Run: 2026-09-23-01M37PHF4WMF5FZV9SM38Z5WZR

Run Details

Duration:
42.4s
Cost:
$0.068188
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 hawthorn sprig had been waiting on the seat of her delivery bike, bound with red thread. No note. Isolde never bothered with notes. Rory left the bike chained to the railings at Roehampton Gate and walked the rest. Richmond Park after dark belonged to the deer and the wind. The city glowed orange behind her, a bruise on the underside of the clouds, and the further she went, the thinner that glow became, until the only light came from the torch on her phone and the faint ember at her throat. The Heartstone had been cold all week. Now it sat warm against her collarbone, like a coin held too long in a fist. She found the oaks where she'd left them last time: nine standing stones of wood gone hard as granite, their bark worn smooth by centuries of hands. Beyond them, the Grove. She stepped between the two tallest and felt the familiar pressure in her ears, the half-second where the world forgot to breathe. Then she was through. Wildflowers carpeted the clearing, same as always. Foxglove, cornflower, meadowsweet, things that had no business blooming in November. But every one of them had closed. Petals folded tight, heads bowed toward the soil, a whole field of flowers turned away from her. "Isolde?" Her voice went nowhere. No echo. The trees swallowed it. Rory lowered the torch and let her eyes adjust. Moonlight silvered the clearing, though she couldn't see the moon itself. The canopy above was a black lattice with nothing behind it. No stars. No cloud. A painted ceiling. She checked her phone. 23:52. Signal: one bar, flickering. "I got your hawthorn. You've got my attention. Come out, then." Nothing came out. Somewhere past the oaks, a deer barked, that raw, coughing shriek that always sounded like a woman being strangled. Rory had heard it a dozen times on late deliveries through the park. It still raised the hair on her arms. She waited for the answering call. It came from inside the Grove. She turned. The clearing sat empty. Flowers, grass, the dark mouths between the trees. Nothing with hooves. Nothing with antlers. The bark faded before she could fix where it had come from, and the silence that followed pressed on her like deep water. The pendant grew warmer. Right. Hel portal. Somewhere close. That had to be why Isolde wanted her here. Rory walked the edge of the clearing, keeping the oaks at her shoulder, sweeping the torch low across the ground. Her trainers crunched on dead leaves. Crunch. Crunch. Crunch. She stopped. The last one had come a beat late. Rory stood with one foot raised and listened. Her own breath. The creak of a branch. She lowered her foot, slow, onto a drift of leaves. Crunch. Then, a heartbeat after, from somewhere behind her left shoulder: crunch. She didn't turn around. Her whole spine wanted her to, and she didn't. She stared at the torch beam trembling on the grass and made herself count. One, two, three. She took another step. Crunch. Crunch. The second footfall landed closer. "Not funny." Her voice came out thinner than she'd meant it to. "Isolde, if this is one of your games, I'm going home." She spun and swept the torch across the clearing. The beam caught grass, flowers, the grey trunks of the oaks. Nothing stood behind her. Nothing had ever stood behind her. She counted the oaks. Nine. She counted them again, because her hands were shaking and she'd rushed it. Ten. Rory swallowed. She walked the torch from trunk to trunk, touching each one with light. Tallest, then the split one, then the one with the burl like a clenched knuckle. Seven, eight, nine. And there, between the ninth and the first, where she was certain there had been nothing but a gap and a view of open parkland, stood a tenth. It was narrower than the others. Paler. The bark had a wet sheen to it, and it leaned, not with the wind but toward her, the way a person leans in to hear a secret. At the edge of her vision, something shifted in the grass. She snapped the torch toward it. The flowers there had turned. A single ring of them, heads lifted, faces open, all pointed at her. The rest of the field stayed shut. Her phone buzzed against her palm and she nearly dropped it. EVA calling. Rory jabbed at the screen. "Eva? Eva, can you hear me?" "Rory?" The line crackled, stretched. "Where are you? It's been ages. You said you'd text when you got there." "I've been gone twenty minutes." "You've been gone since Tuesday." The words landed in her chest and sat there, heavy and cold. Rory looked at the clock on the screen. 