Run: 2026-02-17-01KHMQE6P7F6CWD14Z4B9EHDNS

Run Details

Duration:
23.0s
Cost:
$0.010778
Provider:
Anthropic

Model input

System
You are an expert novelist with a gift for vivid, immersive prose. You write in tight third-person limited point of view with a strong narrative voice. Your prose is clean, precise, and engaging — you favor strong verbs, concrete details, and natural-sounding dialogue. You will be given a story bible (codex) containing canonical details about characters, locations, items, and lore. Use these details to ground your writing in the established world. Stay consistent with the codex. Write only the prose of the scene. Do not include titles, chapter headings, markdown formatting, or any commentary before or after the scene.
User/Human
<codex> <character id="4412" name="Aurora Carter" aliases="Rory, Laila, Aurora, Carter, Malphora" pronouns="she/her" species="Human" storyRole="Protagonist"> <eyeColor>bright blue</eyeColor> <hair>straight shoulder-length black</hair> <height>5'6"</height> <age>25</age> <scar>small crescent-shaped scar on her left wrist from a childhood accident</scar> <description>Aurora, referred to by her friends as Rory, is cool-headed, intelligent, and known for quick out-of-the-box thinking.</description> <backstory>Born in Cardiff to an Irish barrister father (Brendan Carter) and Welsh teacher mother (Jennifer Carter née Ellis), Rory reluctantly pursued Pre-Law at Cardiff University. She fled to London at the behest of her childhood friend Eva after leaving an abusive ex named Evan. By day, Rory works part-time as a delivery person for Yu-Fei Cheung's Golden Empress restaurant. She lives in a flat above Silas' bar.</backstory> </character> <location id="861" name="The Fae Grove" aliases="Isolde's grove, Richmond grove, the Grove" realm="Earth (Fae-touched)"> <parkLocation>Richmond Park</parkLocation> <standingStones>ancient oak standing stones mark the boundary</standingStones> <timeBehavior>time moves differently — an hour inside can be minutes or days outside</timeBehavior> <flora>wildflowers bloom year-round</flora> <description>A hidden clearing that exists in a pocket between Earth and the Fae realm.</description> </location> <item id="2001" name="Heartstone Pendant" aliases="the pendant, Heartstone" type="Artifact" origin="Dymas"> <gemstoneColor>deep crimson</gemstoneColor> <chainMaterial>silver chain</chainMaterial> <size>roughly the size of a thumbnail</size> <behavior>pulses faintly with warmth when near a Hel portal</behavior> <glow>faint inner glow</glow> <description>Given to Aurora by an unknown benefactor.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the horror genre. A character is alone in a strange, isolated place at night. They came here for a reason, but something feels off from the moment they arrive. The wrongness builds slowly — sounds that shouldn't be there, things that move at the edge of vision, a growing certainty that they are not alone. Build tension through restraint, not through gore. Use the codex entries above as your world reference for the character and setting. Only include the prose of the scene without any markdown or commentary.

Model response

AI
Rory ducked beneath the oak's lowest branch, her breath misting in the November air. The boundary stones rose before her like crooked teeth, older than memory, their bark crusted with lichen that gleamed silver in the moonlight. She'd memorized the way here during daylight reconnaissance, but at night, Richmond Park became a different animal. The usual dog walkers and joggers were long gone, replaced by the susurrus of wind through bare branches and the distant sound of traffic bleeding through from the A307. The Heartstone pendant hung warm against her collarbone. That was new—it had been cool when she'd left the flat an hour ago, hanging beneath her jumper like it always did. Now it pulsed with a steady, faint heat that she could feel even through the layers of fabric. She'd come to the grove because of the dreams. Three nights running, she'd woken with the taste of copper on her tongue and the image of that clearing seared into her mind. Not just any clearing—*that* clearing, the one with the perpetually blooming wildflowers that shouldn't exist in November, the one that existed in a fold between worlds. Isolde's grove, Eva had called it once, before she'd made Rory promise never to go back alone. But Eva wasn't answering her phone anymore. And the dreams were getting worse. The pendant pulsed again, warmer now. Rory's jaw tightened. A Hel portal. That's what the heat meant. Somewhere nearby, the boundary between worlds was thinning. She stepped through the standing stones. The temperature dropped immediately, ten degrees in the space between one breath and the next. Her lungs seized. She could see her breath now—not the fine misting of a cold night, but thick plumes of vapor as if she'd stepped into a freezer. The shift was so abrupt that her body protested, a primal resistance that made her teeth ache. The grove spread before her, looking exactly as she remembered it. Wildflowers in impossible profusion—lupines and foxgloves and roses that should have withered weeks ago. The grass was green and thick, springy beneath her trainers. Above, the sky was a different quality of dark than the sky outside; the stars were dimmer, somehow farther away, as if she were viewing them through layers of glass. The pendant's pulse had become a steady throb now, insistent as a heartbeat. Rory moved into the clearing, her senses stretched taut. The air tasted wrong—sweet and mineral, like licking a battery. Her ears popped as if she were ascending in an aeroplane. She'd been in the grove before, briefly, but never at night. Never alone. The place felt