Run: 2026-09-29-01M3P2C5KS38AASWGHK62Y7YSS

Run Details

Duration:
32.3s
Cost:
$0.033084
Provider:
Claude Platform on AWS

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="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> Continue the story using the following instructions: <instructions> 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. </instructions>

Model response

AI
The note had been pushed under her door between the second and third lock, folded into quarters, the paper thick as a wedding invitation. *Richmond Park. The oaks that stand alone. Midnight. Bring the stone.* No name. Rory had read it four times over a cold carton of Yu-Fei's egg-fried rice, then pulled on her boots. Now she stood at the edge of the bracken with her bike leaning against a fence post a quarter mile back, the delivery bag still strapped across her chest. It smelled of ginger and soy. Something ordinary to hold on to. The park had no business being this quiet. London hummed even at midnight, a low engine note that lived under everything, and out here it had cut off, as if someone had closed a door on it. She pulled her phone from her pocket. 11:52. The screen lit her knuckles blue. "Right," she said. Her voice came out flat and small. "Let's see who's so shy." She walked. Frost silvered the grass, and each step broke it with a sound like biting into celery. Ahead, the ground rose toward a ring of oaks. She had seen them on the walk up, black against a sky the colour of a bruise, and counted seven. Now she counted them again as she closed the distance. Nine. She stopped and counted a third time, pointing a finger at each trunk. Seven. She let out a breath that smoked in front of her face. "Tired," she told the dark. "You're tired, Carter." The pendant lay against her breastbone, under her jumper, and it had gone warm. Not the warmth of skin. It pulsed, slow, like a thumb pressing and releasing on a bruise. She pulled the chain free and let the crimson stone rest in her palm. A faint light moved inside it, a coal in ash. She stepped between two of the standing oaks. The cold let go of her. It slid off her shoulders like a coat removed by careful hands, and the air turned soft and damp and green. Flowers ran across the clearing in a thick carpet, foxglove and cornflower and something white with a smell of honey and old pennies. In January. Their heads all tilted, as one, in her direction. "Okay," Rory whispered. "No. Okay." She checked her phone. 11:52. She watched the numbers for a full minute, thumb hovering. They did not change. The silence in the grove had a texture to it. Not the absence of sound but the held breath before it, a room where a conversation had stopped when she opened the door. She turned a slow circle. The oaks pressed close, their bark ridged and deep-cut, and where the moonlight touched them the grooves looked like mouths sewn shut with moss. "Hello?" Nothing answered. A moth crossed the clearing, and she followed it with her eyes until it vanished against the black. "I got your note. I brought the stone. Whoever you are, I'd like to get home before my landlord opens up and finds my bed empty." The wind moved through the grass, though the flowers stood still. She took a step toward the centre. Behind her, a second step landed. Rory froze. The sound had been soft, the crunch of a boot in frost, but there was no frost in the grove. There were only flowers, and flowers did not crunch. She waited. Her pulse pounded in the crescent scar on her left wrist, the old childhood mark she had never once felt, and now it itched like a nettle sting. She took another step. A beat later, the second step came again, a half-second behind. Same weight. Same stride length. "Very funny," she said, and her voice cracked on the last word. She cleared her throat. "Nice trick. Echo's brilliant." She lifted her left foot and did not put it down. The footstep did not come. She stood on one leg like a heron, arms out, and counted her heartbeats. Ten. Twenty. The flowers leaned closer. Somewhere, very far off, water dripped into water. She set her foot down. And the other foot, the one that wasn't hers, finished its step. The hair on her arms lifted under her sleeves. She did not turn. Every instinct she owned, the ones that had carried her out of Evan's flat with one bag and a bus ticket, told her the same thing: *do not show it your face yet.* "Right," she said, softer now. "I know you're there. I'm not daft. What do you want?" Something shifted at the edge of her vision. She kept her head still and rolled her eyes left. A pale smear hung between two trunks, tall and narrow, about the width of a doorframe. When she snapped her gaze to it, the smear became a birch sapling, thin and silver, one she would have sworn had not been there. She looked away. She looked back. The sapling had moved a foot closer to her. "Nope," she breathed. She backed up. The sapling stayed where it was, but the shadow beside it did not. The shadow drew itself along the ground toward her, patient, thin as spilled ink finding the low places in a floor. The pendant flared against her palm. She yelped and nearly dropped it. The stone burned bright now, red light leaking between her fingers and painting the flowers the colour of old blood. Where the glow touched the petals, they curled inward, and beneath them, in the soil, something pale flexed. Fingers. Or roots shaped like fingers. "Don't," she told them. Her voice shook. "Don't, all right? I'm just the delivery girl." A sound rose behind her. It began as a hum, a single held note that might have come from a wet finger circling a glass. Then it split into two notes, then three, and she understood, with a slow, cold drop in her stomach, that it was a voice. Many voices, all pitched beneath speech, all rehearsing a word they had not yet learned to say. The word, when it came, was her name. "*Rory.*" It came from her left. Then from her right. Then, warm and wet against the back of her neck, from directly behind. "*Laila.*" She had not told anyone that name in three years. She kept her eyes on the pulsing stone. The light inside it slowed, slowed, then held steady, a red eye staring back. She closed her fist around it until the silver chain bit her skin. "How do you know that?" she asked. The humming stopped mid-note. Every flower in the clearing turned its face away from her at once, and the grove exhaled, a long dry breath that rustled the oak leaves overhead. Then it went quiet again, and this time the quiet had weight. It pressed on her ears and on the backs of her knees. Directly behind her, close enough that she felt the air displace, something drew in a breath and did not let it out. Rory stood with the pendant burning in her fist and her shadow stretched long across the flowers, and beside it, joined at her heels, lay a second shadow with too many shoulders.
