Run: 2026-02-18-01KHQ92QEB8ZA14RHF0E1FTP6J

Run Details

Duration:
36.5s
Cost:
$0.025977
Provider:
Amazon Bedrock

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 stones were wrong. Rory had been to the grove a dozen times now, enough to know its particular rhythms — the way the air cooled as she passed through the ring of oaks, the way the wildflowers held their colours even at night, luminous and slightly too vivid, like a painting attempting to describe a dream. She knew the way sound changed inside the boundary, how the ambient noise of Richmond Park dropped away and left something quieter and more honest in its place. Tonight, the stones were wrong. She couldn't say exactly how. They were still standing, still ancient, still wearing their mantles of dark moss. The boundary markers she'd memorised over weeks of careful visits. But as she stepped between the two easternmost oaks at half past eleven, her foot catching briefly on a root she always forgot about, there was a quality to the air that made her pause before she'd taken three steps inside. She stood still and listened. Nothing. That was the thing. Not the layered, breathing nothing of the grove at rest, the cricket-hush and the distant owl and the soft percussion of her own heartbeat — but a flat, pressurised nothing, the nothing of a room after a sound has just been made and hasn't finished echoing yet. She'd come because of the pendant. It had started pulsing at quarter to eleven, while she was eating leftover dumplings from work over the kitchen sink, still wearing her courier jacket, not yet committed to bed. A faint warmth against her sternum, rhythmic, insistent. She'd pressed two fingers to it through her shirt and felt the heat building and receding with clockwork patience, and she'd thought, the grove, and then she'd thought, it's nearly midnight, and then she'd thought, when has that stopped you, and she'd laced up her trainers. Now the pendant was still. Not cool — it was never quite cool — but still, the pulse suspended, as though it too were listening. Rory moved deeper into the clearing because that was the kind of person she was. She moved carefully, though. That was also the kind of person she was. The wildflowers were open. She noticed that immediately, because she'd wondered once whether they closed at night, and she'd never managed to check. White starbursts and small purple clusters and something yellow-orange she'd never been able to name, all of them tilted slightly upward, the way flowers turn toward a light source. There was no moon tonight. She'd checked before leaving — cloud cover all the way in, the forecast had said. But the flowers were turned toward something in the centre of the clearing, and Rory's eyes moved to follow the geometry of their attention. Nothing there. An empty patch of grass, slightly darker than the rest, or perhaps she was imagining that. She exhaled slowly. Behind her — not close, but not far — a twig snapped. She turned. The oaks stood in their ring, impassive. The space between them was the deep, unreadable grey of a night without stars. She watched the gap she'd entered through and counted to ten in her head the way she'd read once about managing fear, though she'd never quite believed in it. It helped the way cold water helped — not by solving anything, just by giving her something else to focus on. Nothing came through. She turned back to the clearing. There was a shape at the treeline to her left that she was almost certain had not been there a moment ago. She looked directly at it, which was perhaps the wrong instinct, but she'd never been good at looking away from things. A shadow, roughly the dimensions of a large shrub, but too vertical, too articulated, too much like a suggestion of a person who did not wish to be perceived as a person. She stared at it for a long moment. It did not move. She reminded herself that the brain in low light manufactures intentions and faces from neutral shapes, that pareidolia was a survival mechanism and not a prophecy. The shape didn't move. Her eyes, tired from the staring, slid briefly sideways — only for a second, a reflexive adjustment — and when she looked back, the shape was in a slightly different position. Not closer. Not farther. Just different, the way an actor moves when they think no one is watching the stage. "Alright," she said, because silence felt suddenly unacceptable. Her voice fell flat in the deadened air and did not come back. She had been cold since entering. She registered this belatedly, the way she registered hunger sometimes only when it was already urgent. The grove was never warm exactly, but it was usually temperate, the mild impossible warmth of somewhere seasonless. Tonight she could see her own breath, thin white ribbons curling upward in the dark. She watched one dissipate. Watched another form. Something moved at the very edge of her vision, over her right shoulder this time. She didn't turn. The trick with peripheral movement, she'd found, was that it rewarded attention. Whatever it was — optical, real, somewhere between the two — it saved itself for the corner of the eye. Every time she turned toward it, it withdrew or resolved into a branch, a shift of shadow, a plausible nothing. She was beginning to understand this as a pattern. She stood in the centre of the clearing, breathing carefully, and let