different in the dark, watchful in a way that made her aware of how utterly isolated she was. No ambient sound of traffic now. No distant hum of human civilization. Just the wind—which didn't quite sound like wind, she realized. It had a hollow quality, like breath through teeth. She moved deeper into the clearing, toward the heart of it where the flowers grew thickest. The pendant burned now, almost uncomfortably hot. Whatever portal it sensed, she was getting closer. That's when she heard it. A sound like footsteps on the far side of the clearing. Not tentative, uncertain footsteps—confident ones. Someone walking at a normal pace through the grass and flowers, as if they belonged here. Rory's hand went to her jacket pocket, where she'd stuffed the small canister of pepper spray Eva had insisted she carry. Her eyes strained in the darkness, trying to pierce the shadows at the grove's edge. The flowers seemed to glow faintly here, their colors deepened by the strange light. Reds looked black. The whites looked gray. The footsteps stopped. "Who's there?" Rory called out. Her voice sounded smaller than she'd intended, swallowed by the non-air of the place. She cleared her throat, tried again. "I know you're there. I heard you." Nothing. The wind that wasn't quite wind rustled through the flowers. A scent drifted across the clearing—sweet rot, like fruit left too long in the sun. The smell made her stomach turn. The pendant pulsed, and for just a moment she could have sworn it blazed with crimson light bright enough to see by. She spun around, but the clearing was empty. Just wildflowers and dark and the breathing of that strange wind. There. Movement at the edge of her vision. Just a shadow, just a shape passing between two denser clusters of flowering vines. Too tall to be a deer. Too purposeful to be anything wild. "Eva?" Rory's voice cracked slightly. "Is that you?" The shape stopped moving. In the silence that followed, Rory became aware of how her own breathing sounded—loud, rapid, the sound of prey animal prey. Her hands were trembling. She curled them into fists. Then came a sound that froze her completely. It was laughter—except it wasn't. It had the shape and rhythm of laughter, but the texture was wrong. It sounded like wind over broken glass, like air escaping from a tomb, like something remembering the shape of joy without ever having felt it. Every muscle in Rory's body went rigid. The shape moved again, crossing the clearing in the periphery of her vision. When she turned her head to look directly at it, there was nothing there. But the moment her eyes moved away, she could sense it again—a dark shape, man-shaped but subtly wrong about the proportions. The arms seemed too long. The head sat at an angle that shouldn't have been comfortable. The pendant was incandescent now, a point of burning heat at her throat that made her want to rip it off. She forced her hands to stay still. "What are you?" she whispered. The laughing-that-wasn't-laughter came again, closer this time. It seemed to come from behind her. She spun, but the clearing was empty. Or full. She couldn't quite tell anymore. There seemed to be movement everywhere now—shadows flowing between the flowers, shapes that resolved into nothing the moment she focused on them. The wind picked up, carrying that rotten-fruit stench, and the flowers began to sway in patterns that didn't match the direction of the wind. Rory's breath came in short, sharp gasps. Her vision was beginning to tunnel. The pendant burned against her skin, and she realized with horrible clarity that she'd made a mistake. Coming here. Coming alone. Coming at night. A sound. Not wind now. Whispering. Multiple voices, speaking in a language that predated human language, a tongue made of empty spaces and held breath and the sound of something ancient stirring in the dark. The words meant nothing and everything. They conveyed urgency. Hunger. An awful, specific interest in her. The shape materialized in front of her. It was there one moment, not there the next. Fully corporeal, close enough to touch. She could see the outline of it—the too-long arms, the head that tilted at that impossible angle. She couldn't see features, exactly, but she could feel the weight of its attention, a pressure against her mind like deep water pressing on a submerged thing. Rory's hand found the pepper spray. She yanked it free and fired. The canister hissed. The spray hung in the air for a split-second and then dissipated as if the air itself had refused to carry it. The shape didn't move. Didn't react. But the whispering intensified, becoming a chorus, becoming a sound that was almost like applause. Rory ran. She crashed through the wildflowers, not caring which direction, only knowing she had to get to the boundary stones, had to get out, had to get back to a world where things obeyed the laws of physics and didn't laugh like breaking glass. The flowers seemed to grab at her ankles—she fell, hands slamming into the grass, and she felt it then, a touch on the back of her neck. Not quite contact. Close enough. The pendant blazed with impossible heat. She scrambled to her feet and ran. The oak boundary stones loomed before her, ancient and solid and real. She threw herself between them and fell to her knees on the cold November grass of Richmond Park, gasping, shaking, feeling the night air of the actual world rush into her lungs like salvation. Behind her, beyond the stones, the whispering had stopped. But she could still feel it. Waiting. Patient. Interested. The pendant was cooling against her chest, but it no longer felt like protection. It felt like a beacon. And somewhere in the darkness behind her, she was sure she could hear that terrible laughing resume.
