Run: 2026-05-31-01KSYXK0KPS8RZXD0ZBBVSQE8A

Run Details

Duration:
44.9s
Cost:
$0.070125
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> <character id="4418" name="Nyx" aliases="Nyx, the Shadow, Nightwhisper" pronouns="they/them" species="Shade" storyRole="Wild Card"> <eyeColor>faintly glowing violet</eyeColor> <height>approximately 6'2" in solid form</height> <age>ageless</age> <form>humanoid silhouette of living shadow, can shift between solid and incorporeal</form> <voice>sounds like a whisper carried on the wind</voice> <description>A being of living shadow, existing between the mortal plane and the spaces between realms.</description> <backstory>Nyx was once a human sorcerer named Aldric who became trapped between realms during a failed summoning ritual in 1643. They now exist as a Shade, bound to the mortal plane but able to slip between shadows.</backstory> </character> <character id="4424" name="Isolde Varga" aliases="Isolde, the Seer" pronouns="she/her" species="Half-Fae" storyRole="Oracle"> <eyeColor>pale lavender</eyeColor> <hair>silver, reaching her waist</hair> <height>5'5"</height> <age>300 years old</age> <appearance>ethereal, ageless</appearance> <speech>speaks in riddles</speech> <footprints>leaves no footprints when she walks</footprints> <compulsion>cannot lie (Fae compulsion) but can mislead</compulsion> <description>A Half-Fae seer exiled from the Fae Courts for sharing visions with mortals.</description> <backstory>She now lives in a hidden grove in Richmond Park, offering cryptic prophecies to those who seek her out.</backstory> </character> <location id="853" name="Dymas (Gluttony)" aliases="Dymas, gluttony, Dymasian" realm="Hel" sin="Gluttony"> <ruler>Prince Belphegor</ruler> <skyColor>warm amber</skyColor> <description>A place of excess and indulgence. Sprawling vineyards, orchards, and gardens provide exotic ingredients for master chefs — often helbound souls contracted from Earth. Grand feasts and culinary competitions are common.</description> </location> <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> <item id="2006" name="Fae-Forged Blade" aliases="the Fae blade, Isolde's gift" type="Weapon" origin="The Fae Courts"> <material>moonsilver</material> <shape>slender, leaf-shaped dagger</shape> <temperature>always cold to the touch</temperature> <glow>faintly luminescent in moonlight</glow> <power>can cut through magical wards; particularly effective against demons</power> <givenTo>given to Aurora by Isolde as a gift</givenTo> <description>A weapon of the Fae Courts, rare and highly coveted.</description> </item> <lore id="7001" name="The Veil" aliases="the Veil, the Barrier, the Boundary" category="Cosmology"> <solsticeEffect>weakens during the winter solstice, strengthens during the summer solstice</solsticeEffect> <appearance>faint shimmering distortion visible only to those with supernatural sight</appearance> <monitoring>rift points (tears in the Veil) are monitored by the Wardens</monitoring> <description>The Veil is the metaphysical barrier separating Earth from Hel and the Fae Realms.</description> </lore> </codex> Write a fully fleshed out scene of at least 1000 words in the fantasy genre. A small group enters an ancient, otherworldly place for the first time. The environment is alien and wondrous. Describe their exploration — what they see, hear, and feel as they move deeper. Include moments of discovery, unease, and wonder. Let the world-building emerge through the characters' experience rather than exposition. Use the codex entries above as your world reference for characters, setting, and lore. Only include the prose of the scene without any markdown or commentary.