her vision go soft and wide. The pendant lay against her skin, still, patient, waiting for something she hadn't provided yet. The sounds came next. Small ones, first — the sound of weight being redistributed on soft ground, not a single footstep but a continual, almost meditative shifting, as though something stood very close and rocked gently in place. She counted three distinct points of origin around her. Perhaps four. The sounds didn't synchronise, but they shared a quality, a frequency beneath frequency, and she understood without wanting to that they were related. She turned slowly, performing calm. The clearing was, so far as she could see, empty. She had been here for seventeen minutes, she estimated. In the grove, that could mean anything. Out in the park, it could mean less. Or far, far more. The pendant flared. Not the soft patient pulse she'd felt earlier, but a sudden hard heat, almost painful against her sternum, and she gasped before she could stop herself and pressed her hand flat against her chest over her jacket. The warmth built and crested and held, a sustained note, an alarm, and the darkness at the treeline deepened, thickened, acquired a texture. The shifting sounds stopped. In the total silence that replaced them, Rory became aware of breathing that was not her own. It came from her left, from below her eye level, from somewhere very close, and it had the slow cadence of something that had been there for quite a long time already, watching her sort out what was wrong. She turned her head, slowly, toward the sound. Whatever had been waiting in the dark met her gaze and waited to see what she would do next.
created_at"2026-02-18T02:26:23.366706+00:00" 2/18/2026, 2:26:23 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency628
moderation_latency140
generation_time35805
tokens_prompt812
tokens_completion1798
native_tokens_prompt839
native_tokens_completion1564
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.025977
router(null)
provider_responses
0
id"27fc5b25-6bf6-4da9-8a67-9cde8a7a5dc9"
status200
is_byokfalse
latency626
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
provider_name"Amazon Bedrock"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381546-kunKpbprQRJviaT5TIZW"
upstream_id"27fc5b25-6bf6-4da9-8a67-9cde8a7a5dc9"
total_cost0.025977
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags1
adverbTagCount0
adverbTags(empty)
dialogueSentences1
tagDensity1
leniency1
rawRatio0
effectiveRatio0
41.03% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1187
totalAiIsmAdverbs14
found
0
adverb"slightly"
count4
1
adverb"carefully"
count2
2
adverb"slowly"
count3
3
adverb"suddenly"
count1
4
adverb"very"
count3
5
adverb"gently"
count1
highlights
0"slightly"
1"carefully"
2"slowly"
3"suddenly"
4"very"
5"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)
49.45% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1187
totalAiIsms12
found
0
word"echoing"
count1
1
word"warmth"
count3
2
word"rhythmic"
count1
3
word"pulse"
count2
4
word"unreadable"
count1
5
word"silence"
count2
6
word"resolved"
count1
7
word"weight"
count1
highlights
0"echoing"
1"warmth"
2"rhythmic"
3"pulse"
4"unreadable"
5"silence"
6"resolved"
7"weight"
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
narrationSentences84
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount1
narrationSentences84
filterMatches
0"think"
hedgeMatches
0"managed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences84
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen52
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1198
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions6
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions6
wordCount1197
uniqueNames3
maxNameDensity0.33
worstName"Rory"
maxWindowNameDensity1
worstWindowName"Rory"
discoveredNames
Richmond1
Park1
Rory4
persons
0"Rory"
places
0"Richmond"
1"Park"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences57
glossingSentenceCount0
matches(empty)
0.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches3
per1kWords2.504
wordCount1198
matches
0"not close, but not far"
1"not a single footstep but a continual, almost meditative shifting, as though something"
2"Not the soft patient pulse she'd felt earlier, but a sudden hard heat, almost painful against her sternum"
87.30% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount2
totalSentences84
matches
0"left that she"
1"was that it"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs39
mean30.72
std29.57
cv0.963
sampleLengths
04
181
25
369
45
552
66
784
825
928
1096
1118
123
1312
1473
153
166
1722
1891
194
2051
218
2213
2362
2415
253
2661
2733
284
2968
305
3110
3228
333
3460
354
3656
378
3819
96.91% Passive voice overuse
Target: ≤2% passive sentences
passiveCount2
totalSentences84
matches
0"been made"
1"being redistributed"
65.32% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs198
matches
0"was eating"
1"were listening"
2"was imagining"
3"was beginning"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount13
semicolonCount0
flaggedSentences9
totalSentences84
ratio0.107
matches
0"Rory had been to the grove a dozen times now, enough to know its particular rhythms — the way the air cooled as she passed through the ring of oaks, the way the wildflowers held their colours even at night, luminous and slightly too vivid, like a painting attempting to describe a dream."
