Run: 2026-05-20-01KS2629F9YGRXDMQB28VA8CJJ

Run Details

Duration:
12.7s
Cost:
$0.018433
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 three floors beneath the streets of Camden was thick with the scent of damp brick, ozone, and something sweeter, like rotting peaches. Detective Harlow Quinn adjusted the high-collared lapels of her coat and stepped over a rusted section of track. Under the beam of her flashlight, the abandoned Tube station showed its scars. Posters of products from the nineteen-seventies clung to the tiled walls in peeling, mold-slick ribbons. But it wasn’t past commuter traffic that had brought Harlow down here at three in the morning. A uniform constable stood guard by the shattered entrance of what must have once been a signal operator's kiosk. He looked pale, his fingers twitching near his utility belt. "Where is he?" Harlow asked, her voice clipping the damp silence. "At the end of the platform, ma'am," the constable said, gesturing toward the darkness where the tunnel narrowed. "Detective Miller’s already got the perimeter taped off. He said to tell you it’s a standard mugging gone wrong." "A standard mugging." Harlow’s left wrist twitched, and she glanced down at her worn leather watch. 03:14. She tapped the glass face. The hands were ticking, but the second hand kept hitching, freezing for a beat before leaping forward three seconds at a time. "In a station that’s been welded shut since the Blitz." She walked past him, her boot heels clicking with military precision against the concrete. She’d spent eighteen years with the Metropolitan Police, and she knew when a scene was being handled, and when it was being managed. Since Morris had died three years ago—found in an alley with his eyes turned to ash and a report that read *heart failure*—she didn’t trust the word *standard* anymore. The beam of her light caught the yellow crime scene tape, and beyond it, Detective Inspector Miller. He was a broad-shouldered man who wore his cynicism like a heavy coat. He was currently crouching over a body slumped against a pile of rotting wooden railway ties. "Ah, Quinn," Miller said, not looking up as she slid under the tape. "Glad you could make it down to the pit. I was just telling the boys from forensics we could probably wrap this up before sunrise. Simple turf dispute. Drifters, most likely. Or kids looking for a place to shoot up." Harlow stood over the victim. He was a young man, dressed in a heavy tweed coat that seemed too expensive for a drifter. He lay on his side, his hands curled like dried leaves. "Drifter?" Harlow asked, her sharp jaw tightening. "Look at the boots, Miller. Hand-stitched calfskin. And those trousers aren't off the rack. He didn’t wander down here to sleep off a bender." "Fine, so he was a tourist who took a wrong turn," Miller said, standing up and dusting his trousers. He pointed a gloved finger at the victim’s neck. "Tragedy either way. Throat’s torn open. Probably a stray pit bull or a junkie with a broken bottle. Classic robbery. His pockets are clean. Not a wallet or a phone on him." Harlow knelt beside the body. She didn't mind the damp or the smell of wet earth. She pulled a penlight from her pocket and clicked it on, angling the beam across the victim’s throat. "A dog didn't do this," she said softly. "The margins of the wound are too clean. No tearing of the surrounding skin, no claw marks on the collar. And a broken bottle leaves glass fragments or uneven lacerations. This is... cauterized." "Cauterized?" Miller let out a dry, nasal laugh. "Come on, Harlow. It’s dark, it’s damp, and you’re seeing monsters again. Just like with Morris." The mention of her late partner’s name hit her like a cold draft, but Harlow didn't flinch. She kept her eyes locked on the victim. "Look at the blood, Miller." "What about it?" "There isn't any." Miller blinked, his smugness faltering for a fraction of a second. He shone his own flashlight around the body. The concrete beneath the young man’s neck was damp with condensation, but there was no pool of dark crimson. No splatter on the railway ties. A severed carotid artery should have painted the tunnel walls. "He was killed somewhere else and dumped here," Miller muttered, though his voice lacked conviction. "No. He died right here," Harlow said. She reached out, her gloved fingers gently prying open the victim’s stiffened hand. Locked inside his fist was a tiny, smooth object. She worked it free. It was a fragment of bone, no larger than a coin, carved with a strange, jagged rune that seemed to draw the light away from her penlight. She felt a sudden, thrumming vibration in her fingertips, a cold prickle that climbed up her arm. "What’s that?" Miller asked, leaning over her shoulder. "A button?" "No," Harlow said, her mind racing. She slipped the bone token into an evidence bag before Miller could look too closely. She had seen references to things like this in the confiscated journals she kept locked in her desk at home. This was an entry requirement. A key. "It’s nothing. Copper button from his jacket." She stood up and shone her light past the body, down the dark expanse of the abandoned platform. The air was different here. Underneath the smell of decay, there was a faint, metallic tang—like brass and