Run: 2026-09-29-01M3P2BMHX4SW7VR6DJ9T1G10N

Run Details

Duration:
42.0s
Cost:
$0.044074
Provider:
Claude Platform on AWS

Model input

System
You are an expert fiction writer. Always keep the following rules in mind: - Write in past tense and use General English spelling, grammar, and colloquialisms/slang. - Write in active voice - Always follow the "show, don't tell" principle. - Avoid adverbs and cliches and overused/commonly used phrases. Aim for fresh and original descriptions. - Convey events and story through dialogue. - Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. - Skip "he/she said said" dialogue tags and convey people's actions or face expressions through their speech - Avoid mushy dialog and descriptions, have dialogue always continue the action, never stall or add unnecessary fluff. Vary the descriptions to not repeat yourself. - Put dialogue on its own paragraph to separate scene and action. - Reduce indicators of uncertainty like "trying" or "maybe" When writing text: - NEVER conclude the scene on your own, follow the beat instructions very closely. - NEVER end with foreshadowing. - NEVER write further than what I prompt you with. - AVOID imagining possible endings, NEVER deviate from the instructions. - STOP EARLY if the continuation contains what was required in the instructions. You do not need to fill out the full amount of words possible.
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <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> Continue the story using the following instructions: <instructions> 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. </instructions>

