Run: 2026-04-24-01KPZV0BWVPJTFDRHQTZ6EPEQP

Run Details

Duration:
28.0s
Cost:
$0.053650
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 Tube had spat Rory out at Richmond nearly forty minutes ago, and she still couldn't shake the feeling that she'd missed a stop somewhere between stations. Not a wrong one — a real one, a silent carriage that pulled up alongside hers for half a breath and then vanished into the black. She'd been thinking about it the whole walk up, her boots crunching gravel, the Heartstone warm against her sternum beneath her jumper. Warm. That was the other thing. It had been warm since Sheen Gate. Richmond Park at night was not supposed to feel like this. She'd walked it in daylight a dozen times, following Eva up to the Isabella Plantation on Sunday afternoons when the light came down through the rhododendrons in lazy gold shafts. At night it should have been the same park, only darker: grass, trees, the occasional eyeshine of a deer, the distant hum of the A316 like a tide. Reasonable things. Instead, the hum had gone. Not faded — gone, as though someone had closed a door behind her. Rory stopped at the edge of a bracken sea and listened. Her own breath. The small, guilty creak of her jacket. Beyond that, the kind of silence that had weight to it, that pressed itself against her eardrums like cupped palms. "Okay," she said, because saying things out loud was a small act of defiance she had learned to make since Evan. "You wanted the grove. This is the grove bit. This is what the grove is like." She didn't believe herself. She didn't think the grove was listening, either, but she could not entirely rule it out. The pendant pulsed. Not loud — just a steady, patient heartbeat between her collarbones, exactly the tempo of her own, and then, horribly, a little faster. She put two fingers under the collar of her jumper and touched the stone. The deep crimson was visible through the weave of the wool, a red lamp inside a lantern. When she lifted it out, the silver chain caught what little moonlight there was and she realised there should have been more light than this. The sky above was clear. There was a moon. She had seen it half an hour ago, low and fat and yellow over the deer enclosure. She looked up. There were stars. There was no moon. "Right," she said. The oaks made themselves visible about twenty paces further on, the way things do in dreams — she had been walking toward them, she thought, but they stepped into place rather than growing nearer. Four of them, she'd been told. Standing stones of living wood, older than any stone, their trunks rising thick and fluted and motionless as pillars, their crowns lost somewhere above her. Between them, a gap. Beyond the gap, the faint, impossible suggestion of wildflowers in bloom. In November. She stopped at the boundary. The Heartstone throbbed against her hand. Something moved on her left. She did not turn her head. She had learned, at twenty-two, in the flat she was no longer allowed to think about, that there were some things you did not turn toward quickly. You looked sideways. You used the pane of a darkened window. You used the curve of a kettle. You let the movement come to you or not, and you did not give it the gift of your full attention until you had decided what it was. So she kept her eyes on the nearest oak and let her peripheral vision do the work. A shape, low. About the size of a fox. The wrong gait — too many pauses in it, like a thing stepping through a film played one frame at a time. Then nothing. She breathed out through her nose. "Isolde?" she called, softly, into the gap between the trees. "Is that you having a laugh?" The grove did not answer. Grove-silence was different from park-silence; grove-silence felt furnished. She took a step forward, between the oaks. The cold went first. The November in her bones, the damp of her jeans against her calves, the ache that had been building in her left wrist where the little crescent scar always complained about weather — all of it stopped at the threshold like coats left at a door. Warm air came up to meet her, smelling of cut grass and thyme and something beneath it that was not quite either. Wildflowers, pale, luminous, opened around her boots as if her weight pressed them into being. Behind her, a twig snapped. She turned. The oaks were there. The gap was there. Beyond the gap was Richmond Park, dim and bracken-dark, exactly as she had left it. Nothing stood between the stones. Nothing she could see. But the twig had snapped on this side of the boundary, and her own feet had not moved. "Hello?" she said. Her voice did not carry the way it should have. It went out about three feet and dropped, as though the grove were holding it. The pendant, against her skin, had become uncomfortably hot. She took another slow step deeper into the clearing and turned a full, careful circle. Ferns. Flowers. The four oaks, standing guard. No other figure. No fox-shape. The stars overhead wheeled in a pattern she did not recognise and she chose, firmly, not to look at them again. And then, from somewhere very close — closer than the oaks, closer than her own shadow should have allowed — a breath. Not hers. It came in, long and considering, as if someone were smelling her hair. It let out again, and she felt the faintest warm stir against the back of her neck, exactly where the clasp of the silver chain lay. Her hand closed around the Heartstone so hard the setting bit her palm. She did not run. She had learned, at twenty-two, that running was sometimes the thing a watcher was waiting for. "I know you're there," Rory said, very quietly, to the empty air at her back. "I've brought what I was asked to bring. So either show yourself, or stop playing." The grove held its breath with her. Somewhere in the trees, something began, softly, to laugh.
