Run: 2026-05-31-01KSYXD48XPSE36FJC1SRVG89Y

Run Details

Duration:
38.8s
Cost:
$0.058600
Provider:
Anthropic

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 directions Eva had given her made no sense in daylight and even less now, but Rory found the standing stones exactly where the text message claimed they'd be — two ancient oaks at the eastern edge of Richmond Park, their trunks twisted together at the base like clasped hands. Past the cordoned bridle path, past the place where the streetlamps gave up entirely, they rose out of the dark with a presence that made her stop walking. She checked her phone. No signal. The little crescent scar on her left wrist itched, the way it always did when she was nervous, and she pressed her thumb against it until the feeling passed. "This is stupid," she said aloud, mostly to hear a human voice. But Eva had been frightened on the phone. Frightened in a way Rory hadn't heard since the worst of the Evan years, the small flat voice people used when they thought someone might be listening. *Meet me at the grove. Don't tell Silas. Bring the pendant.* And then nothing — three days of nothing — and so here Rory was, twenty past eleven on a Tuesday, stepping between two oaks because her oldest friend had asked her to. The moment she crossed the threshold, the city stopped. That was the only way she could describe it. London never went quiet; even at three in the morning there was the low oceanic hum of it, sirens and trains and the breathing of nine million people. She hadn't realized how much she relied on that sound until it vanished. One step and the traffic noise behind her was simply gone, sheared clean off, as though someone had closed a heavy door. Ahead, a clearing opened where there should have been only more trees. Wildflowers grew thick across it — foxglove, cornflower, things she couldn't name — and they were *blooming*, brilliant and full, in the second week of November. The moon hung fat and low over the treeline, much closer than the moon had any business being, and by its light the petals looked almost wet. "Eva?" Her voice didn't carry. It dropped at her feet like something thrown. Rory stepped into the clearing. The grass was warm. Not the residual warmth of a sun-baked afternoon but a living warmth, like skin, and she found herself walking on the balls of her feet to keep contact brief. The Heartstone Pendant lay cool against her sternum, where it always lay, a small dead weight on its silver chain. Then it pulsed. She felt it through her shirt — a single throb of heat, there and gone, like a heartbeat that wasn't hers. She pressed her hand flat over it. The crimson stone glowed faintly between her fingers, an ember someone had breathed on. "Okay," she whispered. "Okay. Not okay." The pendant only did that near — Eva had been the one to tell her, *near the doorways, the bad ones,* and Rory had laughed and called her dramatic, and now she stood in a field of impossible flowers with a stone going warm against her heart and she was not laughing. She turned a slow circle. The standing stones marked the way she'd come in, two black shapes against the lesser black of the park beyond. She fixed them in her mind. *That way out. Whatever happens, that way out.* A sound came from the far edge of the clearing. Small. The careful displacement of grass under weight. "Eva, if that's you, I swear to God—" The grass stilled. Rory stood very still herself, and listened, and that was when she understood the wrongness had been there all along, underneath, and she'd only just tuned to its frequency. There were no insects. A field like this, warm and blooming, should have been loud with them — crickets, the whine of midges, the rustle of small living things going about their business. Instead the silence had a texture, a held quality, as though the entire grove were a held breath and she stood inside the lungs. The flowers nearest her turned their faces toward her. She blinked. They hadn't moved — surely they hadn't moved — but the foxgloves that had pointed away a moment ago now leaned in her direction, every bell-shaped bloom angled at her like a hundred small ears. She took a step back. The grass shifted under her heel with a sound like a sigh. Movement at the edge of her vision. To the left, between the trees — a pale shape, tall, gone the instant she looked directly at it. Just bark and shadow. Just her eyes inventing shapes in the dark, the way eyes did. The pendant pulsed again, harder. Hot enough now that she winced. "Eva," she said, and hated how thin it came out. "Please." From behind her, where the standing stones were, a voice answered. It used Eva's voice — pitched it perfectly, the slight Essex flatness, the upward lilt at the end — but it spoke from the wrong place, from the way *out*, and it said only her name. "Rory." She did not turn around. Every animal instinct she owned had gone rigid and screaming, and the one thing it screamed was *do not turn around,* because the thing that had said her name was standing exactly where she needed to walk, and it had Eva's voice but Eva had texted from a number that no longer connected and had not been seen in three days, and the flowers were all facing her now, all of them, the whole warm breathing field tilted toward the girl standing in its center. "Rory," it said again, closer. "I've been waiting for ages. Where've you been?" The grass between her and the stones rustled. Something was crossing the clearing toward her, unhurried, and the wildflowers bowed away from its passage in a widening wake she could see but could not see the cause of. Rory's mind, the cool quick part of it that had gotten her out of worse rooms than this, did the arithmetic in half a second. The stones were blocked. The thing wore a friend's voice as easily as a coat. And time moved strangely here — an hour could be a minute, a minute could be days — which meant Eva's three-day silence might have been three of *Rory's* minutes, or three of something else's, and she had walked into the mouth of it carrying the one object it apparently wanted. She closed her hand around the burning pendant. "You're not her," she said. The rustling stopped. And in the silence that followed — vast, patient, alive — the moon dimmed, just slightly, as though something enormous had passed in front of it, and the warm grass beneath her bare-pricked feet began, very gently, to close around her ankles.
