Run: 2026-07-25-01KYCRG8FZVC21J3H8JAZY14X2

Run Details

Duration:
1m 12s
Cost:
$0.104425
Provider:
Amazon Bedrock

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 station had been sealed since 1949, and someone had gone to a great deal of trouble to open it. Quinn stood at the top of the dead escalator and let her eyes adjust. Below her, the shaft dropped away into a throat of cream tile gone the colour of nicotine, and at the bottom the arc lights the scene techs had rigged threw everything into a hard white glare that made the shadows look painted on. The air came up at her thick and warm, smelling of iron filings, wet chalk, and underneath that something floral and wrong — saffron, maybe, or the burnt-sugar reek of a fairground. Eighteen years on the job and she had never smelled a crime scene like it. She descended, one hand on the rubber balustrade, counting the treads out of habit. Forty-one. Her watch — worn leather strap, the buckle hole she'd used so long it had stretched oval — read 4:12 a.m. "Guv." DS Raine came out of the light with her hood pushed back and her tablet clutched to her chest like a hymnal. Twenty-nine, all forward momentum, the kind of officer who arrived at conclusions the way other people arrived at bus stops. "Male, mid-fifties, no ID. Camden Council maintenance crew found him at half one. They were doing a structural survey — asbestos, apparently — and the gate was open." "Which gate?" "The old vent access off Buck Street. Padlocked. Was padlocked. It's cut." "Show me the cut." Raine blinked. "It's — it's a bolt cutter job, guv. Clean. That's my point. Somebody let themselves in, brought him down here or he came willingly, and it went bad. There's a fair market in this, urban exploring. They stream it. He's got scuffs on the palms, he's got a head wound consistent with the fall, and if you look at the platform edge—" "I'll look at the platform edge." The platform was a hundred and thirty feet of curving tunnel, and the body lay near the middle of it, half on its side, one arm folded beneath as if it had been reaching for something in a pocket. A man in a good grey coat. Bald crown, liver spots, a signet ring on the little finger of his left hand. His mouth was open. His eyes were open too, and there was nothing in them, which was ordinary, and no petechiae, which was not, given the bruising she could see rising around the throat. Quinn crouched. Her knees complained. She ignored them. "Head wound," Raine said. "Occipital. He goes over backwards off the platform lip, cracks it, crawls, dies. It's not complicated." "He's on the platform." "He crawled back up." "With his shoes on." Raine paused. "Sorry, guv?" Quinn pointed with her pen, not touching. "Soot. Seventy years of it, an inch deep on the trackbed. Look at it. It takes a footprint like fresh snow." She swung the pen toward the four-foot drop and the rails below, silver-black, undisturbed. "Nobody's been down there since Attlee. His soles are clean. His trouser cuffs are clean. His palms have brick dust on them — platform dust, not track dust, different colour entirely, you'll see it under the lamp — and there's no soot on him anywhere. So he didn't fall off the platform, and he didn't climb back onto it. He was on it the whole time." "Then he tripped on the platform and hit his head on—" Raine turned, looking for the object. "On what? It's swept." That stopped her. Quinn watched her see it: the long clean sweep of the platform floor, the arcs where something with soft bristles had passed, back and forth, the way a shopkeeper does at closing. "Somebody tidied," Raine said slowly. "Somebody tidied," Quinn agreed, and stood, and walked the platform. Twelve paces along she stopped and turned her torch to a raking angle, low, so the beam ran flat across the floor. The dust the broom had left behind came alive with texture. Rings. Dozens of them, hundreds — small circles pressed into the film, in ranks, in pairs, four to a set, the unmistakable signature of trestle legs. She followed them with the light. Two long rows the whole length of the platform, with a gap down the centre wide enough for people to walk. Stalls. Somebody had set up eighty stalls in a sealed station and taken them all away again. "Tables," she said. "A rave," said Raine, brightening. "That's — right, that fits, that fits better. They do them in the old stations, there was that one at Aldwych, they charge two hundred a head—" "How many people?" "Hundreds, at that size." "Then where are the footprints?" Raine's mouth stayed open on the shape of her next sentence. Quinn crouched again by the nearest set of rings, and brought her torch close, and took her time. The rings were pressed a good two millimetres into the dust: heavy tables, heavily laden. Between the rows, where the feet of hundreds of people should have churned the floor into a smear, the dust lay soft and even and unmarked but for the broom's own arcs. She'd worked a warehouse fire in Deptford where twelve firefighters had left a mud map you could read like a newspaper. Here, nothing. Tables had stood. Goods had been sold — she could see a spill of something granular and violet-black glittering at the foot of the tiled wall, and a scatter of what looked like fish scales, and a coin, and she'd have all of it bagged. But no one had walked. Which meant either they had been carried, all of them, or they had arrived and departed by some route that did not involve the floor. The thought settled in her stomach with a familiar, unwelcome weight. Iron filings and burnt sugar. Three years ago, a lock-up in Silvertown, and DS Morris walking through a doorway ahead of her, and the doorway had been a doorway and then it had been — and the report had said *absconded*, and the pension board had said *insufficient evidence of death*, and the air in that lock-up had smelled exactly like this. She put it away. She was good at putting it away. "Guv?" Raine said. "His hand." Quinn moved back to the body and knelt at the folded arm. The fingers were curled, not in the loose hook of a dead hand but tight, the nails whitened where they bit the palm. He had died holding something. She eased the torch closer. Between the second and third knuckle, a