Run: 2026-09-25-01M3CKG9Y554MXSR8WDBVP1QBF

Run Details

Duration:
21.4s
Cost:
$0.019241
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 grimy platform. The beam of her torch cut through the gloom, illuminating peeling posters from decades past—faded advertisements for long-forgotten plays and tinned goods. 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. Eighteen years on the force, and she’d never seen a crime scene like this. No body. No blood. Just… traces. A scattering of bone tokens near the edge of the platform, their surfaces etched with symbols that made her eyes ache if she stared too long. And the walls—God, the walls. The graffiti here wasn’t the usual urban scrawl. These were sigils, sharp and precise, carved into the stone as if by someone who knew exactly what they were doing. “You’re late.” The voice came from the shadows near the old ticket booth. Harlow didn’t flinch. She knew that tone—dry, amused, with an edge of something darker. Eva Kowalski stepped into the light, her round glasses glinting as she pushed them up the bridge of her nose. Her curly red hair was a wild halo around her freckled face, and she had that nervous habit of hers, tucking a strand behind her left ear. She carried her worn leather satchel slung across her chest, no doubt stuffed with books. Of course Eva would be here. The British Museum’s restricted archives had a way of pulling her into the oddest places. “Traffic,” Harlow lied. She didn’t like being late. Didn’t like the way it made her jaw tighten, didn’t like the way Eva’s green eyes seemed to see right through the excuse. Eva gestured to the platform. “No body, no witnesses, and a metric ton of things that don’t make sense. Your kind of case.” Harlow exhaled through her nose. “My kind of case usually has a corpse.” “Not always.” Eva’s voice dropped, the levity fading. “You felt it, didn’t you? The moment you stepped down here.” Harlow had. A prickle at the base of her skull, like the static charge before a storm. She’d felt it three years ago, too, the night Morris had vanished. That same wrongness, that sense of the world tilting slightly off its axis. She’d spent months after that trying to rationalize it—bad intel, a setup, a trick of the light. But the truth was, she’d never found an explanation that stuck. She crouched, gloved fingers hovering over one of the bone tokens. It was cold, unnaturally so, as if it had been pulled from a freezer. The symbols etched into its surface weren’t any language she recognized, but they reminded her of the markings on Morris’s last case file—the one that had been locked away in the evidence room, the one she wasn’t supposed to have seen. “What am I looking at?” Eva knelt beside her, close enough that Harlow caught the scent of old paper and chamomile tea. “Entry tokens. For the Veil Market.” Harlow’s fingers twitched. “The what?” “Underground black market. Supernatural goods, banned alchemy, that sort of thing. It moves locations every full moon.” Eva’s voice was matter-of-fact, as if she were discussing the weather. “This station was its last stop.” Harlow stood abruptly, her sharp jaw tightening. “You’re telling me this is a crime scene involving a *magic market*?” Eva didn’t blink. “I’m telling you this is where the market *was*. It’s gone now. But something happened here before it left.” Harlow turned, sweeping her torch over the platform again. The sigils on the walls seemed to pulse faintly in the beam, like a slow, steady heartbeat. Her skin prickled. “And the tokens?” “Payment for entry. But these aren’t just lying around. They’re *scattered*. Like there was a struggle.” Eva reached into her satchel and pulled out a small brass compass. Its casing was patinated with verdigris, the face etched with protective sigils. The needle didn’t point north. It wavered, then settled on a spot near the far end of the platform, where the darkness seemed to pool thicker than elsewhere. Harlow’s breath hitched. “What the hell is that?” “Veil Compass. Points toward the nearest supernatural rift.” Eva’s fingers tightened around it. “There’s one here. Or there *was*.” Harlow stepped forward, her military precision bearing cutting through the unease. “Show me.” Eva led her to the edge of the platform, where the torchlight seemed to die before it could reach the tracks. The compass needle spun wildly, then pointed straight down. Harlow crouched again, running her fingers along the edge of the platform. The concrete was smooth here, too smooth, as if something had melted it and then let it re-form. And beneath her fingertips, a faint vibration, like the hum of a live wire. “This is where it happened,” Eva said quietly. “Whatever *it* was.” Harlow stood, her mind racing. No body. No blood. But the tokens, the sigils, the compass—it all pointed to something. And then there was the wrongness, that