Run: 2026-03-18-01KM07TC7W8RDMYGJMR7C55TZX

Run Details

Duration:
14.8s
Cost:
$0.001048
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 Tube tunnels beneath Camden were never meant to be seen. Not like this—stitched with veins of flickering electric light, the walls glossy with condensation and something darker. Detective Harlow Quinn adjusted the strap of her bag, her leather watch brushing her wrist, as she stepped past the yellow-and-black tape. A uniformed constable nodded her way, though the man’s face was all wrong—too smooth, like a mannequin with eyes that didn’t blink quite right. Behind her, the station’s service door groaned shut with a finality that echoed. She exhaled, the damp air catching in her throat. Another death. Another aboveground trail gone cold, another body dumped into the earth like garbage. If this was the work of the clique, they were getting sloppy—or bolder. A voice cut through the mechanical hum of the station’s failing ventilation. "Harlow. Over here." She turned. Eva Kowalski stood beneath a rust-streaked emergency exit sign, her red curls caught in a messy bun, round glasses perched on her nose despite the dim light. A satchel bulged at her side, stuffed with books and papers, and she was already tucking her hair behind her left ear, a nervous gesture Quinn knew too well. "I didn’t expect you to be here," Quinn said, her voice clipped. Eva adjusted her glasses, sliding a hand into her pocket. "I got a call. Strange stuff in the restricted archives at the museum—rumors about a body found in an abandoned Tube station. Then I heard you were heading this one down. Figured you might need a second set of eyes." Quinn arched one brow. Eva had never once offered to accompany her on a case. Not even when Morris was alive. Something was off. The body lay beneath flickering strip lighting, stretched out on the cold platform like a discarded mannequin. His skin was gray, veined with black lines that pulsed faintly, like ink moving under a thin layer of ice. Quinn crouched beside him, keeping a careful distance. The victim wore a black hoodie, spray-painted with silver sigils along the arms. His fingers were curled inward, nails blackened as if burned from the inside. No wallet. No phone. But at his throat, barely clutched in stiffened fingers, was a bone token. Eva knelt beside her, careful not to touch anything. "Seen these before, have you?" Quinn didn’t answer. Instead, she reached into her jacket and pulled out a pair of latex gloves, slipping them on with practiced precision. Then she carefully pried the token from the corpse’s grip. It was cold to the touch, heavy. When she turned it over, the surface was etched with ancient angular script—venae mortis, the language of death. "Not just anyone’s entry pass," Eva murmured. "Only sold at the Veil Market." Quinn pocketed the token. "So this isn’t just a murder. It’s a message." Eva exhaled sharply. "Or a calling card. They want you to know where it came from." Quinn studied the body again. The black veins didn’t look like bruising. They looked *organic*—like they’d grown. She reached for her phone, ready to call the coroner’s office, when Eva grabbed her wrist. "Don’t," Eva said, voice dropping. "Not yet." Quinn froze. Eva’s fingers were cold. Too cold. Eva’s eyes flicked to the victim’s chest. Between the spray-painted sigils, the black lines converged at a single point—right over the heart. And beneath the fabric, something was *moving*. Quinn’s pulse tightened. "What the hell?" Eva exhaled slowly. "They haven’t finished with him." Before Quinn could react, the corpse’s back arched violently. A wet, tearing sound split the air. Black tendrils erupted from his ribcage—not from the lungs, but from beneath them. Not blood. Something thicker. Glossy. Icky. Eva recoiled, falling back onto her hands. "Oh God. It’s a conduit." The tendrils writhed, thickening into corded limbs that unraveled from the corpse’s torso like roots from soil. They lashed against the platform, tendrils splitting at the ends into smaller strands, searching, testing the air. Quinn didn’t hesitate. She lunged forward, grabbed Eva’s arm, and hauled her to her feet. "We need to move. *Now.*" Eva scrambled with her, face pale. "Where the hell do we go? We’re in a dead-end station." "Not dead-end." Quinn’s mind raced. Memory surfaced—maps, black-market whispers, rumors from informants. "There’s a shunt tunnel behind the old signal box. Leads to a maintenance ladder. Up into the sewer." Eva’s breath hitched. "You know this place?" Quinn didn’t answer. She was already dragging Eva toward a corroded maintenance hatch, her boots slapping against wet tile. Behind them, the tendrils snaked closer, clicking against metal like insects. "Harlow—" Eva gasped, glancing back. "Don't look. Don't stop." The hatch gave with a rusted shriek. Quinn shoved Eva through first, then followed, the door slamming shut behind her with a final *clang*. The tunnel was narrow, slick with sewage mist. The stench hit like a punch—rotten eggs and decay. Eva coughed, covering her mouth with her sleeve. Quinn pulled out the brass compass from her pocket. The Veil Compass. The one she’d bought at the Market six months ago—not for direction, but for *detection*. Its needle spun wildly, then stabilized, pointing into the darkness ahead. She tightened her grip. "This