Run: 2026-05-29-01KSSK2WCMCYJQ6W1DQHWE8CWA

Run Details

Duration:
40.6s
Cost:
$0.058150
Provider:
Anthropic

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 standing stones came into view just as the last of the daylight bled out of the sky. Five of them, gnarled oak trunks petrified into something harder than wood, ringing a clearing that no map of Richmond Park acknowledged. Rory pressed her palm against the nearest one and felt the cold travel up her arm. "In and out," she told herself. "Find the thing, leave." The Heartstone hung against her sternum, a dull weight. Eva had sworn the pendant would warm near anything worth fearing. So far it stayed cool, which should have settled her, and somehow didn't. She stepped between two of the stones. The temperature changed. Not gradually — all at once, like crossing a threshold into a room someone had left the windows open in. Wildflowers carpeted the grove, white and violet and a blue that had no business blooming in November. They glowed faintly, catching a moonlight that arrived from no moon she could find overhead. "Right," she murmured. "Pretty. Lovely. Where's the bloody well." Eva had described a wellhead at the centre, old stone, a place where the boundary between here and elsewhere ran thin. Rory needed water drawn from it. That was the whole errand. A favour for a friend, repaid with a favour she couldn't refuse. She picked her way across the clearing. The flowers brushed her shins, releasing a scent like cut grass and something underneath it, sweeter and wrong, the smell of fruit a day past ripe. Behind her, a sound. She turned. The stones stood where she'd left them. The grass between them swayed, though no wind touched her face. "Hello?" Her voice didn't carry the way it should have. It dropped flat at her feet, swallowed before it could reach the treeline. She tried again, louder, and the second word came out smaller than the first. The well sat ahead, just visible — a low circle of pale stone, a wooden frame slumped over it. She made for it and kept her eyes forward, because forward was the only direction that felt safe, and she'd learned long ago not to question why a thing felt safe when nothing around it did. Twenty paces. Fifteen. A laugh. She stopped. It had come from the left, soft and high, the laugh of a child delighted by a secret. She knew there were no children here. She knew it the way she knew her own name, and still her head turned toward it. Nothing. Flowers. The dark margin where the grove gave way to trees that hadn't been there when she arrived — she was nearly sure of that, nearly, and the uncertainty was worse than any tree. The pendant remained cool. "Eva, I swear to God." Rory reached the well. The stone was damp under her hands, slick with a film that wasn't quite moss. She leaned over the lip and looked down into black that gave nothing back. No glint of water. No echo when she dropped a pebble from her pocket and counted — one, two, three, four — and never heard it land. She unhooked the rope from the frame. A bucket dangled at the end, older than the rest, its iron bands eaten thin with rust. She lowered it. The laugh came again. Closer. Behind her now. She didn't turn. She fed the rope down hand over hand and watched her knuckles and breathed through her teeth. "You're not real," she said. "You're a noise. Noises don't hurt people." Something exhaled against the back of her neck. She spun. The bucket dropped, rope hissing through her palms, burning a line across both before she clamped down and stopped it. There was nothing behind her. The grove stretched empty and luminous, and the flowers near her feet had bent flat, a path of crushed stems leading from the treeline to where she stood, as though something had walked the route she watched and left only its passage behind. The breath came again. Closer to her ear this time. No warmth to it. Cold as the stones. "I can hear you," she whispered. "I know you're there." A voice answered, and the voice used her mother's cadence, the lilt Jennifer Carter put on the ends of her sentences when she was tired and forgetting to hide it. "Aurora. You've come such a long way, love." Her stomach turned to water. Her mother was in Cardiff. Her mother had never set foot in this place and never would. "That's not going to work," Rory said, and was proud her voice held. "I know what you are. You're using what's in my head. Stop it." The voice laughed, and it wasn't her mother's anymore, and it wasn't the child's. It was something that had borrowed both and discarded them, settling now into a register that scraped at the base of her skull. "Then I'll use what's in front of you instead." The flowers went dark. All of them, at once, the glow snuffed like a hand closing over a candle, and the false moonlight with them. Black poured into the grove. Rory's eyes strained and found nothing, no stones, no well, no path — only the rope still clenched in her bleeding hands, the one solid thing tethering her to the fact that she had a body and the body was here. Movement, everywhere. The grass shifted in a hundred places at once. Soft sounds, deliberate, circling. Not one of them. Many. The pendant against her chest flared to life. It seared, sudden and fierce, a coal pressed to her skin, and the pain of it cut clean through the fog the grove had laid over her thoughts. She gasped and clutched it and the crimson light leaked between her fingers, painting the dark in front of her in a thin red wash. In that light she saw them. They stood at the edge of the well's reach, a ring of figures the height of children, thin as winter branches, their faces turned toward her and entirely without features — smooth as the inside of an eggshell where eyes and mouths should have been. They did not move while the light touched them. They simply waited, patient, the way water waits behind a dam. "Eva," Rory breathed, backing against the wellstone, the rope cutting deeper into her palms. "Eva, what did you send me into." The nearest figure tilted its blank head, and the grass behind it whispered as more of them came through the trees.
created_at"2026-05-29T10:04:40.735Z" 5/29/2026, 10:04:40 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2927
moderation_latency(null)
generation_time40554
tokens_prompt1038
tokens_completion1619
native_tokens_prompt1480
native_tokens_completion2030
native_tokens_completion_images(null)
native_tokens_reasoning45
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"
usage0.05815