created_at"2026-02-17T02:39:23.319358+00:00" 2/17/2026, 2:39:23 AM
model"anthropic/claude-4.5-haiku-20251001"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency412
moderation_latency178
generation_time22069
tokens_prompt812
tokens_completion2170
native_tokens_prompt838
native_tokens_completion1988
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"
usage0.010778
router(null)
provider_responses
0
id"msg_01GmHCMbHqh7ZjTkwFRpq8T9"
status200
is_byokfalse
latency412
endpoint_id"41d2915a-92e6-4993-b537-210b4e10cba8"
provider_name"Anthropic"
model_permaslug"anthropic/claude-4.5-haiku-20251001"
api_type"completions"
id"gen-1771295939-leZCWYYG4Qt1ulnNkuqk"
upstream_id"msg_01GmHCMbHqh7ZjTkwFRpq8T9"
total_cost0.010778
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
totalTags3
adverbTagCount1
adverbTags
0"Rory's voice cracked slightly [slightly]"
dialogueSentences5
tagDensity0.6
leniency1
rawRatio0.333
effectiveRatio0.333
89.55% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1436
totalAiIsmAdverbs3
found
0
adverb"utterly"
count1
1
adverb"slightly"
count1
2
adverb"completely"
count1
highlights
0"utterly"
1"slightly"
2"completely"
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)
40.81% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1436
totalAiIsms17
found
0
word"pulsed"
count3
1
word"could feel"
count2
2
word"pulse"
count1
3
word"throb"
count1
4
word"footsteps"
count3
5
word"stomach"
count1
6
word"silence"
count1
7
word"comfortable"
count1
8
word"resolved"
count1
9
word"weight"
count1
10
word"loomed"
count1
11
word"beacon"
count1
highlights
0"pulsed"
1"could feel"
2"pulse"
3"throb"
4"footsteps"
5"stomach"
6"silence"
7"comfortable"
8"resolved"
9"weight"
10"loomed"
11"beacon"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"hung in the air"
count1
highlights
0"hung in the air"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences134
matches(empty)
78.89% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount6
narrationSentences134
filterMatches(empty)
hedgeMatches
0"seemed to"
1"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences136
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen43
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans1
markdownWords1
totalWords1423
ratio0.001
matches
0"that"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions7
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions27
wordCount1407
uniqueNames8
maxNameDensity0.85
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Rory"
discoveredNames
November3
Richmond2
Park2
Heartstone1
Eva3
Rory12
Hel1
Coming3
persons
0"Eva"
1"Rory"
places
0"November"
1"Richmond"
2"Park"
globalScore1
windowScore1
43.62% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences94
glossingSentenceCount4
matches
0"quite sound like wind, she realized"
1"quite wind rustled through the flowers"
2"sounded like wind over broken glass, like"
3"felt like protection"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.703
wordCount1423
matches
0"not the fine misting of a cold night, but thick plumes of vapor as if she'd stepped into a freezer"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences136
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs40
mean35.58
std25.61
cv0.72
sampleLengths
083
148
275
313
425
56
660
765
813
995
1031
115
1232
1357
143
1532
1654
1719
1834
198
2034
2151
227
2364
2428
255
2674
2737
2851
297
3059
3112
3246
332
3475
356
3653
3718
3819
3917
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences134
matches(empty)
0.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount8
totalVerbs238
matches
0"wasn't answering"
1"were getting"
2"was thinning"
3"were viewing"
4"were ascending"
5"was getting"
6"was beginning"
7"was cooling"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount14
semicolonCount1
flaggedSentences15
totalSentences136
ratio0.11
matches
0"That was new—it had been cool when she'd left the flat an hour ago, hanging beneath her jumper like it always did."
1"Not just any clearing—*that* clearing, the one with the perpetually blooming wildflowers that shouldn't exist in November, the one that existed in a fold between worlds."
2"She could see her breath now—not the fine misting of a cold night, but thick plumes of vapor as if she'd stepped into a freezer."
3"Wildflowers in impossible profusion—lupines and foxgloves and roses that should have withered weeks ago."
4"Above, the sky was a different quality of dark than the sky outside; the stars were dimmer, somehow farther away, as if she were viewing them through layers of glass."
5"The air tasted wrong—sweet and mineral, like licking a battery."