same wrongness from three years ago. She turned to Eva. “You said the market moves every full moon. When was the last one?” “Three nights ago.” Harlow’s stomach twisted. The night Morris had disappeared, it had been a full moon. She’d checked the lunar calendar a hundred times after, as if the answer might be hidden in the phases. “And before that?” “A month prior. Always a full moon.” Harlow’s gaze snapped back to the tokens. “So if the market was here three nights ago, and it’s gone now, then whatever happened here happened *during* the market.” Eva nodded. “Or right after.” Harlow paced the length of the platform, her boots echoing in the empty station. The beam of her torch caught on something half-hidden beneath a pile of old newspapers—a small, dark stain. She knelt, brushing the papers aside. The stain was dry, but it had the unmistakable coppery scent of blood. Old blood. But not old enough. She pulled a swab from her kit, carefully collecting a sample. “This isn’t part of your supernatural market, is it?” Eva’s face paled. “No. That’s… that’s not good.” Harlow stood, tucking the swab into an evidence bag. “You said the market sells information. What kind?” “The dangerous kind. Secrets, curses, names of things that shouldn’t be named.” Eva’s voice was tight. “And people. Sometimes it sells *people*.” Harlow’s grip tightened on the torch. “You think someone was taken?” “I think something was taken. Or something was *left behind*.” Eva’s eyes flicked to the darkness where the compass needle pointed. “That rift wasn’t just an exit. It was a door. And doors work both ways.” Harlow’s mind raced. No body. No blood. But a struggle, a rift, and a stain that didn’t belong. She thought of Morris, of the way his case file had been sealed, of the way his last words over the radio had been garbled, like something had reached through the static and *taken* them. She thought of the way the department had closed the case so quickly, as if they’d been ordered to look the other way. She turned to Eva. “You ever hear of a detective named Morris? Disappeared three years ago, full moon.” Eva’s breath caught. “Harlow…” “Answer the question.” Eva hesitated, then nodded. “There were rumors. A cop who got too close to something he shouldn’t have. They said he found a token. Just like these.” Harlow’s chest tightened. “And?” “And they said he followed it.” Eva’s voice was barely a whisper. “They said he never came back.” Harlow stared at the tokens scattered across the platform. The wrongness in the air, the sigils on the walls, the bloodstain that didn’t belong. It all fit. Too well. She pulled out her phone, scrolling through her notes until she found the lunar calendar. The next full moon was in two weeks. She looked up at Eva. “If the market moves every full moon, then it’ll be back.” Eva’s eyes widened. “You can’t be serious.” Harlow’s voice was steel. “I’m going to find out what happened here. And if Morris is still…” She trailed off, her throat tight. “If he’s still out there, I’m bringing him home.” Eva swallowed hard. “Harlow, this isn’t a case. This is a *warning*.” Harlow stepped toward the edge of the platform, toward the darkness where the compass needle pointed. The wrongness here was stronger, a physical pressure against her skin. She could almost see it—the shimmer in the air, like heat rising off pavement. A door. A way in. Or a way out. She turned back to Eva. “Get me everything you’ve got on the Veil Market. Locations, vendors, *anything*. And Eva?” “Yeah?” “Don’t tell anyone about this. Not yet.” Eva nodded, but her face was pale. “Harlow, if you’re thinking of going after the market…” “I’m thinking of finding the truth.” Harlow’s voice was quiet, but it carried the weight of a verdict. “And if that truth is hiding behind some supernatural door, then that’s where I’m going.” Eva opened her mouth to argue, but the look on Harlow’s face stopped her. The detective’s brown eyes were sharp, her bearing rigid with the kind of precision that came from years of discipline. She wasn’t asking for permission. She wasn’t even asking for help. She was stating a fact. Eva sighed, adjusting her satchel. “Fine. But if you’re going to chase this, you’re not doing it alone. I know these people. I know how they think. And I sure as hell know what they’re capable of.” Harlow almost smiled. Almost. “Wouldn’t have it any other way.” She turned back to the darkness, the torchlight wavering. Somewhere in that black, there was an answer. And if the Veil Market was the key, then she’d find it. Even if it meant stepping through a door that shouldn’t exist. Even if it meant facing the thing that had taken Morris. The compass needle trembled, then pointed straight ahead, as if beckoning her forward. Harlow took a deep breath, the weight of her watch a familiar anchor on her wrist. She stepped into the dark.