created_at"2026-04-24T13:31:28.039Z" 4/24/2026, 1:31:28 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency649
moderation_latency(null)
generation_time27945
tokens_prompt812
tokens_completion1511
native_tokens_prompt1175
native_tokens_completion1911
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)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
usage0.05365
router(null)
provider_responses
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endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"2190be0c-b7aa-436a-942b-cb5157652f79"
is_byokfalse
latency649
model_permaslug"anthropic/claude-4.7-opus-20260416"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777037488-faKpD6ZGmvpNeyTO6FaY"
session_id(null)
api_type"completions"
id"gen-1777037488-419ZdZwY2QYrEizhMJv8"
upstream_id"2190be0c-b7aa-436a-942b-cb5157652f79"
total_cost0.05365
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags5
adverbTagCount0
adverbTags(empty)
dialogueSentences8
tagDensity0.625
leniency1
rawRatio0
effectiveRatio0
75.70% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1029
totalAiIsmAdverbs5
found
0
adverb"quickly"
count1
1
adverb"softly"
count2
2
adverb"very"
count2
highlights
0"quickly"
1"softly"
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)
56.27% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1029
totalAiIsms9
found
0
word"silence"
count4
1
word"weight"
count2
2
word"pulsed"
count1
3
word"throbbed"
count1
4
word"firmly"
count1
highlights
0"silence"
1"weight"
2"pulsed"
3"throbbed"
4"firmly"
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
narrationSentences89
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences89
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences92
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen45
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1037
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions8
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions25
wordCount992
uniqueNames14
maxNameDensity0.4
worstName"You"
maxWindowNameDensity2
worstWindowName"You"
discoveredNames
Tube1
Rory3
Richmond3
Heartstone3
Sheen1
Gate1
Park2
Eva1
Isabella1
Plantation1
Sunday1
Evan1
November2
You4
persons
0"Tube"
1"Rory"
2"Heartstone"
3"Eva"
4"Evan"
5"You"
places
0"Richmond"
1"Park"
2"Isabella"
3"Plantation"
4"November"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences53
glossingSentenceCount1
matches
0"not quite either"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1037
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences92
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs42
mean24.69
std27.05
cv1.095
sampleLengths
075
16
27
371
418
541
637
720
8108
93
107
113
1282
135
146
155
1679
1717
1833
196
2016
2113
228
2387
245
252
2623
275
284
2918
303
3125
329
3348
3422
352
3639
3713
3820
3930
407
419
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences89
matches
0"been told"
21.03% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs149
matches
0"was listening"
1"were holding"
2"were smelling"
3"was waiting"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount8
semicolonCount1
flaggedSentences8
totalSentences92
ratio0.087
matches
0"Not a wrong one — a real one, a silent carriage that pulled up alongside hers for half a breath and then vanished into the black."
1"Not faded — gone, as though someone had closed a door behind her."
2"Not loud — just a steady, patient heartbeat between her collarbones, exactly the tempo of her own, and then, horribly, a little faster."
3"The oaks made themselves visible about twenty paces further on, the way things do in dreams — she had been walking toward them, she thought, but they stepped into place rather than growing nearer."
4"The wrong gait — too many pauses in it, like a thing stepping through a film played one frame at a time."
5"Grove-silence was different from park-silence; grove-silence felt furnished."
6"The November in her bones, the damp of her jeans against her calves, the ache that had been building in her left wrist where the little crescent scar always complained about weather — all of it stopped at the threshold like coats left at a door."
7"And then, from somewhere very close — closer than the oaks, closer than her own shadow should have allowed — a breath."
95.27% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount991
adjectiveStacks0
stackExamples(empty)
adverbCount45
adverbRatio0.045408678102926335
lyAdverbCount13
lyAdverbRatio0.013118062563067608
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences92
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences92
mean11.27
std9.13
cv0.81
sampleLengths
027
126
222
31
45
57
611
730
828
92
105
1113
1211
133
147
1520
1621
1716
184
1916
203
2123
2214
2317
2425
255
264
2717
283
293
304
313
3234
336
3425
354
3611
372
385
396
405
416
4227
433
448
457
4628
4717
483
496
59.06% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats14
diversityRatio0.44565217391304346
totalSentences92
uniqueOpeners41
85.47% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences78
matches
0"Instead, the hum had gone."
1"Somewhere in the trees, something"
ratio0.026
76.41% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount28
totalSentences78
matches
0"She'd been thinking about it"
1"It had been warm since"
2"She'd walked it in daylight"
3"Her own breath."
4"she said, because saying things"
5"She didn't believe herself."
6"She didn't think the grove"
7"She put two fingers under"
8"She had seen it half"
9"She looked up."
10"She stopped at the boundary."
11"She did not turn her"
12"She had learned, at twenty-two,"
13"You looked sideways."
14"You used the pane of"
15"You used the curve of"
16"You let the movement come"
17"She breathed out through her"
18"she called, softly, into the"
19"She took a step forward,"
ratio0.359
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount55
totalSentences78
matches
0"The Tube had spat Rory"
1"She'd been thinking about it"
2"That was the other thing."
3"It had been warm since"
4"Richmond Park at night was"
5"She'd walked it in daylight"
6"Rory stopped at the edge"
7"Her own breath."
8"The small, guilty creak of"
9"she said, because saying things"
10"She didn't believe herself."
11"She didn't think the grove"
12"The pendant pulsed."
13"She put two fingers under"
14"The deep crimson was visible"
15"The sky above was clear."
16"She had seen it half"
17"She looked up."
18"The oaks made themselves visible"
19"She stopped at the boundary."
ratio0.705
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences78
matches(empty)
ratio0
46.33% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences37
technicalSentenceCount5
matches
0"She'd been thinking about it the whole walk up, her boots crunching gravel, the Heartstone warm against her sternum beneath her jumper."
1"Standing stones of living wood, older than any stone, their trunks rising thick and fluted and motionless as pillars, their crowns lost somewhere above her."
2"The November in her bones, the damp of her jeans against her calves, the ache that had been building in her left wrist where the little crescent scar always com…"
3"Warm air came up to meet her, smelling of cut grass and thyme and something beneath it that was not quite either."
4"It came in, long and considering, as if someone were smelling her hair."
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
totalTags5
fancyCount0
fancyTags(empty)
dialogueSentences8
tagDensity0.625
leniency1
rawRatio0
effectiveRatio0
83.8513%