Run: 2026-09-29-01M3P2CHMKVAETK4KA11DBK4PC

Run Details

Duration:
29.7s
Cost:
$0.031254
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 order slip had said *Richmond Park, Pen Ponds car park, 11:40 p.m.* Yu-Fei's handwriting, block capitals, the way she wrote when she was in a hurry. Rory killed the bike's engine and let the silence settle around her. She pulled out her phone. One bar, then none, then one. "Yu-Fei, it's me. I'm at the car park. There's nobody here." She turned a slow circle, the headlamp swinging its white beam across bracken and bare trees. "The customer's name is blank. Just a phone number, and it goes straight to a dead tone. Ring me back, yeah?" She hung up. The voicemail would reach Yu-Fei eventually, or it wouldn't. The slip had a second line, in smaller writing: *Follow the path to the stones. Customer will meet you.* Rory read it twice. Yu-Fei never sent her past a front door. She slung the insulated bag over her shoulder, took the torch from the pannier and walked. Gravel gave way to packed earth, and earth gave way to grass that hissed against her boots. Her breath smoked. Frost had silvered the ferns on either side of the path, and every blade cracked when she stepped near it. Except the ones ahead. Those stayed green. She stopped at the tree line. Beyond it, a low hill sloped toward a ring of grey-black oak trunks, each one taller than her and worn smooth as river stones. Wildflowers crowded the ground between them: foxglove, cornflower, poppies the colour of a fresh cut. In November. "Right," she said. Her voice sounded thin, as if the air had thinned it. "Nope. That's not a thing." The pendant against her breastbone had turned warm. She pressed two fingers to the silver chain and felt the stone pulse under her jacket, slow, like a second heartbeat set a little behind her own. She had felt that warmth twice before, and neither time had ended with her home for supper. She could go back. Chuck the bag in the bin, tell Yu-Fei the customer never showed. The bike was two hundred metres behind her. She could see the pale rectangle of the car park through the trees. She looked back. The trees had closed over it. The path she had walked, packed earth and frost, ran on behind her for about ten paces and then dissolved into ferns. "Fine." Her thumb found the crescent scar on her left wrist and rubbed it, an old habit. The scar was itching. It had not itched in fifteen years. "Fine. Deliver the food. Get the tip. Go home." She stepped through the ring. The cold stopped. It did not fade, it stopped, as though someone had shut a door on it. The air inside smelled of cut grass and hot copper. She lowered the torch. The beam looked weak here, a torch in a room already lit, though she could find no light source at all. The flowers glowed faintly at the edges, like the last coals of a fire. "Hello?" She held up the bag. "Golden Empress. Order for..." She checked the slip. The name line was still empty. "Order for someone. Hello?" Nothing answered. A breeze moved through the grove, and it carried a sound with it. A kettle. The rising whistle of a kettle coming to the boil, thin and domestic, somewhere behind the far stones. Rory's mouth went dry. She swung the torch toward the noise. Oak, shadow, poppies. The whistle climbed, held its note, and cut out mid-breath, the way a recording cuts when someone lifts the needle. "Okay," she whispered. "Okay, okay." She checked her phone. 11:41. She watched the numbers for a full minute, and they did not change. Something moved on her right. She spun, and it stopped. A stalk of foxglove was nodding, as if a hand had just brushed past it. Nothing stood near it. When she looked at the next stem, that one nodded too, and then the next, a slow ripple travelling around the ring behind her, staying just outside where the torch reached. She backed toward the centre of the circle and kept the beam on the ripple. Every flower it lit went still. Every flower behind her stirred. "You're the customer," she said, louder. The words came out flat and reasonable, a voice for a doorstep. "Right? That's you. I've got prawn crackers, I've got a chow mein that's going cold, and I'd like to go home. So come and take it." Behind her, in the space her voice had just left, something repeated it. *...take it.* Not an echo. An echo would have come back from the stones in her own pitch. This came from low down and close, a few words dragged out through a throat that did not know their weight. It mimicked her rhythm, the small lift on *take*, but it had no breath under it. Rory did not turn. Her hand had gone to the pendant, and the stone burned against her palm now, hot enough to leave a mark. "That's not funny," she said. *...funny.* Closer. She counted the stones because counting gave her something to do with her mind. Twelve. She had counted twelve from outside. Now she counted eleven, and again, and the gap sat on her left, a black slot between two trunks where a thirteenth might have stood. A thin grey shape leaned in the slot. It might have been a birch. It might have been the space where a birch would go. When she looked directly at it, she saw only bark and dark. When she looked away, it grew tall. She set the bag down. She did it slowly, one strap at a time, and kept her eyes on the gap. The foil lids rattled as the bag touched the grass. "I'm leaving this here," she said. "It's paid for. It's yours. I'm going." The whistle started again, and now it came from directly behind her, at the height of her ear. She smelled the copper, hot and sweet. She walked. She did not run, because her whole body understood that running was the thing it wanted. She walked toward the gap in the stones where the path should have been, and the grass slid past her boots, and the flowers turned on their stalks to follow her. Every bloom faced her. Every one had been facing her for a while. Five paces from the edge, her footsteps doubled. She stopped. The second set of steps stopped half a beat later. Her breath left her in a white plume. Behind her, at the base of her neck, another breath left too, and it was warm, and it was not smoking at all.
