Run: 2026-10-08-01M4DA7SMQ3CW0CW17WNT807PZ

Run Details

Duration:
25.6s
Cost:
$0.002304
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 Northern Line platform at Camden had been dead for decades, but someone had bothered to light it tonight. Lamps on tripods threw yellow circles across tiles the colour of weak tea, and the air smelled of wet brick with something sweeter underneath, like lilies left too long in a vase. Quinn ducked under the blue tape at the top of the escalator. The worn leather of her watch was cold against her wrist. Twenty to three on a Tuesday morning, and the dispatcher had used the word "unusual," which in eighteen years had meant a lost shoe, a stolen car, or a man who believed the Tube was haunted by his late mother. DS Gareth Pryce waited at the bottom, rocking on his heels with his hands jammed in his coat pockets. He was thirty-two and eager, with a face that still believed the job would make sense if you worked hard enough. "Ma'am. Thought you'd want to see it before the photographers finish." "Give me the bones before I see anything." "Victim's a man, mid-forties. Lionel Ashby. Works for a property firm in Holborn. Security guard found him at half one when he came down to check for squatters. Rope burns on the wrists. No stab wounds." "Cause?" "Looks like he fell." Pryce pointed to the drop onto the tracks. "Cracked his skull on the rail. Probably pissed after a night out. These places catch people every year." Quinn walked to the edge. The body lay on the track bed, one arm flung up against the lip of the platform as though it had been reaching for a way out. Ashby's suit was immaculate. No grit on the cuffs, no damp at the knees. His shoes shone. "He fell down there," she said, "and kept his shoes clean." "Tunnel's dry on that side." "Is it?" She crouched at the platform edge. "Then explain the water line. Everything on this floor is slick, but the tiles at the bottom of the escalator are bone dry. Look." She tapped the torch beam across the grey tile. Footprints came from the far tunnel mouth, beaded with damp, marching toward the stairs. Then they stopped dead on the dry patch, as if whoever made them had stepped from one world into another. "Somebody walked him in and didn't drag a single shoe through the puddle." "Could be the guard's prints." "The guard came down the stairs. Those heels point toward the track." She stood, knees cracking. "Where is he?" "Upstairs, giving a statement. He's sick as a dog." "Keep him up there until I say otherwise." She turned slowly, letting the lamplight find the details. Candle stubs lay scattered across the platform, their wax pooled into the grooves between tiles in a neat, deliberate ring. Quinn counted seven. Someone had chalked a circle around them, then swept most of the chalk away with a hand or a broom, leaving grey smears that only showed when the light hit at an angle. Half-buried in the wax, a small brass object lay on its side. No bigger than a pocket watch, its face had gone green with verdigris, and etched lines ran across the metal in a pattern she did not recognise. Pryce crouched beside her. "Is that a compass?" "Something like one." She didn't touch it. The needle inside had swung round to point at the wall beside the far tunnel mouth, trembling as if it had caught a scent. "Somebody wanted it left behind." "Ma'am, with respect, a compass in a candle ring doesn't make this a ritual. Kids play at this stuff all the time. Tarot, Ouija boards, séances in flats in Kentish Town. Ashby probably had a few drinks, fancied himself a medium, and went arse over tit." "Look at his left hand." Pryce leaned in. Ashby's fingers were curled into his palm, the knuckles white with pressure. "Lucky charm, probably." "Probably." Quinn kept her voice flat. "Or he was clutching whatever he came down here to collect, and somebody made sure he never let go of it." She knelt beside the body and peeled back the stiff fingers, one at a time. Inside lay a small pale disc, smooth and yellowed, carved along the rim with a spiral that ran tighter toward the centre. It was not plastic, and it was not ivory she recognised from any museum case. It had the faint, ridged grain of bone. "Ma'am, that's—" "Evidence. Bag it, and log where it was sitting." Pryce did not move. He was looking at the watch on Ashby's wrist, a gold Omega with a spider-web crack across the glass. Quinn tilted her head to read the hands. They sat at eleven fourteen. "Security guard said he saw Ashby go down the stairs just before midnight," Pryce said slowly. "So he was alive for a while down here." "Or the watch stopped when something else did." Quinn stood, brushing wax from her trousers. For a moment the smell of lilies filled her head, and she was back in a basement three years ago, kneeling beside DS Morris while white wax dripped from a ring of candles that nobody could explain. She pushed the memory down hard and stepped toward the tunnel mouth where the compass needle pointed. "You're reading a drunk who fell. I'm reading a man who was brought down here, put inside a circle, and left for the first person who thought to look."
