Run: 2026-09-23-01M37Q6ZE0A78RNY0E7F17JS07

Run Details

Duration:
47.5s
Cost:
$0.070948
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 deer were the first wrong thing, though Rory didn't know it yet. She passed them at the top of the rise, a loose herd of maybe twenty, pale shapes in the dark bracken with their heads lifted. Richmond Park was full of deer. She'd seen them a dozen times on the way to the Grove, and they always did the same thing: froze, stared, then broke and ran in a clatter of hooves. Tonight they froze and stared, and that was all. She kept walking. Their heads turned to follow her, slow and in unison, like sunflowers tracking a lamp. She told herself it was the cold. It was the sort of November night that got into the joints, the air damp and heavy and smelling of wet leaves and, faintly, the chip-fat she hadn't managed to wash out of her jacket after her last Golden Empress run. Her phone said 11:52. She'd climbed the fence by Robin Hood Gate at half eleven and had been walking since, torch off, following the path by memory and starlight because the torch felt like shouting. The pendant had started it. She'd been carrying a bag of Singapore noodles up three flights in Hammersmith when the Heartstone, tucked under her shirt, had gone warm against her sternum. Not the faint living warmth it always had, the little glow she'd grown used to, but *hot*, a coal-heat that had made her stop on the landing with one hand pressed flat to her chest. It had lasted maybe five seconds. Then it had faded, and she'd delivered the noodles, and ridden back to the restaurant, and ignored three texts from Eva, and lain awake in the flat above Silas' bar listening to the last drinkers argue on the pavement, and at eleven o'clock she had given up pretending and got dressed. The pendant only did that near a Hel portal. And there was only one place in London she could think of that sat close enough to the seams of things to be worth checking. Isolde would know. Isolde always knew. That was the reasoning, anyway, and it had sounded better in her bedroom than it did out here. The oak stones rose out of the dark ahead of her, and Rory slowed. She'd always thought of them as stones even though they were wood: great grey trunks of ancient oak, dead so long they'd gone hard and silvered, standing in a ring at the edge of the clearing like the teeth of something buried. She'd walked between them maybe fifteen times now. Every time there had been a little lurch, a sense of stepping off a kerb she hadn't seen, and then the air would change, go soft and warm and full of the smell of flowers, and the Grove would open around her in the middle of winter like a held breath let out. She stepped between the stones. Nothing lurched. The air didn't change. It stayed cold and wet and ordinary, and for a moment she thought she'd come the wrong way. Then her eyes adjusted and she saw the wildflowers, the ones that bloomed year-round, the foxgloves and campion and the little white stars whose name she'd never learned, and every one of them was closed. Folded up tight on their stalks. Heads bowed. "Isolde?" Her voice came out smaller than she meant it to. The clearing swallowed it without an echo. No answer. No wind, either, she realised. The bare trees beyond the stones should have been creaking, the bracken hissing. Instead there was a silence so complete she could hear the blood moving in her ears. She could hear, faintly, the rustle of her own jacket as she breathed. She took the pendant out from under her collar. The crimson stone sat in her palm, no bigger than her thumbnail, its inner glow a dull ember in the dark. It was warm. Not hot, not like on the landing, but warmer than her skin, warmer than it had any right to be on a night like this. She turned slowly in a circle, holding it out like a dowsing rod, feeling like an idiot. The warmth didn't change. It wasn't coming from any one direction. It was just there, steady, the way a room is warm. Rory checked her phone again. 11:52. She stared at it. She'd climbed the fence at half eleven. She'd walked twenty minutes at least. She'd been standing in the clearing for — what, two minutes? Three? She watched the screen until it dimmed, and the numbers didn't move. *Time moves differently here*, Isolde had told her once, laughing, when Rory came out after what had felt like an afternoon and found three days of missed calls. *Sometimes faster. Sometimes slower. It depends what the Grove wants.* It had never stopped before. She put the phone away. Her hands, she noticed, were steady, and she was distantly proud of that. Cool-headed Rory. Think it through. The pendant was warm, which meant something from Hel was near, or had been near. The Grove was wrong, which meant something had happened to it. Isolde wasn't answering, which meant she was elsewhere, or — no. Elsewhere. The sensible thing, the obviously sensible thing, was to leave, go home, and come back in daylight with Silas or Eva or anyone at all. She turned to go, and counted the stones without meaning to. It was an old habit, one she'd picked up the first time she came here, the way you count stairs in a new building. Thirteen. There had always been thirteen oak stones, and she always touched the seventh one, the one with the split down its middle, on her way out, for luck. She counted fourteen. She counted again, slowly, her lips moving. Fourteen. The split stone was where it should be. The gap she'd come through was where it should be. And to the left of the gap, at the very edge of her vision, where she was fairly sure there had been open ground, there was another tall grey shape. She didn't look straight at it. She couldn't have said why. It was just a feeling, bone-deep and animal, that looking at it straight would be a kind of permission. Behind her, in the middle of the clearing, something shifted its weight. It was a small sound. The soft compression of grass under a foot, the sound she herself had made walking in. Rory went very still. The pendant pulsed once in her fist, a single throb of heat like a heartbeat that wasn't hers. *The deer*, she thought. *One of the deer followed you in.