Model response

AI
The standing stones rose out of the bracken like the teeth of some long-buried beast, twisted oak grown gray and hard as iron, taller than any man. Rory stopped at the threshold between them, one hand pressed flat against the nearest trunk. The bark was warm. That was the first wrong thing. It was January in Richmond Park, the frost still crusting the grass behind them, and yet the wood beneath her palm held the warmth of a body. "This is it," she said. Her breath fogged in the cold air on the outside of the stones — and then didn't, as she leaned her head between them. Behind her, Eva's friend-of-a-friend, a wiry man named Tomas who'd claimed to know the way, hung back. "I'm not going in there." "You said you'd take us." "I said I'd bring you to it." He was already retreating, hands raised. "People go in and come out wrong. Or old. Or not at all. That's as far as I go." Rory looked at Nyx. The Shade had gone almost entirely incorporeal in the thin winter light, a smear of darkness clinging to the lee of a holly bush, but at her glance they solidified — drawing inward until the silhouette of shoulders and a head took shape, the violet glow of their eyes kindling like two struck matches. "He's not wrong," Nyx said, their voice the dry hiss of wind through reeds. "Time runs strange in there. We could lose an afternoon. We could lose a year." "Isolde said to come to her. So we go to her." Rory's fingers found the Heartstone where it lay against her sternum, cool now, dormant. No portal near. Small comfort. "Stay close. Both of you." She stepped between the stones. The cold vanished all at once, as though she'd walked through a curtain and out the other side into a summer she had no memory of. The change struck her in the lungs first — air thick and sweet and green, heavy with pollen and the heady rot of overripe fruit. She staggered a half-step, blinking. Behind her, the park was gone. Where the bare oaks and the gray afternoon should have been, there was only more of the grove: a wall of foliage so dense and so deeply colored it seemed lacquered, painted, unreal. "Nyx?" "Here." The Shade slid through the gap behind her, and for a moment they flickered, their edges fraying like smoke caught in a draft. They made a low sound that might have been pain. "This place doesn't like me. Too much light. Too much... living." They drew their form tighter, more solid than Rory had ever seen them, almost a man — six feet and more of dark, with the suggestion of a long coat hanging from those shadow shoulders. "I'll manage." The clearing breathed around them. That was the only word for it. Rory felt it in the soles of her feet through her boots — a slow, vast rhythm, an inhale and exhale that wasn't hers and wasn't Nyx's. The wildflowers carpeting the ground turned their faces toward them as they passed, not bending in any wind but *turning*, deliberate as cats, blooms of impossible blue and a red so deep it was nearly black. She brushed one with her knee and it chimed, a single clear bell-note that hung in the air far longer than sound had any right to. "Don't touch anything," Nyx murmured. "I noticed." The light had no source. She kept looking for the sun and finding only a high golden haze, the whole sky one diffuse glow that cast no shadows — and she realized, with a lurch in her stomach, that *she* cast no shadow either. Neither did the trees. The grass. Only Nyx trailed a faint smudge of dark beneath their feet, as if they carried their own night with them wherever they went. They walked. The clearing should have been small — Tomas had called it a clearing, after all — but the trees kept parting ahead of them, revealing new depths, new hollows. A stream crossed their path, water running silver and slow as honey, and when Rory crouched to look she saw her own face reflected back at her older, the skin around her eyes creased, silver threading the black of her hair. She jerked back. The next glimpse showed her a child, gap-toothed, the crescent scar on her wrist fresh and pink. She stood quickly and didn't look again. "It shows you what it wants you to fear," Nyx said quietly. "Or want. Keep moving." A sound began to thread through the green hush — music, maybe, or what music dreamed of being: a high, wandering melody with no instrument she could name behind it, rising and falling like a question never quite asked. It pulled at something beneath her ribs. She found her feet drifting toward it before she knew she'd turned, her hand lifting from her side. "Rory." Nyx's grip closed on her wrist — solid, shockingly so, cold as the Fae blade sheathed at her hip. The music guttered out like a snuffed flame. "Not that way. The Court left its hooks in this soil a long time ago. Walk the path that's shown to you and nothing else." She blinked the fog from her eyes. Her heart was going too fast. "How do you know all this?" The violet eyes regarded her. "I was a man once. A foolish one, who wanted things he had no business wanting, from places like this." A pause. "It cost me my body. I'd rather you keep yours." She didn't answer that. There wasn't an answer. She only nodded and let them lead her on. The trees thinned at last. Beyond them lay a true clearing — wide and round and ringed with hawthorn in full white bloom, petals drifting down through the still air to settle on the grass without ever seeming to land. At its center grew a single oak, vast and ancient, its branches woven overhead into a living vault. And beneath it, on a low seat of moss and root that the tree itself seemed to have grown for her, sat a woman with hair like spun silver pooling around her on the ground. She had been waiting. Rory understood that instantly — that the seer had been waiting not minutes but the precise length of their journey, that the grove had unspooled exactly as far as it needed to bring them here, no farther. Isolde Varga lifted her head, and her eyes were the pale lavender of the first crocus through snow. "You found the way," she said. Her voice was soft, amused, and underneath it ran something older than amusement. "Or it found you. The two are seldom different here." She tilted her head, and the silver hair slid like water. "You've brought the dark with you, child. And cold iron of the moon at your hip. Brave. Or foolish. Sit. We have less time than you think, and far more than you fear." Rory glanced once at Nyx, who had gone still and watchful at the edge of the hawthorn ring, refusing to cross it. Then she stepped forward into the falling petals, and not one of them touched her.
