Run: 2026-06-01-01KT1HREZKD8FQXJBPNEKFD83J

Run Details

Duration:
37.5s
Cost:
$0.056400
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 rose out of the dark like teeth, and Aurora stepped between them with her phone torch held low. She'd come for answers. That was what she told herself on the train to Richmond, what she repeated walking the bridle path past curfew, climbing the fence the wardens had locked at dusk. Eva's voicemail had been three words before the line cut out — *the grove knows* — and the Heartstone pendant had warmed against her sternum the moment she'd boarded the train. It still pulsed now, a slow thud beneath her shirt, out of step with her own heart. The clearing opened ahead. Wildflowers in February, pale as bone in the torchlight, swaying though there was no wind. "Eva?" Her voice came back flat. No echo. The trees ate it. She knew this place. She'd been here twice before, in daylight, with Eva chattering at her elbow and the air sweet with something that wasn't quite honey. It had felt impossible then, but kind. A secret with soft edges. It did not feel kind now. Aurora moved into the centre, boots whispering through grass that should have crunched with frost. The cold pressed at her, but the ground beneath was warm, almost feverish, as though something large slept just below the soil. She crouched and pressed her palm flat to the earth. It pulsed. Once. Against her hand. She stood up fast. "Right," she breathed. "Don't be daft." The torchlight caught the far line of trees, and she swept it slowly along the treeline, counting trunks the way she'd count exits in a room — old habit, a barrister's daughter's habit, an ex-girlfriend-of-a-bad-man's habit. Oak. Oak. A gap. Oak. The gap had not been there a second ago. She was almost certain. She held the beam on it. Nothing. Just dark between two trunks, the kind of dark that didn't lighten no matter how long you stared. The longer she looked, the more she felt it looking back, a pressure behind her eyes like the start of a migraine. Something moved at the right edge of her vision. She snapped the torch toward it. Empty grass. Flowers nodding. "Eva, if this is you—" She stopped. Her own breath had gone loud in her ears. "If this is you, I'm going to be very cross." The flowers stilled. All of them, at once, as if a hand had passed over the clearing and pressed them flat to attention. The fever-warmth under her boots climbed to her ankles. The pendant against her chest had gone from a pulse to a steady burn, and she fumbled it out from under her collar. The crimson gem glowed bright enough to throw red across her knuckles. *Pulses faintly with warmth when near a Hel portal.* That was the line. That was what the note had said when she'd first been handed the thing by a stranger with no face she could afterward remember. She'd dismissed it as superstition. A pretty trinket and a riddle. It wasn't pretty now. It was hot enough to hurt. A sound started behind her. Low. Wet. The drag of something heavy through grass, slow and patient, the way you'd haul a sack you were in no hurry to deliver. Aurora turned. The torch found nothing but the parted grass — a single dark furrow cut through the meadow, trailing from the gap in the trees to a point perhaps ten feet from where she stood. The furrow ended in open air. Whatever had made it was simply not there. "Okay." Her voice cracked on it. She wet her lips. "Okay. I'm leaving. I heard you. I'm going home." She backed toward the standing stones. One step. Two. The grove seemed to lengthen around her, the gap between her and the boundary stretching wider than the small clearing could possibly hold. The trees leaned. Time inside the grove ran wrong — Eva had warned her, laughing, an hour can be a minute or it can be three days — and Aurora felt it now in her bones, that the dark had been going on too long, that dawn might be a week away or might never come at all. A whisper threaded through the trees. Not words. The shape of words, the rhythm of them, in a voice she half recognised. "Rory." She froze. Eva's voice. From the gap in the trees. "Rory, it's cold out here." It was perfect. The Cardiff lilt, the way Eva drew out her name. And it was wrong, every bit of it wrong, because it came from the black between the oaks where no breath had fogged, where the air did not move, where her torchlight died at the threshold and went no further. "You're not her," Aurora said. The whisper laughed. Soft. Delighted. The sound of someone who'd waited a very long time and had all the patience left in the world. The flowers turned. She watched them do it — every white face rotating on its stem to point not at her, but at the space just over her left shoulder. Where the warmth was. Where the breath now stirred the fine hairs at the back of her neck, slow and damp and smelling of wet copper and turned earth. Aurora did not turn around. She had learned that much from Evan, from years of reading a room before stepping into it: you did not turn to face the thing that wanted you to face it. You moved. She gripped the pendant until the burn became something she could use, a point to hold onto, and she ran. The stones were further than they should have been. The grass clutched at her ankles. Behind her the dragging sound quickened, no longer patient, the wet rhythm closing the gap, and Eva's voice — Eva's beautiful, borrowed voice — rose into something that had never been human at all, a note that climbed past hearing and lodged behind her teeth. The pendant flared white-hot. The first standing stone loomed up out of the dark, and Aurora threw herself toward the gap between them, and the breath at her neck became a cold that was almost a hand.
