Run: 2026-10-07-01M4ATVXQ4JRJ2XHACKWPSG3PQ

Run Details

Duration:
2m 19s
Cost:
$0.010845
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 stairwell beneath Camden swallowed the sound of the city. Detective Harlow Quinn descended thirty-seven steps, counting them with the automatic precision of eighteen years in the Metropolitan Police, her hand resting on the service weapon at her hip. The air grew thick, damp, tasting of rust and stagnant water. She checked the leather watch on her left wrist—02:47. Three years ago, to the minute, she had been standing in a different dark place, waiting for a partner who never came back. At the bottom, the abandoned Tube platform stretched into darkness, a cathedral of cracked tiles and rusted rails. The Veil Market had vacated these tunnels at dawn, as it did every full moon, but the residue of its presence lingered—the scent of ozone and myrrh, the faint vibration of displaced ley lines still settling back into the stone. Quinn’s boots crunched on broken glass and the detritus of a hundred illicit transactions. She found Eva Kowalski crouched beside the body. The researcher looked up, her round glasses catching the beam of Quinn’s flashlight. Her curly red hair was plastered to her freckled forehead with sweat, and she tucked a strand behind her left ear—a nervous habit Quinn had observed a thousand times in their friendship. Eva’s worn leather satchel, stuffed with books, sat open on the platform, its contents spilling out like the guts of some bibliographic beast: dog-eared tomes on Sumerian blood rituals, a laminated map of Camden’s ley lines, a vial of something that glinted purple in the dark. “Harlow,” Eva said, her voice tight. “Thank God. I was researching the market’s relocation patterns when I found him. It’s… it’s not right.” Quinn didn’t answer. She moved with military precision, circling the body without touching anything. The deceased was a man, perhaps forty, dressed in a vendor’s canvas apron over a wool coat. He lay on his back in the center of the platform, arms spread, palms up—a crucifixion pose that had nothing to do with Christianity and everything to do with theater. Around him, someone had drawn a circle in what looked like salt, though in this light, Quinn couldn’t be certain. It crunched under her boots. “Ritual killing,” Eva said, adjusting her glasses with a trembling hand. “The positioning, the circle, the fact that the Veil Compass is in his hand—” She gestured to the object gleaming in the dead man’s rigid fingers. “It’s a sacrifice. Someone opened a rift, or tried to. The market moves on the full moon, which is three days from now. They needed a anchor.” Quinn knelt. Her salt-and-pepper hair, closely cropped, caught the overhead work light. Her brown eyes narrowed. The man’s throat had been cut, a precise horizontal incision that had severed the carotid but left the spine intact—surgical, almost. Blood pooled beneath his head, dark and viscous, but the quantity was wrong. For a wound that size, for a body that had clearly bled out, the pool was too small, too contained. As if he’d been killed elsewhere and dumped here. She reached for the Veil Compass. The moment her fingers brushed the brass casing, she felt it—or rather, felt the absence of what should have been there. The compass was small, no larger than her palm, its surface etched with protective sigils and covered in a patina of verdigris that spoke of decades of handling. According to the occult community, the needle should point toward the nearest supernatural rift or portal. It was crafted by a Shade artisan, attuned to energies that human eyes couldn’t see. But the needle was motionless. Stuck. Pointing straight up, toward the cracked ceiling of the station. “That’s impossible,” Eva breathed. She was tucking her hair behind her ear again, faster now, a whirring motion of panic. “If there’s residual thaumaturgical energy—and there should be, given the circle—it should be spinning. It should be screaming.” Quinn turned the compass over. The verdigris was thick, authentic, but along the rim, the sigils had been scraped. Fresh scratches, silver-bright against the green oxidation. Someone had tried to open it. Or close it. Or stop it from working. “He wasn’t killed here,” Quinn said. Her voice was low, certain. She stood, her sharp jaw set, her height of five-foot-nine casting a long shadow across the platform. “Look at his shoes.” Eva looked. The man’s boots were pristine. No mud from the streets above, no dust from the station floor, no scuff marks from walking. They were clean, polished. A corpse that clean didn’t walk into an abandoned Tube station and die. It was carried. “And the blood,” Quinn continued, moving to the body’s right side. She crouched again, examining the pool. “It’s too neat. Too centered. If he’d bled out on this concrete, it would have seeped into the cracks, followed the grout lines. This is staged. A tableau.” Eva’s green eyes widened behind her glasses. “You think someone… moved him? Staged it to look like—” “I think someone murdered him somewhere else, dragged him down here, posed him, and placed that compass in his hand to make it look like an occult sacrifice.” Quinn straightened, checking her watch again. 