Run: 2026-06-01-01KT1H1FRVMCNSCB8N3K0FF79B

Run Details

Duration:
35.4s
Cost:
$0.053600
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
The taxi let her off at the gate to Richmond Park nearly an hour ago, and Rory had walked the rest of the way in on foot, because the message that brought her here had been very specific about that. Come alone. Come quiet. Come after the sun has gone. She didn't like any of those instructions. She liked even less that she'd followed them. The path she'd been told to find was not on any map of the park she'd ever seen, and she'd nearly given up twice before the trees thinned and the standing stones rose out of the dark to meet her—great slabs of ancient oak, grey and fissured, twisted into shapes that did not look like anything natural had made them. They marked a boundary. She understood that the way you understand a closed door in someone else's house: you do not cross without permission, and you do not assume the permission is kindly meant. She crossed anyway. The pendant at her throat gave a small pulse of warmth as she stepped between the stones, and then went cool again, as if it too had held its breath. Inside, it was summer. That was the first wrong thing, and it landed soft, the way the worst wrong things do. Behind her, beyond the stones, October had been doing its honest work—wet leaves, cold air with a knife in it, the smell of mud and rot. Here the air was warm and close and sweet. Wildflowers grew thick across the clearing, foxglove and cornflower and others she had no name for, their colors luminous even in the dark, as though they kept a little daylight stored inside them. Somewhere water ran. The grass was dry under her boots. "Hello?" Her voice came out smaller than she wanted. She cleared her throat and tried again. "I'm here. You wanted to meet. I came." Nothing answered. The flowers nodded, though there was no wind to move them. Rory stood at the edge of the clearing and made herself breathe slowly, the way Eva had taught her, in for four and out for four, the trick that was supposed to keep panic from taking the wheel. The benefactor—whoever had sent her the pendant, whoever had sent the note folded under her door this morning in handwriting she didn't recognize—was supposed to be here. That was the whole point. Answers. She was so tired of having none. She waited. The minutes stretched. She had the unpleasant sense, standing there, that the minutes were not the same length they were on the other side of the stones, that time in here was doing something she couldn't see, the way a card sharp does something with his hands while you watch his face. That was when she first heard the bell. It was a small sound, high and clear, a single bright note, and it came from somewhere off among the trees to her left. A child's bell, she thought, or the kind they tied to a cat's collar. It rang once and stopped. "Hello?" she said again. "Is someone there?" The bell rang once more, farther off. Then to her right, closer, the same single clear note—though nothing could have crossed the clearing in that time without her seeing it. She turned, and turned again, and the third time the bell rang it was behind her, near enough that she felt she ought to be able to reach back and touch the hand that held it. She didn't reach back. She stepped out into the open instead, away from the tree line, where she could at least see in every direction, and she put one hand to the pendant without quite meaning to. It was warm again. Not the brief warmth of crossing the stones. A steady, deepening heat, like a coal held in the palm. When she looked up, there was a woman standing across the clearing. Rory's heart slammed once and then went very quiet, the way it did in the bad moments, the cool-headed stillness that had carried her out of worse rooms than this. The woman had not been there a breath ago. She was tall and pale and dressed in something that moved like water, and she stood among the flowers without bending a single stem, and she was smiling. "You came," the woman said. Her voice was lovely. That was the worst of it. It was the loveliest voice Rory had ever heard, and every instinct she owned curled away from it. "We so hoped you would." "Are you the one who sent the note?" Rory asked. "I am the one who has been waiting." The woman tilted her head. The motion was a fraction too far, a degree past what a neck should allow, and then it corrected, so quickly Rory almost convinced herself she'd imagined it. "Such a long waiting. You have no idea, little delivery girl, how patient we have learned to be." We. There it was again. Rory's eyes moved without her permission to the tree line, and she saw—or thought she saw, at the very edge of seeing, where the eye fills in what isn't there—other shapes among the trunks. Tall and pale and still. A great many of them. When she looked directly, there was only forest. When she looked away, they crowded. "I don't think I'm who you're waiting for," Rory said carefully, and began, very slowly, to step backward toward the stones. "Oh, but the stone says otherwise." The woman's smile widened. It widened more than it should have. "Look how it loves you. Look how it wakes. It has not done that in such a long time. You wear it as though it were yours, Malphora. As though you had any right." The name went through Rory like cold water. She had never heard it before. She knew, with a certainty that had no source, that it was hers. The bell rang again—everywhere at once now, a ring of small bright notes circling the clearing—and the wildflowers, all of them, turned their faces toward her. Rory ran. She did not decide to. Her body decided. She bolted for the standing stones with the warm pendant burning against her breastbone and the sweet summer air thick in her lungs, and behind her she heard the loveliest voice in the world begin, gently, to laugh. The stones were not where she had left them.
created_at"2026-06-01T12:02:53.343Z" 6/1/2026, 12:02:53 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2589
moderation_latency188
generation_time35145
tokens_prompt812
tokens_completion1560
native_tokens_prompt1170
native_tokens_completion1910
native_tokens_completion_images(null)
native_tokens_reasoning48
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"
usage0.0536
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_015j7s4wb61UzZoPLMw1WFkb"
is_byokfalse
latency1036
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
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request_id"req-1780315373-FGjPpuZ5TXil8VFZpp2A"
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api_type"completions"
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upstream_id"msg_015j7s4wb61UzZoPLMw1WFkb"
total_cost0.0536
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provider_name"Anthropic"
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Evaluation details

