Run: 2026-02-19-01KHV72HMWP848W55N2TBTR54D

Run Details

Duration:
44.3s
Cost:
$0.026838
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 station smelled of rust and old damp, the kind of smell that settled into your lungs and stayed there. Detective Harlow Quinn ducked under the police tape and clicked on her torch, sweeping the beam across the platform. Camden Tube — the one that never opened, the one that didn't appear on any map issued after 1942. She'd been down here once before, years ago, on an unrelated case. A body found by urban explorers. Even then the place had made the hairs on her arms stand up, and she'd put it down to the cold. Tonight it was something else. "Careful on the edge," called DS Petra Vance from behind her. "The platform lip's crumbling." Quinn already knew. She'd clocked it the moment she stepped off the maintenance ladder — a long section of the platform edge broken away, the concrete debris sitting on the track bed in a pattern that made no sense for simple decay. The pieces faced inward, not outward. As if something had pushed through from the track side. She crouched down and looked at the fragments without touching them. "Who called it in?" she asked. "Anonymous. Burner mobile registered to nobody." Vance appeared beside her, holding her own torch, twenty-eight years old and already carrying the careful neutrality of someone who had learned not to express opinions before her senior officer. "Uniform found the entrance hatch open when they arrived. No signs of forced entry." "On a hatch that's meant to be welded shut." "It was welded. The welds were cut. Cleanly." Quinn stood and turned in a slow circle. The torchlight slid over the old station walls — faded green tiling, a few rusted advertising frames still bolted up, one of them holding the ghost of a wartime poster, the ink long since bled to illegibility. Wooden market stalls ran the length of the platform. Not a few of them — dozens. Makeshift tables, folding trestles, display cases with their glass cracked or missing altogether. All of it abandoned in a hurry. A pewter cup on its side, a dark stain spreading from its mouth across the cloth beneath. A set of scales with one pan bent out of shape. Items scattered across the ground as though swept from surfaces by a single panicked arm. No body. That was what the call had reported. A body. "Where's the victim?" she asked. Vance pointed her torch toward the far end of the platform where the tunnel mouth opened into black. Two uniforms stood well back from a shape on the ground. Quinn walked the length of the market, taking her time, stepping around a knocked-over lantern, a leather-bound book with its pages fanned open, what appeared to be a glass jar filled with dried flowers or possibly teeth — she'd come back to that — and stopped when she reached the shape. A man. Mid-forties, dressed in a long coat that might have been oilskin once and was now something else, something that caught the torchlight strangely. He lay on his back with his arms at his sides. Not thrown, not twisted. Arranged, or fallen with a precision that bodies didn't manage on their own. His eyes were open and entirely silver. Not the clouded silver of cataract or death, but a clean, bright silver, like polished coin. Quinn looked at him for a long time. "Cause of death?" she asked. "Pathologist's on her way," Vance said, from two steps behind. "But visually, nothing obvious. No apparent wounds. No blood beyond that spillage at the stall back there, and it doesn't match the body's position." "Meaning?" "Meaning if he bled there, he moved here under his own power afterward." Quinn looked at the distance between the stall and the body. Eleven, twelve metres. She looked at the man's coat, his hands — no drag marks on the platform, no scuff on his palms, no indication he'd crawled. "He didn't walk it." She studied the sole of his left boot. "Look at the dust on this platform. Look at it." Vance leaned in. A thick, undisturbed layer of the old station's particular grey grime covered everything, decades of it, except for two places: the market stalls, where the disturbance was obvious and expected, and a rough circular area around the body. Within that circle, the dust was gone. Completely gone. Not swept — the platform stone beneath was clean in a way that stone left alone for eighty years was never clean. "Heat," Vance offered. "Some kind of intense localised heat could do that." "There's no scorch. No discolouration of the tile. Run your hand two centimetres above that surface and tell me if it's warm." Vance hesitated, then crouched and did it. "Cold," she admitted. "Colder than the rest of the platform." Quinn had already moved to the edge of the clean circle. She didn't step inside it. She studied it from where she