created_at"2026-09-25T15:38:51.212Z" 9/25/2026, 3:38:51 PM
model"mistralai/mistral-medium-3.5-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency467
moderation_latency(null)
generation_time21359
tokens_prompt896
tokens_completion2683
native_tokens_prompt887
native_tokens_completion2388
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"
usage0.0192405
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790350731-rE3IDxV0JJ6IM6fpWKDg"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790350731-t66n61uCOnT35wnEOKDO"
upstream_id"97b72754fede4dcdb6fc1a4c46ab9925"
provider_responses
0
endpoint_id"38ef23a9-5cb3-46fa-85ec-7aed174f04eb"
id"97b72754fede4dcdb6fc1a4c46ab9925"
is_byokfalse
latency467
model_permaslug"mistralai/mistral-medium-3.5-20260430"
provider_name"Mistral"
status200
total_cost0.0192405
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
totalTags8
adverbTagCount2
adverbTags
0"Eva’s fingers tightened around [around]"
1"Eva said quietly [quietly]"
dialogueSentences55
tagDensity0.145
leniency0.291
rawRatio0.25
effectiveRatio0.073
91.30% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1724
totalAiIsmAdverbs3
found
0
adverb"slightly"
count1
1
adverb"carefully"
count1
2
adverb"quickly"
count1
highlights
0"slightly"
1"carefully"
2"quickly"
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)
39.10% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1724
totalAiIsms21
found
0
word"gloom"
count1
1
word"familiar"
count2
2
word"weight"
count2
3
word"etched"
count3
4
word"glinting"
count1
5
word"sense of"
count1
6
word"pulse"
count1
7
word"wavered"
count1
8
word"racing"
count1
9
word"stomach"
count1
10
word"echoing"
count1
11
word"flicked"
count1
12
word"raced"
count1
13
word"whisper"
count1
14
word"carried the weight"
count1
15
word"wavering"
count1
16
word"trembled"
count1
highlights
0"gloom"
1"familiar"
2"weight"
3"etched"
4"glinting"
5"sense of"
6"pulse"
7"wavered"
8"racing"
9"stomach"
10"echoing"
11"flicked"
12"raced"
13"whisper"
14"carried the weight"
15"wavering"
16"trembled"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"eyes widened/narrowed"
count1
highlights
0"eyes widened"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences128
matches(empty)
75.89% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount4
narrationSentences128
filterMatches
0"watch"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences172
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen42
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans11
markdownWords13
totalWords1716
ratio0.008
matches
0"magic market"
1"was"
2"scattered"
3"was"
4"it"
5"during"
6"people"
7"left behind"
8"taken"
9"warning"
10"anything"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions16
unquotedAttributions0
matches(empty)
0.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions69
wordCount1249
uniqueNames12
maxNameDensity2.24
worstName"Eva"
maxWindowNameDensity5
worstWindowName"Eva"
discoveredNames
Tube1
Camden1
Harlow27
Quinn1
God1
Kowalski1
Eva28
British1
Museum1
Morris5
Veil1
Market1
persons
0"Camden"
1"Harlow"
2"Quinn"
3"Kowalski"
4"Eva"
5"Museum"
6"Morris"
places(empty)
globalScore0.379
windowScore0
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences77
glossingSentenceCount1
matches
0"as if beckoning her forward"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1716
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences172
matches
0"knew that tone"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs61
mean28.13
std24.77
cv0.881
sampleLengths
078
196
22
3108
431
523
613
719
870
971
1023
115
1234
1319
1422
1532
1668
178
1819
1913
2074
2111
2250
233
2436
257
2628
275
2857
2920
308
3117
3222
3311
3436
3576
3618
374
383
3927
404
4118
4252
4316
447
4532
4612
4746
484
4919
91.56% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences128
matches
0"been pulled"
1"been locked"
2"was patinated"
3"been sealed"
4"been garbled"
5"been ordered"
42.77% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount5
totalVerbs212
matches
0"were doing"
1"were discussing"
2"wasn’t asking"
3"wasn’t even asking"
4"was stating"
9.97% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount8
semicolonCount0
flaggedSentences8
totalSentences172
ratio0.047
matches
0"The beam of her torch cut through the gloom, illuminating peeling posters from decades past—faded advertisements for long-forgotten plays and tinned goods."
