Run: 2026-10-09-01M4G1GM8RWEXGAHNK74V3MXQ1

Run Details

Duration:
14.8s
Cost:
$0.001111
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 park gate had been locked when Rory arrived, but the padlock hung open on its chain, as if someone had expected her. She stood a moment at the iron railing with her phone in one hand and the torch in the other, listening to the wind move through the bracken. Deer, she told herself. Richmond had more deer than sense. The path she wanted was not on any map she had ever seen. She had found it the way she found most things lately, by following the pendant. The Heartstone lay against her breastbone under her coat, on its silver chain, and for the last two miles it had grown steadily warmer, like a coal someone was breathing on. Now it was almost hot. She switched off the torch. Her eyes adjusted slowly. The city glow over the trees faded behind her, and the dark thickened into something with texture, the shapes of birches, the pale scatter of ground mist. The path bent left, then right, then left again, and she realised she had not seen the gate in several minutes. She looked back. There was only the trail, narrow and pale, running between the trunks. "Right," she said quietly. Her voice came out flat, as if the air had soaked up the sound. The grove announced itself with a ring of oaks. They stood in a loose circle, enormous and old, their bark furrowed like the knuckles of an old man's hands. Between them, standing stones rose waist-high or taller, grey and lichen-spotted. She counted seven before she stopped counting, because the number kept changing when she looked away and back. Inside the ring, the ground was carpeted with flowers. Bluebells, primroses, a wash of white anemone, foxgloves tall as her shoulder. It was October. Not a single petal should have been open. The scent hit her a moment later, sweet and heavy, and under it something cold, like a cellar. She stepped over the nearest stone. Her boot came down on soft moss. *You came*, a voice said. Or perhaps it was the wind, moving through the oak leaves in a long, sibilant breath. Rory stopped. She turned slowly in a full circle. Nothing. The flowers swayed a little, all in the same direction, the way grass bends under a hand. "Hello?" she said. The silence answered her, and it was not empty. It had the particular density of a room where someone has just stopped speaking. She took out her phone. The screen showed 11:52. She stared at it, then tapped it, and the display went blank for a second before it returned: 11:52. The seconds did not move. She pressed the side button, and the phone woke with the same time, the same frozen digits, as though the minute had decided to stay. Her pulse ticked in her throat. She made herself breathe in through her nose, the way she did before a difficult conversation with a client or a landlord. Think. The pendant was hot now, burning through her shirt, and she was almost certain it was pointing her somewhere. Between two of the oaks, something moved. It was low down, near the roots, and it was gone before she could fix on it. A pale flicker, a smear of grey, like a hand drawn across a dusty window. She kept her eyes on the spot. A minute passed. Then another. Nothing. Only the foxgloves, the stones, the dark shapes of the trees. When she glanced away to the left, she caught it again at the edge of her vision: a tall shape standing exactly where the trunks were thickest. She turned her head to look straight at it. It was a tree. Just a tree, the bark split and hollow, a knot of shadow in its trunk. She did not remember the tree being there before. "Right," she whispered again, and this time her voice shook. A sound came from behind her, to the north, where the path had been. Soft and regular. A rhythm like fingers tapping on wood. Tap. Tap. A pause. Tap. Then a second rhythm answered it from the south, slightly off-beat, as if something were listening and trying to match her. Rory did not turn around. Some instinct told her that turning around would give the thing something it wanted. Instead she shifted her weight, slowly, until she could see both paths from the corner of her eye, and she kept her hands loose at her sides. The pendant pulsed. Once, twice, a warm throb against her skin, bright as a heartbeat. Its light leaked through the cloth of her shirt, faint and crimson, and she saw, on the ground beside her boot, the outline of her own shadow cast in that red glow. Her shadow was a little late in moving when she shifted her foot. Only a fraction. A breath of delay, as though it had to remember how. She did not look at it. She looked at the trees. Something stood between the oaks, close enough now that she could have reached out and touched it. It did not step forward. It did not make a sound. It only waited, the way a held breath waits, and the flowers at its feet turned their faces toward her, all at once, like an audience that had been expecting her for a very long time. Rory swallowed. Her throat was dry. Her hand found the pendant through her coat and closed around it, and the warmth flared up under her fingers, insistent, not comforting. "I'm not staying," she said. The tapping began again, close now, directly behind the stone at her left shoulder. It kept time with her heart. She did not run. Running, she understood with cold clarity, was the one thing that would make the grove stop being patient. So she stood very still in the sweet, cellar-cold air, counting the wrong number of stones, and waited for the thing in the trees to decide what she was worth.
