Run: 2026-09-23-01M37PPF2FW86MD6AHC36YXZ0A

Run Details

Duration:
45.1s
Cost:
$0.070508
Provider:
Claude Platform on AWS

Model input

System
You are an expert fiction writer. Always keep the following rules in mind: - Write in past tense and use General English spelling, grammar, and colloquialisms/slang. - Write in active voice - Always follow the "show, don't tell" principle. - Avoid adverbs and cliches and overused/commonly used phrases. Aim for fresh and original descriptions. - Convey events and story through dialogue. - Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. - Skip "he/she said said" dialogue tags and convey people's actions or face expressions through their speech - Avoid mushy dialog and descriptions, have dialogue always continue the action, never stall or add unnecessary fluff. Vary the descriptions to not repeat yourself. - Put dialogue on its own paragraph to separate scene and action. - Reduce indicators of uncertainty like "trying" or "maybe" When writing text: - NEVER conclude the scene on your own, follow the beat instructions very closely. - NEVER end with foreshadowing. - NEVER write further than what I prompt you with. - AVOID imagining possible endings, NEVER deviate from the instructions. - STOP EARLY if the continuation contains what was required in the instructions. You do not need to fill out the full amount of words possible.
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <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> Continue the story using the following instructions: <instructions> 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. </instructions>

