Run: 2026-10-08-01M4DA3DVPDRMHQDWRRSZG79JH

Run Details

Duration:
15.0s
Cost:
$0.001201
Provider:
Claude Platform on AWS

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 gate Rory had climbed over at a quarter to midnight was still behind her, but the Richmond ground had stopped feeling like London the moment she stepped through the ring of oaks. The city's hum had gone. No traffic, no distant sirens, no planes sliding down toward Heathrow. Only the wind moving through the bracken, and her own breath. She stopped at the first standing stone and rested her palm on it. The bark had been weathered into something close to bone, but it was warm, the way a sleeping animal is warm. She took her hand back and wiped it on her coat. *Come alone. Come before the turn of the night.* The message had arrived on a card with no stamp, tucked under the door of the flat above Silas' bar, the handwriting neat and slanted and utterly unfamiliar. She had told herself it was a prank. Then she had lifted the Heartstone from her drawer, the silver chain cool against her fingers, and she had known it wasn't. The pendant sat against her sternum now, under her jumper. She could feel it through the wool, a faint, steady warmth that had nothing to do with the coat or the walk. The clearing opened ahead of her like a held breath. Wildflowers covered the ground in drifts: bluebells, foxgloves, pale yellow primroses, and something with petals the colour of old wine that she didn't recognise. It was February. There should have been frost on every blade of grass. Instead the air smelled of honey and crushed stems, sweet enough to coat the back of her throat. She took out her phone. Ten past midnight, the screen said, and then, as she watched, the numbers blurred and rearranged themselves into *11:52*, and then nothing at all, a black square with no signal bars. *Fine*, she thought. *Fine. Just find the stone, see who's waiting, leave.* The grove was larger than it had any right to be. She had walked perhaps twenty paces past the oaks, and the trees behind her had thinned to silhouettes. Ahead, the ground rose toward a circle of taller stones, and in the middle of the circle something pale was standing very still. She stopped. It was a deer, she decided. A roe, maybe, a young one, its head lowered as it grazed. Rory let out a breath and walked forward, slow, measured, keeping her steps light on the flowers. The deer lifted its head. It had no face. Where its eyes should have been, the skin simply continued, smooth and grey, stretched over bone that was too long and too finely shaped. It watched her without moving. Then it turned, unhurried, and walked into the trees on legs that didn't bend quite the way legs should. Rory realised she had stopped breathing. She started again, shallow and careful. Somewhere to her left, a bell rang. Once, low and clear, the sort of sound a hand-bell makes in a country church. The echo rolled through the grove and did not fade so much as sink into the ground. She turned slowly. Nothing. Only oaks, and the bracken, and the flowers swaying in a wind she couldn't feel on her face. Then, at the very edge of her vision, something moved between two trunks. Pale. Tall. There and gone before she could fix on it, the way a shape vanishes when you look straight at it in a dark room. She did not look straight at it. She kept her eyes on the middle distance, the way her mother had taught her to watch a dog that wasn't sure of you. *Don't give it the satisfaction.* The pendant pulsed against her chest. A warmth, then a second warmth, quicker, as if something had knocked on a door inside it. Hel, she thought suddenly. The word surfaced from somewhere she hadn't been looking. A portal. The Heartstone warmed near them. Somebody had written that down in one of the old books she'd skimmed in the library and dismissed. She had brought a thing that answered to something under the grass, and now it was telling her it was close. She started to walk back toward the oaks. Her steps sounded wrong. Too loud on the damp ground, and then, a half-beat late, a second set of footfalls answered them. Not an echo. An echo would have come from the trees. This came from behind her left shoulder, almost at her heel, matching her rhythm exactly. Rory stopped. The second set stopped with her. She did not turn around. "Hello?" Her voice came out thin. It did not carry. The grove swallowed it whole. From somewhere close, a woman said, very softly, "Laila." Nobody had called her that since Eva. Nobody who knew it had any reason to be out here. And the voice was not a stranger's. It was almost hers, the vowels worn at the edges the way she'd sound after a week without sleep. Her left wrist burned, the old crescent scar pulling tight as though something was tracing it with a fingernail. "Who's there?" she said. The answer came, patient and close, from a point just beyond her shoulder, where no one with a face could possibly be standing. "You are," it said. "You came back." Rory's hand closed around the pendant, and it was hot now, almost painful, and the grass at her feet was beginning, very slowly, to bend away from her, as if something beneath it had started to turn over in its sleep.
created_at"2026-10-08T08:29:28.319Z" 10/8/2026, 8:29:28 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3467
moderation_latency(null)
generation_time15007
tokens_prompt792
tokens_completion1290
native_tokens_prompt1172
native_tokens_completion2168
native_tokens_completion_images(null)
native_tokens_reasoning454
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"
usage0.0012012
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791448168-JuuzEP5x3eVSKPH8VLt1"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791448168-PugBenD8fk6yZIktrUQg"
upstream_id"msg_011CfpTPshvPQPFN5vj9spJ5"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfpTPshvPQPFN5vj9spJ5"
is_byokfalse
latency741
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0012012
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