* But deer didn't stand like that. She could feel exactly how it was standing, the way you can feel someone behind you in a queue: upright, close, patient. Not breathing. She was listening so hard her ears rang, and there was no breath. She kept her eyes on the gap between the stones. Ten steps. Maybe twelve. She could do twelve steps. She took one. The grass behind her whispered as something took one too. She stopped. It stopped. Around her feet, very slowly, the closed flowers were lifting their heads. She saw it out of the corner of her eye, a ripple through the pale stalks, each bowed bud straightening and turning. Not toward her. Past her. Toward whatever stood at her back, the way the deer on the rise had turned, the way a congregation turns when the doors open at the back of the church. "Rory." The voice was low and warm and very close to her left ear, and she knew it. That was the worst of it. She knew it the way she knew her own scar, the little crescent on her left wrist that she was pressing now, hard, with her thumb, the way she used to in the kitchen in Cardiff when she heard his key in the lock. The voice had a lilt she'd spent two years trying to forget. It said her name the way he had said it, as if it were already an apology and a warning at once. Evan was in Cardiff. Evan didn't know where she lived. Evan had never heard of Richmond Park. "Rory, love. Look at me." She didn't. Her eyes burned from not blinking. Twelve steps, eleven now, and the gap between the stones had never looked so far away, and at the edge of her sight the fourteenth stone was not quite where it had been a moment ago. It was nearer the gap. It was leaning, very slightly, the way a person leans to catch your eye across a room. The pendant was hot now. Hot the way it had been on the landing in Hammersmith, and she understood, with a clarity that went through her like cold water, that it hadn't been warning her about something in Hammersmith at all. It had been warning her about tonight. About the decision she'd been about to make. "You came all this way," the voice said, gently, reasonably, the way he'd always been reasonable. "The least you can do is turn round." Rory closed her fist around the burning stone until it hurt, fixed her eyes on the dark between the oaks, and did not turn round. She took the next step. Behind her, patient as a held breath, so did it.
created_at"2026-09-23T18:07:27.703Z" 9/23/2026, 6:07:27 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4647
moderation_latency(null)
generation_time47437
tokens_prompt792
tokens_completion2457
native_tokens_prompt1172
native_tokens_completion3313
native_tokens_completion_images(null)
native_tokens_reasoning473
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"
usage0.070948
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790186847-NmpEdjDTCpSiA4QvkpvZ"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790186847-kIn4H1cx7kFb4U6w7fP8"
upstream_id"msg_011CfLpLWUEVsapSapqqFs4V"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLpLWUEVsapSapqqFs4V"
is_byokfalse
latency1274
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.070948
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
totalTags2
adverbTagCount0
adverbTags(empty)
dialogueSentences5
tagDensity0.4
leniency0.8
rawRatio0
effectiveRatio0
68.13% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1569
totalAiIsmAdverbs10
found
0
adverb"slowly"
count3
1
adverb"very"
count5
2
adverb"slightly"
count1
3
adverb"gently"
count1
highlights
0"slowly"
1"very"
2"slightly"
3"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)
61.76% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1569
totalAiIsms12
found
0
word"warmth"
count2
1
word"lurch"
count1
2
word"sense of"
count1
3
word"lurched"
count1
4
word"echo"
count1
5
word"silence"
count1
6
word"weight"
count1
7
word"pulsed"
count1
8
word"throb"
count1
9
word"could feel"
count1
10
word"lilt"
count1
highlights
0"warmth"
1"lurch"
2"sense of"
3"lurched"
4"echo"
5"silence"
6"weight"
7"pulsed"
8"throb"
9"could feel"
10"lilt"
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
narrationSentences127
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount2
narrationSentences127
filterMatches(empty)
hedgeMatches
0"managed to"
1"happened to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences131
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen53
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans5
markdownWords24
totalWords1571
ratio0.015
matches
0"hot"
1"Time moves differently here"
2"Sometimes faster. Sometimes slower. It depends what the Grove wants."
3"The deer"
4"One of the deer followed you in."