Model response

AI
The stairwell at the old Camden Road spur smelled of wet brick and something sweeter underneath, like burnt sugar. Harlow Quinn descended with her torch pointed at her boots. A uniformed constable held the tape at the bottom, his face the colour of skimmed milk. "Ma'am. Mind the third step from the bottom. It's gone soft." "Noted." She ducked under the tape. "Who found him?" "Urban explorers, ma'am. Two lads with a camera. They're upstairs in the van, throwing up." The platform opened before her, a long tiled throat lit by the harsh white of the forensic lamps. Cream tiles, green trim, the station's name half-scoured from the wall. Detective Sergeant Callum Ashby stood at the far end with his hands in his coat pockets and a paper cup steaming in one fist. He lifted it in greeting. "Harlow. You missed the best of the smell." "I doubt that." She stopped at the edge of the plastic stepping plates. "What have we got?" "Male, fifties. Desmond Pryce, according to the wallet. Freelance something. Dealer in curios, his sister says." Ashby nodded at the body. "Single puncture under the ribs. Bled out sitting against the wall. Police surgeon puts it at two hours, maybe three. I'd say it's a robbery that soured. Pryce came down here to meet a buyer, the buyer had other ideas." Quinn crouched. Pryce sat with his legs stretched in front of him, chin on his chest, one hand open in his lap. A brass compass lay in his palm. Green crusted the casing and pooled in the seams around the glass. His fingertips had gone the same dull green. "They left him the compass," she said. "Junk. Pawn shop tat." "Then why does he hold it like a rosary?" She leaned closer without touching. The needle shivered, then swung a full quarter turn and settled. It pointed at the wall behind her left shoulder. "Is that north?" Ashby squinted. "Don't think so. Magnetised something down here. Cabling, old signal gear." "Hm." She stood and walked the length of the plates, slow, letting the torch beam drag low across the concrete. Dust lay on the platform in a pale skin. A single line of prints crossed it, a man's dress shoes, size nine or ten, starting at the stairwell mouth and ending at the wall where Pryce sat. "Only his," Ashby said. "I know what you're thinking. Killer wore covers or walked in his tracks." "Walk in someone's tracks in this dust and you smudge the edges. Look at the heel strikes." She pointed with the torch. "Crisp. Every print sharp as a stamp. Nobody followed him in." "So they came from the other end. Tunnel." "Then where are their prints?" She swept the beam across the rest of the floor. "Look at the dust, Callum. Not the middle. The edges." He came over, cup in hand, and looked. Near the walls the dust thinned and broke into long, curved sweeps, overlapping arcs the width of a broom head. Someone had worked along the platform's margins in patient strokes. Further in, the dust was thick and undisturbed. "Squatters tidying up," Ashby offered. "Drug den. They always nest in these places." "No needles. No foil. No tins, no bedding, no piss stink." Quinn moved to the nearest wall and ran the torch along the tile at knee height. "Dens leave litter. This place has been scrubbed." "It's a Tube station. It's been empty forty years." "Then explain this." She crouched again. A row of pale rectangles marked the floor near the wall, each the size of a tea chest, each with a clean outline where the dust had never settled. Beside them, a scatter of hardened wax drops, dozens, stuck to the concrete in tidy lines like the footprints of small birds. Ashby crouched beside her. His knees cracked. "Candles." "Set out in rows. And the crates were here recently, weeks at most, or the dust would have crept under their edges." She tilted her head along the platform. More rectangles, more wax, all the way to the tunnel mouth. "That's a lot of crates, Callum. That's a lot of feet, too. Dozens. Hundreds, maybe, standing where we're standing. Then somebody took the trouble to sweep every trace of them away." "Except Pryce's." "Except Pryce's." She rose. "He walked in last. After the sweeping. That's why his prints are the only ones." "Fine, so it was an event. A rave. Illegal gig." Ashby drained his cup. "Kids hire out these places all the time. Pryce turned up after, got jumped for his wallet." "His wallet was in his pocket." "Killer panicked." "Killer panicked, but not enough to lift his watch." Quinn nodded at Pryce's wrist, where a gold Omega gleamed under the lamps. "Or the ring. Or the rest of him. Your robber stabs a man once, cleanly, under the ribs, then leaves four grand of jewellery on the corpse and vanishes without a single print in a dust field." Ashby's jaw worked. "Could be professional." "A professional would not leave that." She stepped around the body and lifted the flap of Pryce's coat with the tip of her pen. A small disc of yellowed bone sat in the breast pocket. Hand-cut, the edges rubbed smooth. Someone had drilled a hole through the top and threaded it with black cord, and a symbol she did not recognise had been scratched into the face, three curved lines meeting at a point. "Is that evidence?" Ashby asked. "It's a ticket." The word came out before she had weighed it. She frowned at the disc. "Nobody carries a thing like that for decoration. He carried it to get *in* somewhere. And this place was a somewhere, until very recently." "You're reaching." "Look at his shoes." She angled the torch. "Soles." Ashby bent. "Clean." "Clean. He walked across a filthy platform and his soles carry no dust at all. Look at the prints again. They're deep at the toe and shallow at the heel." "So?" "So he was walking on tiptoe, or carried something heavy on his back. Or..." She stopped. The compass needle jittered in Pryce's palm and swung again, dragging itself toward the wall behind her, then the tunnel, then the wall. "Or he didn't walk in at all." Ashby laughed, a short dry noise. "Now you've lost me." "The blood." Quinn pointed to the wall above Pryce's head. "There's a smear on the tile, level with his shoulder. Downward drag, as he slid. But the floor under him is dry. No pool. No spatter. Two hours dead with a wound like that, Callum, and where's the rest of it?" He looked at the concrete. He looked at the tile. The colour crept out of his face by degrees. "He bled somewhere else," he said. "He bled somewhere else, and somebody carried him here, and laid him against the wall with that compass in his hand." She pulled on a fresh glove. "Someone who wanted him found. Someone who swept a hundred footprints off this platform and then made very sure we would see only one." Behind them, the brass needle stopped moving. It pointed at the blank tiled wall, and it did not waver.