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags5
adverbTagCount1
adverbTags
0"a woman said very [very]"
dialogueSentences5
tagDensity1
leniency1
rawRatio0.2
effectiveRatio0.2
51.30% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount924
totalAiIsmAdverbs9
found
0
adverb"utterly"
count1
1
adverb"very"
count4
2
adverb"slowly"
count2
3
adverb"suddenly"
count1
4
adverb"softly"
count1
highlights
0"utterly"
1"very"
2"slowly"
3"suddenly"
4"softly"
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)
45.89% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount924
totalAiIsms10
found
0
word"could feel"
count1
1
word"warmth"
count3
2
word"measured"
count1
3
word"echo"
count3
4
word"pulsed"
count1
5
word"tracing"
count1
highlights
0"could feel"
1"warmth"
2"measured"
3"echo"
4"pulsed"
5"tracing"
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
narrationSentences80
matches(empty)
71.43% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount2
hedgeCount2
narrationSentences80
filterMatches
0"see"
1"look"
hedgeMatches
0"started to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences81
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen41
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans5
markdownWords25
totalWords924
ratio0.027
matches
0"Come alone. Come before the turn of the night."
1"11:52"
2"Fine"
3"Fine. Just find the stone, see who's waiting, leave."
4"Don't give it the satisfaction."
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions2
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions12
wordCount905
uniqueNames7
maxNameDensity0.55
worstName"Rory"
maxWindowNameDensity1
worstWindowName"Rory"
discoveredNames
Rory5
Richmond1
London1
Heathrow1
Heartstone2
February1
Eva1
persons
0"Rory"
1"Heartstone"
2"Eva"
places
0"Richmond"
1"London"
2"Heathrow"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences53
glossingSentenceCount1
matches
0"something close to bone, but it was warm, the wa"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount924
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences81
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs30
mean30.8
std20.07
cv0.652
sampleLengths
060
145
267
332
465
536
612
752
82
935
105
1152
1212
1339
1422
1539
1636
1723
1859
1956
208
215
2215
239
2444
2519
264
2723
287
2941
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences80
matches
0"been weathered"
33.33% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs160
matches
0"was standing"
1"was telling"
2"was tracing"
3"was beginning"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences81
ratio0
matches(empty)
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount133
adjectiveStacks0
stackExamples(empty)
adverbCount4
adverbRatio0.03007518796992481
lyAdverbCount1
lyAdverbRatio0.007518796992481203
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences81
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences81
mean11.41
std8.77
cv0.769
sampleLengths
033
15
211
311
413
521
611
72
835
98
1022
1110
1222
1310
1424
153
1610
1718
185
1931
203
211
228
2311
2418
2523
262
276
2812
2917
305
314
3224
335
3419
356
366
377
3815
3917
403
411
4218
4313
441
451
4624
477
4824
495
65.43% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats7
diversityRatio0.4444444444444444
totalSentences81
uniqueOpeners36
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount10
totalSentences70
matches
0"Only the wind moving through"
1"Then she had lifted the"
2"Instead the air smelled of"
3"Just find the stone, see"
4"Then it turned, unhurried, and"
5"Somewhere to her left, a"
6"Once, low and clear, the"
7"Only oaks, and the bracken,"
8"Then, at the very edge"
9"Too loud on the damp"
ratio0.143
94.29% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount22
totalSentences70
matches
0"She stopped at the first"
1"She took her hand back"
2"She had told herself it"
3"She could feel it through"
4"It was February."
5"She took out her phone."
6"She had walked perhaps twenty"
7"It was a deer, she"
8"It had no face."
9"It watched her without moving."
10"She started again, shallow and"
11"She turned slowly."
12"She did not look straight"
13"She kept her eyes on"
14"She had brought a thing"
15"She started to walk back"
16"Her steps sounded wrong."
17"She did not turn around."
18"Her voice came out thin"
19"It did not carry."
ratio0.314
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount50
totalSentences70
matches
0"The gate Rory had climbed"
1"The city's hum had gone."
2"She stopped at the first"
3"The bark had been weathered"
4"She took her hand back"
5"She had told herself it"
6"The pendant sat against her"
7"She could feel it through"
8"The clearing opened ahead of"
9"Wildflowers covered the ground in"
10"It was February."
11"There should have been frost"
12"She took out her phone."
13"The grove was larger than"
14"She had walked perhaps twenty"
15"It was a deer, she"
16"A roe, maybe, a young"
17"Rory let out a breath"
18"The deer lifted its head."
19"It had no face."
ratio0.714
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences70
matches(empty)
ratio0
46.33% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences37
technicalSentenceCount5
matches
0"Where its eyes should have been, the skin simply continued, smooth and grey, stretched over bone that was too long and too finely shaped."
1"She kept her eyes on the middle distance, the way her mother had taught her to watch a dog that wasn't sure of you."
2"She had brought a thing that answered to something under the grass, and now it was telling her it was close."
3"Her left wrist burned, the old crescent scar pulling tight as though something was tracing it with a fingernail."
4"Rory's hand closed around the pendant, and it was hot now, almost painful, and the grass at her feet was beginning, very slowly, to bend away from her, as if so…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags5
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags3
fancyCount0
fancyTags(empty)
dialogueSentences5
tagDensity0.6
leniency1
rawRatio0
effectiveRatio0
83.5999%