created_at"2026-05-31T11:44:27.267Z" 5/31/2026, 11:44:27 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3501
moderation_latency(null)
generation_time44817
tokens_prompt1590
tokens_completion1771
native_tokens_prompt2385
native_tokens_completion2328
native_tokens_completion_images(null)
native_tokens_reasoning68
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"
usage0.070125
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01A7GXtNFAiY2ZvzjpFYC4kF"
is_byokfalse
latency1484
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-1780227867-4F1kNO1b9Zvs5ERiMSL4"
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api_type"completions"
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upstream_id"msg_01A7GXtNFAiY2ZvzjpFYC4kF"
total_cost0.070125
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
totalTags11
adverbTagCount1
adverbTags
0"Nyx said quietly [quietly]"
dialogueSentences25
tagDensity0.44
leniency0.88
rawRatio0.091
effectiveRatio0.08
95.86% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1208
totalAiIsmAdverbs1
found
0
adverb"quickly"
count1
highlights
0"quickly"
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)
79.30% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1208
totalAiIsms5
found
0
word"warmth"
count1
1
word"flickered"
count1
2
word"lurch"
count1
3
word"stomach"
count1
4
word"depths"
count1
highlights
0"warmth"
1"flickered"
2"lurch"
3"stomach"
4"depths"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches1
maxInWindow1
found
0
label"hung in the air"
count1
highlights
0"hung in the air"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences66
matches(empty)
99.57% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount2
narrationSentences66
filterMatches(empty)
hedgeMatches
0"began to"
1"seemed to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences79
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
markdownWords2
totalWords1220
ratio0.002
matches
0"turning"
1"she"
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions10
unquotedAttributions0
matches(empty)
100.00% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions27
wordCount1005
uniqueNames11
maxNameDensity0.8
worstName"Rory"
maxWindowNameDensity1.5
worstWindowName"Rory"
discoveredNames
January1
Richmond1
Park1
Eva1
Tomas2
Rory8
Nyx8
Shade2
Heartstone1
Fae1
Varga1
persons
0"Eva"
1"Tomas"
2"Rory"
3"Nyx"
4"Shade"
5"Varga"
places
0"Richmond"
1"Park"
globalScore1
windowScore1
93.18% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences44
glossingSentenceCount1
matches
0"seemed lacquered painted, unreal"
36.07% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches2
per1kWords1.639
wordCount1220
matches
0"not bending in any wind but *turning*, deliberate as cats, blooms of impossible blue"
1"not minutes but the precise length of their journey"
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences79
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs29
mean42.07
std33.28
cv0.791
sampleLengths
079
129
222
35
432
54
683
735
85
995
101
1182
125
1396
145
152
1673
1799
1816
1964
2053
2119
2237
2317
2493
2541
2618
2773
2837
99.95% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences66
matches
0"was gone"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount2
totalVerbs152
matches
0"was already retreating"
1"was going"
0.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount12
semicolonCount0
flaggedSentences11
totalSentences79
ratio0.139
matches
0"Her breath fogged in the cold air on the outside of the stones — and then didn't, as she leaned her head between them."
1"The Shade had gone almost entirely incorporeal in the thin winter light, a smear of darkness clinging to the lee of a holly bush, but at her glance they solidified — drawing inward until the silhouette of shoulders and a head took shape, the violet glow of their eyes kindling like two struck matches."
2"The change struck her in the lungs first — air thick and sweet and green, heavy with pollen and the heady rot of overripe fruit."