created_at"2026-09-29T07:51:36.791Z" 9/29/2026, 7:51:36 AM
model"anthropic/claude-sonnet-5.5-20260928"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3608
moderation_latency(null)
generation_time41974
tokens_prompt1112
tokens_completion2317
native_tokens_prompt1597
native_tokens_completion4088
native_tokens_completion_images(null)
native_tokens_reasoning1610
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"
usage0.044074
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790668296-NZeuDPM45Dd9g4TK9Xng"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790668296-AzZqCpk2cU1SDlO0C7Ri"
upstream_id"msg_011CfXNEBuP3fJbiuRHEo47J"
provider_responses
0
endpoint_id"99aaad94-923b-4fc1-b763-271ed5486f7a"
id"msg_011CfXNEBuP3fJbiuRHEo47J"
is_byokfalse
latency682
model_permaslug"anthropic/claude-sonnet-5.5-20260928"
provider_name"Claude Platform on AWS"
status200
total_cost0.044074
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags21
adverbTagCount1
adverbTags
0"She stepped around [around]"
dialogueSentences59
tagDensity0.356
leniency0.712
rawRatio0.048
effectiveRatio0.034
91.70% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1205
totalAiIsmAdverbs2
found
0
adverb"very"
count2
highlights
0"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)
95.85% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1205
totalAiIsms1
found
0
word"pawn"
count1
highlights
0"pawn"
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
narrationSentences63
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences63
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences100
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen41
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans1
markdownWords1
totalWords1205
ratio0.001
matches
0"in"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions8
unquotedAttributions0
matches(empty)
60.42% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions27
wordCount614
uniqueNames8
maxNameDensity1.79
worstName"Ashby"
maxWindowNameDensity3
worstWindowName"Ashby"
discoveredNames
Camden1
Road1
Quinn5
Sergeant1
Callum1
Ashby11
Pryce6
Omega1
persons
0"Quinn"
1"Sergeant"
2"Ashby"
3"Pryce"
4"Omega"
places
0"Camden"
1"Road"
globalScore0.604
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences38
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1205
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences100
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs51
mean23.63
std20.04
cv0.848
sampleLengths
045
111
29
315
458
58
617
761
849
97
104
1137
1213
131
1456
1517
1633
178
1825
198
2038
2113
2235
239
243
2554
268
2771
282
2919
3031
316
322
3359
346
3524
3650
375
3841
392
409
413
4230
431
4446
4510
4651
4719
486
4951
99.69% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences63
matches
0"been scratched"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs104
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences100
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount616
adjectiveStacks0
stackExamples(empty)
adverbCount9
adverbRatio0.01461038961038961
lyAdverbCount0
lyAdverbRatio0
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences100
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences100
mean12.05
std9.52
cv0.79
sampleLengths
019
110
216
311
46
53
615
718
811
924
105
118
1213
134
1421
1540
162
1720
187
1912
208
217
224
2314
2411
259
263
272
2811
291
3019
319
3228
334
3413
3522
3611
378
3815
3910
408
4120
4210
438
445
458
4627
478
489
493
91.33% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats7
diversityRatio0.59
totalSentences100
uniqueOpeners59
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences53
matches
0"Further in, the dust was"
1"More rectangles, more wax, all"
ratio0.038
69.06% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount20
totalSentences53
matches
0"She ducked under the tape"
1"He lifted it in greeting."
2"She stopped at the edge"
3"His fingertips had gone the"
4"She leaned closer without touching"
5"It pointed at the wall"
6"She stood and walked the"
7"She pointed with the torch"
8"She swept the beam across"
9"He came over, cup in"
10"She crouched again."
11"His knees cracked."
12"She tilted her head along"
13"She stepped around the body"
14"She frowned at the disc."
15"She angled the torch"
16"He looked at the concrete."
17"He looked at the tile."
18"She pulled on a fresh"
19"It pointed at the blank"
ratio0.377
16.60% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount47
totalSentences53
matches
0"The stairwell at the old"
1"Harlow Quinn descended with her"
2"A uniformed constable held the"
3"She ducked under the tape"
4"The platform opened before her,"
5"Cream tiles, green trim, the"
6"Detective Sergeant Callum Ashby stood"
7"He lifted it in greeting."
8"She stopped at the edge"
9"Ashby nodded at the body"
10"Pryce sat with his legs"
11"A brass compass lay in"
12"His fingertips had gone the"
13"She leaned closer without touching"
14"The needle shivered, then swung"
15"It pointed at the wall"
16"She stood and walked the"
17"Dust lay on the platform"
18"A single line of prints"
19"She pointed with the torch"
ratio0.887
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences53
matches(empty)
ratio0
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences20
technicalSentenceCount0
matches(empty)
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags21
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags4
fancyCount0
fancyTags(empty)
dialogueSentences59
tagDensity0.068
leniency0.136
rawRatio0
effectiveRatio0
90.8221%