Run: 2026-02-19-01KHTRHGZ2HRKV7HC6QN1ZETGN

Run Details

Duration:
36.2s
Cost:
$0.030393
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
Rory shivered as she stepped between the ancient oak standing stones, their twisted silhouettes like sentinels against the fading twilight. The Heartstone Pendant hung warm against her breastbone, pulsing with a gentle rhythm that matched neither her heartbeat nor any natural cadence she recognized. "Isolde?" she called, her voice falling flat in the unnatural stillness of the grove. No answer came, only the whisper of leaves though no breeze stirred the autumn air. Richmond Park had emptied hours ago, the last dog-walkers and joggers departing as darkness crept across London. No one would disturb her here. No one would hear her, either. She fingered the crimson stone at her throat. The unknown sender's note had been specific: Bring the pendant to the grove at midnight. Come alone if you want answers. After weeks of unexplained phenomena following her acquisition of the Heartstone, Rory was desperate enough to comply. The full moon provided enough illumination to navigate the clearing, bathing the wildflowers in silver. Wildflowers that shouldn't be blooming in October. Rory checked her watch—11:47. Early, but better than late. She settled onto a fallen log at the clearing's center, pulling her jacket tighter against the unnatural chill. Time passed strangely in the waiting. Her watch read 11:52 for what felt like twenty minutes, then suddenly jumped to 11:59. The pendant's warmth intensified, its crimson glow strengthening until it cast her hands in blood-red light. Midnight arrived. Nothing happened. Rory stood, turning slowly to scan the grove. "I'm here," she called. "I brought what you asked for." The sound that answered wasn't human. A soft clicking, like pebbles knocked together, emanated from beyond the standing stones. Rory's muscles tensed. The clicking moved, circling the perimeter of the grove. "Who's there?" Her voice sounded thin, vulnerable. The clicking stopped. She inhaled deeply, struggling to maintain the cool-headed rationality that had always been her strength. "Look, if this is some kind of joke, it's not funny. Eva, if that's you—" Something rustled in the underbrush behind her. Rory spun, but saw nothing beyond the silvered foliage. The Heartstone pulsed faster against her skin. "Show yourself," she demanded, forcing steel into her voice despite the fear constricting her throat. The grove remained silent, but the silence itself had changed—become attentive, as if the darkness were listening. The wildflowers, which had been gently wavering despite the lack of wind, went perfectly still. Rory glanced at her watch. 12:07. She should leave, return to her flat above Silas' bar, forget this foolishness. But the pendant caller had promised answers, and after weeks of sleepless nights and inexplicable occurrences, she needed those answers desperately. A twig snapped to her left. She turned sharply but saw only shadows between the trees. "Last chance," she called. "Either show yourself or I'm leaving." The clicking resumed, closer this time, accompanied by a new sound—a wet, sliding noise that raised gooseflesh along her arms. Something moved at the edge of her vision, a darkness deeper than the surrounding night. When she turned to face it directly, it vanished. The Heartstone's pulsing quickened, its heat almost uncomfortable against her skin. Rory grasped it, intending to remove the chain from around her neck, but the moment her fingers touched the crimson stone, images flashed behind her eyes—twisted pathways, a sky the color of bruises, creatures with too many joints moving in ways that defied physical laws. She gasped, releasing the pendant, and the visions ceased. But the damage had been done. Something had noticed her. Something was approaching. The undergrowth rustled again, more deliberately this time. Rory backed toward the nearest standing stone, her hand fumbling in her pocket for her phone. The screen lit, showing no service bars. Of course. She switched on the flashlight instead, aiming it toward the sound. The beam caught nothing but swaying ferns and wildflowers, bending as if something had just passed through them. She swept the light in an arc, searching. "This isn't funny anymore," she said, her voice steadier than she felt. "I came here in good faith." From directly behind her came a sound like wet cloth tearing. Rory whirled, flashlight beam cutting through the darkness, and screamed. Nothing was there. Nothing she could see. But something touched her—a cold, damp pressure against the back of her neck. She stumbled forward, dropping her phone. The light spun crazily as it fell, briefly illuminating something impossible—a patch of darkness that bent wrong, that had depth and substance but no definable shape. The flashlight went out when the phone hit the ground. Rory scrambled after it, fingers scrabbling in the dirt and grass. The clicking surrounded her now, coming from multiple directions at once. When her hand finally closed around her phone, the screen was cracked, the flashlight function dead. The moon chose that moment to slide behind a cloud, plunging the grove into near-total darkness. Only the crimson glow of the Heartstone provided any illumination, pulsing frantically now like a terrified heart. "What do you want?" she whispered, backing toward where she thought the entrance to the grove might be. Her shoulder blades touched something solid. A standing stone, she thought, until it yielded slightly beneath her weight, with the consistency of cold meat. Rory jerked away, spinning to face whatever she had touched. In the faint red light of the pendant, she saw nothing but open air. Yet the clicking came from exactly that spot, accompanied by the wet, sliding sound that now reminded her