created_at"2026-06-01T12:15:26.201Z" 6/1/2026, 12:15:26 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2180
moderation_latency(null)
generation_time37464
tokens_prompt1038
tokens_completion1521
native_tokens_prompt1480
native_tokens_completion1960
native_tokens_completion_images(null)
native_tokens_reasoning41
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"
usage0.0564
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01GkC4Z1Btur3BwTAkS6KJU6"
is_byokfalse
latency1094
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-1780316126-T14QQiXbek0Glv5EgVAc"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780316126-LBdRlk9dDBVBkgj9vVqq"
upstream_id"msg_01GkC4Z1Btur3BwTAkS6KJU6"
total_cost0.0564
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
totalTags4
adverbTagCount0
adverbTags(empty)
dialogueSentences10
tagDensity0.4
leniency0.8
rawRatio0
effectiveRatio0
85.38% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1026
totalAiIsmAdverbs3
found
0
adverb"slowly"
count1
1
adverb"very"
count2
highlights
0"slowly"
1"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)
36.65% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1026
totalAiIsms13
found
0
word"pulsed"
count2
1
word"echo"
count1
2
word"warmth"
count3
3
word"pulse"
count1
4
word"whisper"
count2
5
word"perfect"
count1
6
word"lilt"
count1
7
word"quickened"
count1
8
word"loomed"
count1
highlights
0"pulsed"
1"echo"
2"warmth"
3"pulse"
4"whisper"
5"perfect"
6"lilt"
7"quickened"
8"loomed"
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
narrationSentences95
matches
0"y with warmth"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount1
narrationSentences95
filterMatches(empty)
hedgeMatches
0"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences101
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen53
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans2
markdownWords12
totalWords1035
ratio0.012
matches
0"the grove knows"
1"Pulses faintly with warmth when near a Hel portal."
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions4
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions23
wordCount996
uniqueNames9
maxNameDensity0.7
worstName"Aurora"
maxWindowNameDensity1.5
worstWindowName"Aurora"
discoveredNames
Aurora7
Richmond1
Heartstone1
February1
Eva7
Hel1
Cardiff1
Evan1
Oak3
persons
0"Aurora"
1"Eva"
2"Evan"
places
0"Richmond"
1"February"
2"Hel"
3"Cardiff"
globalScore1
windowScore1
97.92% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences48
glossingSentenceCount1
matches
0"quite honey"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.966
wordCount1035
matches
0"not at her, but at the space just over her left shoulder"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences101
matches
0"learned that much"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs40
mean25.88
std24.1
cv0.932
sampleLengths
021
181
219
31
411
539
66
747
86
94
106
1141
1213
1347
149
1510
1626
173
1864
199
2039
2110
2266
236
248
2519
2690
2722
281
2910
305
3153
325
3324
3459
355
3653
3760
384
3933
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences95
matches
0"been handed"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs156
matches(empty)
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount9
semicolonCount0
flaggedSentences6
totalSentences101
ratio0.059
matches
0"Eva's voicemail had been three words before the line cut out — *the grove knows* — and the Heartstone pendant had warmed against her sternum the moment she'd boarded the train."