created_at"2026-05-31T11:41:14.409Z" 5/31/2026, 11:41:14 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1994
moderation_latency(null)
generation_time38764
tokens_prompt812
tokens_completion1690
native_tokens_prompt1170
native_tokens_completion2110
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"
usage0.0586
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provider_responses
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is_byokfalse
latency1119
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
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api_type"completions"
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upstream_id"msg_01Jx8TfT69dxJy18UNmFKiHu"
total_cost0.0586
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provider_name"Anthropic"
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Evaluation details

Result Evaluator Details Meta Data
0.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags5
adverbTagCount2
adverbTags
0"she said aloud [aloud]"
1"it said again [again]"
dialogueSentences11
tagDensity0.455
leniency0.909
rawRatio0.4
effectiveRatio0.364
77.78% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1125
totalAiIsmAdverbs5
found
0
adverb"very"
count2
1
adverb"perfectly"
count1
2
adverb"slightly"
count1
3
adverb"gently"
count1
highlights
0"very"
1"perfectly"
2"slightly"
3"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)
51.11% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1125
totalAiIsms11
found
0
word"warmth"
count2
1
word"weight"
count2
2
word"pulsed"
count2
3
word"throb"
count1
4
word"silence"
count3
5
word"lilt"
count1
highlights
0"warmth"
1"weight"
2"pulsed"
3"throb"
4"silence"
5"lilt"
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
narrationSentences71
matches
0"was nervous"
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount0
narrationSentences71
filterMatches(empty)
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences77
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen85
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans7
markdownWords32
totalWords1142
ratio0.028
matches
0"Meet me at the grove. Don't tell Silas. Bring the pendant."
1"blooming"
2"near the doorways, the bad ones,"
3"That way out. Whatever happens, that way out."
4"out"
5"do not turn around,"
6"Rory's"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions11
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions24
wordCount1111
uniqueNames11
maxNameDensity0.72
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Eva"
discoveredNames
Eva7
Rory8
Richmond1
Park1
Evan1
Silas1
Tuesday1
November1
Heartstone1
Pendant1
Essex1
persons
0"Eva"
1"Rory"
2"Evan"
3"Silas"
4"Tuesday"
5"Pendant"
places
0"Richmond"
1"Park"
2"Essex"
globalScore1
windowScore1
96.81% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences47
glossingSentenceCount1
matches
0"one object it apparently wanted"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches1
per1kWords0.876
wordCount1142
matches
0"Not the residual warmth of a sun-baked afternoon but a living warmth, like skin"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences77
matches
0"happens, that way"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs35
mean32.63
std28.94
cv0.887
sampleLengths
078
135
212
378
49
572
665
71
812
958
103
1142
126
1352
1439
1518
168
173
1886
199
2054
2142
2211
2311
2447
251
265
2785
2813
2938
3091
318
325
333
3442
90.44% Passive voice overuse
Target: ≤2% passive sentences
passiveCount3
totalSentences71
matches
0"been frightened"
1"been seen"
2"were blocked"
48.48% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount4
totalVerbs176
matches
0"were *blooming"
1"was not laughing"
2"was standing"
3"was crossing"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount17
semicolonCount1
flaggedSentences12
totalSentences77
ratio0.156
matches
0"The directions Eva had given her made no sense in daylight and even less now, but Rory found the standing stones exactly where the text message claimed they'd be — two ancient oaks at the eastern edge of Richmond Park, their trunks twisted together at the base like clasped hands."
1"Bring the pendant.* And then nothing — three days of nothing — and so here Rory was, twenty past eleven on a Tuesday, stepping between two oaks because her oldest friend had asked her to."
2"London never went quiet; even at three in the morning there was the low oceanic hum of it, sirens and trains and the breathing of nine million people."
3"Wildflowers grew thick across it — foxglove, cornflower, things she couldn't name — and they were *blooming*, brilliant and full, in the second week of November."