1"And the walls—God, the walls."
2"She knew that tone—dry, amused, with an edge of something darker."
3"She’d spent months after that trying to rationalize it—bad intel, a setup, a trick of the light."
4"The symbols etched into its surface weren’t any language she recognized, but they reminded her of the markings on Morris’s last case file—the one that had been locked away in the evidence room, the one she wasn’t supposed to have seen."
5"But the tokens, the sigils, the compass—it all pointed to something."
6"The beam of her torch caught on something half-hidden beneath a pile of old newspapers—a small, dark stain."
7"She could almost see it—the shimmer in the air, like heat rising off pavement."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1261
adjectiveStacks0
stackExamples(empty)
adverbCount47
adverbRatio0.03727200634417129
lyAdverbCount11
lyAdverbRatio0.008723235527359239
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences172
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences172
mean9.98
std7.46
cv0.748
sampleLengths
024
116
222
316
416
514
62
72
81
91
1026
115
128
1321
142
1511
163
1711
1820
1927
2015
216
2215
233
245
2523
265
2718
285
298
308
3111
322
3315
3412
3513
3617
3711
3811
3914
4041
415
4217
436
443
452
4628
476
487
4912
43.02% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats12
diversityRatio0.28488372093023256
totalSentences172
uniqueOpeners49
59.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences113
matches
0"Of course Eva would be"
1"Somewhere in that black, there"
ratio0.018
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount30
totalSentences113
matches
0"She adjusted the worn leather"
1"She knew that tone—dry, amused,"
2"Her curly red hair was"
3"She carried her worn leather"
4"She didn’t like being late."
5"She’d felt it three years"
6"She’d spent months after that"
7"She crouched, gloved fingers hovering"
8"It was cold, unnaturally so,"
9"Her skin prickled."
10"Its casing was patinated with"
11"It wavered, then settled on"
12"She turned to Eva."
13"She’d checked the lunar calendar"
14"She knelt, brushing the papers"
15"She pulled a swab from"
16"She thought of Morris, of"
17"She thought of the way"
18"She turned to Eva."
19"It all fit."
ratio0.265
26.37% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount98
totalSentences113
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"A scattering of bone tokens"
6"The graffiti here wasn’t the"
7"These were sigils, sharp and"
8"The voice came from the"
9"Harlow didn’t flinch."
10"She knew that tone—dry, amused,"
11"Eva Kowalski stepped into the"
12"Her curly red hair was"
13"She carried her worn leather"
14"The British Museum’s restricted archives"
15"She didn’t like being late."
16"Eva gestured to the platform."
17"Harlow exhaled through her nose."
18"Eva’s voice dropped, the levity"
19"A prickle at the base"
ratio0.867
88.50% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences113
matches
0"Even if it meant stepping"
1"Even if it meant facing"
ratio0.018
90.91% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences55
technicalSentenceCount4
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"A scattering of bone tokens near the edge of the platform, their surfaces etched with symbols that made her eyes ache if she stared too long."
2"The detective’s brown eyes were sharp, her bearing rigid with the kind of precision that came from years of discipline."
3"The compass needle trembled, then pointed straight ahead, as if beckoning her forward."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags8
uselessAdditionCount2
matches
0"Eva’s voice dropped, the levity fading"
1"She trailed, her throat tight"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount1
fancyTags
0"Harlow lied (lie)"
dialogueSentences55
tagDensity0.036
leniency0.073
rawRatio0.5
effectiveRatio0.036
78.6125%