Run: 2026-05-20-01KS25XSKG6RFFKD1G4R42CY7F

Run Details

Duration:
10.7s
Cost:
$0.015732
Provider:
Google AI Studio

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="4417" name="Tomás Herrera" aliases="Tommy, Tomás, Herrera" pronouns="he/him" species="Human" storyRole="Support"> <eyeColor>warm brown</eyeColor> <hair>short curly dark brown</hair> <height>5'10"</height> <age>29</age> <skinTone>olive skin</skinTone> <scar>scar running along his left forearm from a knife attack</scar> <medallion>Saint Christopher medallion around his neck</medallion> <birthplace>Seville, Spain</birthplace> <description>A former paramedic who provides off-the-books medical care for the clique.</description> <backstory>Born in Seville, Spain. He moved to London to work for the NHS but lost his license after administering unauthorized treatments to supernatural patients.</backstory> </character> <location id="854" name="The Raven's Nest" aliases="the Nest, Raven, Silas' bar" realm="Earth"> <signColor>distinctive green neon sign above the entrance</signColor> <secretRoom>hidden back room accessible through a bookshelf, used for clandestine meetings</secretRoom> <description>A dimly lit bar in Soho, London. The walls are covered with old maps and black-and-white photographs.</description> </location> <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> </codex> Write a fully fleshed out scene of at least 1000 words in the thriller genre. A detective is pursuing a suspect through rain-soaked city streets at night. The chase takes them from the street level down into an underground market. The detective must decide whether to follow the suspect into unfamiliar and potentially dangerous territory. 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 rain in London did not fall so much as it drifted, a heavy, greasy mist that coated the cobblestones and blurred the neon glare of Soho into smears of pink and green. Detective Harlow Quinn adjusted the collar of her wax jacket, her gaze locked on the silhouette hundred yards ahead. It was Tomás Herrera. She knew the slouch of his shoulders, the hurried, limping gait that favored his left leg, and the dark, curly hair plastered to his forehead by the elements. A former paramedic who had vanished off the grid after a string of highly irregular incidents in the NHS emergency rooms, Herrera was a key node in a network Quinn had spent six grueling months mapping. He was the medic for a clique she suspected of orchestrating a dozen unexplained disappearances, including she feared, the cold trail of her late partner, DS Morris. Quinn checked her left wrist. The worn leather strap of her watch was damp, the hands ticking past 11:42 PM with military indifference. She had followed him from a low-rent tenement near Euston, tracking his shadow through the labyrinthine alleys, keeping just far enough back to avoid detection. Herrera veered hard to the left, slipping past the distinctive green neon sign of The Raven’s Nest. Quinn paused under the dripping awning of a shuttered tailor shop, her sharp jaw tightening. The bar was infamous, a dive where the dregs of the city’s underground congregated. She had half an expectation that he would slip inside, perhaps through the back alley where the staff threw the kegs. Instead, Herrera bypassed the entrance entirely, darting down a narrow pedestrian trench that led toward the canal and the dark boundaries of Camden beyond. She picking up her pace, her boots striking the wet pavement with quiet, practiced precision. Her five-foot-nine frame moved with a economy of motion drilled into her by years of service. Up ahead, Herrera glanced back. The pale glow of a streetlamp caught his olive skin, his eyes wide and bright with a frantic, animal energy. He saw her. He didn't run—not yet—but his pace doubled into a desperate, lurching jog. He clutched his left forearm close to his chest, his fingers digging into the fabric of his sleeve where Quinn knew a deep knife scar ran from wrist to elbow. It was a nervous tic of his, a physical anchor. "Herrera! Police!" Quinn’s voice cut through the drone of the city, sharp and commanding. "Stop right there." Herrera didn't stop. He scrambled down a flight of slick concrete stairs leading into the belly of an abandoned municipal depot near the canal interface. Quinn pursued, her hand instinctively dropping to her utility belt. She descended into the dark, the air changing instantly from the cold, petrol-washed scent of the street to something thick, stagnant, and smelling faintly of copper and ancient dust. At the bottom of the stairs, the concrete gave way to heavy Victorian brickwork. She was standing in the subterranean guts of London—specifically, the decommissioned tunnels of an old Tube station. It was pitch black save for a flickering industrial work light twenty yards ahead. She pulled her tactical torch from her belt, clicking it on. The beam sliced through the gloom, catching the brassy gleam of a medallion swinging from Herrera’s neck as he squeezed through a hole in a rusted chain-link fence. The Saint Christopher medallion caught the light like a beacon before disappearing into the black maw of an auxiliary transit tunnel. Quinn reached the chain-link barrier. Hanging from a twisted wire on the gate was a small wooden placard, hand-carved with a crude sigil that made the skin on the back of her neck prickle. It was the same symbol she had found carved into the underside of DS Morris’s desk the week he vanished. She crept through the gap in the fence, her torchlight sweeping the floor. The damp mud of the tunnel floor was churned by dozens of footprints, all heading in one direction. There was an odor here that didn't belong in a disused train line: the scent of crushed cloves, burnt fat, and wet animal fur. Thirty yards down the tunnel, the passage opened up into a massive, vaulted subterranean junction. Quinn stopped, her breath catching in her throat. She stepped behind the shadow of a decaying iron support pillar, extinguishing her torch. Ahead lay the Veil Market. She had heard whispers of it in the darkest corners of her informants' testimonies—an underground black market that drifted through the subterranean ruins of the city like a ghost ship, changing its location every full moon. Looking up through a rusted iron grate in the ceiling, she could see a sliver of the night sky, dominated by a swollen, silver lunar