02:52. “The compass is broken. The needle doesn’t point to a rift because there is no rift here. Someone snapped it. Or jammed it. To make us think this was supernatural, when it’s just… murder. Very human, very messy murder disguised as mysticism.” Eva stood, her satchel slung over her shoulder. She looked at the body, then at Quinn, her expression shifting from fear to something else—recognition. “Morris,” she said quietly. Quinn felt the name hit her like a physical blow. DS Morris. Three years ago. The case that had been ruled a supernatural anomaly, a death by misadventure in an occult ritual gone wrong. The case that had driven a wedge between Quinn and the department, that had left her doubting her own perceptions, that had started her obsession with the Veil Market in the first place. “The same MO,” Quinn said. She was looking at the compass now, really looking. The scratches on the sigils weren’t random. They formed a pattern. A spiral. The same spiral she’d found carved into the wall behind Morris’s body in that warehouse in Croydon. The same spiral that had been dismissed as “ritual marking” by the pathologist, by her superiors, by everyone except Quinn. “Whoever killed Morris,” Quinn said, her voice dropping to a whisper, “is killing again. And they’re using the market as cover. Using the fear of the supernatural to hide a human killer.” Eva stepped closer, close enough that Quinn could smell the scent of old paper and lavender that clung to her friend’s clothes. “Then the compass… if it’s not pointing to a rift, what is it doing?” Quinn picked up the compass again. She turned it slowly, watching the dead needle. Then she looked at the body’s left hand, the one not clutching the compass. The fingers were curled, grasping at something invisible. Quinn pried them open with a pen from her pocket. A bone token lay in the dead man’s palm. Small, carved from ivory or bone, etched with the sigil of the Veil Market. But Quinn knew tokens. She’d seen them, held them, studied them during her investigation into the black market. Real tokens were worn. Smooth from handling. Aged by the oils of a thousand hands, darkened by years of passage through the threshold. This token was pristine. Freshly carved. The edges were sharp, unsoftened by use. “He didn’t have the token to get in,” Quinn said, holding it up. The work light caught the bone, making it glow like a small, dead moon. “Someone gave it to him. After he was dead. Or… they killed him outside, took his token, used it to enter, and planted this one to make sure we’d find him. To make sure we’d think he was a vendor, a participant, not a victim.” Eva was breathing hard now, her hand at her throat. “The market moves on the full moon. In three days. If the killer is using the relocation to hide—” “To hide the body,” Quinn finished. “Or to escape. They’ll vanish when the market shifts locations.” Quinn looked up, her eyes scanning the darkness beyond the platform, the tunnel mouths that yawned like empty eye sockets. “But they left evidence. They always do.” She stood, brushing dust from her knees with sharp, economical movements. The compass felt heavy in her hand, the broken needle a accusation. She thought of Morris, of the warehouse, of the way his body had been arranged with the same theatrical precision, the same attempt to disguise homicide as the occult. “Eva,” Quinn said, turning to her friend. “Call it in. Tell them it’s a homicide, not a ritual. And tell them…” She paused, listening. The silence of the station was absolute, but Quinn heard it—a sound, faint, from the tunnel to the east. A scuff of boot on concrete. Fresh. Recent. “Tell them the killer might still be down here,” Quinn said. “And that I intend to find out why they think the dark can hide what they’ve done.” She started walking toward the sound, her boots striking the platform with military precision, the leather watch ticking on her wrist, the broken compass clutched tight in her fist. Behind her, Eva scrambled to gather her books, her red hair tumbling over her shoulders, her green eyes wide with the terrible understanding that the monster Quinn had hunted for three years had never been supernatural at all. It had simply been patient. And now, it was hungry again.