created_at"2026-10-08T08:31:51.454Z" 10/8/2026, 8:31:51 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency25550
moderation_latency(null)
generation_time25550
tokens_prompt1112
tokens_completion1279
native_tokens_prompt1597
native_tokens_completion4288
native_tokens_completion_images(null)
native_tokens_reasoning2509
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"
usage0.0023037
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791448311-wR0qWqxGZ43g0ssPKPuC"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791448311-wnMQ9FLPkaP4GNEaVVKB"
upstream_id"msg_011CfpTaRh3wx4wRZ89cGyo4"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfpTaRh3wx4wRZ89cGyo4"
is_byokfalse
latency793
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0023037
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
totalTags10
adverbTagCount1
adverbTags
0"Pryce said slowly [slowly]"
dialogueSentences31
tagDensity0.323
leniency0.645
rawRatio0.1
effectiveRatio0.065
88.99% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount908
totalAiIsmAdverbs2
found
0
adverb"slowly"
count2
highlights
0"slowly"
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)
88.99% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount908
totalAiIsms2
found
0
word"etched"
count1
1
word"charm"
count1
highlights
0"etched"
1"charm"
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
narrationSentences43
matches(empty)
76.41% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount0
narrationSentences43
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences64
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen46
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords908
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions4
unquotedAttributions0
matches(empty)
98.36% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions24
wordCount581
uniqueNames12
maxNameDensity1.03
worstName"Pryce"
maxWindowNameDensity2
worstWindowName"Pryce"
discoveredNames
Northern1
Line1
Camden1
Tuesday1
Tube1
Gareth1
Pryce6
Quinn6
Footprints1
Ashby3
Omega1
Morris1
persons
0"Gareth"
1"Pryce"
2"Quinn"
3"Footprints"
4"Ashby"
5"Morris"
places(empty)
globalScore0.984
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences30
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount908
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences64
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs30
mean30.27
std25.43
cv0.84
sampleLengths
051
163
240
311
48
536
61
730
849
911
105
1188
125
1319
149
158
1665
1739
188
1936
2046
215
2218
2327
2460
252
269
2736
2825
2998
88.94% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences43
matches
0"was haunted"
1"were curled"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs87
matches
0"was looking"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences64
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount584
adjectiveStacks0
stackExamples(empty)
adverbCount11
adverbRatio0.018835616438356163
lyAdverbCount3
lyAdverbRatio0.005136986301369863
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences64
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences64
mean14.19
std10.47
cv0.738
sampleLengths
019
132
212
311
440
519
621
711
88
936
101
1112
1218
135
1427
154
1610
173
1811
195
208
2133
2214
2320
2413
255
2616
273
289
298
309
3120
323
3333
3412
3527
364
374
387
3924
405
4146
425
433
4412
453
466
4721
4815
4922
98.44% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats1
diversityRatio0.65625
totalSentences64
uniqueOpeners42
79.37% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences42
matches
0"Then they stopped dead on"
ratio0.024
96.19% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount13
totalSentences42
matches
0"He was thirty-two and eager,"
1"His shoes shone."
2"She crouched at the platform"
3"She tapped the torch beam"
4"She stood, knees cracking"
5"She turned slowly, letting the"
6"She didn't touch it"
7"She knelt beside the body"
8"It was not plastic, and"
9"It had the faint, ridged"
10"He was looking at the"
11"They sat at eleven fourteen."
12"She pushed the memory down"
ratio0.31
31.43% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount36
totalSentences42
matches
0"The Northern Line platform at"
1"Lamps on tripods threw yellow"
2"Quinn ducked under the blue"
3"The worn leather of her"
4"DS Gareth Pryce waited at"
5"He was thirty-two and eager,"
6"Pryce pointed to the drop"
7"Quinn walked to the edge."
8"The body lay on the"
9"Ashby's suit was immaculate."
10"His shoes shone."
11"She crouched at the platform"
12"She tapped the torch beam"
13"Footprints came from the far"
14"She stood, knees cracking"
15"She turned slowly, letting the"
16"Candle stubs lay scattered across"
17"Quinn counted seven."
18"Someone had chalked a circle"
19"Half-buried in the wax, a"
ratio0.857
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences42
matches(empty)
ratio0
77.92% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences22
technicalSentenceCount2
matches
0"The needle inside had swung round to point at the wall beside the far tunnel mouth, trembling as if it had caught a scent."
1"Inside lay a small pale disc, smooth and yellowed, carved along the rim with a spiral that ran tighter toward the centre."
75.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags10
uselessAdditionCount1
matches
0"She stood, knees cracking"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount0
fancyTags(empty)
dialogueSentences31
tagDensity0.065
leniency0.129
rawRatio0
effectiveRatio0
90.0012%