disc. The silence of the abandoned station was replaced by a low, vibrating hum—a chorus of hushed, urgent bartering in languages she didn't recognize. The vast railway chamber was lit by sputtering tallow candles, oil lanterns, and glowing glass jars filled with pulsing, phosphorescent liquid. Dozens of draped stalls stretched along the defunct tracks, constructed of reclaimed iron, heavy velvet drapes, and bleached timber. The patrons of the market moved like shadows. Some wore heavy wool coats and high collars to obscure their faces, while others made no effort to hide features that made Quinn’s hand tighten on her holster. She saw hands with too many knuckles trading velvet pouches; she saw bottles of thick, iridescent liquids being held up to the candlelight; she saw dried, unrecognizable specimens hanging from copper hooks like cured meats. To enter, she saw a sentinel standing at the archway—a massive figure draped in a patchwork trench coat, face obscured by a wide-brimmed felt hat. A patron ahead of her reached into their pocket, withdrawing a small, pale object: a bone token. They dropped it into the sentinel’s outstretched, gray-skinned palm. The sentinel nodded, stepping aside. Quinn’s pulse hammered in her ears. Every instinct she possessed as a decorated detective of eighteen years screamed at her to turn back, to call for backup, to file a report. But she knew what would happen. The moment she brought a tactical team down here, the market would be gone, evaporated into the brickwork, leaving nothing but damp soot and the mocking laughter of the underground. And Herrera would be gone with it, taking the truth about Morris to his grave. She scanned the crowd. Herrera was there, threading his way through the stalls toward a vendor selling desiccated roots and jars of dark, viscous ointment. He was speaking rapidly to the merchant, his hands gesturing wildly, his face pale and slick with cold sweat. He looked terrified. He was looking for a way out, or perhaps a place to hide. Quinn looked down at her own hands. No bone token. No disguise. Just her shield, her service weapon, and her determination. If she crossed that threshold, she was entering a world that defied the laws she had sworn to uphold. There would be no radio reception, no backup, and no legal jurisdiction to protect her. She was a mortal woman stepping into a den of wolves. She tightened the strap of her worn leather watch. She took a slow, deep breath, tasting the copper and clove on her tongue, and stepped out from the shadow of the iron pillar. She kept her eyes fixed on the back of Herrera's dark, curly head. With a silent prayer to whatever forces governed the dark beneath the city, Detective Harlow Quinn slipped into the crowd, moving toward the light of the market stalls, and crossed the line between the world she knew and the one she was destined to uncover.
created_at"2026-05-20T07:52:10.613Z" 5/20/2026, 7:52:10 AM
model"google/gemini-3.5-flash-20260519"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency772
moderation_latency(null)
generation_time10630
tokens_prompt914
tokens_completion1953
native_tokens_prompt852
native_tokens_completion1606
native_tokens_completion_images0
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"standard"
usage0.015732
router(null)
provider_responses
0
endpoint_id"bd50061c-e1d8-469e-96b1-d322e77378f8"
id"KmgNatmsLtin1MkP3cazyAs"
is_byokfalse
latency772
model_permaslug"google/gemini-3.5-flash-20260519"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.15.0; linux; x64))"
http_referer(null)
request_id"req-1779263530-7zFUC9IHrKQHNRwUnIwi"
session_id(null)
api_type"completions"
id"gen-1779263530-PLiPxtD3Z2rSQr7QyyKo"
upstream_id"KmgNatmsLtin1MkP3cazyAs"
total_cost0.015732
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags1
adverbTagCount0
adverbTags(empty)
dialogueSentences2
tagDensity0.5
leniency1
rawRatio0
effectiveRatio0
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1291
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
41.91% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1291
totalAiIsms15
found
0
word"lurching"
count1
1
word"gloom"
count1
2
word"beacon"
count1
3
word"maw"
count1
4
word"churned"
count1
5
word"silence"
count1
6
word"constructed"
count1
7
word"velvet"
count2
8
word"sentinel"
count3
9
word"pulse"
count1
10
word"grave"
count1
11
word"scanned"
count1
highlights
0"lurching"
1"gloom"
2"beacon"
3"maw"
4"churned"
5"silence"
6"constructed"
7"velvet"
8"sentinel"
9"pulse"
10"grave"
11"scanned"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells1
narrationSentences76
matches
0"looked terrified"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount0
narrationSentences76
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences77
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen45
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1285
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions0
unquotedAttributions0
matches(empty)
98.25% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions45
wordCount1256
uniqueNames19
maxNameDensity1.04
worstName"Quinn"
maxWindowNameDensity2
worstWindowName"Quinn"
discoveredNames
London2
Soho1
Harlow2
Quinn13
Tomás1
Herrera10
Morris3
Euston1
Raven1
Nest1
Camden1
Victorian1
Tube1
Saint1
Christopher1
Veil1
Market1
Looking1
Detective2
persons
0"Harlow"
1"Quinn"
2"Tomás"
3"Herrera"
4"Morris"
5"Raven"
6"Saint"
7"Christopher"
8"Market"
9"Looking"
places
0"London"
1"Soho"
2"Euston"
globalScore0.982
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences64
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1285
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences77
matches
0"crossed that threshold"
84.64% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs26
mean49.42
std22.05
cv0.446
sampleLengths
052
195
248
391
459
552
617
725
839
945
1060
1154
1255
1315
1422
155
1662
1763
1871
1956
2082
2160
2221
2345
2446
2545
82.18% Passive voice overuse
Target: ≤2% passive sentences
passiveCount5
totalSentences76
matches
0"was churned"
1"was replaced"
2"was lit"
3"being held"
4"was destined"
63.95% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs196
matches
0"was standing"
1"was speaking"
2"was looking"
3"was entering"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount5
semicolonCount2
flaggedSentences5
totalSentences77
ratio0.065
matches
0"He didn't run—not yet—but his pace doubled into a desperate, lurching jog."
