NC Bench
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Run: 2026-02-17-01KHMZ2A60PYVRM36CC9H2W6PP
Run Details
Model:
Claude Sonnet 4
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
39.0s
Cost:
$0.028401
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
Messages
Meta
AI
The silver chain felt warm against Aurora's throat as she stepped between the ancient oak standing stones. The Heartstone pendant pulsed once, twice, then settled into a steady rhythm that matched her heartbeat. Behind her, Nyx materialized from shadow, their violet eyes reflecting the strange light that
seemed to
emanate from the
very
air within the grove. "Time moves strangely here," Isolde had warned them before leading them to this place. Now, as Aurora's boots touched the soft earth beyond the threshold, she understood what the half-Fae seer meant. The quality of light shifted like water, sometimes golden as afternoon sun, sometimes silver as moonbeams, regardless of the amber twilight they'd left behind in Richmond Park. Wildflowers carpeted the ground in impossible profusion—winter roses bloomed alongside summer daisies, their petals shimmering with dew that never
seemed to
evaporate. Aurora knelt to touch one, a delicate thing with petals like spun glass. The flower hummed beneath her fingertip, a vibration she felt more than heard. "The boundary holds," Nyx whispered, their voice carrying on a wind that stirred the flowers but left Aurora's hair untouched. "Between realms, between moments." She straightened, her bright blue eyes scanning the grove. It str
etched
further than should have been possible within the confines of Richmond Park—a clearing that
seemed to
breathe with its own life. Ancient trees formed a loose circle around them, their bark silver-white and smooth as bone. No, not trees, she realized. Standing stones carved to look like trees, so cunningly
crafted that moss
and lichen had claimed them as their own. The Heartstone grew warmer against her skin. Aurora pulled it free of her shirt, watching the deep crimson gem pulse with inner fire. "It's reacting to something." Isolde moved between the stone trees with the fluid grace of water, her silver hair flowing behind her like liquid moonlight. Her bare feet left no impression in the soft earth, and where she walked, the flowers
seemed to
lean toward her as if drawn by an invisible current. "All boundaries thin here," she said without turning. "The pendant recognizes kinship." "Kinship with what?" Aurora followed, conscious of how her
footsteps
seemed to
o loud, too earthly in this place of whispers and half-light. The half-Fae seer paused beside a pool that hadn't been there moments before—or perhaps it had always been there, and Aurora simply hadn't known how to see it. The water reflected not the canopy above but stars, countless stars wheeling in patterns she didn't recognize. "With the spaces between," Isolde replied, dipping one pale finger into the starlit water. Ripples spread outward, and for a moment Aurora could have sworn she saw faces in the waves—distant, beautiful, and
utterly
alien. "Your pendant was forged in Dymas, shaped by hands that know hunger. But hunger and
yearning
are sisters, and
yearning
calls to the liminal places." Nyx drifted closer to the pool, their shadowy form solidifying as they studied their reflection. In the star-touched water, they appeared almost human—angular features sharp with old pain, violet eyes bright with curiosity. "I remember this," they said
softly
. "Or something like it. Before I became... this." Aurora felt a chill that had nothing to do with the temperature. The grove was warm despite the impossible flowers, the air thick with the scent of growing things and something else—something that reminded her of lightning and copper pennies. Magic, she supposed, though the word felt inadequate. They moved deeper into the clearing, following a path that revealed itself one step at a time. Mushrooms the size of dinner plates glowed with phosphorescent light along the way, their caps pulsing in rhythm with Aurora's pendant. She paused beside one, studying the
intricate
patterns
etched
into its surface. They looked almost like writing, but in no alphabet she recognized. "Fae script," Isolde confirmed when Aurora traced the symbols with her finger. "A poem about the
weight
of moonlight on water." "Can you read it?" "I am reading it." The half-Fae's pale lavender eyes held an ancient sadness. "It speaks of exile, of watching from between worlds while life moves on without you. The mushrooms remember the one who planted them—another exile, like myself." A sound drifted through the grove then, melodic and haunting. Not quite music, not quite voice, but something that made Aurora's chest tight with inexplicable longing. The pendant against her throat pulsed brighter, its warmth spreading through her ribcage. "What is that?" Nyx tilted their head, shadow-form flickering. "The song of the threshold. Where boundaries meet, they sing." Their whispered voice carried a note of wonder. "I had forgotten... in the spaces between shadow and substance, there is always music." They crested a small rise, and the grove opened before them into something that stole Aurora's breath. A amphitheater of living wood str
