334
1424
159
1627
1730
1840
1918
2046
2117
2271
235
2417
257
2642
2746
285
2934
309
3116
3217
334
3424
3539
3644
3717
3829
3935
4013
4113
4213
438
4451
4513
4614
4730
4812
4940
86.63% Passive voice overuse
Target: ≤2% passive sentences
passiveCount6
totalSentences113
matches
0"been dragged"
1"was frozen"
2"were curled"
3"been dragged"
4"was clenched"
5"been taken"
58.76% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount5
totalVerbs236
matches
0"was trying"
1"was going"
2"was *paying"
3"were starting"
4"was watching"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount8
semicolonCount0
flaggedSentences8
totalSentences127
ratio0.063
matches
0"The beam of her torch cut through the gloom, illuminating the peeling posters on the walls—faded advertisements for long-forgotten plays and products, their edges curled with decades of neglect."
1"Harlow’s mind raced. The station was abandoned, sure, but it wasn’t exactly a secret. Urban explorers, junkies, the occasional homeless person—plenty of people knew about it. But a supernatural black market? That was a different level of secrecy. “You think this is connected to the Market?”"
2"Harlow crouched again, this time examining the ground around the body. The dust was disturbed, but not in the way she’d expect from a struggle. The patterns were… wrong. Too smooth, too deliberate. Like something had been dragged, but not by human hands. And then there were the marks on the walls—faint, but unmistakable. Symbols, etched into the grime. She ran her fingers over them, feeling the grooves beneath the dirt."
3"Harlow pushed. Nothing. She pushed harder. Still nothing. Then, on a whim, she pressed her ear to the wall. A faint hum vibrated against her skull, like the distant thrum of machinery—or a heartbeat."
4"She turned back to the body, her sharp eyes missing nothing. The man’s pockets were empty—no wallet, no phone, no bone token. But his left hand was clenched around something. She pried his fingers open."
5"The torchlight flickered again, and for a heartbeat, the wall in front of them seemed to shimmer, like heat rising off pavement. Harlow’s grip on the bone chip tightened. She could feel it—pressure, like the air before a storm. The compass needle spun, then pointed at the chip in her hand."
6"A sound echoed through the station—a scuff of a shoe, the faintest rustle of fabric. Harlow’s hand went to her sidearm, her body coiling like a spring. “We’re not alone.”"
7"The figure tilted their head, and for the first time, Harlow saw their eyes—black, depthless, like the void between stars. Then they smiled, and the torchlight dimmed, as if the very air had grown thicker."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount617
adjectiveStacks0
stackExamples(empty)
adverbCount19
adverbRatio0.03079416531604538
lyAdverbCount5
lyAdverbRatio0.008103727714748784
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences127
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences127
mean12.99
std12.85
cv0.989
sampleLengths
024
116
229
316
416
52
625
73
823
914
105
1130
1210
1323
1413
1510
162
176
1824
1914
203
214
228
236
244
2517
266
276
282
2917
308
314
327
3326
345
358
363
373
3814
396
403
4110
4224
436
4418
452
467
4725
482
491
46.46% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats6
diversityRatio0.30708661417322836
totalSentences127
uniqueOpeners39
73.26% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences91
matches
0"Just the unnatural pallor of"
1"Maybe he stumbled onto something"
ratio0.022
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount16
totalSentences91
matches
0"She adjusted the worn leather"
1"His face was frozen in"
2"Her satchel, a worn leather"
3"She didn’t like riddles."
4"She liked facts, evidence, things"
5"She didn’t believe in the"
6"She knelt beside Eva, her"
7"She reached into her satchel"
8"It wavered, then settled on"
9"She stepped back, her pulse"
10"He was the"
11"it’s cleaner than"
12"She turned back to the"
13"He was *paying* for"
14"She met Eva’s gaze."
15"She didn’t think. She fired."
ratio0.176
31.43% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount78
totalSentences91
matches
0"The abandoned Tube station beneath"
1"Detective Harlow Quinn stepped over"
2"The beam of her torch"
3"The air was thick, stale,"
4"She adjusted the worn leather"
5"The body lay sprawled near"
6"His face was frozen in"
7"Eva Kowalski stepped into the"
8"Her satchel, a worn leather"
9"Eva crouched beside the body,"
10"Harlow’s jaw tightened."
11"She didn’t like riddles."
12"She liked facts, evidence, things"
13"Eva hesitated, then nodded."
14"Harlow exhaled sharply through her"
15"She didn’t believe in the"
16"She knelt beside Eva, her"
17"She reached into her satchel"
18"The needle didn’t point north."
19"It wavered, then settled on"
ratio0.857
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences91
matches(empty)
ratio0
93.60% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences29
technicalSentenceCount2
matches
0"The abandoned Tube station beneath Camden reeked of damp concrete and something older, something that clung to the back of the throat like rust."
1"The figure tilted their head, and for the first time, Harlow saw their eyes—black, depthless, like the void between stars. Then they smiled, and the torchlight …"
79.55% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags11
uselessAdditionCount1
matches
0"she said, her voice unsteady,"
73.08% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags7
fancyCount5
fancyTags
0"Eva murmured (murmur)"
1"she muttered (mutter)"
2"Eva whispered (whisper)"
3"Harlow’s jaw clenched. (clench)"
4"her arm didn’t (do)"
dialogueSentences65
tagDensity0.108
leniency0.215
rawRatio0.714
effectiveRatio0.154
78.1524%