6"Just the wind—which didn't quite sound like wind, she realized."
7"Not tentative, uncertain footsteps—confident ones."
8"A scent drifted across the clearing—sweet rot, like fruit left too long in the sun."
9"In the silence that followed, Rory became aware of how her own breathing sounded—loud, rapid, the sound of prey animal prey."
10"It was laughter—except it wasn't."
11"But the moment her eyes moved away, she could sense it again—a dark shape, man-shaped but subtly wrong about the proportions."
12"There seemed to be movement everywhere now—shadows flowing between the flowers, shapes that resolved into nothing the moment she focused on them."
13"She could see the outline of it—the too-long arms, the head that tilted at that impossible angle."
14"The flowers seemed to grab at her ankles—she fell, hands slamming into the grass, and she felt it then, a touch on the back of her neck."
89.78% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1428
adjectiveStacks1
stackExamples
0"thick, springy beneath her"
adverbCount64
adverbRatio0.04481792717086835
lyAdverbCount14
lyAdverbRatio0.00980392156862745
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences136
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences136
mean10.46
std8.08
cv0.772
sampleLengths
014
123
217
329
48
522
618
79
823
926
1017
117
126
136
143
153
165
178
186
1915
203
2125
2217
2311
2414
2510
2630
2713
289
2910
3011
3111
322
3321
346
356
3610
379
3816
397
408
415
4211
435
4416
4521
4615
4714
483
494
49.02% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats15
diversityRatio0.3602941176470588
totalSentences136
uniqueOpeners49
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount8
totalSentences118
matches
0"Somewhere nearby, the boundary between"
1"Just the wind—which didn't quite"
2"Just wildflowers and dark and"
3"Just a shadow, just a"
4"Too tall to be a"
5"Too purposeful to be anything"
6"Then came a sound that"
7"Fully corporeal, close enough to"
ratio0.068
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount32
totalSentences118
matches
0"She'd memorized the way here"
1"She'd come to the grove"
2"She stepped through the standing"
3"Her lungs seized."
4"She could see her breath"
5"Her ears popped as if"
6"She'd been in the grove"
7"It had a hollow quality,"
8"She moved deeper into the"
9"Her eyes strained in the"
10"Her voice sounded smaller than"
11"She cleared her throat, tried"
12"She spun around, but the"
13"Her hands were trembling."
14"She curled them into fists."
15"It was laughter—except it wasn't."
16"It had the shape and"
17"It sounded like wind over"
18"She forced her hands to"
19"It seemed to come from"
ratio0.271
78.64% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount90
totalSentences118
matches
0"Rory ducked beneath the oak's"
1"The boundary stones rose before"
2"She'd memorized the way here"
3"The usual dog walkers and"
4"The Heartstone pendant hung warm"
5"That was new—it had been"
6"She'd come to the grove"
7"Isolde's grove, Eva had called"
8"The pendant pulsed again, warmer"
9"Rory's jaw tightened."
10"A Hel portal."
11"That's what the heat meant."
12"She stepped through the standing"
13"The temperature dropped immediately, ten"
14"Her lungs seized."
15"She could see her breath"
16"The shift was so abrupt"
17"The grove spread before her,"
18"Wildflowers in impossible profusion—lupines and"
19"The grass was green and"
ratio0.763
42.37% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences118
matches
0"Now it pulsed with a"
ratio0.008
17.54% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences57
technicalSentenceCount10
matches
0"The boundary stones rose before her like crooked teeth, older than memory, their bark crusted with lichen that gleamed silver in the moonlight."
1"Not just any clearing—*that* clearing, the one with the perpetually blooming wildflowers that shouldn't exist in November, the one that existed in a fold betwee…"
2"The shift was so abrupt that her body protested, a primal resistance that made her teeth ache."
3"Wildflowers in impossible profusion—lupines and foxgloves and roses that should have withered weeks ago."
4"Above, the sky was a different quality of dark than the sky outside; the stars were dimmer, somehow farther away, as if she were viewing them through layers of …"
5"The place felt different in the dark, watchful in a way that made her aware of how utterly isolated she was."
6"In the silence that followed, Rory became aware of how her own breathing sounded—loud, rapid, the sound of prey animal prey."
7"The wind picked up, carrying that rotten-fruit stench, and the flowers began to sway in patterns that didn't match the direction of the wind."
8"She could see the outline of it—the too-long arms, the head that tilted at that impossible angle."
9"But the whispering intensified, becoming a chorus, becoming a sound that was almost like applause."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags3
uselessAdditionCount0
matches(empty)
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags1
fancyCount1
fancyTags
0"she whispered (whisper)"
dialogueSentences5
tagDensity0.2
leniency0.4
rawRatio1
effectiveRatio0.4
74.3412%