created_at"2026-09-29T07:51:54.239Z" 9/29/2026, 7:51:54 AM
model"anthropic/claude-sonnet-5.5-20260928"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3636
moderation_latency(null)
generation_time32328
tokens_prompt1008
tokens_completion2020
native_tokens_prompt1482
native_tokens_completion3012
native_tokens_completion_images(null)
native_tokens_reasoning782
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"
usage0.033084
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790668314-07wKDaE4Hmk9KbPmZClC"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790668314-jHvhBVlj5yWScsxrax9d"
upstream_id"msg_011CfXNFUVYvanoBjvsPhK4o"
provider_responses
0
endpoint_id"99aaad94-923b-4fc1-b763-271ed5486f7a"
id"msg_011CfXNFUVYvanoBjvsPhK4o"
is_byokfalse
latency647
model_permaslug"anthropic/claude-sonnet-5.5-20260928"
provider_name"Claude Platform on AWS"
status200
total_cost0.033084
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags8
adverbTagCount0
adverbTags(empty)
dialogueSentences18
tagDensity0.444
leniency0.889
rawRatio0
effectiveRatio0
91.69% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1204
totalAiIsmAdverbs2
found
0
adverb"very"
count2
highlights
0"very"
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)
66.78% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1204
totalAiIsms8
found
0
word"warmth"
count1
1
word"pulsed"
count1
2
word"silence"
count1
3
word"pulse"
count1
4
word"weight"
count2
5
word"echo"
count1
6
word"stomach"
count1
highlights
0"warmth"
1"pulsed"
2"silence"
3"pulse"
4"weight"
5"echo"
6"stomach"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"let out a breath"
count1
highlights
0"let out a breath"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences114
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences114
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences124
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen33
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans4
markdownWords20
totalWords1204
ratio0.017
matches
0"Richmond Park. The oaks that stand alone. Midnight. Bring the stone."
1"do not show it your face yet."
2"Rory."
3"Laila."
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions8
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions8
wordCount1129
uniqueNames5
maxNameDensity0.35
worstName"Rory"
maxWindowNameDensity1
worstWindowName"Rory"
discoveredNames
Park1
Yu-Fei1
January1
Evan1
Rory4
persons
0"Yu-Fei"
1"Evan"
2"Rory"
places
0"Park"
1"January"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences69
glossingSentenceCount1
matches
0"looked like mouths sewn shut with moss"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.831
wordCount1204
matches
0"Not the absence of sound but the held breath before it, a room"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences124
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs52
mean23.15
std18.55
cv0.801
sampleLengths
035
121
241
337
414
515
657
71
826
98
1055
118
1261
135
145
1514
1662
171
1820
1926
2011
2113
2231
2330
2420
2520
2611
275
2828
295
3012
3146
3216
3359
3415
353
3637
3750
386
3915
4066
418
421
4322
441
4510
4635
477
484
4951
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences114
matches
0"been pushed"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs186
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences124
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1134
adjectiveStacks0
stackExamples(empty)
adverbCount32
adverbRatio0.02821869488536155
lyAdverbCount4
lyAdverbRatio0.003527336860670194
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences124
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences124
mean9.71
std7.91
cv0.815
sampleLengths
024
12
25
31
43
52
619
729
86
96
108
1129
127
131
146
153
167
175
182
1916
209
2120
2210
231
2413
251
2612
275
283
2914
305
3112
3214
3310
348
356
3621
3723
382
399
403
412
424
431
4410
454
4610
4723
485
4924
63.93% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats7
diversityRatio0.4180327868852459
totalSentences122
uniqueOpeners51
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount6
totalSentences94
matches
0"Somewhere, very far off, water"
1"Then it split into two"
2"Then from her right."
3"Then, warm and wet against"
4"Then it went quiet again,"
5"Directly behind her, close enough"
ratio0.064
54.04% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount39
totalSentences94
matches
0"It smelled of ginger and"
1"She pulled her phone from"
2"Her voice came out flat"
3"She had seen them on"
4"She stopped and counted a"
5"She let out a breath"
6"she told the dark"
7"It pulsed, slow, like a"
8"She pulled the chain free"
9"She stepped between two of"
10"It slid off her shoulders"
11"Their heads all tilted, as"
12"She checked her phone."
13"She watched the numbers for"
14"They did not change."
15"She turned a slow circle."
16"She took a step toward"
17"Her pulse pounded in the"
18"She took another step."
19"she said, and her voice"
ratio0.415
66.38% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount74
totalSentences94
matches
0"The note had been pushed"
1"The oaks that stand alone."
2"Rory had read it four"
3"It smelled of ginger and"
4"Something ordinary to hold on"
5"The park had no business"
6"London hummed even at midnight,"
7"She pulled her phone from"
8"The screen lit her knuckles"
9"Her voice came out flat"
10"Frost silvered the grass, and"
11"She had seen them on"
12"She stopped and counted a"
13"She let out a breath"
14"she told the dark"
15"The pendant lay against her"
16"It pulsed, slow, like a"
17"She pulled the chain free"
18"A faint light moved inside"
19"She stepped between two of"
ratio0.787
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences94
matches
0"Now she stood at the"
1"Now she counted them again"
ratio0.021
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences47
technicalSentenceCount0
matches(empty)
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags8
uselessAdditionCount0
matches(empty)
38.89% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags8
fancyCount2
fancyTags
0"Rory whispered (whisper)"
1"she breathed (breathe)"
dialogueSentences18
tagDensity0.444
leniency0.889
rawRatio0.25
effectiveRatio0.222
92.7240%