Model response

AI
The deer stopped chewing when Rory dropped from the wall. There were a dozen of them, clustered under the chestnuts near Sheen Gate, grey shapes against greyer grass. Every head turned her way. She waited for them to bolt the way deer did, all white tails and panic, but they held their ground and watched her with the flat patience of cattle at a slaughterhouse fence. "Evening." She brushed moss off her palms. "Don't mind me." None of them moved. Rory tugged her hood up and set off across the grass. Isolde's note had come folded inside a Golden Empress takeaway bag, wedged between a carton of salt-and-pepper squid and a flattened bag of prawn crackers. Yu-Fei swore she hadn't packed it. The handwriting leaned hard to the left, green ink, the letters looped like bindweed: *Midnight. Come alone. Bring the stone.* No signature. None needed. Only one person Rory knew wrote in green ink and treated full stops like a luxury. The Heartstone sat under her jumper, a thumbnail of crimson against her sternum. For the first mile it stayed cool. Richmond Park at night had none of the orange smear that hung over the rest of London. The dark here had weight. It pooled in the bracken and sat in the dips of the land, and the paths she had walked a hundred times in daylight rearranged themselves into strangers. She kept the Pen Ponds on her left, their surfaces pewter under a clouded moon, and counted her steps to keep her mind from wandering. Four hundred and twelve. Four hundred and thirteen. Somewhere behind her, a twig broke. Rory kept walking. Foxes. Badgers. The deer, finally deciding she was worth following. She counted to twenty, then turned. Empty grass. A bench with a brass plaque she couldn't read in the dark. The deer had gone from under the chestnuts, all of them, and she hadn't heard a single hoof. "Right," she told the bench. "Brilliant." She found the Grove the way Isolde had taught her: not by looking, but by walking toward the place her eyes kept sliding off. A copse of oaks east of the ponds that the maps called nothing at all. Her gaze skated left of it, then right, the way a tongue avoids a mouth ulcer. She fixed on the gap between two trunks and pushed through. The air changed. It always did — a pressure in the ears, like the moment a train enters a tunnel — but tonight it came with a taste. Copper and crushed stems. She swallowed and it stayed on the back of her tongue. The standing stones ringed the clearing, seven slabs of ancient oak so old the wood had gone to something harder than wood, black and ridged and cold to the touch. Wildflowers crowded the grass between them. Foxgloves. Campion. Harebells nodding on stalks thin as hair. In daylight they blazed with colour. Now they stood in ranks of charcoal and bone, and every bloom faced the centre of the clearing, as though a sun burned there that Rory couldn't see. "Isolde?" Her voice went nowhere. No echo, no bounce off the trees. The clearing swallowed it the way wet sand takes a footprint. She checked her phone. 23:58. One bar of signal, flickering. "I got your note. I'm here. Stone and all." The flowers didn't sway. There was no wind — she had felt it on the walk, a thin November breeze nipping at her ears — and yet something rustled in the bracken beyond the stones. A slow, dragging sound. Not footsteps. Something heavy being pulled across leaf litter by something patient. Rory stepped to the centre of the ring and made herself stand still. The rustling stopped. Against her chest, the Heartstone warmed. It started as body heat, nothing more, the kind of warmth a coin picks up in a pocket. Then it climbed. By the time she fished it out on its silver chain, it glowed like a coal banked for the night, and the heat of it pulsed against her fingertips in a slow, steady rhythm. A heartbeat. Not hers. Hers was running twice as fast. "No." She turned a full circle, pendant raised like a torch. "No, no. Not here. You don't open here." The stone had only ever done this twice before. Once in a flooded underpass in Deptford. Once in the cellar beneath Silas' bar, the night the walls had sweated. Both times, something had come through. She looked at the phone. 23:58. She waited. Watched the digits. They didn't change. At the edge of her vision, between the third and fourth stones, a figure stood among the foxgloves. Tall. Narrow. Pale as a peeled branch. It stood with its head bowed and its arms hanging long at its sides, and it did not move, and when Rory snapped her head toward it there was nothing there but flowers and the black gap of the trees. She breathed out through her teeth. Counted the stones. One, two, three, four, five, six, seven. "You're tired," she said. "You've been on the bike since ten this morning. You've had half a spring roll and three coffees. This is what brains do." From the bracken, in a voice she knew better than her own, someone called her name. "Rory?" Eva. Eva's Cardiff lilt, the way she stretched the O, the little upward hook at the end she'd had since they were eight years old and trading stickers in the school yard. Rory's throat locked. "Rory, love, where'd you go? I can't see you." It came from behind the fifth stone. Then, without any sound of movement between, from behind the second. "Eva's in Hackney." Rory kept her voice level, the way her father used to in court when a witness started lying. "She's on nights at the hospital. She texted me at nine to moan about a bloke who swallowed a key." Silence. The flowers leaned inward. "She'd never come here," Rory went on. "She thinks Richmond is for people who own Labradors." "Rory." The voice dropped lower. Softer. "Rory, it's cold. Let me in." The Heartstone pulsed. Hot enough now that she shifted it to her other hand, and the crescent scar on her left wrist throbbed in time with it, a line of ache she hadn't felt since she was six years old and bleeding on her mother's kitchen floor. She should leave. Every sensible cell in her body said so. Walk out the way she'd come, climb the wall, get a night bus, go home and lock the door and sit with her back against it until the sun came up. But Isolde had asked her here. Isolde didn't ask for things. Isolde traded, and bargained, and hinted, and sulked, but she had never once written *come*. If she left, whatever was out there would still be out there. And Isolde would still be missing. Rory turned slowly, keeping the pendant high. The glow painted the nearest flowers a wet, arterial red. The figure stood between the sixth and seventh stones now. Closer. Head still bowed. She could see, in the edge of her sight, that its fingers reached past its knees. She didn't look at it. She looked at the stone beside it instead, and counted again, lips moving. One. Two. Three. Four. Five. Six. Seven. Eight. The eighth stood where no stone had stood a moment ago, directly behind her original path through the trees. It was the same black oak as the others, ridged and ancient, furred with lichen. It rose taller than the rest. And when she held the Heartstone toward it, the light caught on a surface that wasn't bark at all — something smoother, something that shone the way skin shines stretched tight over bone. The phone in her pocket buzzed once. She didn't take her eyes off the eighth stone. She fished the phone out by feel and glanced down for half a second. 23:58. One new message. From Eva. *where are you* When she looked up, the eighth stone had moved a foot closer, and the foxgloves at its base had turned to face her.
