Run: 2026-07-01-01KWEAFNTWGZVQZRK4N46DF8FP

Run Details

Duration:
33.4s
Cost:
$0.023090
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 abandoned Tube station smelled of copper and cold stone, and Detective Harlow Quinn had learned, over eighteen years, that copper meant blood and cold stone meant nothing good had ever happened there. She ducked under the sagging police tape strung across the entrance to what the old maps still called Camden Road, though no train had run beneath this particular stretch of London in decades. Her torch beam cut through the dark, catching motes of dust that hung suspended in the air like they'd forgotten how to fall. "Careful on the stairs," said DC Osei from below. "Third one's gone soft. Nearly went through it myself." Quinn descended anyway, testing each step with the toe of her boot before committing her weight. Eighteen years of decorated service had taught her that carelessness killed faster than any villain. She reached the platform level and stopped. The body lay near the old ticket barriers, arranged with a precision that made her stomach tighten before her mind had even finished cataloguing why. A man, mid-forties by the look of him, dressed in a suit too fine for a dead Tube station, his limbs positioned at angles that reminded her of a chalk outline rather than a corpse that had fallen there naturally. "Vagrant found him about four hours ago," Osei said, flipping through his notebook. "Called it in from a payphone, if you can believe there's still one working round here. No ID on the body yet. No wallet, no phone, nothing." "Cause of death?" "That's the thing." Osei crouched beside the body, careful not to touch. "No wounds. No blood. Not a mark on him that I can find, and the pathologist said the same before she left to fetch her kit. Looks like his heart just stopped." Quinn knelt, ignoring the ache that had settled into her knees these last few years, and studied the dead man's face. His eyes were open, fixed on the curved ceiling above, and his expression held not fear but something closer to wonder — the look of a man staring at a marvel rather than his own death. "Heart attack, then," Osei offered. "Bad luck to have it happen down here, but people die of natural causes in odd places all the time." "Do they." "Statistically—" "Statistically, people don't arrange their own limbs after their heart stops, Osei." She gestured at the body without touching it. "Look at his hands. Both palms up, fingers curled just so. That's not rigor. That's staging." Osei frowned and leaned closer, the light from his own torch trembling slightly as he adjusted his angle. "Could be the vagrant moved him. People panic, do strange things." "The vagrant called it in without touching a thing, according to your own notes. Scared halfway out of his wits, you said." Quinn's gaze traveled the platform, taking in details that itched at the edges of her understanding without quite resolving into sense. The dust on the ground was disturbed in a wide circle around the body, but there were no footprints in it, not even the dead man's own, as though he'd been set down from above rather than walked to his final position. "And there's no dust disturbance leading to the body. No drag marks either. He didn't walk here and he wasn't carried." "Then how—" "I don't know yet." She said it plainly, without the discomfort such an admission usually carried. Eighteen years had taught her patience with not-knowing, even as some older, colder part of her flinched from it. That part had learned its lesson three years ago, in a warehouse in Deptford, watching DS Morris disappear into something the official report called an electrical fire and she had never quite believed. She straightened and turned her torch toward the tunnel mouth beyond the platform, where the tracks vanished into a darkness that seemed to swallow the light rather than merely resist it. The air down there felt different — not colder, exactly, but thinner, as if the pressure itself had changed. "You feel that?" she asked. Osei glanced toward the tunnel, then back at her, his expression carefully neutral in the way junior officers adopted when they suspected their superior of losing the thread. "Feel what, ma'am?" "Nothing." She let it go, filing the sensation away with the dozens of others she'd collected over three years and never spoken aloud to anyone who might have her pensioned off for it. She crouched again beside the body, this time examining the fine wool of his suit, the stitching at the cuffs, the small tarnished pin on his lapel shaped like a crescent moon with a single star caught in its curve. "That's an odd bit of jewelry for a City type," Osei said, following her gaze. "It's not jewelry." Quinn had seen its like before, in a photograph Eva Kowalski had once shown her without meaning to, tucked into a folder of research materials the young woman had left open on a café table. A pin marking membership in something Eva had refused to discuss further, changing the subject with the particular brightness of someone protecting a secret. "It's a token. Or a marker." "Marker for what?" She didn't answer. Her eyes had caught on something else now — a