Run: 2026-02-19-01KHT0Y0D90ZF16464MGQ7NBRS

Run Details

Duration:
20.5s
Cost:
$0.009265
Provider:
Anthropic

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 abandoned Tube station smelled of rust and stagnant water. Detective Quinn descended the concrete stairs with her torch cutting through darkness that hadn't seen daylight in decades. The Metropolitan Police had cordoned off the platform with tape—bright yellow against the decay. The body lay on the tracks, positioned like a fallen statue. Middle-aged male. Three knife wounds clustered around the sternum. Standard mugging, the initial report had claimed. Wrong place, wrong time. A vagrant killed for whatever loose change rattled in his pockets. Quinn's jaw tightened. She crouched beside the corpse, studying the wounds without touching. The blade entry points were precise. Almost surgical. Her torch beam caught something—the surrounding tissue showed no bruising, no defensive marks on the hands. Most people fought back when stabbed. Even drunk, even surprised, the body's instinct kicked in. This man had stood still. "Found his wallet," a voice called from across the platform. Detective Sergeant Chen emerged from the shadows, holding an evidence bag. "Forty-three pounds inside. Credit cards, ID. If it was a robbery, they weren't interested in money." Quinn rose, her worn leather watch catching the torchlight as she checked the time. 11:47 p.m. The body had been reported at 10:15, discovered by a homeless man who'd taken shelter here. The station had been closed for structural surveys since August. According to the files, no one was supposed to be down here at all. "Who has access?" Quinn asked. "Council maintenance crews. That's it. The gates above are locked. Chain and padlock changed monthly." "And this gate?" Quinn gestured to the iron shutter blocking the north tunnel entrance, the one leading deeper underground. It hung partially open, rust flaking from the hinges. Chen frowned. "That wasn't mentioned in the report." Of course it wasn't. The responding officers had seen a body and made assumptions. Quinn pulled the shutter wider, testing its weight. Someone had oiled these hinges recently—the movement was smooth despite the corrosion. She swept her torch into the darkness beyond. The tunnel extended into black nothing. "I'll check," Chen started toward the opening. "Wait." Quinn returned to the body, examining the clothing more carefully. The man wore a grey suit, expensive, recently dry-cleaned. A far cry from the vagrant narrative. His shoes bore fresh polish. His fingernails were clean, manicured. The kind of man who took care of himself. She patted the jacket carefully. Nothing in the breast pocket. Inside breast pocket—empty. The shirt beneath bore a faint discoloration, a shadow where something had rested against the fabric. "He had something on him," Quinn muttered. "Something worn close to the chest." "Maybe they did rob him," Chen offered. "With surgical precision and no fight?" Quinn turned the body slightly, noting the angle of the wounds again. "And they left forty-three pounds in his wallet? No. This was personal. Targeted." She photographed the discoloration with her phone, making notes on her pad in sharp, precise handwriting. The suspect knew exactly where to strike. Knew the man wouldn't resist. Might have even known him. A sound drifted from the open shutter—water dripping deeper in the tunnel. Rhythmic. The kind of sound that echoed in old places. "His hands," Chen said suddenly. "Look at his hands." Quinn examined them. The fingernails were broken. Two were torn completely away, leaving raw crescents of exposed flesh beneath. Not defensive wounds—the damage was too uniform, too methodical. And the dirt embedded in the broken nails wasn't station dust. It was darker, almost mineral. "He was digging at something," Quinn said quietly. She stood and photographed his hands, the angle of his fingers, the way his left hand lay slightly curled as if still gripping something. Then she turned back to the tunnel. "When was this station actually used?" Quinn asked. "Closed to the public in 1941 during the Blitz. Reopened briefly in '46 for a few months, then sealed permanently. Too unstable. The tunnels beneath it—" Chen consulted his notebook, "—supposedly lead to medieval catacombs. London's old burial grounds." Medieval. Underground. Burial grounds. Quinn walked to the shutter and examined it again. There were scratches along the frame, as if something had been pulled through repeatedly. Fibres caught on the rust—dark, organic matter. She bagged them. The torch beam illuminated symbols scratched into the metal frame itself. Not gang tags or typical vandalism. These were deliberate, intentional markings. Protective sigils perhaps, or warnings. Quinn photographed each one, careful to capture the angle and depth of the scratches. "He was down there," she said, not turning from the symbols. "Before he came back up. Before he died." "But why would anyone—" "That's the question." Quinn finally looked at Chen. "The standard narrative doesn't hold up. Professional kill. Targeted victim. Someone who knew these tunnels existed, knew he'd be here, knew how to move through them without being seen. This wasn't a vagrant killing a rival for territory." She glanced back at the body, then at the shutter swinging gently on its oiled hinges, as if something had recently pushed through it. "We need to know who he is first. Real