Run: 2026-02-19-01KHSZAVH17Q7S8VCQYM32F0S8

Run Details

Duration:
40.9s
Cost:
$0.031785
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 smell hit Harlow first. Not the usual coppery tang of blood or the sickly-sweet decay of a long-undiscovered body, but something astringent and ancient, like old books soaked in chemical preservatives. Her flashlight beam cut through the gloom of the abandoned Tube station, dust particles dancing in its path. "Mind the third step, it's completely rotted through," she called back to the uniformed officer struggling behind her with the evidence kit. Twenty meters below Camden's busy streets lay what remained of a disused Underground station, closed since the 1940s. Now it housed something else entirely. Tables had been upended, strange merchandise scattered across the platform floor. The victim lay sprawled behind what might have once been a vendor stall, limbs akimbo. Quinn crouched beside the body, careful not to disturb the strange chalk markings that surrounded it. The man's eyes remained open, frozen in an expression of surprise rather than fear. No obvious wounds, no defensive marks on his hands. Yet the strange blue tinge to his lips suggested asphyxiation. "Second body this month found in a sealed-off Underground station," she murmured, snapping on latex gloves. "What are the chances?" She examined the scattered items nearest to the body—small brass trinkets, vials of colored liquids, leather-bound books with no titles. Nothing that should be worth killing over, at least in any normal market. The beam of another torch joined hers. Eva Kowalski picked her way carefully across the debris-strewn platform, her worn leather satchel bouncing against her hip as she navigated the scene. "Dr. Kowalski. Didn't expect to see the Museum sending anyone at this hour," Quinn straightened, one hand automatically checking the watch on her left wrist. Nearly midnight. "Detective Quinn." Eva adjusted her round glasses, tucking a strand of curly red hair behind her ear. "The station called the Museum's emergency conservation line when they found... well, all this." Quinn raised an eyebrow. "And they sent you? Bit unusual for a research assistant." "I specialized in artifact recovery during my master's program." Eva's green eyes didn't quite meet Quinn's. "The Museum has a particular interest in items trafficked through... unconventional channels." Quinn watched as Eva surveyed the scene with practiced efficiency, her freckled face betraying no shock at the body. Perhaps too little shock. "Your preliminary assessment?" Quinn asked, testing. "This was a market of some kind. Illicit antiquities, probably." Eva gestured toward the overturned tables. "The disarray suggests a dispute gone wrong, perhaps a deal that soured." Quinn moved to a section of wall where strange symbols had been painted in what looked like red ochre. "And these? Part of your illicit antiquities trade?" Eva's eyes widened slightly before she composed herself. "Protection symbols. Common in several ancient Mediterranean cultures." "Interesting that they're still wet." Quinn tapped the wall beside one marking. "Our victim's been dead approximately six hours according to the ME's initial estimate. These were painted after he died." A uniformed officer called from across the platform. "Detective, you need to see this." Quinn crossed to where the officer stood, Eva following a few paces behind. The officer held up a small brass object. "Found it clutched in the vic's hand. Had to pry his fingers open." Quinn accepted the item—a small brass compass, its face etched with intricate designs, similar to the wall markings. A patina of greenish verdigris coated portions of its casing. When she held it flat on her palm, the needle spun wildly before pointing directly at a section of seemingly solid wall. "Curious. Doesn't point north," she observed. Eva reached for it. "May I? It looks like a 19th-century nautical instrument. The Museum might have records—" Quinn pulled it away from Eva's outstretched hand. "Evidence first, Dr. Kowalski. Museum second." The forensic photographer finished with the body and moved to document the scattered merchandise. Quinn knelt again beside the victim, noting the blue tinge now spreading across his face. No obvious signs of trauma, yet his expression remained fixed in that moment of surprise. "What do you see as cause of death, Detective?" Eva asked, her voice carefully neutral. "No external trauma. Given the cyanosis, I'd suspect poison or asphyxiation," Quinn replied. "But there's something wrong with this scene." "Wrong how?" Quinn gestured around them. "Market dispute gone bad, as you suggested. But look at the pattern of the overturned tables. They're not scattered randomly—they form a rough circle around this area. Almost as if..." "As if someone was protecting something," Eva finished. "Or containing something." Quinn's eyes narrowed as she examined the chalk markings again. "These aren't random. They form a continuous line, broken only where someone stepped through them." She pointed to a smudge in the otherwise precise markings. Eva shifted