way." Eva clutched her satchel tight. "You knew this was here? You *planned* for this?" Quinn didn’t look back. "I suspected. Ever since Morris went under. His body was found in an abandoned station too. With a bone token." Eva stumbled. "You never told me that." "It wasn’t in the report." The tendrils screamed against the far side of the hatch. A wet, tearing groan filled the tunnel. Then silence. Quinn exhaled. Her watch read 3:47 AM. The Veil Market wasn’t open at night. But the Market wasn’t a building. It didn’t have hours. Eva exhaled sharply. "Harlow. The compass. It’s pointing *back*." Quinn turned. The needle didn’t waver. It steadied, pointing toward the tunnel behind them. Toward the hatch. Eva’s breath turned shallow. "It’s not leading us away. It’s leading *them* to us." Quinn’s jaw clenched. Of course. The compass wasn’t a compass. It was a lure. A trap. She pulled out her revolver. "Stay behind me." A sound echoed down the tunnel. Not from the hatch. From *above.* A thud. Another. Like something heavy—*alive*—dropping into the shaft. Quinn raised the gun. And in the dim emergency light filtering from the station above, she saw them—pale, elongated shapes, too many limbs, too many eyes. Four. Six. They flowed down the ladder like shadows made flesh, their movements too smooth, too *wrong.* The Veil Market had just come to Camden Station. And it had brought the hunt with it.
created_at"2026-03-18T10:28:17.802Z" 3/18/2026, 10:28:17 AM
model"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency418
moderation_latency(null)
generation_time14688
tokens_prompt923
tokens_completion1793
native_tokens_prompt887
native_tokens_completion1597
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached320
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.00104805
router(null)
provider_responses
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endpoint_id"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id"f6cb5682d007437b80dc692be9a62b49"
is_byokfalse
latency418
model_permaslug"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
provider_name"Mistral"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773829697-qnrVKd3nKpwP5JomfrFu"
upstream_id"f6cb5682d007437b80dc692be9a62b49"
total_cost0.00104805
cache_discount0.0000432
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags5
adverbTagCount0
adverbTags(empty)
dialogueSentences28
tagDensity0.179
leniency0.357
rawRatio0
effectiveRatio0
82.01% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1112
totalAiIsmAdverbs4
found
0
adverb"carefully"
count1
1
adverb"sharply"
count2
2
adverb"slowly"
count1
highlights
0"carefully"
1"sharply"
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)
50.54% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1112
totalAiIsms11
found
0
word"electric"
count1
1
word"echoed"
count2
2
word"mechanical"
count1
3
word"pulsed"
count1
4
word"etched"
count1
5
word"flicked"
count1
6
word"pulse"
count1
7
word"raced"
count1
8
word"silence"
count1
9
word"jaw clenched"
count1
highlights
0"electric"
1"echoed"
2"mechanical"
3"pulsed"
4"etched"
5"flicked"
6"pulse"
7"raced"
8"silence"
9"jaw clenched"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"jaw/fists clenched"
count1
highlights
0"jaw clenched"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences115
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount0
narrationSentences115
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences138
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen41
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans11
markdownWords11
totalWords1101
ratio0.01
matches
0"organic"
1"moving"
2"Now."
3"clang"
4"detection"
5"planned"
6"back"
7"them"
8"above."
9"alive"
10"wrong."
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions9
unquotedAttributions0
matches(empty)
0.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions60
wordCount892
uniqueNames12
maxNameDensity2.58
worstName"Eva"
maxWindowNameDensity5.5
worstWindowName"Eva"
discoveredNames
Tube1
Camden2
Harlow1
Quinn21
Kowalski1
Eva23
Morris1
Memory1
Veil3
Compass1
Market4
Station1
persons
0"Tube"
1"Harlow"
2"Quinn"
3"Kowalski"
4"Eva"
5"Morris"
6"Memory"
places
0"Camden"
1"Station"
globalScore0.211
windowScore0
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences60
glossingSentenceCount0
matches(empty)
18.35% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.817
wordCount1101
matches
0"not from the lungs, but from beneath them"
1"not for direction, but for *detection*"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences138
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs51
mean21.59
std17.78
cv0.824
sampleLengths
074
150
215
358
412
550
624
771
817
914
1058
1113
1213
1316
1433
157
168
1729
186
198
2035
2112
2234
2320
2417
2530
267
2730
285
294
3049
3138
326
3314
3424
357
365
3719
3824
399
4014
413
4214
4316
448
4512
469
474
4839
499
99.16% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences115
matches
0"were curled"
1"was etched"
78.79% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs165
matches
0"were getting"
1"was already tucking"
2"was already dragging"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount13
semicolonCount0
flaggedSentences12
totalSentences138
ratio0.087
matches
0"Not like this—stitched with veins of flickering electric light, the walls glossy with condensation and something darker."