stood and pulled a small notebook from her inside pocket, made a rough sketch of the shape. It wasn't quite circular. It had edges that caught faintly — she tilted her torch until the angle was right — faint lines in the stone itself. Grooves. Either very old or made to look it. She photographed them with her mobile. The photos came out dark and then, when she raised the brightness, showed nothing at all where the grooves should have been visible. She photographed them again. Same result. Vance was back on her feet. "The market stalls are the obvious angle. Someone running an unlicensed operation down here, rival party comes in, things go wrong—" "Look at this man's hands." Vance looked. The dead man's hands were folded now. Both officers had seen them flat at his sides thirty seconds ago. A long silence. "The uniforms move him?" Quinn asked. "No, ma'am." She crouched at the edge of the clean circle and pointed her torch at the nearest wall. In the green tiling, at roughly eye level if a person were sitting on the platform floor, someone had scratched three symbols. Recent — the scratches were bright against the old glaze, the ceramic dust still sitting in the grooves. She had seen one of those symbols before. On a small brass compass she'd recovered from the pocket of DS Morris three years ago, on the night he died in a way she had never been able to explain to anyone, including herself. Quinn straightened up slowly, the leather of her watch strap pressing into her wrist as she gripped the notebook. She kept her face as she always kept it — still, readable as nothing. "Get me a list of every business registered within a half-mile radius," she said. "And find out who owns the freehold on this station."
created_at"2026-02-19T15:07:41.484Z" 2/19/2026, 3:07:41 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency620
moderation_latency(null)
generation_time43707
tokens_prompt1149
tokens_completion1686
native_tokens_prompt1146
native_tokens_completion1560
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"
usage0.026838
router(null)
provider_responses
0
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
id"msg_01YXovUJJmtGbqUCgo6ZW5VN"
is_byokfalse
latency620
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771513661-BvcrowzJFUBFl9eUQK7B"
upstream_id"msg_01YXovUJJmtGbqUCgo6ZW5VN"
total_cost0.026838
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
totalTags10
adverbTagCount0
adverbTags(empty)
dialogueSentences26
tagDensity0.385
leniency0.769
rawRatio0
effectiveRatio0
86.65% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1124
totalAiIsmAdverbs3
found
0
adverb"completely"
count1
1
adverb"very"
count1
2
adverb"slowly"
count1
highlights
0"completely"
1"very"
2"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)
95.55% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1124
totalAiIsms1
found
0
word"silence"
count1
highlights
0"silence"
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
narrationSentences78
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences78
filterMatches
0"watch"
hedgeMatches
0"appeared to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences93
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen51
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1131
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
totalMentions22
wordCount926
uniqueNames6
maxNameDensity0.97
worstName"Quinn"
maxWindowNameDensity2.5
worstWindowName"Vance"
discoveredNames
Harlow1
Quinn9
Tube1
Petra1
Vance9
Morris1
persons
0"Harlow"
1"Quinn"
2"Petra"
3"Vance"
4"Morris"
places(empty)
globalScore1
windowScore0.833
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences55
glossingSentenceCount1
matches
0"appeared beside her, holding her own torch, twenty-eight years old and already carrying the careful neutrality of someone who had learned not to express opinions before her senior officer"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.884
wordCount1131
matches
0"Not the clouded silver of cataract or death, but a clean, bright silver, like polished coin"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences93
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs42
mean26.93
std26.69
cv0.991
sampleLengths
040
158
25
315
458
511
66
750
89
98
10124
1111
125
1380
1453
1523
168
175
1834
191
2013
2138
2222
2372
2412
2522
267
2710
2875
2929
306
3127
325
332
3419
353
366
372
3857
3943
4033
4124
96.27% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences78
matches
0"was gone"
1"were folded"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs151
matches
0"were sitting"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount12
semicolonCount0
flaggedSentences10
totalSentences93
ratio0.108
matches
0"Camden Tube — the one that never opened, the one that didn't appear on any map issued after 1942."