glint. She took out a bag and a pair of forceps, and worked the object free, gently, with the photographer's flash going white-white-white behind her. A compass. Small, brass, no bigger than a pocket watch, the casing furred green-blue with verdigris in the seams. The glass was intact. The face wasn't a compass face at all: instead of the cardinal points, someone had cut fine, deliberate marks into the metal, spidery little figures that folded back on themselves and hurt to follow. Protective, she thought, without knowing why she thought it. The needle was not pointing north. Quinn turned slowly on her heels through a full circle, holding the thing level on her palm. The needle held its bearing like a compass should — steady, patient, absolute — except that it was aimed at the tiled wall on the eastbound side, at a blank stretch of cream and oxblood tile between two rusted advertising frames. "Batteries," said Raine, behind her. "Or it's broken. Magnetic interference, down here, all the rails—" "There's no power in this station. It's been isolated since 1949." Quinn didn't look up. "And a broken needle swings. This one doesn't." She walked to the wall. Set her hand flat on the tile and felt the cold come through her glove, and then, faintly, a thrum, like standing near a running engine three rooms away. At floor level, where the tile met the platform, the dust had been swept — but the broom's arcs stopped eight inches short of the wall, as though whoever wielded it had not wanted to get closer. "Raine. Get the sergeant to widen the cordon to the vent shaft, and photograph this wall. All of it. Every tile, overlapping frames, and I want a scale in every shot." "The wall." "The wall." Quinn glanced back once toward the escalator, where the uniforms had strung tape across the ticket hall. Beyond it, past a constable's shoulder, a small woman stood very still: curly red hair going to fire under the arc lamps, round glasses, a battered leather satchel dragging one shoulder down. Twenty-five, twenty-six. She was not looking at the body. She was looking at the compass in Quinn's hand, and when she realised she'd been seen, she tucked a curl behind her left ear and stepped back out of the light. "Also," Quinn said, "the redhead at the tape. Name and address before she walks."
created_at"2026-07-25T13:47:43.497Z" 7/25/2026, 1:47:43 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6225
moderation_latency(null)
generation_time72235
tokens_prompt896
tokens_completion2712
native_tokens_prompt1285
native_tokens_completion3920
native_tokens_completion_images(null)
native_tokens_reasoning561
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"end_turn"
service_tier"default"
usage0.104425
router(null)
provider_responses
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endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNszosig2qyuKZi4RS1A"
is_byokfalse
latency1992
model_permaslug"anthropic/claude-opus-5-20260723"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784987263-WM7x9rJJQWkJdPeZ2m3H"
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api_type"completions"
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upstream_id"msg_011CdNszosig2qyuKZi4RS1A"
total_cost0.104425
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
85.71% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags13
adverbTagCount2
adverbTags
0"Raine said slowly [slowly]"
1"Quinn moved back [back]"
dialogueSentences35
tagDensity0.371
leniency0.743
rawRatio0.154
effectiveRatio0.114
86.57% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1489
totalAiIsmAdverbs4
found
0
adverb"slowly"
count2
1
adverb"gently"
count1
2
adverb"very"
count1
highlights
0"slowly"
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)
79.85% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1489
totalAiIsms6
found
0
word"churned"
count1
1
word"stomach"
count1
2
word"familiar"
count1
3
word"weight"
count1
4
word"glint"
count1
5
word"magnetic"
count1
highlights
0"churned"
1"stomach"
2"familiar"
3"weight"
4"glint"
5"magnetic"
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
narrationSentences79
matches(empty)
70.52% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount4
hedgeCount0
narrationSentences79
filterMatches
0"look"
1"watch "
2"see"
3"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences101
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen64
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans2
markdownWords5
totalWords1504
ratio0.003
matches
0"absconded"
1"insufficient evidence of death"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions8
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions27
wordCount1129
uniqueNames7
maxNameDensity1.06
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Raine"
discoveredNames
Raine10
Twenty-nine1
Quinn12
Twelve1
Deptford1
Silvertown1
Morris1
persons
0"Raine"
1"Quinn"
2"Morris"
places
0"Deptford"
1"Silvertown"
globalScore0.969
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences50
glossingSentenceCount1
matches
0"looked like fish scales, and a coin, and"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.665
wordCount1504
matches
0"not in the loose hook of a dead hand but tight, the nails whitened"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences101
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs49
mean30.69
std33.85
cv1.103
sampleLengths
020
189
215
336
471
52
612
74
864
96
1095
118
1220
134
144
154
164
17108
1817
194
2035
215
2210
2386
2417
253
2632
273
284
295
3011
31138
3225
3373
3411
353
3655
3724
3866
396
4058
4115
4223
4371
4431
452
462
4789
4814
69.73% Passive voice overuse
Target: ≤2% passive sentences
passiveCount8
totalSentences79
matches
0"been sealed"
1"were pressed"
2"been sold "
3"been carried"
4"were curled"
5"was aimed"
6"been swept "
7"been seen"
83.72% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs172
matches
0"was not pointing"
1"was not looking"
2"was looking"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount9
semicolonCount0
flaggedSentences7
totalSentences101
ratio0.069
matches
0"The air came up at her thick and warm, smelling of iron filings, wet chalk, and underneath that something floral and wrong — saffron, maybe, or the burnt-sugar reek of a fairground."