fine line of residue on the platform's edge, near where the dust circle terminated, a faint discoloration that might have been mistaken for rust or old grime by anyone not looking for it specifically. She'd seen its like once before too, in Deptford, in the ash that had not behaved like ash, refusing to disperse even when the fans came through. "Get the pathologist back down here," Quinn said, rising. "And I want this whole station sealed. Not just taped off — sealed. No one comes down without going through me first." "Ma'am, that's going to raise questions upstairs. We don't have jurisdiction to—" "Then I'll answer the questions." She kept her voice level, though something in her chest had gone tight and cold, an old familiar dread wearing the shape of purpose. "This wasn't natural causes, Osei. Whatever killed this man wasn't anything you'd find in a coroner's manual." He studied her for a long moment, and she watched him decide, as junior officers so often did, that the safer course was silence. "I'll make the calls," he said finally, and turned toward the stairs, leaving her alone on the platform with the dead man and his open, wondering eyes, and the darkness in the tunnel that had not, she was almost certain, been merely darkness at all.
created_at"2026-07-01T07:49:49.543Z" 7/1/2026, 7:49:49 AM
model"anthropic/claude-sonnet-5-20260630"
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external_user(null)
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cancelledfalse
latency2180
moderation_latency(null)
generation_time33402
tokens_prompt923
tokens_completion1641
native_tokens_prompt1285
native_tokens_completion2052
native_tokens_completion_images(null)
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"end_turn"
service_tier"default"
usage0.02309
router(null)
provider_responses
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endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01XmkreLnc1PffA3DB5xMrnS"
is_byokfalse
latency2161
model_permaslug"anthropic/claude-sonnet-5-20260630"
provider_name"Amazon Bedrock"
status200
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request_id"req-1782892189-t09CnK9ht8MoqOpOtOx0"
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api_type"completions"
id"gen-1782892189-ecf1cRMiFZpJabwCvRq3"
upstream_id"msg_01XmkreLnc1PffA3DB5xMrnS"
total_cost0.02309
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upstream_inference_cost0
provider_name"Amazon Bedrock"
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data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags13
adverbTagCount1
adverbTags
0"he said finally [finally]"
dialogueSentences31
tagDensity0.419
leniency0.839
rawRatio0.077
effectiveRatio0.065
90.88% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1096
totalAiIsmAdverbs2
found
0
adverb"slightly"
count1
1
adverb"carefully"
count1
highlights
0"slightly"
1"carefully"
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)
77.19% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1096
totalAiIsms5
found
0
word"weight"
count1
1
word"stomach"
count1
2
word"resolving"
count1
3
word"familiar"
count1
4
word"silence"
count1
highlights
0"weight"
1"stomach"
2"resolving"
3"familiar"
4"silence"
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
narrationSentences37
matches(empty)
65.64% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences37
filterMatches
0"decide"
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences54
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
totalWords1100
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions14
unquotedAttributions0
matches(empty)
83.33% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions28
wordCount806
uniqueNames13
maxNameDensity0.87
worstName"Osei"
maxWindowNameDensity2.5
worstWindowName"Osei"
discoveredNames
Tube2
Detective1
Harlow1
Quinn6
Camden1
Road1
London1
Osei7
Eighteen2
Deptford2
Morris1
Eva2
Kowalski1
persons
0"Harlow"
1"Quinn"
2"Osei"
3"Morris"
4"Eva"
5"Kowalski"
places
0"Camden"
1"Road"
2"London"
3"Deptford"
globalScore1
windowScore0.833
69.35% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences31
glossingSentenceCount1
matches
0"darkness that seemed to swallow the light rather than merely resist it"
18.18% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.818
wordCount1100
matches
0"not fear but something closer to wonder"
1"not colder, exactly, but thinner, as if the pressure itself had changed"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences54
matches
0"did, that the"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs28
mean39.29
std28.82
cv0.734
sampleLengths
089
118
238
365
440
53
644
757
825
92
101
1136
1229
13106
142
1568
1650
175
1831
1973
2015
2168
223
2374
2431
2512
2646
2769
86.30% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences37
matches
0"was disturbed"
1"been mistaken"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs130
matches(empty)
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount0
flaggedSentences3
totalSentences54
ratio0.056
matches
0"His eyes were open, fixed on the curved ceiling above, and his expression held not fear but something closer to wonder — the look of a man staring at a marvel rather than his own death."