created_at"2026-10-07T09:24:44.907Z" 10/7/2026, 9:24:44 AM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency636
moderation_latency(null)
generation_time139324
tokens_prompt896
tokens_completion5431
native_tokens_prompt858
native_tokens_completion4910
native_tokens_completion_images(null)
native_tokens_reasoning2968
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"
usage0.01084534
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
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request_id"req-1791365084-gAU4cdY1lzXKtfi06qYY"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791365084-8htDPH7VZJriWg4E6Q6D"
upstream_id"5cf2b320f2bf404887e067d0d42e18b3"
provider_responses
0
endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id"5cf2b320f2bf404887e067d0d42e18b3"
is_byokfalse
latency621
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.01084534
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
totalTags16
adverbTagCount1
adverbTags
0"she said quietly [quietly]"
dialogueSentences29
tagDensity0.552
leniency1
rawRatio0.063
effectiveRatio0.063
87.60% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1613
totalAiIsmAdverbs4
found
0
adverb"very"
count2
1
adverb"really"
count1
2
adverb"slowly"
count1
highlights
0"very"
1"really"
2"slowly"
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)
72.10% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1613
totalAiIsms9
found
0
word"gleaming"
count1
1
word"etched"
count2
2
word"long shadow"
count1
3
word"pristine"
count2
4
word"whisper"
count1
5
word"scanning"
count1
6
word"silence"
count1
highlights
0"gleaming"
1"etched"
2"long shadow"
3"pristine"
4"whisper"
5"scanning"
6"silence"
66.67% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches2
maxInWindow2
found
0
label"eyes widened/narrowed"
count2
highlights
0"eyes narrowed"
1"eyes widened"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences109
matches(empty)
90.43% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount3
hedgeCount1
narrationSentences109
filterMatches
0"watch"
hedgeMatches
0"tried to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences121
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen47
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1603
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions16
unquotedAttributions0
matches(empty)
16.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions62
wordCount1225
uniqueNames16
maxNameDensity2.29
worstName"Quinn"
maxWindowNameDensity4.5
worstWindowName"Quinn"
discoveredNames
Camden2
Harlow1
Quinn28
Metropolitan1
Police1
Tube2
Veil4
Market3
Eva11
Kowalski1
Sumerian1
Christianity1
Compass1
Shade1
Morris3
Croydon1
persons
0"Camden"
1"Harlow"
2"Quinn"
3"Market"
4"Eva"
5"Kowalski"
6"Compass"
7"Morris"
places
0"Metropolitan"
1"Croydon"
globalScore0.357
windowScore0.167
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences73
glossingSentenceCount1
matches
0"looked like salt, though in this light, Q"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1603
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences121
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs34
mean47.15
std24.57
cv0.521
sampleLengths
082
172
28
391
423
586
664
779
86
980
1016
1138
1240
1332
1444
1545
1617
1777
1828
1967
2064
2132
2236
2346
2464
2513
2672
2729
2843
2952
3051
3128
3267
3311
76.29% Passive voice overuse
Target: ≤2% passive sentences
passiveCount9
totalSentences109
matches
0"was plastered"
1"been killed"
2"was crafted"
3"been scraped"
4"was carried"
5"been ruled"
6"been dismissed"
7"were curled"
8"been arranged"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs200
matches
0"was tucking"
1"was looking"
2"was breathing"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount8
semicolonCount0
flaggedSentences8
totalSentences121
ratio0.066
matches
0"She checked the leather watch on her left wrist—02:47."
1"The Veil Market had vacated these tunnels at dawn, as it did every full moon, but the residue of its presence lingered—the scent of ozone and myrrh, the faint vibration of displaced ley lines still settling back into the stone."
2"Her curly red hair was plastered to her freckled forehead with sweat, and she tucked a strand behind her left ear—a nervous habit Quinn had observed a thousand times in their friendship."
3"He lay on his back in the center of the platform, arms spread, palms up—a crucifixion pose that had nothing to do with Christianity and everything to do with theater."
4"The man’s throat had been cut, a precise horizontal incision that had severed the carotid but left the spine intact—surgical, almost."
