Run: 2026-02-19-01KHVPNTSJJJDEBSJBFHAHW98Y

Run Details

Duration:
2m 13s
Cost:
$0.107414
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="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 air in the abandoned Tube station beneath Camden tasted of copper, damp earth, and ozone. Detective Harlow Quinn stood at the edge of the police tape, letting her brown eyes adjust to the harsh glare of the portable halogen work lights the forensics team had set up along the platform. This was the Veil Market. Officially, the Metropolitan Police did not acknowledge the existence of a hidden supernatural black market. Unofficially, Harlow had spent the last three years learning its contours, tracking the flow of enchanted goods and banned alchemical substances through the subterranean veins of London. Harlow adjusted the worn leather watch on her left wrist. The hands read three in the morning. The market moved locations every full moon, and the lunar peak had passed just hours ago. The vast underground cavern should have been empty by now, its merchants scattered to a new temporary sanctuary. Instead, the echoing tunnels were bathed in the cold, clinical lights of a murder investigation. At forty-one, with eighteen years of decorated service, Harlow carried herself with military precision. She stepped under the yellow tape, her five-foot-nine frame moving with deliberate, measured grace to avoid the scattered detritus of the crime scene. A collapsed merchant stall dominated the center of the platform. Splintered wooden crates spilled glowing, viscous liquids that hissed violently as they ate into the century-old subway tiles. In the center of the wreckage lay the victim. He was a Shade artisan, his skin carrying a translucent, violet hue that marked his supernatural lineage. He had been gutted. Harlow stood over the body, her sharp jaw set in a rigid line as she cataloged the blood spatter arcing across the peeling vintage advertisements on the curved walls. The evidence painted a chaotic picture, but beneath the chaos, something fundamentally did not add up. A throat cleared behind her. Harlow turned, her closely cropped salt-and-pepper hair catching the harsh work light. Eva Kowalski stood just inside the perimeter of the lighting rig. At twenty-six, Eva looked entirely out of place among the hardened uniforms of the Met. She was small, only five-foot-four, and clutched a worn leather satchel full of books tightly to her chest. Her green eyes were wide, magnified slightly by the heavy round glasses perched on the bridge of her nose. The harsh lighting washed out her freckled complexion, making her look pale and shaken. Harlow watched closely as Eva reached up, nervously tucking a lock of curly red hair behind her left ear. It was a tell Harlow had noticed the first time they met. Eva was Aurora's childhood friend, an occult researcher who had moved to London two years before Aurora arrived. She held a master degree in Ancient History from Oxford and currently worked as a research assistant at the British Museum restricted archives. That was the official reason Harlow had called her down to the tunnels tonight to act as a consultant on the bizarre artifacts. The unofficial reason was strategy. Harlow firmly suspected Eva, Aurora, and their clique were involved in illegal magical activities. Bringing Eva to a fresh crime scene was a calculated attempt to rattle her, to see if the young woman would slip and reveal what she really knew. Eva stepped carefully around a puddle of spilled potion, her eyes entirely focused on a small object resting near the victim's outstretched hand. I know what this is, Eva said, her voice trembling slightly in the cavernous acoustic space. She pointed toward the floor. Look at the compass, Detective. Harlow followed her gaze. Resting on the cracked subway tiles was a small brass compass. The casing had a heavy patina of verdigris, giving it the look of a drowning victim salvaged from the Thames. Its face was etched with intricate protective sigils that seemed to catch and refract the halogen light. Inside the glass housing, the needle was locked in place, pointing rigidly toward a solid brick support pillar twenty feet away. It is a Veil Compass, Eva explained, shifting the heavy strap of her satchel. The victim must have crafted it. Shade artisans are the only ones who can temper the brass to hold that specific frequency of magic. The needle points toward the nearest supernatural rift or portal. Harlow crossed her arms. And what exactly does that mean for my crime scene, Miss Kowalski? Eva tucked her hair behind her left ear again. It means the killer was not human, Detective Quinn. Or at least, they did not escape by human means. The compass is pointing at solid brick. There is no door there. The killer tore open a temporary portal in the veil, dragged whatever they were looking for through it, and vanished. A creature from the other side could have done this. Eva paused, her green eyes finding Harlow's face. Like the unexplained circumstances surrounding DS Morris. Whatever took your partner three years ago from that warehouse... it could have been the same kind of tear in reality. Harlow felt a cold spike of adrenaline hit her chest at the mention of her late partner. Morris had died