identity, not just the wallet. And we need to know who that wallet belongs to—because I'd wager the name on those cards isn't the name on his birth certificate." "You think he was running from someone?" Chen's voice carried uncertainty. Quinn didn't answer. Instead, she marked the shutter with tape and stepped back, letting her torch play across the entire platform one more time. The station wasn't random. The tunnel access wasn't coincidence. Someone had chosen this location deliberately, had knowledge of these forgotten places that most of London didn't have. She'd lost her partner, Morris, three years ago. A case that went wrong in ways she still couldn't explain. The official report had been sanitized, sealed. But Quinn had read between the lines. Had felt the strangeness that clung to those events like oil on water. This felt the same. "We're going to need access to the city's historical records," Quinn said, moving toward the stairs. "Every renovation, every sealed tunnel, every survey of these old stations. And I want to know where that gate came from. Who ordered its installation. When." "That's—that's a lot of legwork," Chen protested mildly. "Good thing you're here to help," Quinn said. She didn't look back as she climbed toward the surface, her torch beam preceding her into the dark. "And Chen? Don't mention the open shutter or the medieval tunnels in any reports. Not yet. Someone went to considerable effort to make this look like a random killing." She reached ground level and paused, checking her watch again. The leather band felt worn against her wrist, familiar. Steady. "They made a mistake," Quinn continued quietly. "They always do. Question is whether we're smart enough to see it before they clean up after themselves."
created_at"2026-02-19T04:01:06.482Z" 2/19/2026, 4:01:06 AM
model"anthropic/claude-4.5-haiku-20251001"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency478
moderation_latency(null)
generation_time20342
tokens_prompt1149
tokens_completion1857
native_tokens_prompt1145
native_tokens_completion1624
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)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.009265
router(null)
provider_responses
0
endpoint_id"41d2915a-92e6-4993-b537-210b4e10cba8"
id"msg_01Fz4Gy84PAm57fqG1dcVjTa"
is_byokfalse
latency478
model_permaslug"anthropic/claude-4.5-haiku-20251001"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771473666-z38Cgc4JdduAtkktzmRQ"
upstream_id"msg_01Fz4Gy84PAm57fqG1dcVjTa"
total_cost0.009265
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags18
adverbTagCount4
adverbTags
0"Chen said suddenly [suddenly]"
1"Quinn said quietly [quietly]"
2"Chen protested mildly [mildly]"
3"Quinn continued quietly [quietly]"
dialogueSentences32
tagDensity0.563
leniency1
rawRatio0.222
effectiveRatio0.222
65.22% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1150
totalAiIsmAdverbs8
found
0
adverb"carefully"
count2
1
adverb"slightly"
count2
2
adverb"suddenly"
count1
3
adverb"completely"
count1
4
adverb"gently"
count1
5
adverb"deliberately"
count1
highlights
0"carefully"
1"slightly"
2"suddenly"
3"completely"
4"gently"
5"deliberately"
80.00% AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions(empty)
found
0"Chen"
100.00% AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions(empty)
found(empty)
69.57% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1150
totalAiIsms7
found
0
word"standard"
count2
1
word"weight"
count1
2
word"rhythmic"
count1
3
word"echoed"
count1
4
word"methodical"
count1
5
word"familiar"
count1
highlights
0"standard"
1"weight"
2"rhythmic"
3"echoed"
4"methodical"
5"familiar"
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
narrationSentences102
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount1
narrationSentences102
filterMatches
0"watch"
hedgeMatches
0"started to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences115
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen40
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1136
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions15
unquotedAttributions0
matches(empty)
26.24% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions40
wordCount808
uniqueNames11
maxNameDensity2.48
worstName"Quinn"
maxWindowNameDensity3
worstWindowName"Quinn"
discoveredNames
Tube1
Quinn20
Metropolitan1
Police1
Detective2
Sergeant1
Chen9
August1
Medieval1
London2
Morris1
persons
0"Quinn"
1"Police"
2"Detective"
3"Sergeant"
4"Chen"
5"Morris"
places
0"Medieval"
1"London"
globalScore0.262
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences60
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1136
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences115
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs44
mean25.82
std16.82
cv0.652
sampleLengths
042
142
23
349
45
537
656
75
815
928
108
1142
126
137
1446
1529
1613
177
1831
1933
2022
219
2244
238
2431
258
2639
274
2833
2941
3019
314
3246
3324
3438
3511
3651
3746
384
3942
408
4155
4220
4325
84.62% Passive voice overuse
Target: ≤2% passive sentences
passiveCount6
totalSentences102
matches
0"been reported"
1"been closed"
2"was supposed"
3"were torn"
4"been pulled"
5"been sanitized"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs145
matches(empty)
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount8
semicolonCount0
flaggedSentences8
totalSentences115
ratio0.07
matches
0"The Metropolitan Police had cordoned off the platform with tape—bright yellow against the decay."