3"\"This place doesn't like me. Too much light. Too much... living.\" They drew their form tighter, more solid than Rory had ever seen them, almost a man — six feet and more of dark, with the suggestion of a long coat hanging from those shadow shoulders."
4"Rory felt it in the soles of her feet through her boots — a slow, vast rhythm, an inhale and exhale that wasn't hers and wasn't Nyx's."
5"She kept looking for the sun and finding only a high golden haze, the whole sky one diffuse glow that cast no shadows — and she realized, with a lurch in her stomach, that *she* cast no shadow either."
6"The clearing should have been small — Tomas had called it a clearing, after all — but the trees kept parting ahead of them, revealing new depths, new hollows."
7"A sound began to thread through the green hush — music, maybe, or what music dreamed of being: a high, wandering melody with no instrument she could name behind it, rising and falling like a question never quite asked."
8"\"Rory.\" Nyx's grip closed on her wrist — solid, shockingly so, cold as the Fae blade sheathed at her hip."
9"Beyond them lay a true clearing — wide and round and ringed with hawthorn in full white bloom, petals drifting down through the still air to settle on the grass without ever seeming to land."
10"Rory understood that instantly — that the seer had been waiting not minutes but the precise length of their journey, that the grove had unspooled exactly as far as it needed to bring them here, no farther."
92.12% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1000
adjectiveStacks0
stackExamples(empty)
adverbCount49
adverbRatio0.049
lyAdverbCount14
lyAdverbRatio0.014
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences79
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences79
mean15.44
std12.51
cv0.81
sampleLengths
027
115
24
36
427
55
624
717
85
95
1013
1119
124
1354
1414
1515
1625
173
182
195
205
2126
2225
235
246
2533
261
2724
2810
2946
302
315
327
3327
3436
3526
365
372
385
3939
404
412
4223
432
4429
4541
463
4717
487
4912
68.35% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats1
diversityRatio0.4177215189873418
totalSentences79
uniqueOpeners33
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount2
totalSentences59
matches
0"Only Nyx trailed a faint"
1"Then she stepped forward into"
ratio0.034
84.41% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount20
totalSentences59
matches
0"It was January in Richmond"
1"Her breath fogged in the"
2"He was already retreating, hands"
3"She stepped between the stones."
4"She staggered a half-step, blinking."
5"They made a low sound"
6"They drew their form tighter,"
7"She brushed one with her"
8"She kept looking for the"
9"She jerked back."
10"She stood quickly and didn't"
11"It pulled at something beneath"
12"She found her feet drifting"
13"She blinked the fog from"
14"Her heart was going too"
15"She didn't answer that."
16"She only nodded and let"
17"She had been waiting."
18"Her voice was soft, amused,"
19"She tilted her head, and"
ratio0.339
44.75% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount49
totalSentences59
matches
0"The standing stones rose out"
1"Rory stopped at the threshold"
2"The bark was warm."
3"That was the first wrong"
4"It was January in Richmond"
5"Her breath fogged in the"
6"He was already retreating, hands"
7"Rory looked at Nyx."
8"The Shade had gone almost"
9"Nyx said, their voice the"
10"Rory's fingers found the Heartstone"
11"She stepped between the stones."
12"The cold vanished all at"
13"The change struck her in"
14"She staggered a half-step, blinking."
15"The Shade slid through the"
16"They made a low sound"
17"They drew their form tighter,"
18"The clearing breathed around them."
19"That was the only word"
ratio0.831
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences59
matches(empty)
ratio0
66.33% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences28
technicalSentenceCount3
matches
0"Behind her, Eva's friend-of-a-friend, a wiry man named Tomas who'd claimed to know the way, hung back."
1"The Shade had gone almost entirely incorporeal in the thin winter light, a smear of darkness clinging to the lee of a holly bush, but at her glance they solidif…"
2"She brushed one with her knee and it chimed, a single clear bell-note that hung in the air far longer than sound had any right to."
79.55% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags11
uselessAdditionCount1
matches
0"Nyx said, their voice the dry hiss of wind through reeds"
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags5
fancyCount1
fancyTags
0"Nyx murmured (murmur)"
dialogueSentences25
tagDensity0.2
leniency0.4
rawRatio0.2
effectiveRatio0.08
84.6477%