23:52. It hadn't moved. "Eva, listen to me. I need you to stay on the line. Don't hang up. Just keep talking." "Okay. Okay, I'm here. What's happening? You sound strange." "The Grove's wrong. Isolde isn't here. Something else is." "Get out, then. Rory, just walk out." "I'm trying to work out which way is out." She turned in a slow circle. Ten oaks. They all looked the same now. The pale one had gone, or had changed its bark to match. "Keep talking. Tell me about your day. Tell me anything." "I— Silas has been asking about you. He kept your post. There's a parcel from your mum, I think. Welsh stamps." Rory walked toward the tallest oak. The ring of open flowers turned to follow her, a soft rustle like pages. "Rory?" The voice didn't come from the phone. It came from between the trees, off to her right. Eva's voice. Eva's exact voice, down to the London flatness she'd picked up over the years and the Cardiff lilt that still slipped into her vowels. "Rory, love, come here. I found the way out." The phone in her hand stayed silent. Then, tinny and far away: "Rory? Who was that? Is someone with you?" Rory pressed the phone hard against her ear. "You're at home." "I'm in your flat. I've been feeding your plants. Rory, who's there?" "Rory," said the trees. "It's cold. Come and get me. Please." The Heartstone burned now. Not warm. Hot, a brand against her skin, and its glow had brightened enough to paint the underside of her jaw red. She could see it at the bottom of her vision, pulsing, quicker than her own heartbeat. Quicker, and quickening. She didn't move toward the voice. She didn't move away from it. She held very still and let her eyes drift to the edges of the clearing without turning her head, the way you'd watch a wasp that had landed on your sleeve. Between two oaks, low to the ground, something pale unfolded. Too long to be an arm. Too many joints to be a branch. It stretched along the grass, patient, careful not to disturb a single petal, and where it passed, the flowers opened one by one and turned their faces toward her. "Rory," Eva whispered in her ear. "Rory, talk to me. Why've you gone quiet?" "Because it's listening." The pale thing stopped. Everything stopped. The rustle of the flowers. The creak of the branches. The crackle on the phone line. Rory's own breath hitched and died in her throat, and in the perfect silence that followed, she heard it. Breathing. Slow, and wet, and very close. Matched to hers, inhale for inhale, the way the footsteps had been matched. Only it didn't come from the trees any more. It came from just behind her right ear.
created_at"2026-09-23T17:55:42.893Z" 9/23/2026, 5:55:42 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4716
moderation_latency(null)
generation_time42357
tokens_prompt1008
tokens_completion2127
native_tokens_prompt1482
native_tokens_completion3113
native_tokens_completion_images(null)
native_tokens_reasoning547
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"
usage0.068188
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790186142-YgdA6fD7PNRjsUz3AfNE"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790186142-9uABmUUKs61ssVEFweEn"
upstream_id"msg_011CfLoSYoRwpFWhWx7arin3"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLoSYoRwpFWhWx7arin3"
is_byokfalse
latency1178
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.068188
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
totalTags4
adverbTagCount0
adverbTags(empty)
dialogueSentences26
tagDensity0.154
leniency0.308
rawRatio0
effectiveRatio0
92.16% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1275
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)
68.63% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1275
totalAiIsms8
found
0
word"familiar"
count1
1
word"echo"
count1
2
word"silence"
count2
3
word"footfall"
count1
4
word"lilt"
count1
5
word"perfect"
count1
6
word"footsteps"
count1
highlights
0"familiar"
1"echo"
2"silence"
3"footfall"
4"lilt"
5"perfect"
6"footsteps"
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
narrationSentences134
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences134
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences154
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen42
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1275