horribly of a tongue moving over teeth. The Heartstone flared, its light momentarily brightening. In that flash, Rory caught a glimpse of what stood before her—a suggestion of limbs that bent backward, of a face with too many eyes, of a mouth that opened sideways. Then darkness again, and the certainty that it was reaching for her. Rory turned and ran, no longer caring about direction, only escape. Branches whipped her face, roots caught at her feet. The clicking followed, faster than she could run, gaining with every second. The pendant bounced against her chest, its light stuttering like a faulty emergency beacon. She crashed through undergrowth, heart hammering, lungs burning. Something snagged her jacket—a branch, please let it be a branch—and she tore free, leaving fabric behind. The standing stones loomed ahead, their silhouettes a promise of escape if she could just reach them, cross back to the normal world. The clicking was right behind her, the wet sounds almost at her ear. Something cold brushed her cheek. The Heartstone burned against her skin, no longer pulsing but emitting a continuous, desperate glow. Rory lunged for the gap between the nearest stones, feeling resistance as she passed through, as if crossing a membrane. Behind her, the clicking rose to a frantic crescendo, then cut off abruptly. She stumbled onto the ordinary path of Richmond Park, gasping for breath. Normal darkness surrounded her—darkness pierced by distant streetlights, by the glow of London's skyline reflected in low clouds. Her watch read 3:17 AM. The pendant had gone cold against her skin. When she touched it, she felt nothing but smooth stone. Whatever connection it had made was broken—or dormant. Rory glanced back. Between the standing stones, the grove looked perfectly ordinary. No movement disturbed its shadows, no sounds emerged from its depths. Yet she knew with absolute certainty that something waited there, just beyond her perception. And that it had gotten what it wanted.
created_at"2026-02-19T10:53:43.27Z" 2/19/2026, 10:53:43 AM
model"anthropic/claude-3-7-sonnet-20250219"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency521
moderation_latency(null)
generation_time36178
tokens_prompt1038
tokens_completion2016
native_tokens_prompt1046
native_tokens_completion1817
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)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.030393
router(null)
provider_responses
0
endpoint_id"1347c8dc-12f5-47df-8355-3ec7e80a8c67"
id"msg_01H4yCL7URWpai1koPJppCXc"
is_byokfalse
latency519
model_permaslug"anthropic/claude-3-7-sonnet-20250219"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771498423-RFeNjewLxwymyXG4gRfC"
upstream_id"msg_01H4yCL7URWpai1koPJppCXc"
total_cost0.030393
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags8
adverbTagCount0
adverbTags(empty)
dialogueSentences11
tagDensity0.727
leniency1
rawRatio0
effectiveRatio0
67.97% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1249
totalAiIsmAdverbs8
found
0
adverb"suddenly"
count1
1
adverb"slowly"
count1
2
adverb"gently"
count1
3
adverb"perfectly"
count2
4
adverb"sharply"
count1
5
adverb"deliberately"
count1
6
adverb"slightly"
count1
highlights
0"suddenly"
1"slowly"
2"gently"
3"perfectly"
4"sharply"
5"deliberately"
6"slightly"
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)
47.96% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1249
totalAiIsms13
found
0
word"sentinels"
count1
1
word"whisper"
count1
2
word"navigate"
count1
3
word"chill"
count1
4
word"warmth"
count1
5
word"pulsed"
count1
6
word"silence"
count1
7
word"wavering"
count1
8
word"quickened"
count1
9
word"weight"
count1
10
word"beacon"
count1
11
word"loomed"
count1
12
word"depths"
count1
highlights
0"sentinels"
1"whisper"
2"navigate"
3"chill"
4"warmth"
5"pulsed"
6"silence"
7"wavering"
8"quickened"
9"weight"
10"beacon"
11"loomed"
12"depths"
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
narrationSentences105
matches
0"was desperate"
88.44% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount4
hedgeCount0
narrationSentences105
filterMatches
0"watch"
hedgeMatches(empty)
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences109
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
maxSentenceWordsSeen46
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1234
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions8
unquotedAttributions0
matches(empty)
82.15% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions32
wordCount1179
uniqueNames8
maxNameDensity1.36
worstName"Rory"
maxWindowNameDensity2.5
worstWindowName"Rory"
discoveredNames
Heartstone7
Pendant1
Park2
London2
Bring1
Rory16
October1
Richmond2
persons
0"Heartstone"
1"Pendant"
2"Rory"
places
0"Park"
1"London"
2"October"
3"Richmond"
globalScore0.821
windowScore0.833
91.86% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences86
glossingSentenceCount2
matches
0"felt like twenty minutes, then suddenly"
1"as if crossing a membrane"
37.93% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.621
wordCount1234
matches
0"neither her heartbeat nor"
1"no longer pulsing but"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences109
matches
0"chose that moment"
96.65% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs42
mean29.38
std14.35
cv0.488
sampleLengths
044
114
244
346
449
537
64
718
831
97
103
1130
1223
1315
1432
1540
1616
1710
1844
1956
2022
2144
2226
2318
2421
257
2645
2732
2849
2918
3034
3139
3238
3312
3446
3548
3633
3733
3835
3926
4037
418
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences105
matches
0"was cracked"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount3
totalVerbs217
matches
0"were listening"
1"was approaching"
2"was reaching"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount11
semicolonCount0
flaggedSentences10
totalSentences109
ratio0.092
matches
0"Rory checked her watch—11:47."