etched
down into a natural bowl, its seats carved from twisted roots and flowering vines. At the center, a tree that defied description reached toward a sky that showed glimpses of other skies—sometimes blue, sometimes star-scattered void, sometimes the warm amber of distant Dymas. The tree's bark was silver and gold, its leaves e
very
color that had ever
been named
. But it was the fruit that made Aurora's knees weak. They hung like lanterns from the branches, each one containing what looked like liquid light—some golden, some silver, some deep purple like Nyx's eyes. "The Tree of Moments," Isolde said, her voice reverent. "Where time pools and eddies. Each fruit holds a memory, a possibility, a path not taken." Aurora took a step forward, then stopped. The air around the tree
shimmered
like heat waves, and she could see movement within that distortion—shapes that might have been people, or might have been dreams given form. "Is it safe?" "Safety is not the question here." Isolde's smile held the
weight
of centuries. "The question is whether you are ready to see what the grove wishes to show you." The Heartstone pendant pulsed once more, then went quiet against Aurora's throat. Around them, the impossible flowers swayed in their perpetual breeze, and the mushrooms continued their phosphorescent
dance
. In the distance, that haunting not-quite-music rose and fell like breathing. Aurora looked at her companions—the ancient exile who had brought them here, the shadow-bound soul searching for memories of mortality. Then she looked at the tree with its fruit of captured time, at the amphitheater where boundaries dissolved into song. She took another step forward, into the shimmer, into the space between what was and what might be.
Evaluation details
Result
Evaluator
Details
Meta Data
85.7143%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
7
adverbTagCount
1
adverbTags
0
"they said softly [softly]"
72.8261%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1104
totalAiIsmAdverbs
3
found
0
adverb
"softly"
count
1
1
adverb
"utterly"
count
1
2
adverb
"very"
count
1
highlights
0
"softly"
1
"utterly"
2
"very"
100.0000%
AI-ism character names
Target: 0 AI-default names (17 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
100.0000%
AI-ism location names
Target: 0 AI-default location names (33 tracked, −20% each)
codexExemptions
(empty)
found
(empty)
18.4783%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1104
totalAiIsms
9
found
0
word
"shimmered"
count
1
1
word
"intricate"
count
1
2
word
"yearning"
count
2
3
word
"weight"
count
2
4
word
"dance"
count
1
5
word
"footsteps"
count
1
6
word
"etched"
count
1
highlights
0
"shimmered"
1
"intricate"
2
"yearning"
3
"weight"
4
"dance"
5
"footsteps"
6
"etched"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
0
maxInWindow
0
found
(empty)
highlights
(empty)
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
58
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
0
hedgeCount
5
narrationSentences
58
filterMatches
(empty)
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
1
totalSentences
71
matches
0
"crafted that moss"
96.0190%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
28
mean
38.64
std
18.78
cv
0.486
sampleLengths
0
57
1
59
2
48
3
24
4
72
5
27
6
61
7
22
8
45
9
60
10
47
11
48
12
61
13
21
14
4
15
39
16
39
17
3
18
38
19
66
20
50
21
25
22
36
23
3
24
29
25
40
26
40
27
18
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
1
totalSentences
58
matches
0
"been named"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
0
totalVerbs
146
matches
(empty)
96.9565%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
920
adjectiveStacks
0
stackExamples
(empty)
adverbCount
40
adverbRatio
0.043478260869565216
lyAdverbCount
5
lyAdverbRatio
0.005434782608695652
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
71
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
71
mean
15.24
std
6.96
cv
0.457
sampleLengths
0
17
1
16
2
24
3
14
4
18
5
27
6
22
7
13
8
13
9
20
10
4
11
9
12
23
13
15
14
5
15
20
16
7
17
16
18
4
19
21
20
28
21
8
22
4
23
22
24
28
25
17
26
14
27
21
28
25
29
15
30
18
31
6
32
8
33
12
34
28
35
8
36
17
37
21
38
12
39
11
40
12
41
9
42
4
43
13
44
26
45
10
46
16
47
13
48
3
49
6
83.5681%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
4
diversityRatio
0.5352112676056338
totalSentences
71
uniqueOpeners
38
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
7
fancyCount
5
fancyTags
0
"Isolde had warned them before leading them to this place (warn lead)"
1
"Nyx whispered, their voice carrying on a wind that stirred the flowers but left Aurora's hair untouched (whisper, carry on stir untouch)"
2
"Isolde replied, dipping one pale finger into the starlit water (reply, dip)"
3
"they said softly (say softly)"
4
"Isolde confirmed when Aurora traced the symbols with her finger (confirm trace)"
85.5037%