Run: 2026-10-08-01M4DAF4NGPGC2A7D2TTX8T1S2

Run Details

Duration:
27.6s
Cost:
$0.002360
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 hoarding behind Camden Road had been painted over so many times that the graffiti had grown a crust. Someone had prised one plank loose, and Harlow Quinn ducked through the gap with her torch already on. The air changed before her boots found the first step. It wasn't the damp chill of a tunnel. It was dry and metallic, like the back of a fridge somebody had forgotten to shut. The constable at the foot of the stairs logged her name without looking up from his clipboard. "Platform's through the arch, ma'am. DI Pryce is already down there." "Is he making the scene or ruining it?" "Bit of both, I'd say." The station had died sometime before the war, judging by the tiles. Cream and terracotta, a name in faded enamel that had lost its last three letters. Water dripped somewhere in the dark, each drop landing with a pause long enough to count. Quinn counted four before she reached the platform edge. Gareth Pryce stood with his back to the rails, a paper cup of coffee in one hand, as though the whole thing bored him. He lifted the cup at her. "Harlow. Didn't think they'd wake you for a dead bloke in a hole." "They didn't. I was up." She stepped past him and looked down. The man sat against the far wall with his legs stretched out, as if he had stopped to rest on the way to a train that had not run in seventy years. Early fifties. Grey suit, good cut, a wedding band that caught her torch. His eyes were open. His mouth was slightly open too, like he had been about to speak and changed his mind. "Heart, most likely," Pryce said. "Or he came down the stairs too fast in the dark and went arse over tip. Caught the edge of the platform on the way down. We'll have the post-mortem by Thursday." Quinn crouched beside the body. She did not touch it yet. "He fell, then sat himself up against the wall afterwards?" "People do strange things when they're hurt." "They do." She tilted her torch across the floor. The grime lay thick enough to hold a print. Along the platform, a single line of boot prints came in from the stairwell, heading straight toward the body. They stopped a metre short of him. There were no prints leading away from him, and none beside him. "Those are his," Pryce said, following her light. "He walked in, same as us." "Then where are the marks of his shoes beside the body? If he walked to that spot and sat down, the dust would show his heels dragging, or his hands where he braced himself." She ran her light along the wall above the victim's head. The tiles were clean in a patch the size of a dinner plate, as though something had leaned there and wiped the dust away. "Look at his jacket." "What about it?" "No tears. No grit on the elbows or the back. Nothing on the knees, either. You fall down forty steps onto a concrete lip, you tear something. But the left shoulder of that suit is covered in a fine grey film. Right shoulder's spotless." Pryce sipped his coffee and said nothing for a moment. "Could've leaned on something dusty on the way in." "Could have." She leaned closer, careful of her breath. "Now his hands." The victim's palms were pale and unmarked. The fingernails were clean, trimmed, with no black crescents underneath. Quinn lifted the right hand by the wrist. The fist was closed around something small and brass, slick with a crust of green along its rim. "Compass," Pryce said. "Tourist rubbish. They sell those by the dozen on Camden High Street." "Do they sell ones with sigils etched around the face?" She turned the casing so the light caught it. Tiny marks ran in a ring, each one cut so precisely it looked machined, and yet the lines were too old and too strange for any shop she knew. The needle trembled under the glass, swung, and settled, pointing past the body toward the far end of the platform where the tunnel curved into black. "Compasses wobble when they're near metal," Pryce said. "Lines run under here, don't they? Tube trains. Cables." "Then why does it point at a wall with no tracks behind it?" She let the compass rest in her palm. "The needle's steady now. It was moving when I crouched down." Pryce gave a short laugh that had no humour in it. "You're spooking yourself. It's a dead man in a dark hole." Quinn's gaze moved to his wrist. A steel watch, the face cracked across one corner, the hands stopped at 11:52. She glanced at her own watch, the worn leather strap gone soft from eighteen years of wear, and saw the second hand still moving steadily. "His watch stopped at eleven fifty-two," she said. "Battery, probably." "It's wound. Mechanical. Look at the crown." She pointed with her pen. "Someone pulled it out to set it, and it never went back in. Or somebody held it still." Pryce set his cup down on the platform edge. "Harlow, what exactly are you suggesting?" She didn't answer straight away. She stood and walked the length of the single line of prints, placing her boots in the faint impressions where the dust had been pressed. The stride was long and even, the walk of someone who knew exactly where they were going. Halfway along, the prints began to fade, not because they grew shallower but because the surface looked as though it had been wiped. A clean arc crossed the grime near the tunnel mouth, the width of a long coat's hem. At the wall the prints simply ended. No stairs in that direction. No door. Just cracked tiles and a bricked arch that had been sealed decades ago. "He came down the stairs, walked up to this wall, and then nobody walked back out," she said. "Whoever brought him here didn't leave the same way." "They swept up after themselves," Pryce said, stepping closer. "Took the dust with them." "With what? There's no broom mark. No scrape." She crouched again beside the victim and brushed a finger along the top of his shoe. A fine powder came away, but it was pale, almost silver, and it did not look like the grey film on his shoulder. "And he was carried. Or dragged to that spot, then propped up. Someone wanted him to look like he'd sat down to rest." The compass needle trembled once more in her palm. Quinn looked up at the bricked arch, and then down at the dead man's open eyes, and understood that somebody had gone to a great deal of trouble to make this look ordinary.