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
totalMentions41
wordCount1528
uniqueNames20
maxNameDensity0.46
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Rory"
discoveredNames
Rory7
Park2
Grove4
November1
Golden1
Empress1
Robin1
Hood1
Gate1
Singapore1
Hammersmith3
Heartstone1
Eva2
Hel2
London1
Isolde4
Silas1
Cardiff2
Richmond2
Evan3
persons
0"Rory"
1"Grove"
2"Robin"
3"Hood"
4"Gate"
5"Heartstone"
6"Eva"
7"Isolde"
8"Silas"
9"Evan"
places
0"Park"
1"Singapore"
2"Hammersmith"
3"Hel"
4"London"
5"Cardiff"
6"Richmond"
globalScore1
windowScore1
28.05% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences82
glossingSentenceCount4
matches
0"felt like shouting"
1"felt like an afternoon and found three"
2"ble thing, the obviously sensible thing, was"
3"not quite where it had been a moment ago"
9.04% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches3
per1kWords1.91
wordCount1571
matches
0"Not the faint living warmth it always had, the little glow she'd grown used to, but *hot*, a coal-heat"
1"Not hot, not like on the landing, but warmer than her skin, warmer than it had any right to be on"
2"not like on the landing, but warmer than her skin, warmer than it had any right to be on"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences131
matches
0"did that near"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs43
mean36.53
std33.27
cv0.911
sampleLengths
013
188
283
3123
434
524
614
7103
85
92
1065
111
1217
1349
1497
156
1641
1738
185
1986
2011
2153
223
2356
2430
2512
2643
2711
2843
2919
3013
314
3269
331
34101
3517
365
3766
3856
3924
4025
415
4210
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences127
matches
0"been open"
69.28% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount5
totalVerbs255
matches
0"wasn't coming"
1"wasn't answering"
2"was standing"
3"was listening"
4"were lifting"
99.24% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount2
semicolonCount0
flaggedSentences2
totalSentences131
ratio0.015
matches
0"She'd been standing in the clearing for — what, two minutes?"
1"Isolde wasn't answering, which meant she was elsewhere, or — no."
99.77% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount298
adjectiveStacks0
stackExamples(empty)
adverbCount12
adverbRatio0.040268456375838924
lyAdverbCount1
lyAdverbRatio0.003355704697986577
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences131
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences131
mean11.99
std11.21
cv0.934
sampleLengths
013
125
26
330
49
53
615
77
841
94
1031
115
1226
1335
146
1551
169
1725
183
193
2018
2114
2242
238
2453
255
262
274
2818
2935
306
312
321
3310
347
352
365
3713
3816
3913
409
4121
423
4325
4417
454
467
4711
485
491
37.18% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats20
diversityRatio0.3153846153846154
totalSentences130
uniqueOpeners41
91.74% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount3
totalSentences109
matches
0"Then it had faded, and"
1"Then her eyes adjusted and"
2"Instead there was a silence"
ratio0.028
32.84% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount51
totalSentences109
matches
0"She passed them at the"
1"She'd seen them a dozen"
2"She kept walking."
3"Their heads turned to follow"
4"She told herself it was"
5"It was the sort of"
6"Her phone said 11:52."
7"She'd climbed the fence by"
8"She'd been carrying a bag"
9"It had lasted maybe five"
10"She'd always thought of them"
11"She'd walked between them maybe"
12"She stepped between the stones."
13"It stayed cold and wet"
14"Her voice came out smaller"
15"She could hear, faintly, the"
16"She took the pendant out"
17"It was warm."
18"She turned slowly in a"
19"It wasn't coming from any"
ratio0.468
56.33% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount88
totalSentences109
matches
0"The deer were the first"
1"She passed them at the"
2"Richmond Park was full of"
3"She'd seen them a dozen"
4"Tonight they froze and stared,"
5"She kept walking."
6"Their heads turned to follow"
7"She told herself it was"
8"It was the sort of"
9"Her phone said 11:52."
10"She'd climbed the fence by"
11"The pendant had started it."
12"She'd been carrying a bag"
13"It had lasted maybe five"
14"The pendant only did that"
15"Isolde would know."
16"Isolde always knew."
17"That was the reasoning, anyway,"
18"The oak stones rose out"
19"She'd always thought of them"
ratio0.807
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences109
matches(empty)
ratio0
91.84% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences56
technicalSentenceCount4
matches
0"It was the sort of November night that got into the joints, the air damp and heavy and smelling of wet leaves and, faintly, the chip-fat she hadn't managed to w…"
1"Not the faint living warmth it always had, the little glow she'd grown used to, but *hot*, a coal-heat that had made her stop on the landing with one hand press…"
2"Then her eyes adjusted and she saw the wildflowers, the ones that bloomed year-round, the foxgloves and campion and the little white stars whose name she'd neve…"
3"The pendant pulsed once in her fist, a single throb of heat like a heartbeat that wasn't hers."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags2
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags1
fancyCount0
fancyTags(empty)
dialogueSentences5
tagDensity0.2
leniency0.4
rawRatio0
effectiveRatio0
81.5065%