1"The air down there felt different — not colder, exactly, but thinner, as if the pressure itself had changed."
2"Her eyes had caught on something else now — a fine line of residue on the platform's edge, near where the dust circle terminated, a faint discoloration that might have been mistaken for rust or old grime by anyone not looking for it specifically."
95.87% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount805
adjectiveStacks0
stackExamples(empty)
adverbCount36
adverbRatio0.04472049689440994
lyAdverbCount10
lyAdverbRatio0.012422360248447204
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences54
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences54
mean20.37
std12.59
cv0.618
sampleLengths
033
133
223
39
49
516
615
77
825
940
1013
1127
123
1312
1432
1521
1636
175
1820
192
201
2120
2216
2318
2411
2543
2642
2721
282
2916
3019
3133
3231
3319
345
3528
363
3733
3840
3915
4038
4124
426
433
443
4544
4627
479
4822
4912
96.30% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats2
diversityRatio0.6111111111111112
totalSentences54
uniqueOpeners33
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences35
matches(empty)
ratio0
48.57% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount15
totalSentences35
matches
0"She ducked under the sagging"
1"Her torch beam cut through"
2"She reached the platform level"
3"His eyes were open, fixed"
4"She gestured at the body"
5"She said it plainly, without"
6"She straightened and turned her"
7"She let it go, filing"
8"She crouched again beside the"
9"She didn't answer."
10"Her eyes had caught on"
11"She'd seen its like once"
12"She kept her voice level,"
13"He studied her for a"
14"he said finally, and turned"
ratio0.429
2.86% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount32
totalSentences35
matches
0"The abandoned Tube station smelled"
1"She ducked under the sagging"
2"Her torch beam cut through"
3"Quinn descended anyway, testing each"
4"She reached the platform level"
5"The body lay near the"
6"A man, mid-forties by the"
7"Osei said, flipping through his"
8"Osei crouched beside the body,"
9"Quinn knelt, ignoring the ache"
10"His eyes were open, fixed"
11"She gestured at the body"
12"Osei frowned and leaned closer,"
13"Quinn's gaze traveled the platform,"
14"The dust on the ground"
15"She said it plainly, without"
16"That part had learned its"
17"She straightened and turned her"
18"The air down there felt"
19"Osei glanced toward the tunnel,"
ratio0.914
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences35
matches(empty)
ratio0
0.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences21
technicalSentenceCount5
matches
0"The body lay near the old ticket barriers, arranged with a precision that made her stomach tighten before her mind had even finished cataloguing why."
1"A man, mid-forties by the look of him, dressed in a suit too fine for a dead Tube station, his limbs positioned at angles that reminded her of a chalk outline r…"
2"The dust on the ground was disturbed in a wide circle around the body, but there were no footprints in it, not even the dead man's own, as though he'd been set …"
3"The air down there felt different — not colder, exactly, but thinner, as if the pressure itself had changed."
4"Her eyes had caught on something else now — a fine line of residue on the platform's edge, near where the dust circle terminated, a faint discoloration that mig…"
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
totalTags6
fancyCount0
fancyTags(empty)
dialogueSentences31
tagDensity0.194
leniency0.387
rawRatio0
effectiveRatio0
74.4821%