created_at"2026-09-29T07:52:06.554Z" 9/29/2026, 7:52:06 AM
model"anthropic/claude-sonnet-5.5-20260928"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3252
moderation_latency(null)
generation_time29648
tokens_prompt1008
tokens_completion1868
native_tokens_prompt1482
native_tokens_completion2829
native_tokens_completion_images(null)
native_tokens_reasoning734
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"
usage0.031254
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790668326-TaPdedQR2xkxCA9EAvdB"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790668326-dARae93T1Wec0fYzqMKq"
upstream_id"msg_011CfXNGPF4NFmd3dM5mQYV3"
provider_responses
0
endpoint_id"99aaad94-923b-4fc1-b763-271ed5486f7a"
id"msg_011CfXNGPF4NFmd3dM5mQYV3"
is_byokfalse
latency745
model_permaslug"anthropic/claude-sonnet-5.5-20260928"
provider_name"Claude Platform on AWS"
status200
total_cost0.031254
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
totalTags9
adverbTagCount0
adverbTags(empty)
dialogueSentences16
tagDensity0.563
leniency1
rawRatio0
effectiveRatio0
95.52% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1117
totalAiIsmAdverbs1
found
0
adverb"slowly"
count1
highlights
0"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)
68.67% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1117
totalAiIsms7
found
0
word"silence"
count1
1
word"pulse"
count1
2
word"warmth"
count1
3
word"echo"
count2
4
word"weight"
count1
5
word"footsteps"
count1
highlights
0"silence"
1"pulse"
2"warmth"
3"echo"
4"weight"
5"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
narrationSentences104
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences104
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences111
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen31
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans5
markdownWords22
totalWords1117
ratio0.02
matches
0"Richmond Park, Pen Ponds car park, 11:40 p.m."
1"Follow the path to the stones. Customer will meet you."
2"...take it."
3"take"
4"...funny."
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
totalMentions13
wordCount1014
uniqueNames7
maxNameDensity0.39
worstName"Yu-Fei"
maxWindowNameDensity1.5
worstWindowName"Yu-Fei"
discoveredNames
Park1
Pen1
Ponds1
Yu-Fei4
Rory4
November1
Closer1
persons
0"Yu-Fei"
1"Rory"
places
0"Park"
1"November"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences63
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1117
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount2
totalSentences111
matches
0"felt that warmth"
1"understood that running"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs42
mean26.6
std20.54
cv0.772
sampleLengths
039
111
248
312
419
512
656
77
847
919
108
1144
1237
1331
1437
155
1667
1724
1815
1920
2034
215
2218
235
2455
2526
2644
2713
282
2953
3025
315
321
331
3490
3531
3613
3725
3862
398
4012
4131
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences104
matches(empty)
80.24% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs167
matches
0"was itching"
1"was nodding"
2"was not smoking"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences111
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1020
adjectiveStacks0
stackExamples(empty)
adverbCount26
adverbRatio0.025490196078431372
lyAdverbCount6
lyAdverbRatio0.0058823529411764705
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences111
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences111
mean10.06
std7.44
cv0.739
sampleLengths
027
112
25
36
427
521
63
79
815
94
104
118
1216
1317
143
1520
164
173
186
1924
2015
212
223
2311
245
258
2627
2717
284
2912
308
3113
323
336
3422
3517
364
377
389
395
403
4115
4210
434
4421
4514
466
478
486
494
48.18% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats17
diversityRatio0.38181818181818183
totalSentences110
uniqueOpeners42
0.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount0
totalSentences90
matches(empty)
ratio0
55.56% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount37
totalSentences90
matches
0"She pulled out her phone."
1"She turned a slow circle,"
2"She hung up."
3"She slung the insulated bag"
4"Her breath smoked."
5"She stopped at the tree"
6"Her voice sounded thin, as"
7"She pressed two fingers to"
8"She had felt that warmth"
9"She could go back."
10"She could see the pale"
11"She looked back."
12"Her thumb found the crescent"
13"It had not itched in"
14"She stepped through the ring."
15"It did not fade, it"
16"She lowered the torch."
17"She held up the bag"
18"She checked the slip"
19"She swung the torch toward"
ratio0.411
26.67% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount78
totalSentences90
matches
0"The order slip had said"
1"Rory killed the bike's engine"
2"She pulled out her phone."
3"She turned a slow circle,"
4"She hung up."
5"The voicemail would reach Yu-Fei"
6"The slip had a second"
7"Customer will meet you.*"
8"Rory read it twice."
9"Yu-Fei never sent her past"
10"She slung the insulated bag"
11"Gravel gave way to packed"
12"Her breath smoked."
13"Frost had silvered the ferns"
14"Those stayed green."
15"She stopped at the tree"
16"Wildflowers crowded the ground between"
17"Her voice sounded thin, as"
18"The pendant against her breastbone"
19"She pressed two fingers to"
ratio0.867
55.56% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences90
matches
0"Now she counted eleven, and"
ratio0.011
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences43
technicalSentenceCount0
matches(empty)
69.44% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags9
uselessAdditionCount1
matches
0"she said, louder"
87.50% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags5
fancyCount1
fancyTags
0"she whispered (whisper)"
dialogueSentences16
tagDensity0.313
leniency0.625
rawRatio0.2
effectiveRatio0.125
86.2444%