1"She was standing in the subterranean guts of London—specifically, the decommissioned tunnels of an old Tube station."
2"The silence of the abandoned station was replaced by a low, vibrating hum—a chorus of hushed, urgent bartering in languages she didn't recognize."
3"She saw hands with too many knuckles trading velvet pouches; she saw bottles of thick, iridescent liquids being held up to the candlelight; she saw dried, unrecognizable specimens hanging from copper hooks like cured meats."
4"To enter, she saw a sentinel standing at the archway—a massive figure draped in a patchwork trench coat, face obscured by a wide-brimmed felt hat."
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount751
adjectiveStacks1
stackExamples
0"cold, petrol-washed scent"
adverbCount15
adverbRatio0.019973368841544607
lyAdverbCount8
lyAdverbRatio0.010652463382157125
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences77
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences77
mean16.69
std9.55
cv0.572
sampleLengths
033
119
24
328
436
527
65
718
825
917
1015
1114
1221
1324
1415
1516
165
1720
183
1912
2030
2110
2214
233
243
2522
2610
2729
2814
2917
3014
3111
3228
3321
345
3529
3620
3713
3818
3924
4015
418
4214
435
4436
4526
4623
4721
4819
498
49.78% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats10
diversityRatio0.37662337662337664
totalSentences77
uniqueOpeners29
88.89% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences75
matches
0"Instead, Herrera bypassed the entrance"
1"Just her shield, her service"
ratio0.027
60.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount30
totalSentences75
matches
0"It was Tomás Herrera."
1"She knew the slouch of"
2"He was the medic for"
3"She had followed him from"
4"She had half an expectation"
5"She picking up her pace,"
6"Her five-foot-nine frame moved with"
7"He saw her."
8"He didn't run—not yet—but his"
9"He clutched his left forearm"
10"It was a nervous tic"
11"He scrambled down a flight"
12"She descended into the dark,"
13"She was standing in the"
14"It was pitch black save"
15"She pulled her tactical torch"
16"It was the same symbol"
17"She crept through the gap"
18"She stepped behind the shadow"
19"She had heard whispers of"
ratio0.4
60.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount60
totalSentences75
matches
0"The rain in London did"
1"Detective Harlow Quinn adjusted the"
2"It was Tomás Herrera."
3"She knew the slouch of"
4"A former paramedic who had"
5"He was the medic for"
6"Quinn checked her left wrist."
7"The worn leather strap of"
8"She had followed him from"
9"Herrera veered hard to the"
10"Quinn paused under the dripping"
11"The bar was infamous, a"
12"She had half an expectation"
13"She picking up her pace,"
14"Her five-foot-nine frame moved with"
15"The pale glow of a"
16"He saw her."
17"He didn't run—not yet—but his"
18"He clutched his left forearm"
19"It was a nervous tic"
ratio0.8
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences75
matches
0"To enter, she saw a"
1"If she crossed that threshold,"
ratio0.027
51.95% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences55
technicalSentenceCount7
matches
0"The rain in London did not fall so much as it drifted, a heavy, greasy mist that coated the cobblestones and blurred the neon glare of Soho into smears of pink …"
1"She knew the slouch of his shoulders, the hurried, limping gait that favored his left leg, and the dark, curly hair plastered to his forehead by the elements."
2"Instead, Herrera bypassed the entrance entirely, darting down a narrow pedestrian trench that led toward the canal and the dark boundaries of Camden beyond."
3"She picking up her pace, her boots striking the wet pavement with quiet, practiced precision."
4"Hanging from a twisted wire on the gate was a small wooden placard, hand-carved with a crude sigil that made the skin on the back of her neck prickle."
5"There was an odor here that didn't belong in a disused train line: the scent of crushed cloves, burnt fat, and wet animal fur."
6"He was speaking rapidly to the merchant, his hands gesturing wildly, his face pale and slick with cold sweat."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags1
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags0
85.8513%