1"Her torch beam caught something—the surrounding tissue showed no bruising, no defensive marks on the hands."
2"Someone had oiled these hinges recently—the movement was smooth despite the corrosion."
3"Inside breast pocket—empty."
4"A sound drifted from the open shutter—water dripping deeper in the tunnel."
5"Not defensive wounds—the damage was too uniform, too methodical."
6"\"Closed to the public in 1941 during the Blitz. Reopened briefly in '46 for a few months, then sealed permanently. Too unstable. The tunnels beneath it—\" Chen consulted his notebook, \"—supposedly lead to medieval catacombs. London's old burial grounds.\""
7"Fibres caught on the rust—dark, organic matter."
93.68% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount720
adjectiveStacks0
stackExamples(empty)
adverbCount34
adverbRatio0.04722222222222222
lyAdverbCount12
lyAdverbRatio0.016666666666666666
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences115
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences115
mean9.88
std7.23
cv0.732
sampleLengths
010
118
214
311
42
57
67
74
811
93
1010
116
122
1316
146
159
165
1710
1811
1916
2014
212
2216
2310
2414
255
2615
2719
289
292
306
314
3210
338
3412
358
366
377
3811
399
407
415
425
439
445
455
463
4716
487
496
84.06% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats5
diversityRatio0.5304347826086957
totalSentences115
uniqueOpeners61
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences88
matches
0"Of course it wasn't."
1"Then she turned back to"
2"Instead, she marked the shutter"
ratio0.034
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount16
totalSentences88
matches
0"She crouched beside the corpse,"
1"Her torch beam caught something—the"
2"It hung partially open, rust"
3"She swept her torch into"
4"His shoes bore fresh polish."
5"His fingernails were clean, manicured."
6"She patted the jacket carefully."
7"She photographed the discoloration with"
8"It was darker, almost mineral."
9"She stood and photographed his"
10"She bagged them."
11"she said, not turning from"
12"She glanced back at the"
13"She'd lost her partner, Morris,"
14"She didn't look back as"
15"She reached ground level and"
ratio0.182
67.95% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount69
totalSentences88
matches
0"The abandoned Tube station smelled"
1"Detective Quinn descended the concrete"
2"The Metropolitan Police had cordoned"
3"The body lay on the"
4"Standard mugging, the initial report"
5"A vagrant killed for whatever"
6"Quinn's jaw tightened."
7"She crouched beside the corpse,"
8"The blade entry points were"
9"Her torch beam caught something—the"
10"This man had stood still."
11"a voice called from across"
12"Detective Sergeant Chen emerged from"
13"Quinn rose, her worn leather"
14"The body had been reported"
15"The station had been closed"
16"Quinn gestured to the iron"
17"It hung partially open, rust"
18"The responding officers had seen"
19"Quinn pulled the shutter wider,"
ratio0.784
56.82% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences88
matches
0"Even drunk, even surprised, the"
ratio0.011
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences32
technicalSentenceCount1
matches
0"Detective Quinn descended the concrete stairs with her torch cutting through darkness that hadn't seen daylight in decades."
97.22% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags18
uselessAdditionCount1
matches
0"she said, not turning from the symbols"
56.25% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags11
fancyCount3
fancyTags
0"Quinn muttered (mutter)"
1"Chen protested mildly (protest)"
2"Quinn continued quietly (continue)"
dialogueSentences32
tagDensity0.344
leniency0.688
rawRatio0.273
effectiveRatio0.188
82.7209%