4"She felt it through her shirt — a single throb of heat, there and gone, like a heartbeat that wasn't hers."
5"The pendant only did that near — Eva had been the one to tell her, *near the doorways, the bad ones,* and Rory had laughed and called her dramatic, and now she stood in a field of impossible flowers with a stone going warm against her heart and she was not laughing."
6"A field like this, warm and blooming, should have been loud with them — crickets, the whine of midges, the rustle of small living things going about their business."
7"They hadn't moved — surely they hadn't moved — but the foxgloves that had pointed away a moment ago now leaned in her direction, every bell-shaped bloom angled at her like a hundred small ears."
8"To the left, between the trees — a pale shape, tall, gone the instant she looked directly at it."
9"It used Eva's voice — pitched it perfectly, the slight Essex flatness, the upward lilt at the end — but it spoke from the wrong place, from the way *out*, and it said only her name."
10"And time moved strangely here — an hour could be a minute, a minute could be days — which meant Eva's three-day silence might have been three of *Rory's* minutes, or three of something else's, and she had walked into the mouth of it carrying the one object it apparently wanted."
11"And in the silence that followed — vast, patient, alive — the moon dimmed, just slightly, as though something enormous had passed in front of it, and the warm grass beneath her bare-pricked feet began, very gently, to close around her ankles."
90.75% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1098
adjectiveStacks1
stackExamples
0"lay cool against her"
adverbCount48
adverbRatio0.04371584699453552
lyAdverbCount19
lyAdverbRatio0.017304189435336976
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences77
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences77
mean14.83
std15.07
cv1.016
sampleLengths
050
128
24
32
429
512
68
727
85
93
1035
119
129
1328
1413
1522
1612
1726
1827
191
204
218
225
234
2429
2520
263
2721
287
2914
303
313
3252
335
3420
356
363
375
3810
391
407
418
423
4329
444
4529
4624
479
482
4935
79.22% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats4
diversityRatio0.5064935064935064
totalSentences77
uniqueOpeners39
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount4
totalSentences66
matches
0"Then it pulsed."
1"Instead the silence had a"
2"Just bark and shadow."
3"Just her eyes inventing shapes"
ratio0.061
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount16
totalSentences66
matches
0"She checked her phone."
1"she said aloud, mostly to"
2"She hadn't realized how much"
3"Her voice didn't carry."
4"It dropped at her feet"
5"She felt it through her"
6"She pressed her hand flat"
7"She turned a slow circle."
8"She fixed them in her"
9"They hadn't moved — surely"
10"She took a step back."
11"she said, and hated how"
12"It used Eva's voice —"
13"She did not turn around."
14"it said again, closer"
15"She closed her hand around"
ratio0.242
100.00% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount47
totalSentences66
matches
0"The directions Eva had given"
1"She checked her phone."
2"The little crescent scar on"
3"she said aloud, mostly to"
4"The moment she crossed the"
5"That was the only way"
6"London never went quiet; even"
7"She hadn't realized how much"
8"Wildflowers grew thick across it"
9"The moon hung fat and"
10"Her voice didn't carry."
11"It dropped at her feet"
12"Rory stepped into the clearing."
13"The grass was warm."
14"The Heartstone Pendant lay cool"
15"She felt it through her"
16"She pressed her hand flat"
17"The crimson stone glowed faintly"
18"The pendant only did that"
19"She turned a slow circle."
ratio0.712
75.76% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount1
totalSentences66
matches
0"To the left, between the"
ratio0.015
12.99% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences33
technicalSentenceCount6
matches
0"She felt it through her shirt — a single throb of heat, there and gone, like a heartbeat that wasn't hers."
1"They hadn't moved — surely they hadn't moved — but the foxgloves that had pointed away a moment ago now leaned in her direction, every bell-shaped bloom angled …"
2"Every animal instinct she owned had gone rigid and screaming, and the one thing it screamed was *do not turn around,* because the thing that had said her name w…"
3"Rory's mind, the cool quick part of it that had gotten her out of worse rooms than this, did the arithmetic in half a second."
4"And time moved strangely here — an hour could be a minute, a minute could be days — which meant Eva's three-day silence might have been three of *Rory's* minute…"
5"And in the silence that followed — vast, patient, alive — the moon dimmed, just slightly, as though something enormous had passed in front of it, and the warm g…"
25.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags5
uselessAdditionCount1
matches
0"it said again, closer"
59.09% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags5
fancyCount1
fancyTags
0"she whispered (whisper)"
dialogueSentences11
tagDensity0.455
leniency0.909
rawRatio0.2
effectiveRatio0.182
80.2475%