Run: 2026-10-08-01M4DAJHZVYAFW6XPXZ68WJCHZ

Run Details

Duration:
17.0s
Cost:
$0.001335
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 at the Robin Hood Gate was locked by the time Rory reached it, so she went over the low railing where the hedge had worn thin. Her trainers hit wet grass on the far side. Behind her, the lamps along the road made orange halos in the mist, and then the trees swallowed them. She had told herself she would not come back here. Two years ago she had walked out of this same clearing with her heart hammering and her hands full of wildflowers she could not explain, and she had sworn to Eva that she was finished with it. But the pendant had been warm against her sternum all evening, a faint, patient heat like a hand resting on her breastbone, and when she checked the time on her phone at the Golden Empress, between a rice order and a delivery to Kingston, the warmth had surged. Just once. A pulse, like a heartbeat under a bandage. The phone said 9:47. She put it in her coat pocket and kept walking. Richmond Park at night was a different country. The deer were somewhere out in the dark, she could hear them shifting and coughing, but she could not see them. Her torch made a narrow white tunnel through the bracken, and everything beyond the tunnel had the texture of wet slate. She followed the path she had memorised without meaning to, past the old oak with the split trunk, left at the fallen beech, straight on where the ground dipped toward the water. The standing stones came up out of the mist all at once. Six of them, or seven if she counted the leaning one that had once been a bough. They were not stone at all, she knew that now. They were oak, grown into pillars so old the bark had gone silver and split like paper, and they stood in a ring with the gaps between them black as doorways. She stopped at the edge of the ring and turned off the torch. For a moment there was only the sound of her breathing and the faint drip of condensation from the branches. Then the light came up from the ground. It was not bright. It was the colour of a candle seen through a hand. It came from the clearing's centre, where the wildflowers grew in a dense, impossible carpet: foxgloves, primroses, bluebells, a last stubborn drift of white campion, all blooming together in the middle of November. She could smell them now, sweet and heavy, almost rotten. The pendant was hot. Not warm. Hot, pressing through her shirt, and when she closed her fingers around it through the fabric it pulsed once, hard, and the chain bit into the back of her neck. *Hel*, she thought, and did not know where the word came from. *There's a door here.* She stepped through the gap between two stones. The air changed. It was like walking into a room where someone had just stopped speaking. Her ears popped. The mist thinned around her feet and pooled instead, low and white, and in the pool she could see her own shadow, thrown forward by the glow from the flowers, stretching long and thin across the grass. She checked her phone. The screen was dark. She pressed the side button. Nothing. She tried again, and this time the screen lit with a time she did not expect: 9:47. Still. Exactly still, the numbers unchanged as she watched them, and she realised she had not heard the traffic from the road for a long while, or the deer, or her own footsteps on the grass. She put the phone away very carefully, the way she would put down something that might be hot. Something moved at the edge of her vision. She did not turn her head. She had learned that much two years ago. She let her eyes slide sideways instead, past the nearest stone, into the trees beyond. There was a pale shape between two trunks, upright, about the height of a person. When she looked directly at it, it was only bark and shadow. When she looked away, it was there again, a little closer, the way a face in a dark window is there when you stop trying to see it. A sound came from behind her. Soft, rhythmic. Twig, then leaf, then the faint give of soft ground. Footsteps. Someone walking slowly across the clearing, matching her own careful pace. She stopped. The footsteps stopped. She waited. Her heart went on hammering. The pendant pulsed, and pulsed again, faster now, the rhythm uneven, like something trying to get her attention. "Hello?" Her voice came out thin and flat, swallowed almost at once by the mist. Nothing answered. But somewhere to her left, very softly, someone hummed. It was a tune she almost knew, a lullaby her mother used to sing in Welsh, the melody warped and slowed until it sounded like a memory being played back underwater. Rory pressed her left wrist against her side, over the small crescent scar she had carried since she was seven. The skin there was cold. She made herself breathe in through her nose, the way she did in court-room-style arguments with Eva when she needed to think, and she made herself count. One. Two. Three. On four, the humming stopped. In the silence, the footsteps started again behind her. Closer this time. Not matching her pace anymore. Simply coming, unhurried, across the wildflowers, and each step pressed the blossoms flat with a small, wet sound that she could feel in her teeth. She did not run. Running was what the thing wanted, she was sure of it, the same way she was sure the gap between the stones was the only way out and that the gap was now a little narrower than it had been. She turned around. The clearing was empty. The flowers were still. The mist lay quiet over the grass, and beyond the ring the trees stood like patient people waiting for a bus. But the grass where the footsteps had been was bent in a single long line, leading straight to her feet, and the pendant at her throat burned so hot she could feel the silver chain beginning to blister her skin. Somewhere far off, a deer called out. Then, very close, at the height of her own ear, a voice she had not heard in two years said her name, gently, the way you would call someone in from the garden. "Rory." She did not answer. She reached for her phone with a shaking hand, and the screen was still showing 9:47.