created_at"2026-09-23T17:58:26.66Z" 9/23/2026, 5:58:26 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4673
moderation_latency(null)
generation_time44998
tokens_prompt1008
tokens_completion2152
native_tokens_prompt1482
native_tokens_completion3229
native_tokens_completion_images(null)
native_tokens_reasoning575
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"
usage0.070508
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790186306-MkxdZ3rkLSZeds09P9A1"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790186306-8baAWyAjNC2TFjLhs9ML"
upstream_id"msg_011CfLoedP6eRUKo4YrUzh9p"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLoedP6eRUKo4YrUzh9p"
is_byokfalse
latency1343
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.070508
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
totalTags7
adverbTagCount0
adverbTags(empty)
dialogueSentences18
tagDensity0.389
leniency0.778
rawRatio0
effectiveRatio0
96.33% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1361
totalAiIsmAdverbs1
found
0
adverb"slowly"
count1
highlights
0"slowly"
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)
66.94% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1361
totalAiIsms9
found
0
word"weight"
count1
1
word"echo"
count1
2
word"footsteps"
count1
3
word"warmth"
count1
4
word"pulsed"
count2
5
word"lilt"
count1
6
word"silence"
count1
7
word"throbbed"
count1
highlights
0"weight"
1"echo"
2"footsteps"
3"warmth"
4"pulsed"
5"lilt"
6"silence"
7"throbbed"
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
narrationSentences136
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences136
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences147
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen44
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans3
markdownWords10
totalWords1366
ratio0.007
matches
0"Midnight. Come alone. Bring the stone."
1"come"
2"where are you"
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
totalMentions45
wordCount1255
uniqueNames20
maxNameDensity0.88
worstName"Rory"
maxWindowNameDensity2
worstWindowName"Rory"
discoveredNames
Rory11
Sheen1
Gate1
Golden1
Empress1
Heartstone4
Park1
London1
Pen1
Ponds1
Grove1
Isolde6
November1
Deptford1
Cardiff1
Silence1
Softer1
Eva3
Four3
One4
persons
0"Rory"
1"Heartstone"
2"Isolde"
3"Eva"
places
0"Sheen"
1"Golden"
2"Park"
3"London"
4"Deptford"
5"Cardiff"
6"One"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences72
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.732
wordCount1366
matches
0"not by looking, but by walking toward the place her eyes kept sliding off"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences147
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs57
mean23.96
std22.07
cv0.921
sampleLengths
010
156
210
315
471
520
675
78
86
919
1032
116
1266
1343
1479
151
1622
1710
189
1951
2013
213
226
2365
2419
2535
266
278
2818
2947
3016
3127
3216
331
3432
353
369
3718
3841
395
4016
4112
4247
4368
4418
4517
4630
4718
487
491
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences136
matches
0"being pulled"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount1
totalVerbs203
matches
0"was running"
84.55% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount5
semicolonCount0
flaggedSentences3
totalSentences147
ratio0.02
matches
0"It always did — a pressure in the ears, like the moment a train enters a tunnel — but tonight it came with a taste."
1"There was no wind — she had felt it on the walk, a thin November breeze nipping at her ears — and yet something rustled in the bracken beyond the stones."
2"And when she held the Heartstone toward it, the light caught on a surface that wasn't bark at all — something smoother, something that shone the way skin shines stretched tight over bone."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount770
adjectiveStacks0
stackExamples(empty)
adverbCount22
adverbRatio0.02857142857142857
lyAdverbCount3
lyAdverbRatio0.003896103896103896
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences147
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences147
mean9.29
std9.1
cv0.98
sampleLengths
010
118
25
333
47
53
64
711
825
96
1015
112
125
132
1416
1513
167
1717
185
1928
2025
214
224
236
243
251
261
278
286
292
3012
3118
325
331
3424
3515
3616
3711
383
3925
404
4111
4230
436
441
451
467
476
4828
491
71.30% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats14
diversityRatio0.4861111111111111
totalSentences144
uniqueOpeners70
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount6
totalSentences106
matches
0"Only one person Rory knew"
1"Somewhere behind her, a twig"
2"Then it climbed."
3"Once in a flooded underpass"
4"Once in the cellar beneath"
5"Then, without any sound of"
ratio0.057
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount29
totalSentences106
matches
0"She waited for them to"
1"She brushed moss off her"
2"It pooled in the bracken"
3"She kept the Pen Ponds"
4"She counted to twenty, then"
5"she told the bench"
6"She found the Grove the"
7"Her gaze skated left of"
8"She fixed on the gap"
9"It always did — a"
10"She swallowed and it stayed"
11"Her voice went nowhere."
12"She checked her phone."
13"It started as body heat,"
14"Hers was running twice as"
15"She turned a full circle,"
16"She looked at the phone."
17"They didn't change."
18"It stood with its head"
19"She breathed out through her"
ratio0.274
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount72
totalSentences106
matches
0"The deer stopped chewing when"
1"Every head turned her way."
2"She waited for them to"
3"She brushed moss off her"
4"None of them moved."
5"Rory tugged her hood up"
6"Isolde's note had come folded"
7"Yu-Fei swore she hadn't packed"
8"The handwriting leaned hard to"
9"The Heartstone sat under her"
10"Richmond Park at night had"
11"The dark here had weight."
12"It pooled in the bracken"
13"She kept the Pen Ponds"
14"Rory kept walking."
15"The deer, finally deciding she"
16"She counted to twenty, then"
17"A bench with a brass"
18"The deer had gone from"
19"she told the bench"
ratio0.679
100.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount3
totalSentences106
matches
0"Now they stood in ranks"
1"By the time she fished"
2"If she left, whatever was"
ratio0.028
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences45
technicalSentenceCount1
matches
0"And when she held the Heartstone toward it, the light caught on a surface that wasn't bark at all — something smoother, something that shone the way skin shines…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags7
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount0
fancyTags(empty)
dialogueSentences18
tagDensity0.111
leniency0.222
rawRatio0
effectiveRatio0
97.3036%