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions6
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions34
wordCount1083
uniqueNames13
maxNameDensity1.02
worstName"Rory"
maxWindowNameDensity3
worstWindowName"Crunch"
discoveredNames
Roehampton1
Gate1
Park1
Heartstone2
Grove2
November1
Isolde2
Ten2
London1
Cardiff1
Rory11
Crunch6
Eva3
persons
0"Heartstone"
1"Isolde"
2"Rory"
3"Eva"
places
0"Roehampton"
1"Park"
2"Grove"
3"November"
4"London"
5"Cardiff"
globalScore0.992
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences73
glossingSentenceCount1
matches
0"sounded like a woman being strangled"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.784
wordCount1275
matches
0"not with the wind but toward her, the way a person leans in to hear a secret"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences154
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs68
mean18.75
std16.88
cv0.9
sampleLengths
024
168
223
353
44
542
61
710
838
99
1011
113
1246
136
1443
154
1640
172
181
1910
2026
211
2211
2334
241
251
265
2723
2830
294
301
3113
321
3361
3435
3535
367
3718
386
3919
405
415
4224
4318
449
459
467
4745
4821
4920
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences134
matches
0"being strangled"
1"been matched"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs177
matches
0"were shaking"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences154
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1084
adjectiveStacks0
stackExamples(empty)
adverbCount31
adverbRatio0.02859778597785978
lyAdverbCount3
lyAdverbRatio0.0027675276752767526
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences154
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences154
mean8.28
std7
cv0.845
sampleLengths
017
12
25
315
411
542
67
716
827
94
1022
114
127
1311
147
1517
161
174
182
194
209
2111
2211
232
242
253
264
271
284
2911
303
3119
3213
338
346
356
362
374
388
393
403
4123
424
431
442
452
469
4720
486
491
47.15% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats15
diversityRatio0.34210526315789475
totalSentences152
uniqueOpeners52
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount7
totalSentences107
matches
0"Then she was through."
1"Somewhere past the oaks, a"
2"Then, a heartbeat after, from"
3"Then, tinny and far away:"
4"Too long to be an"
5"Too many joints to be"
6"Only it didn't come from"
ratio0.065
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount32
totalSentences107
matches
0"She found the oaks where"
1"She stepped between the two"
2"Her voice went nowhere."
3"She checked her phone."
4"It still raised the hair"
5"She waited for the answering"
6"It came from inside the"
7"Her trainers crunched on dead"
8"Her own breath."
9"She lowered her foot, slow,"
10"She didn't turn around."
11"Her whole spine wanted her"
12"She stared at the torch"
13"She took another step."
14"Her voice came out thinner"
15"She spun and swept the"
16"She counted the oaks."
17"She counted them again, because"
18"She walked the torch from"
19"It was narrower than the"
ratio0.299
67.48% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount84
totalSentences107
matches
0"The hawthorn sprig had been"
1"Isolde never bothered with notes."
2"Rory left the bike chained"
3"Richmond Park after dark belonged"
4"The city glowed orange behind"
5"The Heartstone had been cold"
6"She found the oaks where"
7"She stepped between the two"
8"Wildflowers carpeted the clearing, same"
9"Foxglove, cornflower, meadowsweet, things that"
10"Petals folded tight, heads bowed"
11"Her voice went nowhere."
12"The trees swallowed it."
13"Rory lowered the torch and"
14"Moonlight silvered the clearing, though"
15"The canopy above was a"
16"A painted ceiling."
17"She checked her phone."
18"Nothing came out."
19"Rory had heard it a"
ratio0.785
46.73% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences107
matches
0"Now it sat warm against"
ratio0.009
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences40
technicalSentenceCount2
matches
0"Foxglove, cornflower, meadowsweet, things that had no business blooming in November."
1"Rory walked the edge of the clearing, keeping the oaks at her shoulder, sweeping the torch low across the ground."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags4
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags1
fancyCount1
fancyTags
0"Eva whispered (whisper)"
dialogueSentences26
tagDensity0.038
leniency0.077
rawRatio1
effectiveRatio0.077
92.9602%