created_at"2026-10-09T09:57:06.976Z" 10/9/2026, 9:57:06 AM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2963
moderation_latency(null)
generation_time14732
tokens_prompt792
tokens_completion1492
native_tokens_prompt1172
native_tokens_completion1988
native_tokens_completion_images(null)
native_tokens_reasoning206
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"
usage0.0011112
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791539826-xyrNKG4DAe4cSDZ2dAtd"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791539826-oFOXrU3ZetN9uZB38uE7"
upstream_id"msg_011CfrTtRxSFeEoUqxkf9jr2"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfrTtRxSFeEoUqxkf9jr2"
is_byokfalse
latency845
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0011112
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
totalTags4
adverbTagCount2
adverbTags
0"she said quietly [quietly]"
1"she whispered again [again]"
dialogueSentences4
tagDensity1
leniency1
rawRatio0.5
effectiveRatio0.5
70.12% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1004
totalAiIsmAdverbs6
found
0
adverb"slowly"
count3
1
adverb"slightly"
count1
2
adverb"very"
count2
highlights
0"slowly"
1"slightly"
2"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)
55.18% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1004
totalAiIsms9
found
0
word"furrowed"
count1
1
word"silence"
count1
2
word"pulse"
count1
3
word"flicker"
count1
4
word"weight"
count1
5
word"pulsed"
count1
6
word"throb"
count1
7
word"warmth"
count1
8
word"comforting"
count1
highlights
0"furrowed"
1"silence"
2"pulse"
3"flicker"
4"weight"
5"pulsed"
6"throb"
7"warmth"
8"comforting"
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
narrationSentences91
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences91
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences91
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen36
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans1
markdownWords2
totalWords1004
ratio0.002
matches
0"You came"
75.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions5
unquotedAttributions1
matches
0"Deer, she told herself."
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions9
wordCount998
uniqueNames4
maxNameDensity0.4
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Tap"
discoveredNames
Rory4
Heartstone1
October1
Tap3
persons
0"Rory"
places(empty)
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences58
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1004
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences91
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs30
mean33.47
std19.45
cv0.581
sampleLengths
061
164
236
336
418
558
650
713
821
927
103
1123
1258
1348
147
1556
1655
179
1810
1950
2046
2147
2227
2311
2464
2529
265
2720
2822
2930
89.84% Passive voice overuse
Target: ≤2% passive sentences
passiveCount4
totalSentences91
matches
0"been locked"
1"was carpeted"
2"been open"
3"was gone"
71.79% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs156
matches
0"was breathing"
1"was pointing"
2"were listening"
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences91
ratio0
matches(empty)
91.45% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1002
adjectiveStacks1
stackExamples
0"sweet, cellar-cold air,"
adverbCount43
adverbRatio0.04291417165668663
lyAdverbCount13
lyAdverbRatio0.012974051896207584
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences91
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences91
mean11.03
std8.5
cv0.771
sampleLengths
023
128
24
36
413
515
631
75
85
94
1027
1121
123
1312
144
1514
169
1720
1811
1918
209
2112
223
238
2418
256
267
275
2816
292
307
311
3217
333
349
3514
365
374
3819
395
4025
416
4222
431
4419
457
4617
4715
487
493
57.51% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats6
diversityRatio0.38461538461538464
totalSentences91
uniqueOpeners35
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount6
totalSentences79
matches
0"Only the foxgloves, the stones,"
1"Just a tree, the bark"
2"Then a second rhythm answered"
3"Instead she shifted her weight,"
4"Once, twice, a warm throb"
5"Only a fraction."
ratio0.076
32.66% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount37
totalSentences79
matches
0"She stood a moment at"
1"She had found it the"
2"She switched off the torch."
3"Her eyes adjusted slowly."
4"She looked back."
5"she said quietly"
6"Her voice came out flat,"
7"They stood in a loose"
8"She counted seven before she"
9"It was October."
10"She stepped over the nearest"
11"Her boot came down on"
12"*You came*, a voice said."
13"She turned slowly in a"
14"It had the particular density"
15"She took out her phone."
16"She stared at it, then"
17"She pressed the side button,"
18"Her pulse ticked in her"
19"She made herself breathe in"
ratio0.468
67.59% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount62
totalSentences79
matches
0"The park gate had been"
1"She stood a moment at"
2"Deer, she told herself."
3"Richmond had more deer than"
4"The path she wanted was"
5"She had found it the"
6"The Heartstone lay against her"
7"She switched off the torch."
8"Her eyes adjusted slowly."
9"The city glow over the"
10"The path bent left, then"
11"She looked back."
12"she said quietly"
13"Her voice came out flat,"
14"The grove announced itself with"
15"They stood in a loose"
16"She counted seven before she"
17"Bluebells, primroses, a wash of"
18"It was October."
19"The scent hit her a"
ratio0.785
63.29% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences79
matches
0"Now it was almost hot."
ratio0.013
89.29% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences40
technicalSentenceCount3
matches
0"Then a second rhythm answered it from the south, slightly off-beat, as if something were listening and trying to match her."
1"It only waited, the way a held breath waits, and the flowers at its feet turned their faces toward her, all at once, like an audience that had been expecting he…"
2"Running, she understood with cold clarity, was the one thing that would make the grove stop being patient."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags4
uselessAdditionCount0
matches(empty)
25.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags4
fancyCount1
fancyTags
0"she whispered again (whisper)"
dialogueSentences4
tagDensity1
leniency1
rawRatio0.25
effectiveRatio0.25
82.9574%