created_at"2026-10-08T08:37:44.067Z" 10/8/2026, 8:37:44 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency16975
moderation_latency(null)
generation_time16975
tokens_prompt792
tokens_completion1530
native_tokens_prompt1172
native_tokens_completion2435
native_tokens_completion_images(null)
native_tokens_reasoning497
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"
usage0.0013347
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791448664-cVAyLwiTGb647BHnG2pn"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791448664-cLi79ajmc0t8tgwbw8J6"
upstream_id"msg_011CfpU2RKhmqacZkWts3pky"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfpU2RKhmqacZkWts3pky"
is_byokfalse
latency783
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0013347
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
totalTags1
adverbTagCount0
adverbTags(empty)
dialogueSentences2
tagDensity0.5
leniency1
rawRatio0
effectiveRatio0
68.61% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1115
totalAiIsmAdverbs7
found
0
adverb"very"
count3
1
adverb"carefully"
count1
2
adverb"slowly"
count1
3
adverb"softly"
count1
4
adverb"gently"
count1
highlights
0"very"
1"carefully"
2"slowly"
3"softly"
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)
37.22% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1115
totalAiIsms14
found
0
word"warmth"
count1
1
word"pulse"
count1
2
word"pulsed"
count3
3
word"footsteps"
count5
4
word"rhythmic"
count1
5
word"silence"
count1
6
word"could feel"
count2
highlights
0"warmth"
1"pulse"
2"pulsed"
3"footsteps"
4"rhythmic"
5"silence"
6"could feel"
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
narrationSentences86
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences86
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences87
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen48
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans2
markdownWords5
totalWords1115
ratio0.004
matches
0"Hel"
1"There's a door here."
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions0
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions13
wordCount1113
uniqueNames11
maxNameDensity0.18
worstName"Rory"
maxWindowNameDensity0.5
worstWindowName"Rory"
discoveredNames
Robin1
Hood1
Gate1
Rory2
Eva2
Golden1
Empress1
Kingston1
Park1
November1
Welsh1
persons
0"Robin"
1"Hood"
2"Gate"
3"Rory"
4"Eva"
places
0"Golden"
1"Kingston"
2"Park"
3"Welsh"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences54
glossingSentenceCount1
matches
0"sounded like a memory being played back un"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1115
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences87
matches
0"learned that much"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs31
mean35.97
std27.61
cv0.768
sampleLengths
056
1105
214
382
470
513
628
758
836
916
108
1156
1267
1318
148
1584
1630
175
1825
1915
2042
2152
223
235
2442
2544
263
2769
2840
291
3020
93.02% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences86
matches
0"was locked"
1"being played"
2"been was"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs165
matches
0"was like walking"
1"was still showing"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences87
ratio0
matches(empty)
94.19% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1115
adjectiveStacks0
stackExamples(empty)
adverbCount52
adverbRatio0.04663677130044843
lyAdverbCount10
lyAdverbRatio0.008968609865470852
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences87
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences87
mean12.82
std11.44
cv0.893
sampleLengths
028
19
219
310
437
548
62
78
84
910
108
1121
1221
1332
1412
1517
1610
1731
1813
1920
208
214
2211
2333
2410
254
262
2730
2812
294
308
313
3213
333
3437
354
364
375
381
3917
401
4135
4218
438
446
458
4615
4715
4812
4928
60.54% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats9
diversityRatio0.42528735632183906
totalSentences87
uniqueOpeners37
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount5
totalSentences74
matches
0"Then the light came up"
1"Exactly still, the numbers unchanged"
2"Simply coming, unhurried, across the"
3"Somewhere far off, a deer"
4"Then, very close, at the"
ratio0.068
57.84% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount30
totalSentences74
matches
0"Her trainers hit wet grass"
1"She had told herself she"
2"She put it in her"
3"Her torch made a narrow"
4"She followed the path she"
5"They were not stone at"
6"They were oak, grown into"
7"She stopped at the edge"
8"It was not bright."
9"It was the colour of"
10"It came from the clearing's"
11"She could smell them now,"
12"She stepped through the gap"
13"It was like walking into"
14"Her ears popped."
15"She checked her phone."
16"She pressed the side button."
17"She tried again, and this"
18"She put the phone away"
19"She did not turn her"
ratio0.405
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount53
totalSentences74
matches
0"The gate at the Robin"
1"Her trainers hit wet grass"
2"She had told herself she"
3"A pulse, like a heartbeat"
4"The phone said 9:47."
5"She put it in her"
6"Richmond Park at night was"
7"The deer were somewhere out"
8"Her torch made a narrow"
9"She followed the path she"
10"The standing stones came up"
11"They were not stone at"
12"They were oak, grown into"
13"She stopped at the edge"
14"It was not bright."
15"It was the colour of"
16"It came from the clearing's"
17"She could smell them now,"
18"The pendant was hot."
19"*Hel*, she thought, and did"
ratio0.716
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences74
matches(empty)
ratio0
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences41
technicalSentenceCount0
matches(empty)
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags1
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags0
90.3807%