vinegar. "He wasn't robbed," Harlow said, her eyes scanning the debris. "He was carrying something they didn't find. Or maybe they did, and they dropped it." She took three paces away from the body, letting her instincts guide her. Her boots kicked up a cloud of grey dust. In the corner of her eye, she caught a glint of green. She knelt again, brushing aside a pile of discarded newspapers from the nineteen-thirties. Resting in the dirt was a small brass compass. She picked it up. The casing was heavy, coated in a thick, textured patina of verdigris that clung to the metal like ancient moss. On its face, instead of the standard cardinal directions, she saw complex, scrolling sigils etched into the glass and metal. They looked like protective wards she’d seen in old occult texts. The needle wasn't pointing north. Harlow turned forty-five degrees to her left. The needle spun violently, then locked onto a solid brick wall at the very back of the platform—a wall that looked distinctly newer than the Victorian brickwork around it. The needle trembled, humming with a low vibration she could feel through the brass. "Quinn, what are you doing over there?" Miller called out, his voice echoing in the hollow space. "Leave the sweep to the recovery team. We're done here." "I'm just checking the perimeter," Harlow called back. She stared at the compass in her hand. This wasn't standard. None of this was. This station wasn't empty; it was a shell hiding something else. The bone token, the missing blood, the compass pointing toward a solid wall. She remembered a name she'd pulled from a confidential informant's ledger two weeks ago, a scrap of paper detailing a shifting market that dealt in things that shouldn't exist. *The Veil Market.* An underground bazar that moved with the cycles of the moon, selling things that couldn't be bought with sterling. The victim must have been trying to get inside. Or perhaps he had just left. Harlow looked back at Miller, who was already walking toward the exit, shivering and rubbing his arms against the underground chill. He wanted this to be easy. He wanted to go home, write his report, and pretend the world was a simple, logical place where bad people did bad things for simple reasons. She couldn't afford that luxury anymore. Not since Morris. She slipped the brass compass into her inner coat pocket, feeling its heavy weight settle against her ribs. She looked at the blank brick wall one last time, noting the faint, chalky residue near the base of the portal. It was a trace of the same runes carved into the bone token. "I’m right behind you, Miller," Harlow said, her voice steady as she turned her back on the darkness. She had a name to look up. A young woman she’d been tracking through academic circles, someone who knew more about the British Museum’s restricted archives than she should. Eva Kowalski. Harlow adjusted her leather watch, her sharp eyes scanning the shadow-drenched tunnel one last time. The hunt was changing, and for the first time in three years, she finally had a compass.
created_at"2026-05-20T07:54:37.933Z" 5/20/2026, 7:54:37 AM
model"google/gemini-3.5-flash-20260519"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency763
moderation_latency(null)
generation_time12604
tokens_prompt923
tokens_completion2153
native_tokens_prompt883
native_tokens_completion1901
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"
usage0.0184335
router(null)
provider_responses
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endpoint_id"bd50061c-e1d8-469e-96b1-d322e77378f8"
id"vmgNaqnUBfzE-sAPiJLgsQk"
is_byokfalse
latency758
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-1779263677-vi1Yws7MsLowiD1TurAA"
session_id(null)
api_type"completions"
id"gen-1779263677-jBI9CBCkC6RakjAi5wrB"
upstream_id"vmgNaqnUBfzE-sAPiJLgsQk"
total_cost0.0184335
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
totalTags16
adverbTagCount1
adverbTags
0"she said softly [softly]"
dialogueSentences30
tagDensity0.533
leniency1
rawRatio0.063
effectiveRatio0.063
89.43% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1419
totalAiIsmAdverbs3
found
0
adverb"softly"
count1
1
adverb"gently"
count1
2
adverb"very"
count1
highlights
0"softly"
1"gently"
2"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)
36.58% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1419
totalAiIsms18
found
0
word"shattered"
count1
1
word"silence"
count1
2
word"standard"
count5
3
word"racing"
count1
4
word"scanning"
count2
5
word"glint"
count1
6
word"complex"
count1
7
word"etched"
count1
8
word"trembled"
count1
9
word"could feel"
count1
10
word"echoing"
count1
11
word"chill"
count1
12
word"weight"
count1
highlights
0"shattered"
1"silence"
2"standard"
3"racing"
4"scanning"
5"glint"
6"complex"
7"etched"
8"trembled"
9"could feel"
10"echoing"
11"chill"
12"weight"
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
narrationSentences93
matches(empty)
81.41% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount2
narrationSentences93
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)
analyzedSentences107
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen40
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans3
markdownWords6
totalWords1417
ratio0.004
matches
0"heart failure"
1"standard"
2"The Veil Market."