her weight, clutching her satchel tighter. "Many ancient cultures believed in protective circles." "Did they also believe in carrying these?" Quinn held up a small, carved object she'd just noticed half-buried under debris. A token made from what appeared to be bone, etched with symbols matching those on the compass. Eva's face paled slightly beneath her freckles. "I've seen similar artifacts," she offered, her voice slightly higher than before. "Likely a religious token of some kind." Quinn pocketed both the token and the compass, noting Eva's eyes following her movements. "Three years ago, my partner disappeared investigating a case with similarities to this one. Different Underground station, similar unexplained circumstances." She fixed Eva with a hard stare. "The official report claimed he deserted, went abroad. I never believed it." "I'm sorry about your partner," Eva said softly. "DS Morris was tracking an underground smuggling network. Nothing ever connected on paper, but he was convinced they were moving through the Tube system somehow." Quinn swept her flashlight across the scene again. "He mentioned something called 'The Veil Market' in his notes. Mean anything to you, Dr. Kowalski?" Eva's hand went to her ear again, tucking back hair that wasn't loose. "I can't say that it does." "Interesting. Because our victim has a business card in his wallet for 'Veil Acquisitions,' with next month's full moon date circled on the back." Quinn turned her attention to the section of wall where the compass needle pointed steadily. She approached it, running her fingers across the surface. Solid brick, apparently. Yet as her flashlight played across it at an angle, she noticed the faintest outline of what might be a doorway. "The evidence doesn't add up to a simple antiquities dispute," she said, half to herself. "The body position suggests surprise, not confrontation. The protective markings were made after death. And this—" she held up the compass again, watching its needle tremble slightly while pointing resolutely at the wall, "—is no ordinary navigation tool." "What's your theory, then?" Eva asked, her voice careful. "I believe our victim was selling something very specific. Something valuable enough to kill for. But not in any conventional market." Quinn turned back to Eva. "The Museum sent their occult specialist, not their antiquities expert. Why is that, Dr. Kowalski?" Eva's green eyes widened behind her glasses. "I never said I was—" "Your ID badge. It lists your department as 'Restricted Archives—Occult Section.' Curious thing to have at a prestigious institution like the British Museum." Eva clutched her satchel tighter, her knuckles whitening. "Detective, what exactly are you implying?" "I'm not implying anything. I'm stating facts. This scene has been staged to look like a market dispute, but it's really something else. The victim died of fear, not violence. The protective circle was broken from the outside, not the inside." Quinn stepped closer to Eva. "And you know far more about this Veil Market than you're letting on." The station's emergency lights flickered, casting strange shadows across the platform. In that momentary darkness, Quinn thought she saw something move near the wall where the compass pointed.
created_at"2026-02-19T03:33:10.316Z" 2/19/2026, 3:33:10 AM
model"anthropic/claude-3-7-sonnet-20250219"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency476
moderation_latency(null)
generation_time40826
tokens_prompt1149
tokens_completion2166
native_tokens_prompt1145
native_tokens_completion1890
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"
usage0.031785
router(null)
provider_responses
0
endpoint_id"1347c8dc-12f5-47df-8355-3ec7e80a8c67"
id"msg_01Mo8SVG7JEYrQamsBQQ4mYG"
is_byokfalse
latency476
model_permaslug"anthropic/claude-3-7-sonnet-20250219"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771471990-WyaejFu6N3crydaUY2Zn"
upstream_id"msg_01Mo8SVG7JEYrQamsBQQ4mYG"
total_cost0.031785
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags24
adverbTagCount2
adverbTags
0"Eva said softly [softly]"
1"Quinn turned back [back]"
dialogueSentences50
tagDensity0.48
leniency0.96
rawRatio0.083
effectiveRatio0.08
61.86% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1311
totalAiIsmAdverbs10
found
0
adverb"completely"
count1
1
adverb"carefully"
count2
2
adverb"slightly"
count4
3
adverb"softly"
count1
4
adverb"very"
count1
5
adverb"really"
count1
highlights
0"completely"
1"carefully"
2"slightly"
3"softly"
4"very"
5"really"
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)
58.05% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1311
totalAiIsms11
found
0
word"gloom"
count1
1
word"dancing"
count1
2
word"tinge"
count2
3
word"navigated"
count1
4
word"eyebrow"
count1
5
word"etched"
count2
6
word"intricate"
count1
7
word"weight"
count1
8
word"flickered"
count1
highlights
0"gloom"
1"dancing"
2"tinge"
3"navigated"
4"eyebrow"
5"etched"
6"intricate"
7"weight"
8"flickered"
33.33% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches3
maxInWindow3
found
0
label"eyes widened/narrowed"
count3
highlights
0"eyes widened"