created_at"2026-10-08T08:35:52.121Z" 10/8/2026, 8:35:52 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency27562
moderation_latency(null)
generation_time27562
tokens_prompt1112
tokens_completion1582
native_tokens_prompt1597
native_tokens_completion4401
native_tokens_completion_images(null)
native_tokens_reasoning2290
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"
usage0.0023602
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791448552-xQPWJ8XXsM57NtK88Bvs"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791448552-hWEHyWkXV1vt60qvWfXV"
upstream_id"msg_011CfpTtAkswtvgE8t7aKZje"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfpTtAkswtvgE8t7aKZje"
is_byokfalse
latency740
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0023602
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
totalTags15
adverbTagCount1
adverbTags
0"She crouched again [again]"
dialogueSentences38
tagDensity0.395
leniency0.789
rawRatio0.067
effectiveRatio0.053
91.24% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1141
totalAiIsmAdverbs2
found
0
adverb"slightly"
count1
1
adverb"precisely"
count1
highlights
0"slightly"
1"precisely"
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)
78.09% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1141
totalAiIsms5
found
0
word"chill"
count1
1
word"etched"
count1
2
word"trembled"
count2
3
word"mechanical"
count1
highlights
0"chill"
1"etched"
2"trembled"
3"mechanical"
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)
97.51% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences63
filterMatches
0"watch"
hedgeMatches
0"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences86
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
totalWords1141
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions10
unquotedAttributions0
matches(empty)
83.33% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions19
wordCount759
uniqueNames6
maxNameDensity1.19
worstName"Pryce"
maxWindowNameDensity2.5
worstWindowName"Pryce"
discoveredNames
Camden1
Road1
Harlow1
Quinn6
Pryce9
Tiny1
persons
0"Harlow"
1"Quinn"
2"Pryce"
3"Tiny"
places
0"Camden"
1"Road"
globalScore0.907
windowScore0.833
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences49
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1141
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences86
matches
0"understood that somebody"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs35
mean32.6
std23.42
cv0.718
sampleLengths
071
128
28
35
452
543
612
766
837
921
107
1156
1214
1373
143
1544
1619
1712
1843
1915
2074
2117
2232
2322
2445
258
262
2730
2815
2987
3027
3127
3214
3370
3442
82.99% Passive voice overuse
Target: ≤2% passive sentences
passiveCount4
totalSentences63
matches
0"been painted"
1"been pressed"
2"been wiped"
3"been sealed"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs120
matches
0"were going"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences86
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount759
adjectiveStacks0
stackExamples(empty)
adverbCount26
adverbRatio0.034255599472990776
lyAdverbCount6
lyAdverbRatio0.007905138339920948
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences86
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences86
mean13.27
std8.9
cv0.67
sampleLengths
019
118
210
38
416
517
611
78
85
912
1015
1116
129
1324
146
1513
1612
1732
182
1911
204
2117
225
2332
245
256
2610
277
289
299
3019
317
3212
338
346
3545
3624
374
383
3944
4010
419
429
433
447
4510
468
4718
483
4912
82.17% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats6
diversityRatio0.5348837209302325
totalSentences86
uniqueOpeners46
59.52% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences56
matches
0"Just cracked tiles and a"
ratio0.018
91.43% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount18
totalSentences56
matches
0"It wasn't the damp chill"
1"It was dry and metallic,"
2"He lifted the cup at"
3"She stepped past him and"
4"His eyes were open."
5"His mouth was slightly open"
6"She did not touch it"
7"She tilted her torch across"
8"They stopped a metre short"
9"She ran her light along"
10"She leaned closer, careful of"
11"She turned the casing so"
12"She let the compass rest"
13"She glanced at her own"
14"She pointed with her pen"
15"She didn't answer straight away."
16"She stood and walked the"
17"She crouched again beside the"
ratio0.321
22.50% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount49
totalSentences56
matches
0"The hoarding behind Camden Road"
1"Someone had prised one plank"
2"The air changed before her"
3"It wasn't the damp chill"
4"It was dry and metallic,"
5"The constable at the foot"
6"The station had died sometime"
7"Cream and terracotta, a name"
8"Water dripped somewhere in the"
9"Quinn counted four before she"
10"Gareth Pryce stood with his"
11"He lifted the cup at"
12"She stepped past him and"
13"The man sat against the"
14"His eyes were open."
15"His mouth was slightly open"
16"Quinn crouched beside the body."
17"She did not touch it"
18"She tilted her torch across"
19"The grime lay thick enough"
ratio0.875
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences56
matches(empty)
ratio0
95.24% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences30
technicalSentenceCount2
matches
0"Gareth Pryce stood with his back to the rails, a paper cup of coffee in one hand, as though the whole thing bored him."
1"Grey suit, good cut, a wedding band that caught her torch."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags15
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags7
fancyCount0
fancyTags(empty)
dialogueSentences38
tagDensity0.184
leniency0.368
rawRatio0
effectiveRatio0
89.4670%