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions13
unquotedAttributions0
matches(empty)
79.14% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions41
wordCount1129
uniqueNames15
maxNameDensity1.42
worstName"Harlow"
maxWindowNameDensity2.5
worstWindowName"Harlow"
discoveredNames
Camden1
Harlow16
Quinn1
Tube1
Metropolitan1
Police1
Morris2
Detective2
Inspector1
Miller10
Victorian1
Veil1
British1
Museum1
Kowalski1
persons
0"Harlow"
1"Quinn"
2"Morris"
3"Inspector"
4"Miller"
5"Museum"
6"Kowalski"
places(empty)
globalScore0.791
windowScore0.833
83.33% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences75
glossingSentenceCount2
matches
0"rune that seemed to draw the light away from her penlight"
1"looked like protective wards she’d seen i"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1417
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences107
matches
0"afford that luxury"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs42
mean33.74
std17.56
cv0.521
sampleLengths
024
163
229
311
437
554
666
746
853
934
1031
1160
1234
1341
1424
1530
163
173
1854
1915
2029
2148
2210
2355
2437
2525
2634
2722
2855
295
3050
3127
328
3339
3451
3515
3653
379
3852
3918
4031
4132
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences93
matches
0"being handled"
31.65% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount5
totalVerbs198
matches
0"were ticking"
1"was being"
2"was currently crouching"
3"wasn't pointing"
4"was already walking"
36.05% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount4
semicolonCount1
flaggedSentences4
totalSentences107
ratio0.037
matches
0"Since Morris had died three years ago—found in an alley with his eyes turned to ash and a report that read *heart failure*—she didn’t trust the word *standard* anymore."
1"Underneath the smell of decay, there was a faint, metallic tang—like brass and vinegar."
2"The needle spun violently, then locked onto a solid brick wall at the very back of the platform—a wall that looked distinctly newer than the Victorian brickwork around it."
3"This station wasn't empty; it was a shell hiding something else."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1138
adjectiveStacks0
stackExamples(empty)
adverbCount26
adverbRatio0.022847100175746926
lyAdverbCount7
lyAdverbRatio0.006151142355008787
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences107
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences107
mean13.24
std7.67
cv0.579
sampleLengths
024
118
213
315
417
519
610
711
818
919
1016
111
125
1322
1410
1514
1623
1729
1817
1913
2016
2113
2240
235
2418
2511
267
2724
2819
299
3032
315
3211
3318
348
3533
368
3716
3817
398
405
413
423
4311
448
4519
466
4710
4815
497
53.46% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats10
diversityRatio0.37735849056603776
totalSentences106
uniqueOpeners40
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences89
matches(empty)
ratio0
62.70% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount35
totalSentences89
matches
0"He looked pale, his fingers"
1"She tapped the glass face."
2"She walked past him, her"
3"She’d spent eighteen years with"
4"He was a broad-shouldered man"
5"He was currently crouching over"
6"He was a young man,"
7"He lay on his side,"
8"He pointed a gloved finger"
9"She didn't mind the damp"
10"She pulled a penlight from"
11"she said softly"
12"She kept her eyes locked"
13"He shone his own flashlight"
14"She reached out, her gloved"
15"She worked it free."
16"It was a fragment of"
17"She felt a sudden, thrumming"
18"She slipped the bone token"
19"She had seen references to"
ratio0.393
21.80% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount78
totalSentences89
matches
0"The air three floors beneath"
1"Detective Harlow Quinn adjusted the"
2"Posters of products from the"
3"A uniform constable stood guard"
4"He looked pale, his fingers"
5"Harlow asked, her voice clipping"
6"the constable said, gesturing toward"
7"Harlow’s left wrist twitched, and"
8"She tapped the glass face."
9"The hands were ticking, but"
10"She walked past him, her"
11"She’d spent eighteen years with"
12"The beam of her light"
13"He was a broad-shouldered man"
14"He was currently crouching over"
15"Miller said, not looking up"
16"Harlow stood over the victim."
17"He was a young man,"
18"He lay on his side,"
19"Harlow asked, her sharp jaw"
ratio0.876
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences89
matches(empty)
ratio0
26.24% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences49
technicalSentenceCount8
matches
0"He was a broad-shouldered man who wore his cynicism like a heavy coat."
1"He was a young man, dressed in a heavy tweed coat that seemed too expensive for a drifter."
2"She felt a sudden, thrumming vibration in her fingertips, a cold prickle that climbed up her arm."
3"The casing was heavy, coated in a thick, textured patina of verdigris that clung to the metal like ancient moss."
4"The needle spun violently, then locked onto a solid brick wall at the very back of the platform—a wall that looked distinctly newer than the Victorian brickwork…"
5"She remembered a name she'd pulled from a confidential informant's ledger two weeks ago, a scrap of paper detailing a shifting market that dealt in things that …"
6"Harlow looked back at Miller, who was already walking toward the exit, shivering and rubbing his arms against the underground chill."
7"A young woman she’d been tracking through academic circles, someone who knew more about the British Museum’s restricted archives than she should."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags16
uselessAdditionCount7
matches
0"Harlow asked, her voice clipping the damp silence"
1"Miller said, not looking up as she slid under the tape"
2"Harlow asked, her sharp jaw tightening"
3"Miller muttered, though his voice lacked conviction"
4"Harlow said, her mind racing"
5"Harlow said, her eyes scanning the debris"
6"Miller called out, his voice echoing in the hollow space"
83.33% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags13
fancyCount2
fancyTags
0"Miller muttered (mutter)"
1"Miller called out (call out)"
dialogueSentences30
tagDensity0.433
leniency0.867
rawRatio0.154
effectiveRatio0.133
72.8372%