1"eyes narrowed"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences70
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount1
narrationSentences70
filterMatches(empty)
hedgeMatches
0"appeared to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences96
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen46
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1300
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions15
unquotedAttributions0
matches(empty)
0.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions51
wordCount739
uniqueNames9
maxNameDensity2.98
worstName"Quinn"
maxWindowNameDensity5
worstWindowName"Quinn"
discoveredNames
Harlow1
Tube1
Twenty1
Camden1
Underground1
Kowalski1
Nearly1
Quinn22
Eva22
persons
0"Camden"
1"Kowalski"
2"Quinn"
3"Eva"
places(empty)
globalScore0.012
windowScore0
11.11% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences54
glossingSentenceCount3
matches
0"quite meet Quinn's"
1"looked like red ochre"
2"t a section of seemingly solid wall"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1300
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences96
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs49
mean26.53
std15.03
cv0.566
sampleLengths
050
122
250
349
420
533
630
727
831
914
1028
1123
126
1328
1427
1516
1631
1714
1821
1913
2050
216
2218
2314
2444
2515
2620
272
2834
298
3038
3115
3237
337
3419
3553
368
3749
3819
3924
4048
4153
429
4341
4412
4523
4614
4759
4828
95.24% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences70
matches
0"been upended"
1"been painted"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs126
matches(empty)
53.57% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount3
semicolonCount0
flaggedSentences3
totalSentences96
ratio0.031
matches
0"She examined the scattered items nearest to the body—small brass trinkets, vials of colored liquids, leather-bound books with no titles."
1"Quinn accepted the item—a small brass compass, its face etched with intricate designs, similar to the wall markings."
2"\"The body position suggests surprise, not confrontation. The protective markings were made after death. And this—\" she held up the compass again, watching its needle tremble slightly while pointing resolutely at the wall, \"—is no ordinary navigation tool.\""
92.72% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount774
adjectiveStacks0
stackExamples(empty)
adverbCount35
adverbRatio0.04521963824289406
lyAdverbCount18
lyAdverbRatio0.023255813953488372
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences96
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences96
mean13.54
std7.87
cv0.581
sampleLengths
05
127
218
322
418
56
611
715
816
914
109
1110
1216
134
1420
1513
167
1723
1825
192
2017
2114
224
2310
2416
2512
2619
274
286
2916
3012
3119
328
338
348
3512
3619
378
386
3913
408
4113
4218
4310
4422
456
464
4714
488
496
78.82% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats1
diversityRatio0.4791666666666667
totalSentences96
uniqueOpeners46
50.51% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences66
matches
0"Perhaps too little shock."
ratio0.015
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount10
totalSentences66
matches
0"Her flashlight beam cut through"
1"she called back to the"
2"she murmured, snapping on latex"
3"She examined the scattered items"
4"She pointed to a smudge"
5"she offered, her voice slightly"
6"She fixed Eva with a"
7"She approached it, running her"
8"she said, half to herself"
9"she held up the compass"
ratio0.152
43.33% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount55
totalSentences66
matches
0"The smell hit Harlow first."
1"Her flashlight beam cut through"
2"she called back to the"
3"Tables had been upended, strange"
4"The victim lay sprawled behind"
5"Quinn crouched beside the body,"
6"The man's eyes remained open,"
7"she murmured, snapping on latex"
8"She examined the scattered items"
9"Nothing that should be worth"
10"The beam of another torch"
11"Eva Kowalski picked her way"
12"Quinn straightened, one hand automatically"
13"Eva adjusted her round glasses,"
14"Quinn raised an eyebrow."
15"Eva's green eyes didn't quite"
16"Quinn watched as Eva surveyed"
17"Quinn asked, testing"
18"Eva gestured toward the overturned"
19"Quinn moved to a section"
ratio0.833
75.76% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences66
matches
0"Now it housed something else"
ratio0.015
89.95% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences27
technicalSentenceCount2
matches
0"Quinn crouched beside the body, careful not to disturb the strange chalk markings that surrounded it."
1"Quinn pocketed both the token and the compass, noting Eva's eyes following her movements."
41.67% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags24
uselessAdditionCount4
matches
0"Eva asked, her voice carefully neutral"
1"she offered, her voice slightly higher than before"
2"she said, half to herself"
3"Eva asked, her voice careful"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags8
fancyCount2
fancyTags
0"she murmured (murmur)"
1"she observed (observe)"
dialogueSentences50
tagDensity0.16
leniency0.32
rawRatio0.25
effectiveRatio0.08
79.5304%