1"She'd clocked it the moment she stepped off the maintenance ladder — a long section of the platform edge broken away, the concrete debris sitting on the track bed in a pattern that made no sense for simple decay."
2"The torchlight slid over the old station walls — faded green tiling, a few rusted advertising frames still bolted up, one of them holding the ghost of a wartime poster, the ink long since bled to illegibility."
3"Not a few of them — dozens."
4"Quinn walked the length of the market, taking her time, stepping around a knocked-over lantern, a leather-bound book with its pages fanned open, what appeared to be a glass jar filled with dried flowers or possibly teeth — she'd come back to that — and stopped when she reached the shape."
5"She looked at the man's coat, his hands — no drag marks on the platform, no scuff on his palms, no indication he'd crawled."
6"Not swept — the platform stone beneath was clean in a way that stone left alone for eighty years was never clean."
7"It had edges that caught faintly — she tilted her torch until the angle was right — faint lines in the stone itself."
8"Recent — the scratches were bright against the old glaze, the ceramic dust still sitting in the grooves."
9"She kept her face as she always kept it — still, readable as nothing."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount918
adjectiveStacks0
stackExamples(empty)
adverbCount28
adverbRatio0.030501089324618737
lyAdverbCount7
lyAdverbRatio0.007625272331154684
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences93
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences93
mean12.16
std9.7
cv0.798
sampleLengths
021
119
219
312
46
521
65
711
84
93
1039
116
1210
1311
146
1536
1614
179
188
198
2037
219
227
2313
247
2517
2611
2715
282
297
302
315
3218
3311
3451
352
3623
3711
384
3913
407
4116
428
435
4410
4524
461
4713
4811
493
85.30% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.5376344086021505
totalSentences93
uniqueOpeners50
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences64
matches(empty)
ratio0
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount16
totalSentences64
matches
0"She'd been down here once"
1"She'd clocked it the moment"
2"She crouched down and looked"
3"He lay on his back"
4"His eyes were open and"
5"She looked at the man's"
6"She studied the sole of"
7"She didn't step inside it."
8"She studied it from where"
9"It wasn't quite circular."
10"It had edges that caught"
11"She photographed them with her"
12"She photographed them again."
13"She crouched at the edge"
14"She had seen one of"
15"She kept her face as"
ratio0.25
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount45
totalSentences64
matches
0"The abandoned station smelled of"
1"Detective Harlow Quinn ducked under"
2"Camden Tube — the one"
3"She'd been down here once"
4"A body found by urban"
5"Tonight it was something else."
6"Quinn already knew."
7"She'd clocked it the moment"
8"The pieces faced inward, not"
9"She crouched down and looked"
10"Vance appeared beside her, holding"
11"Quinn stood and turned in"
12"The torchlight slid over the"
13"A pewter cup on its"
14"A set of scales with"
15"Items scattered across the ground"
16"That was what the call"
17"Vance pointed her torch toward"
18"Quinn walked the length of"
19"He lay on his back"
ratio0.703
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount3
totalSentences64
matches
0"Even then the place had"
1"As if something had pushed"
2"Either very old or made"
ratio0.047
61.22% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences35
technicalSentenceCount4
matches
0"She'd clocked it the moment she stepped off the maintenance ladder — a long section of the platform edge broken away, the concrete debris sitting on the track b…"
1"Quinn walked the length of the market, taking her time, stepping around a knocked-over lantern, a leather-bound book with its pages fanned open, what appeared t…"
2"Mid-forties, dressed in a long coat that might have been oilskin once and was now something else, something that caught the torchlight strangely."
3"It had edges that caught faintly — she tilted her torch until the angle was right — faint lines in the stone itself."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags10
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags7
fancyCount1
fancyTags
0"she admitted (admit)"
dialogueSentences26
tagDensity0.269
leniency0.538
rawRatio0.143
effectiveRatio0.077
90.2778%