1"A uniformed constable nodded her way, though the man’s face was all wrong—too smooth, like a mannequin with eyes that didn’t blink quite right."
2"If this was the work of the clique, they were getting sloppy—or bolder."
3"When she turned it over, the surface was etched with ancient angular script—venae mortis, the language of death."
4"They looked *organic*—like they’d grown."
5"Between the spray-painted sigils, the black lines converged at a single point—right over the heart."
6"Black tendrils erupted from his ribcage—not from the lungs, but from beneath them."
7"Memory surfaced—maps, black-market whispers, rumors from informants."
8"The stench hit like a punch—rotten eggs and decay."
9"The one she’d bought at the Market six months ago—not for direction, but for *detection*."
10"Like something heavy—*alive*—dropping into the shaft."
11"And in the dim emergency light filtering from the station above, she saw them—pale, elongated shapes, too many limbs, too many eyes."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount908
adjectiveStacks0
stackExamples(empty)
adverbCount31
adverbRatio0.034140969162995596
lyAdverbCount8
lyAdverbRatio0.00881057268722467
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences138
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences138
mean7.98
std6.46
cv0.809
sampleLengths
011
117
222
324
413
59
62
713
813
912
103
112
1227
1329
1412
1510
1640
174
1811
196
203
2117
2220
238
2413
2513
262
272
2813
299
305
313
3220
3310
347
3518
367
376
384
399
403
4113
425
437
445
4516
465
472
482
494
57.49% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.36231884057971014
totalSentences138
uniqueOpeners50
71.68% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences93
matches
0"Instead, she reached into her"
1"Then she carefully pried the"
ratio0.022
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount17
totalSentences93
matches
0"She exhaled, the damp air"
1"His skin was gray, veined"
2"His fingers were curled inward,"
3"It was cold to the"
4"They looked *organic*—like they’d grown."
5"She reached for her phone,"
6"They lashed against the platform,"
7"She lunged forward, grabbed Eva’s"
8"She was already dragging Eva"
9"Its needle spun wildly, then"
10"She tightened her grip."
11"Her watch read 3:47 AM."
12"It didn’t have hours."
13"It steadied, pointing toward the"
14"It was a lure."
15"She pulled out her revolver."
16"They flowed down the ladder"
ratio0.183
62.15% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount74
totalSentences93
matches
0"The Tube tunnels beneath Camden"
1"Detective Harlow Quinn adjusted the"
2"A uniformed constable nodded her"
3"She exhaled, the damp air"
4"Another aboveground trail gone cold,"
5"A voice cut through the"
6"Eva Kowalski stood beneath a"
7"A satchel bulged at her"
8"Quinn said, her voice clipped"
9"Eva adjusted her glasses, sliding"
10"Quinn arched one brow."
11"Eva had never once offered"
12"Something was off."
13"The body lay beneath flickering"
14"His skin was gray, veined"
15"Quinn crouched beside him, keeping"
16"The victim wore a black"
17"His fingers were curled inward,"
18"Eva knelt beside her, careful"
19"Quinn didn’t answer."
ratio0.796
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences93
matches
0"If this was the work"
1"Before Quinn could react, the"
ratio0.022
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences35
technicalSentenceCount2
matches
0"A uniformed constable nodded her way, though the man’s face was all wrong—too smooth, like a mannequin with eyes that didn’t blink quite right."
1"She was already dragging Eva toward a corroded maintenance hatch, her boots slapping against wet tile."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags5
uselessAdditionCount2
matches
0"Quinn said, her voice clipped"
1"Eva said, voice dropping"
78.57% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags4
fancyCount2
fancyTags
0"Eva murmured (murmur)"
1"Eva gasped (gasp)"
dialogueSentences28
tagDensity0.143
leniency0.286
rawRatio0.5
effectiveRatio0.143
79.9581%