5"The moment her fingers brushed the brass casing, she felt it—or rather, felt the absence of what should have been there."
6"She looked at the body, then at Quinn, her expression shifting from fear to something else—recognition."
7"The silence of the station was absolute, but Quinn heard it—a sound, faint, from the tunnel to the east."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1240
adjectiveStacks0
stackExamples(empty)
adverbCount29
adverbRatio0.02338709677419355
lyAdverbCount9
lyAdverbRatio0.007258064516129033
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences121
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences121
mean13.25
std10.22
cv0.771
sampleLengths
010
129
211
39
423
518
640
714
88
913
1032
1146
126
1317
143
1511
1617
1730
1820
195
2011
2126
2227
232
2410
254
2621
2713
2820
299
306
3121
3228
3316
3415
355
361
3710
384
3916
4018
415
4214
437
446
453
465
476
485
4917
61.67% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats6
diversityRatio0.4
totalSentences120
uniqueOpeners48
35.09% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences95
matches
0"Then she looked at the"
ratio0.011
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount28
totalSentences95
matches
0"She checked the leather watch"
1"She found Eva Kowalski crouched"
2"Her curly red hair was"
3"She moved with military precision,"
4"He lay on his back"
5"It crunched under her boots."
6"She gestured to the object"
7"Her salt-and-pepper hair, closely cropped,"
8"Her brown eyes narrowed."
9"She reached for the Veil"
10"It was crafted by a"
11"She was tucking her hair"
12"Her voice was low, certain."
13"She stood, her sharp jaw"
14"They were clean, polished."
15"It was carried."
16"She crouched again, examining the"
17"She looked at the body,"
18"she said quietly"
19"She was looking at the"
ratio0.295
70.53% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount74
totalSentences95
matches
0"The stairwell beneath Camden swallowed"
1"Detective Harlow Quinn descended thirty-seven"
2"The air grew thick, damp,"
3"She checked the leather watch"
4"The Veil Market had vacated"
5"Quinn’s boots crunched on broken"
6"She found Eva Kowalski crouched"
7"The researcher looked up, her"
8"Her curly red hair was"
9"Eva’s worn leather satchel, stuffed"
10"Eva said, her voice tight"
11"Quinn didn’t answer."
12"She moved with military precision,"
13"The deceased was a man,"
14"He lay on his back"
15"It crunched under her boots."
16"Eva said, adjusting her glasses"
17"She gestured to the object"
18"Her salt-and-pepper hair, closely cropped,"
19"Her brown eyes narrowed."
ratio0.779
52.63% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences95
matches
0"As if he’d been killed"
ratio0.011
23.81% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences48
technicalSentenceCount8
matches
0"Detective Harlow Quinn descended thirty-seven steps, counting them with the automatic precision of eighteen years in the Metropolitan Police, her hand resting o…"
1"Eva’s worn leather satchel, stuffed with books, sat open on the platform, its contents spilling out like the guts of some bibliographic beast: dog-eared tomes o…"
2"He lay on his back in the center of the platform, arms spread, palms up—a crucifixion pose that had nothing to do with Christianity and everything to do with th…"
3"The man’s throat had been cut, a precise horizontal incision that had severed the carotid but left the spine intact—surgical, almost."
4"The compass was small, no larger than her palm, its surface etched with protective sigils and covered in a patina of verdigris that spoke of decades of handling…"
5"The case that had been ruled a supernatural anomaly, a death by misadventure in an occult ritual gone wrong."
6"The case that had driven a wedge between Quinn and the department, that had left her doubting her own perceptions, that had started her obsession with the Veil …"
7"She started walking toward the sound, her boots striking the platform with military precision, the leather watch ticking on her wrist, the broken compass clutch…"
62.50% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags16
uselessAdditionCount2
matches
0"Eva said, her voice tight"
1"Quinn said, her voice dropping to a whisper,"
81.03% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags11
fancyCount2
fancyTags
0"Eva breathed (breathe)"
1"Quinn continued (continue)"
dialogueSentences29
tagDensity0.379
leniency0.759
rawRatio0.182
effectiveRatio0.138
79.9005%