screaming while the shadows on the wall stretched themselves into impossible, jagged shapes. Harlow knew supernatural origins were to blame for his death, a truth she still barely understood and fiercely resented. But she refused to surrender her logic to the terrifying unknown. She would not let ghost stories blind her to human malice. If a monster came through a magical rift and tore him apart, Harlow countered, her voice dropping into an icy, authoritative register, then our monster is a creature of incredibly disciplined habit. Eva blinked, pushing her round glasses up her nose. What do you mean? Harlow crouched next to the body. Her military precision took over as she pointed out the physical evidence spread across the tiles. Look at the blood spatter on the wall behind the victim. The cast-off pattern is linear. It indicates a weapon swung with an upward, diagonal trajectory. The angle requires an assailant who is around five feet ten inches tall, striking with their left hand. Claws do not produce a single, clean incision that strikes exactly between the second and third ribs to sever the ascending aorta. A combat knife does. But the compass, Eva insisted, stepping closer. The magic is undeniable. A portal was opened right there. The needle never lies. Harlow stood up and approached the small brass object. She did not touch it, but leaned over it, analyzing its position. The casing has a patina of verdigris, she murmured. Notice the underside, Eva. The oxidation is scraped clean on a sharp diagonal. Eva frowned, leaning over as well. It scratched against the tiles. Exactly, Harlow said. It fell from a height. But look at the dust patterns around it. If it was dropped during the initial struggle, the combatants footprints would have disturbed the dust nearby. They did not. The glass vials from the smashed apothecary stall are undisturbed in a three-foot radius around the compass. The compass was placed or tossed there after the violent struggle had concluded. Harlow turned her back on the compass and calculated the line of sight derived from the locked needle. She slowly walked the twenty feet toward the solid brick pillar. The air grew colder here. She shone her pocket flashlight against the masonry, inspecting the gritty mortar. Tell me about the entry requirement for the Veil Market, Eva, Harlow commanded, not looking back. Eva adjusted her heavy leather bag. It is strictly controlled. The market is warded by ancient spatial bindings. You cannot walk down into this abandoned Tube station without carrying a bone token. If you do not have one, the staircase loops endlessly back to the surface. It is a foolproof security measure. So the killer had to possess a bone token to enter, Harlow reasoned. And to leave. Yes, Eva agreed hesitantly. Which is why a rift makes more sense. If they opened a portal, they could bypass the ward entirely. Harlow reached the base of the brick pillar. The needle of the Veil Compass was pointing exactly here. There was no door, no magical tear in reality. But down near the floorboards, where the subway tiles met the crumbling concrete foundation, was an old, rusted iron ventilation grate. It belonged to the original 1907 architecture of the Camden station, leading out into the unmapped maintenance shafts of the deep-level Tube network. Do the bone tokens emit a magical signature? Harlow asked quietly. Eva nodded, though Harlow could only hear the rustle of her clothing. Yes. They are carved from creatures that dwell exclusively in the shadow realms. They radiate highly concentrated necrotic energy. Enough to make a supernatural compass point toward it? I suppose, Eva said, her voice pitching up in realization. If the energy was dense enough. Harlow knelt by the iron grate. She aimed her flashlight through the rusted crosshatches. The narrow, dark ductwork extended backward into absolute pitch blackness. But just inside the vent, snagged on a jagged piece of rusted metal, was a fresh piece of torn dark fabric. Sticking to the metal directly above it was a distinct, smeared red thumbprint. And resting in the thick dust just three inches past the grate was a small, intricately carved piece of yellowed ivory. Harlow stood up and turned to face Eva. The younger woman looked stricken, her hands motionless by her sides. The facade of the terrifying, untraceable monster had evaporated. The needle never lies, Harlow said, her voice ringing out clearly over the hum of the portable halogen lights. Our killer did not vanish through a mystical portal. They were human. They were left-handed. They bled. And in their panic to escape after murdering the artisan, they squeezed into the mundane maintenance ducts to bypass the wards, dropping their bone token in the dark. Harlow narrowed her brown eyes, studying every micro-expression on Eva Kowalski's face. The researcher looked completely overwhelmed by the revelation, the confidence of her historical knowledge shattered by raw forensic reality. You and I are going to have a very long conversation about who is running these tokens in the clique, Harlow continued, stepping away from the wall. We are going to find a human being tonight. Because there are no monsters hiding in that wall. Just a desperate thief crawling on their hands and knees.