1"The torchlight caught the far line of trees, and she swept it slowly along the treeline, counting trunks the way she'd count exits in a room — old habit, a barrister's daughter's habit, an ex-girlfriend-of-a-bad-man's habit."
2"The torch found nothing but the parted grass — a single dark furrow cut through the meadow, trailing from the gap in the trees to a point perhaps ten feet from where she stood."
3"Time inside the grove ran wrong — Eva had warned her, laughing, an hour can be a minute or it can be three days — and Aurora felt it now in her bones, that the dark had been going on too long, that dawn might be a week away or might never come at all."
4"She watched them do it — every white face rotating on its stem to point not at her, but at the space just over her left shoulder."
5"Behind her the dragging sound quickened, no longer patient, the wet rhythm closing the gap, and Eva's voice — Eva's beautiful, borrowed voice — rose into something that had never been human at all, a note that climbed past hearing and lodged behind her teeth."
100.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount989
adjectiveStacks0
stackExamples(empty)
adverbCount29
adverbRatio0.029322548028311426
lyAdverbCount4
lyAdverbRatio0.004044489383215369
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences101
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences101
mean10.25
std11.02
cv1.076
sampleLengths
021
14
229
331
417
54
615
71
85
92
104
114
1223
137
145
156
1615
1722
1810
192
201
213
224
233
243
2536
261
271
282
291
309
314
326
331
3418
3522
369
376
382
392
407
419
4210
433
4420
459
4623
4712
489
494
51.49% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats13
diversityRatio0.38613861386138615
totalSentences101
uniqueOpeners39
46.95% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences71
matches
0"Just dark between two trunks,"
ratio0.014
90.42% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount23
totalSentences71
matches
0"She'd come for answers."
1"It still pulsed now, a"
2"Her voice came back flat."
3"She knew this place."
4"She'd been here twice before,"
5"It had felt impossible then,"
6"It did not feel kind"
7"She crouched and pressed her"
8"She stood up fast."
9"She was almost certain."
10"She held the beam on"
11"She snapped the torch toward"
12"Her own breath had gone"
13"She'd dismissed it as superstition."
14"It wasn't pretty now."
15"It was hot enough to"
16"Her voice cracked on it"
17"She wet her lips."
18"She backed toward the standing"
19"It was perfect."
ratio0.324
23.38% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount62
totalSentences71
matches
0"The standing stones rose out"
1"She'd come for answers."
2"That was what she told"
3"Eva's voicemail had been three"
4"It still pulsed now, a"
5"The clearing opened ahead."
6"Wildflowers in February, pale as"
7"Her voice came back flat."
8"The trees ate it."
9"She knew this place."
10"She'd been here twice before,"
11"It had felt impossible then,"
12"A secret with soft edges."
13"It did not feel kind"
14"Aurora moved into the centre,"
15"The cold pressed at her,"
16"She crouched and pressed her"
17"She stood up fast."
18"The torchlight caught the far"
19"The gap had not been"
ratio0.873
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences71
matches(empty)
ratio0
50.69% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences31
technicalSentenceCount4
matches
0"She'd been here twice before, in daylight, with Eva chattering at her elbow and the air sweet with something that wasn't quite honey."
1"The cold pressed at her, but the ground beneath was warm, almost feverish, as though something large slept just below the soil."
2"All of them, at once, as if a hand had passed over the clearing and pressed them flat to attention."
3"Behind her the dragging sound quickened, no longer patient, the wet rhythm closing the gap, and Eva's voice — Eva's beautiful, borrowed voice — rose into someth…"
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags4
uselessAdditionCount0
matches(empty)
50.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags2
fancyCount1
fancyTags
0"she breathed (breathe)"
dialogueSentences10
tagDensity0.2
leniency0.4
rawRatio0.5
effectiveRatio0.2
81.0957%