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01Fit44iTm6PnUyJjrhb57fu"
is_byokfalse
latency1801
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780049080-nlq2eVcJtxd0vw8ct1vh"
session_id(null)
api_type"completions"
id"gen-1780049080-o3tefCxEQ0zLckYsVIjL"
upstream_id"msg_01Fit44iTm6PnUyJjrhb57fu"
total_cost0.05815
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags6
adverbTagCount0
adverbTags(empty)
dialogueSentences16
tagDensity0.375
leniency0.75
rawRatio0
effectiveRatio0
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1079
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
72.20% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1079
totalAiIsms6
found
0
word"weight"
count1
1
word"glint"
count1
2
word"echo"
count1
3
word"warmth"
count1
4
word"lilt"
count1
5
word"stomach"
count1
highlights
0"weight"
1"glint"
2"echo"
3"warmth"
4"lilt"
5"stomach"
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
emotionTells1
narrationSentences88
matches
0"was proud"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences88
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences98
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen44
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1086
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions9
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions15
wordCount1005
uniqueNames9
maxNameDensity0.6
worstName"Rory"
maxWindowNameDensity1
worstWindowName"Eva"
discoveredNames
Richmond1
Park1
Heartstone1
November1
Eva2
Jennifer1
Carter1
Cardiff1
Rory6
persons
0"Heartstone"
1"Eva"
2"Jennifer"
3"Carter"
4"Rory"
places
0"Richmond"
1"Park"
2"November"
3"Cardiff"
globalScore1
windowScore1
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences53
glossingSentenceCount1
matches
0"quite moss"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1086
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences98
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs42
mean25.86
std20.55
cv0.795
sampleLengths
056
110
233
37
455
59
644
733
84
920
101
1136
1255
133
142
1544
1635
174
185
1960
2027
218
2220
2312
248
2570
2618
2710
2830
298
3022
3126
3237
339
3471
3520
368
3753
386
3965
4021
4121
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences88
matches(empty)
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs172
matches(empty)
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount7
semicolonCount0
flaggedSentences6
totalSentences98
ratio0.061
matches
0"Not gradually — all at once, like crossing a threshold into a room someone had left the windows open in."
1"The well sat ahead, just visible — a low circle of pale stone, a wooden frame slumped over it."
2"The dark margin where the grove gave way to trees that hadn't been there when she arrived — she was nearly sure of that, nearly, and the uncertainty was worse than any tree."
3"No echo when she dropped a pebble from her pocket and counted — one, two, three, four — and never heard it land."
4"Rory's eyes strained and found nothing, no stones, no well, no path — only the rope still clenched in her bleeding hands, the one solid thing tethering her to the fact that she had a body and the body was here."
5"They stood at the edge of the well's reach, a ring of figures the height of children, thin as winter branches, their faces turned toward her and entirely without features — smooth as the inside of an eggshell where eyes and mouths should have been."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount998
adjectiveStacks0
stackExamples(empty)
adverbCount28
adverbRatio0.028056112224448898
lyAdverbCount9
lyAdverbRatio0.009018036072144289
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences98
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences98
mean11.08
std9.66
cv0.872
sampleLengths
018
122
216
36
44
59
611
713
87
93
1020
1117
1215
133
146
1521
166
175
1812
197
2026
214
222
237
2411
251
269
2713
2814
2919
3036
312
321
332
342
3518
367
3717
381
391
4033
414
425
434
4415
4514
464
4723
487
4917
49.66% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats13
diversityRatio0.37755102040816324
totalSentences98
uniqueOpeners37
45.05% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences74
matches
0"So far it stayed cool,"
ratio0.014
84.86% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount25
totalSentences74
matches
0"she told herself"
1"She stepped between two of"
2"They glowed faintly, catching a"
3"She picked her way across"
4"Her voice didn't carry the"
5"It dropped flat at her"
6"She tried again, louder, and"
7"She made for it and"
8"It had come from the"
9"She knew there were no"
10"She knew it the way"
11"She leaned over the lip"
12"She unhooked the rope from"
13"She lowered it."
14"She didn't turn."
15"She fed the rope down"
16"Her stomach turned to water."
17"Her mother was in Cardiff."
18"Her mother had never set"
19"It was something that had"
ratio0.338
68.11% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount58
totalSentences74
matches
0"The standing stones came into"
1"Rory pressed her palm against"
2"she told herself"
3"The Heartstone hung against her"
4"Eva had sworn the pendant"
5"She stepped between two of"
6"The temperature changed."
7"Wildflowers carpeted the grove, white"
8"They glowed faintly, catching a"
9"Eva had described a wellhead"
10"Rory needed water drawn from"
11"That was the whole errand."
12"A favour for a friend,"
13"She picked her way across"
14"The flowers brushed her shins,"
15"The stones stood where she'd"
16"The grass between them swayed,"
17"Her voice didn't carry the"
18"It dropped flat at her"
19"She tried again, louder, and"
ratio0.784
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences74
matches(empty)
ratio0
84.94% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences37
technicalSentenceCount3
matches
0"She made for it and kept her eyes forward, because forward was the only direction that felt safe, and she'd learned long ago not to question why a thing felt sa…"
1"The bucket dropped, rope hissing through her palms, burning a line across both before she clamped down and stopped it."
2"The grove stretched empty and luminous, and the flowers near her feet had bent flat, a path of crushed stems leading from the treeline to where she stood, as th…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags6
uselessAdditionCount0
matches(empty)
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags6
fancyCount3
fancyTags
0"she murmured (murmur)"
1"she whispered (whisper)"
2"Rory breathed (breathe)"
dialogueSentences16
tagDensity0.375
leniency0.75
rawRatio0.5
effectiveRatio0.375
83.4939%