created_at"2026-02-19T19:40:21.521Z" 2/19/2026, 7:40:21 PM
model"google/gemini-3.1-pro-preview-20260219"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3458
moderation_latency(null)
generation_time132918
tokens_prompt923
tokens_completion5972
native_tokens_prompt883
native_tokens_completion8804
native_tokens_completion_images0
native_tokens_reasoning6666
native_tokens_cached0
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"
usage0.107414
router(null)
provider_responses
0
endpoint_id"2abf5677-0826-45d9-8470-3d62c31d54a1"
is_byokfalse
latency3458
model_permaslug"google/gemini-3.1-pro-preview-20260219"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771530021-b7ii0OjgP0mVYhailzfa"
upstream_id(null)
total_cost0.107414
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags0
71.35% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1745
totalAiIsmAdverbs10
found
0
adverb"tightly"
count1
1
adverb"slightly"
count2
2
adverb"nervously"
count1
3
adverb"really"
count1
4
adverb"carefully"
count1
5
adverb"slowly"
count1
6
adverb"hesitantly"
count1
7
adverb"completely"
count1
8
adverb"very"
count1
highlights
0"tightly"
1"slightly"
2"nervously"
3"really"
4"carefully"
5"slowly"
6"hesitantly"
7"completely"
8"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)
65.62% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1745
totalAiIsms12
found
0
word"sanctuary"
count1
1
word"echoing"
count1
2
word"measured"
count1
3
word"cataloged"
count1
4
word"chaotic"
count1
5
word"firmly"
count1
6
word"calculated"
count2
7
word"etched"
count1
8
word"intricate"
count1
9
word"facade"
count1
10
word"shattered"
count1
highlights
0"sanctuary"
1"echoing"
2"measured"
3"cataloged"
4"chaotic"
5"firmly"
6"calculated"
7"etched"
8"intricate"
9"facade"
10"shattered"
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
emotionTells0
narrationSentences145
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount3
hedgeCount1
narrationSentences145
filterMatches
0"watch"
1"look"
2"know"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences145
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen35
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1732
ratio0
matches(empty)
0.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions9
unquotedAttributions9
matches
0"I know what this is, Eva said, her voice trembling slightly in the cavernous acoustic space."
1"It is a Veil Compass, Eva explained, shifting the heavy strap of her satchel."
2"But the compass, Eva insisted, stepping closer."
3"The casing has a patina of verdigris, she murmured."
4"Exactly, Harlow said."
5"Yes, Eva agreed hesitantly."
6"I suppose, Eva said, her voice pitching up in realization."
7"The needle never lies, Harlow said, her voice ringing out clearly over the hum of the portable halogen lights."