1"Not the layered, breathing nothing of the grove at rest, the cricket-hush and the distant owl and the soft percussion of her own heartbeat — but a flat, pressurised nothing, the nothing of a room after a sound has just been made and hasn't finished echoing yet."
2"Not cool — it was never quite cool — but still, the pulse suspended, as though it too were listening."
3"She'd checked before leaving — cloud cover all the way in, the forecast had said."
4"Behind her — not close, but not far — a twig snapped."
5"It helped the way cold water helped — not by solving anything, just by giving her something else to focus on."
6"Her eyes, tired from the staring, slid briefly sideways — only for a second, a reflexive adjustment — and when she looked back, the shape was in a slightly different position."
7"Whatever it was — optical, real, somewhere between the two — it saved itself for the corner of the eye."
8"Small ones, first — the sound of weight being redistributed on soft ground, not a single footstep but a continual, almost meditative shifting, as though something stood very close and rocked gently in place."
84.09% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1186
adjectiveStacks0
stackExamples(empty)
adverbCount69
adverbRatio0.0581787521079258
lyAdverbCount23
lyAdverbRatio0.0193929173693086
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences84
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences84
mean14.26
std11.85
cv0.831
sampleLengths
04
153
228
35
45
513
610
741
85
91
104
1147
126
1330
148
1546
165
1720
1815
194
209
214
2219
2329
245
2515
2624
272
2816
293
3012
312
327
3314
3429
3521
363
376
3822
3921
4032
418
424
4326
444
4531
462
472
4816
498
48.41% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats6
diversityRatio0.3333333333333333
totalSentences84
uniqueOpeners28
42.74% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences78
matches
0"Just different, the way an"
ratio0.013
55.90% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount32
totalSentences78
matches
0"She knew the way sound"
1"She couldn't say exactly how."
2"They were still standing, still"
3"She stood still and listened."
4"She'd come because of the"
5"It had started pulsing at"
6"She'd pressed two fingers to"
7"She moved carefully, though."
8"She noticed that immediately, because"
9"She'd checked before leaving —"
10"She exhaled slowly."
11"She watched the gap she'd"
12"It helped the way cold"
13"She turned back to the"
14"She looked directly at it,"
15"She stared at it for"
16"It did not move."
17"She reminded herself that the"
18"Her eyes, tired from the"
19"she said, because silence felt"
ratio0.41
68.97% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount61
totalSentences78
matches
0"The stones were wrong."
1"Rory had been to the"
2"She knew the way sound"
3"Tonight, the stones were wrong."
4"She couldn't say exactly how."
5"They were still standing, still"
6"The boundary markers she'd memorised"
7"She stood still and listened."
8"That was the thing."
9"She'd come because of the"
10"It had started pulsing at"
11"A faint warmth against her"
12"She'd pressed two fingers to"
13"Rory moved deeper into the"
14"She moved carefully, though."
15"That was also the kind"
16"The wildflowers were open."
17"She noticed that immediately, because"
18"She'd checked before leaving —"
19"An empty patch of grass,"
ratio0.782
64.10% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences78
matches
0"Now the pendant was still."
ratio0.013
43.19% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences43
technicalSentenceCount6
matches
0"But as she stepped between the two easternmost oaks at half past eleven, her foot catching briefly on a root she always forgot about, there was a quality to the…"
1"Not cool — it was never quite cool — but still, the pulse suspended, as though it too were listening."
2"A shadow, roughly the dimensions of a large shrub, but too vertical, too articulated, too much like a suggestion of a person who did not wish to be perceived as…"
3"Small ones, first — the sound of weight being redistributed on soft ground, not a single footstep but a continual, almost meditative shifting, as though somethi…"
4"In the total silence that replaced them, Rory became aware of breathing that was not her own."
5"It came from her left, from below her eye level, from somewhere very close, and it had the slow cadence of something that had been there for quite a long time a…"
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
totalTags1
fancyCount0
fancyTags(empty)
dialogueSentences1
tagDensity1
leniency1
rawRatio0
effectiveRatio0
78.2472%