Result Evaluator Details Meta Data
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags7
adverbTagCount2
adverbTags
0"she said again [again]"
1"Rory said carefully [carefully]"
dialogueSentences12
tagDensity0.583
leniency1
rawRatio0.286
effectiveRatio0.286
58.49% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1084
totalAiIsmAdverbs9
found
0
adverb"very"
count4
1
adverb"slowly"
count2
2
adverb"quickly"
count1
3
adverb"carefully"
count1
4
adverb"gently"
count1
highlights
0"very"
1"slowly"
2"quickly"
3"carefully"
4"gently"
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)
86.16% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1084
totalAiIsms3
found
0
word"pulse"
count1
1
word"warmth"
count2
highlights
0"pulse"
1"warmth"
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
narrationSentences73
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount0
narrationSentences73
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences78
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen61
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1075
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions6
unquotedAttributions0
matches(empty)
50.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions17
wordCount973
uniqueNames6
maxNameDensity1.03
worstName"Rory"
maxWindowNameDensity3.5
worstWindowName"Rory"
discoveredNames
Richmond1
Park1
Rory10
October1
Eva1
Come3
persons
0"Rory"
1"October"
2"Eva"
places
0"Richmond"
1"Park"
globalScore0.986
windowScore0.5
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences46
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1075
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences78
matches
0"understood that the"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs29
mean37.07
std27.12
cv0.732
sampleLengths
050
115
294
333
44
595
624
713
878
954
108
1143
127
1366
144
1556
1612
1767
1838
1910
2059
2163
2221
2351
2427
2526
262
2746
289
90.84% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences73
matches
0"been told"
1"was supposed"
2"was supposed"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs182
matches
0"was doing"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount9
semicolonCount0
flaggedSentences6
totalSentences78
ratio0.077
matches
0"The path she'd been told to find was not on any map of the park she'd ever seen, and she'd nearly given up twice before the trees thinned and the standing stones rose out of the dark to meet her—great slabs of ancient oak, grey and fissured, twisted into shapes that did not look like anything natural had made them."
1"Behind her, beyond the stones, October had been doing its honest work—wet leaves, cold air with a knife in it, the smell of mud and rot."
2"The benefactor—whoever had sent her the pendant, whoever had sent the note folded under her door this morning in handwriting she didn't recognize—was supposed to be here."
3"Then to her right, closer, the same single clear note—though nothing could have crossed the clearing in that time without her seeing it."
4"Rory's eyes moved without her permission to the tree line, and she saw—or thought she saw, at the very edge of seeing, where the eye fills in what isn't there—other shapes among the trunks."
5"The bell rang again—everywhere at once now, a ring of small bright notes circling the clearing—and the wildflowers, all of them, turned their faces toward her."
80.93% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount983
adjectiveStacks1
stackExamples
0"same single clear note—"
adverbCount54
adverbRatio0.054933875890132246
lyAdverbCount11
lyAdverbRatio0.011190233977619531
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences78
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences78
mean13.78
std12.87
cv0.934
sampleLengths
040
12
22
36
47
58
660
74
830
93
1030
114
1217
1326
149
1533
163
177
189
197
208
212
2211
2338
2427
255
261
277
282
293
3049
318
3224
3314
345
354
363
377
3823
3936
404
4133
424
438
4411
4512
4630
479
4828
495
52.56% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats9
diversityRatio0.38461538461538464
totalSentences78
uniqueOpeners30
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences65
matches
0"Somewhere water ran."
1"Then to her right, closer,"
ratio0.031
66.15% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount25
totalSentences65
matches
0"She didn't like any of"
1"She liked even less that"
2"They marked a boundary."
3"She understood that the way"
4"She crossed anyway."
5"Her voice came out smaller"
6"She cleared her throat and"
7"She was so tired of"
8"She had the unpleasant sense,"
9"It was a small sound,"
10"It rang once and stopped."
11"she said again"
12"She turned, and turned again,"
13"She didn't reach back."
14"She stepped out into the"
15"It was warm again."
16"She was tall and pale"
17"Her voice was lovely."
18"It was the loveliest voice"
19"It widened more than it"
ratio0.385
44.62% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount54
totalSentences65
matches
0"The taxi let her off"
1"She didn't like any of"
2"She liked even less that"
3"The path she'd been told"
4"They marked a boundary."
5"She understood that the way"
6"She crossed anyway."
7"The pendant at her throat"
8"That was the first wrong"
9"Here the air was warm"
10"Wildflowers grew thick across the"
11"The grass was dry under"
12"Her voice came out smaller"
13"She cleared her throat and"
14"The flowers nodded, though there"
15"Rory stood at the edge"
16"The benefactor—whoever had sent her"
17"That was the whole point."
18"She was so tired of"
19"The minutes stretched."
ratio0.831
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences65
matches(empty)
ratio0
32.97% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences26
technicalSentenceCount4
matches
0"The path she'd been told to find was not on any map of the park she'd ever seen, and she'd nearly given up twice before the trees thinned and the standing stone…"
1"Wildflowers grew thick across the clearing, foxglove and cornflower and others she had no name for, their colors luminous even in the dark, as though they kept …"
2"Rory's heart slammed once and then went very quiet, the way it did in the bad moments, the cool-headed stillness that had carried her out of worse rooms than th…"
3"She was tall and pale and dressed in something that moved like water, and she stood among the flowers without bending a single stem, and she was smiling."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags7
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags4
fancyCount0
fancyTags(empty)
dialogueSentences12
tagDensity0.333
leniency0.667
rawRatio0
effectiveRatio0
78.7575%