8"You and I are going to have a very long conversation about who is running these tokens in the clique, Harlow continued, …"
63.39% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions92
wordCount1732
uniqueNames24
maxNameDensity1.73
worstName"Harlow"
maxWindowNameDensity3
worstWindowName"Eva"
discoveredNames
Tube3
Camden2
Harlow30
Quinn2
Veil4
Market2
Metropolitan1
Police1
London2
Shade2
Kowalski3
Eva22
Met1
Aurora3
Ancient1
History1
Oxford1
British1
Museum1
Detective3
Thames1
Compass2
Miss1
Morris2
persons
0"Camden"
1"Harlow"
2"Quinn"
3"Market"
4"Police"
5"Kowalski"
6"Eva"
7"Aurora"
8"Museum"
9"Detective"
10"Miss"
11"Morris"
places
0"London"
1"Ancient"
2"Oxford"
3"British"
4"Thames"
5"Compass"
globalScore0.634
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences117
glossingSentenceCount1
matches
0"sigils that seemed to catch and refract the halogen light"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1732
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences145
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs39
mean44.41
std28.98
cv0.653
sampleLengths
098
166
265
330
445
517
677
7142
823
926
1073
1148
1216
1370
1436
1574
1632
1713
1892
1921
2043
2111
2266
2346
2416
2552
2616
2723
2871
2911
3031
319
3216
3358
3421
3528
3664
3731
3855
76.23% Passive voice overuse
Target: ≤2% passive sentences
passiveCount12
totalSentences145
matches
0"were bathed"
1"been gutted"
2"were involved"
3"was etched"
4"was locked"
5"was opened"
6"is scraped"
7"was dropped"
8"are undisturbed"
9"was placed"
10"is warded"
11"are carved"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs295
matches
0"were looking"
1"was pointing"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences145
ratio0
matches(empty)
97.56% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1745
adjectiveStacks0
stackExamples(empty)
adverbCount61
adverbRatio0.03495702005730659
lyAdverbCount40
lyAdverbRatio0.022922636103151862
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences145
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences145
mean11.94
std6.79
cv0.568
sampleLengths
016
135
25
315
427
510
67
716
818
915
1014
1123
1210
1318
149
1517
164
1729
1816
195
2012
2111
2215
2318
2419
2514
2619
2712
2818
2923
3023
315
3214
3328
3423
3516
365
375
384
3911
4020
4117
4221
4314
446
4518
4610
474
4812
499
50.11% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats9
diversityRatio0.33793103448275863
totalSentences145
uniqueOpeners49
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount5
totalSentences143
matches
0"Officially, the Metropolitan Police did"
1"Unofficially, Harlow had spent the"
2"Instead, the echoing tunnels were"
3"Exactly, Harlow said."
4"Just a desperate thief crawling"
ratio0.035
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount35
totalSentences143
matches
0"She stepped under the yellow"
1"He was a Shade artisan,"
2"He had been gutted."
3"She was small, only five-foot-four,"
4"Her green eyes were wide,"
5"It was a tell Harlow"
6"She held a master degree"
7"I know what this is,"
8"She pointed toward the floor."
9"Its face was etched with"
10"It is a Veil Compass,"
11"It means the killer was"
12"it could have been the"
13"She would not let ghost"
14"Her military precision took over"
15"It indicates a weapon swung"
16"She did not touch it,"
17"It scratched against the tiles."
18"It fell from a height."
19"They did not."
ratio0.245
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount101
totalSentences143
matches
0"The air in the abandoned"
1"Detective Harlow Quinn stood at"
2"This was the Veil Market."
3"Harlow adjusted the worn leather"
4"The hands read three in"
5"The market moved locations every"
6"The vast underground cavern should"
7"She stepped under the yellow"
8"A collapsed merchant stall dominated"
9"He was a Shade artisan,"
10"He had been gutted."
11"Harlow stood over the body,"
12"The evidence painted a chaotic"
13"A throat cleared behind her."
14"Harlow turned, her closely cropped"
15"Eva Kowalski stood just inside"
16"She was small, only five-foot-four,"
17"Her green eyes were wide,"
18"The harsh lighting washed out"
19"Harlow watched closely as Eva"
ratio0.706
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount6
totalSentences143
matches
0"If a monster came through"
1"If it was dropped during"
2"If you do not have"
3"If they opened a portal,"
4"If the energy was dense"
5"Because there are no monsters"
ratio0.042
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences83
technicalSentenceCount3
matches
0"Splintered wooden crates spilled glowing, viscous liquids that hissed violently as they ate into the century-old subway tiles."
1"He was a Shade artisan, his skin carrying a translucent, violet hue that marked his supernatural lineage."
2"Eva was Aurora's childhood friend, an occult researcher who had moved to London two years before Aurora arrived."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags0
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags0
90.8087%