1"Her watch — worn leather strap, the buckle hole she'd used so long it had stretched oval — read 4:12 a.m."
2"Dozens of them, hundreds — small circles pressed into the film, in ranks, in pairs, four to a set, the unmistakable signature of trestle legs."
3"Goods had been sold — she could see a spill of something granular and violet-black glittering at the foot of the tiled wall, and a scatter of what looked like fish scales, and a coin, and she'd have all of it bagged."
4"Three years ago, a lock-up in Silvertown, and DS Morris walking through a doorway ahead of her, and the doorway had been a doorway and then it had been — and the report had said *absconded*, and the pension board had said *insufficient evidence of death*, and the air in that lock-up had smelled exactly like this."
5"The needle held its bearing like a compass should — steady, patient, absolute — except that it was aimed at the tiled wall on the eastbound side, at a blank stretch of cream and oxblood tile between two rusted advertising frames."
6"At floor level, where the tile met the platform, the dust had been swept — but the broom's arcs stopped eight inches short of the wall, as though whoever wielded it had not wanted to get closer."
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1133
adjectiveStacks1
stackExamples
0"white-white-white behind her."
adverbCount32
adverbRatio0.02824360105913504
lyAdverbCount7
lyAdverbRatio0.00617828773168579
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences101
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences101
mean14.89
std13.99
cv0.939
sampleLengths
020
114
243
332
415
514
61
721
823
920
1028
112
1212
134
142
1562
166
1739
187
1915
204
2130
222
233
243
254
2616
274
284
294
302
312
327
3335
3466
3517
364
373
3832
395
4010
4122
4211
431
4425
456
4621
471
4816
493
80.53% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats7
diversityRatio0.5247524752475248
totalSentences101
uniqueOpeners53
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences66
matches(empty)
ratio0
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount17
totalSentences66
matches
0"She descended, one hand on"
1"Her watch — worn leather"
2"His mouth was open."
3"His eyes were open too,"
4"Her knees complained."
5"She ignored them."
6"She swung the pen toward"
7"She followed them with the"
8"She'd worked a warehouse fire"
9"She put it away."
10"She was good at putting"
11"He had died holding something."
12"She eased the torch closer."
13"She took out a bag"
14"She walked to the wall."
15"She was not looking at"
16"She was looking at the"
ratio0.258
96.36% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount48
totalSentences66
matches
0"The station had been sealed"
1"Quinn stood at the top"
2"The air came up at"
3"She descended, one hand on"
4"Her watch — worn leather"
5"DS Raine came out of"
6"The platform was a hundred"
7"A man in a good"
8"His mouth was open."
9"His eyes were open too,"
10"Her knees complained."
11"She ignored them."
12"Quinn pointed with her pen,"
13"She swung the pen toward"
14"Raine turned, looking for the"
15"That stopped her."
16"Quinn watched her see it:"
17"Raine said slowly"
18"Quinn agreed, and stood, and"
19"The dust the broom had"
ratio0.727
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences66
matches(empty)
ratio0
46.33% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences37
technicalSentenceCount5
matches
0"Below her, the shaft dropped away into a throat of cream tile gone the colour of nicotine, and at the bottom the arc lights the scene techs had rigged threw eve…"
1"Twenty-nine, all forward momentum, the kind of officer who arrived at conclusions the way other people arrived at bus stops."
2"The platform was a hundred and thirty feet of curving tunnel, and the body lay near the middle of it, half on its side, one arm folded beneath as if it had been…"
3"His eyes were open too, and there was nothing in them, which was ordinary, and no petechiae, which was not, given the bruising she could see rising around the t…"
4"The face wasn't a compass face at all: instead of the cardinal points, someone had cut fine, deliberate marks into the metal, spidery little figures that folded…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags13
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags8
fancyCount1
fancyTags
0"Quinn agreed (agree)"
dialogueSentences35
tagDensity0.229
leniency0.457
rawRatio0.125
effectiveRatio0.057
82.0001%