1"The grove remained silent, but the silence itself had changed—become attentive, as if the darkness were listening."
2"The clicking resumed, closer this time, accompanied by a new sound—a wet, sliding noise that raised gooseflesh along her arms."
3"Rory grasped it, intending to remove the chain from around her neck, but the moment her fingers touched the crimson stone, images flashed behind her eyes—twisted pathways, a sky the color of bruises, creatures with too many joints moving in ways that defied physical laws."
4"But something touched her—a cold, damp pressure against the back of her neck."
5"The light spun crazily as it fell, briefly illuminating something impossible—a patch of darkness that bent wrong, that had depth and substance but no definable shape."
6"In that flash, Rory caught a glimpse of what stood before her—a suggestion of limbs that bent backward, of a face with too many eyes, of a mouth that opened sideways."
7"Something snagged her jacket—a branch, please let it be a branch—and she tore free, leaving fabric behind."
8"Normal darkness surrounded her—darkness pierced by distant streetlights, by the glow of London's skyline reflected in low clouds."
9"Whatever connection it had made was broken—or dormant."
97.92% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount400
adjectiveStacks0
stackExamples(empty)
adverbCount13
adverbRatio0.0325
lyAdverbCount9
lyAdverbRatio0.0225
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences109
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences109
mean11.32
std6.72
cv0.593
sampleLengths
020
124
214
315
417
56
66
78
815
96
1017
1115
127
134
145
1518
166
1715
1816
192
202
218
224
236
246
2513
263
279
287
293
3015
3115
327
339
347
3515
3617
3715
385
391
4013
4121
426
4310
444
456
4620
4715
489
4911
51.23% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats8
diversityRatio0.35185185185185186
totalSentences108
uniqueOpeners38
67.34% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences99
matches
0"Only the crimson glow of"
1"Then darkness again, and the"
ratio0.02
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount19
totalSentences99
matches
0"she called, her voice falling"
1"She fingered the crimson stone"
2"She settled onto a fallen"
3"Her watch read 11:52 for"
4"Her voice sounded thin, vulnerable"
5"She inhaled deeply, struggling to"
6"she demanded, forcing steel into"
7"She should leave, return to"
8"She turned sharply but saw"
9"She gasped, releasing the pendant,"
10"She switched on the flashlight"
11"She swept the light in"
12"she said, her voice steadier"
13"She stumbled forward, dropping her"
14"she whispered, backing toward where"
15"Her shoulder blades touched something"
16"She crashed through undergrowth, heart"
17"She stumbled onto the ordinary"
18"Her watch read 3:17 AM."
ratio0.192
81.21% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount75
totalSentences99
matches
0"Rory shivered as she stepped"
1"The Heartstone Pendant hung warm"
2"she called, her voice falling"
3"Richmond Park had emptied hours"
4"She fingered the crimson stone"
5"The unknown sender's note had"
6"The full moon provided enough"
7"Wildflowers that shouldn't be blooming"
8"Rory checked her watch—11:47."
9"She settled onto a fallen"
10"Time passed strangely in the"
11"Her watch read 11:52 for"
12"The pendant's warmth intensified, its"
13"Rory stood, turning slowly to"
14"The sound that answered wasn't"
15"A soft clicking, like pebbles"
16"Rory's muscles tensed."
17"The clicking moved, circling the"
18"Her voice sounded thin, vulnerable"
19"The clicking stopped."
ratio0.758
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences99
matches(empty)
ratio0
21.56% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences53
technicalSentenceCount9
matches
0"The Heartstone Pendant hung warm against her breastbone, pulsing with a gentle rhythm that matched neither her heartbeat nor any natural cadence she recognized."
1"She inhaled deeply, struggling to maintain the cool-headed rationality that had always been her strength."
2"The grove remained silent, but the silence itself had changed—become attentive, as if the darkness were listening."
3"The wildflowers, which had been gently wavering despite the lack of wind, went perfectly still."
4"The clicking resumed, closer this time, accompanied by a new sound—a wet, sliding noise that raised gooseflesh along her arms."
5"Rory grasped it, intending to remove the chain from around her neck, but the moment her fingers touched the crimson stone, images flashed behind her eyes—twiste…"
6"The beam caught nothing but swaying ferns and wildflowers, bending as if something had just passed through them."
7"The light spun crazily as it fell, briefly illuminating something impossible—a patch of darkness that bent wrong, that had depth and substance but no definable …"
8"Rory lunged for the gap between the nearest stones, feeling resistance as she passed through, as if crossing a membrane."
0.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags8
uselessAdditionCount2
matches
0"Her voice sounded, vulnerable"
1"she said, her voice steadier than she felt"
0.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags6
fancyCount2
fancyTags
0"she demanded (demand)"
1"she whispered (whisper)"
dialogueSentences11
tagDensity0.545
leniency1
rawRatio0.333
effectiveRatio0.333
74.4072%