Run: 2026-10-08-01M4E185DP4SDCXH18KB4F9ZG1

Run Details

Model:
Claude Haiku 5.5 (Reasoning, Low)
Test:
Bad Writing Habits
Scenario:
Fantasy: entering an ancient ruin
Duration:
16.6s
Cost:
$0.001449
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
100.00% Adverbs in dialogue tags (details)
65.79% AI-ism adverb frequency (details)
100.00% AI-ism character names (details)
100.00% AI-ism location names (details)
80.45% AI-ism word frequency (details)
66.67% Cliché density (details)
100.00% Emotion telling (show vs. tell) (details)
95.24% Filter word density (details)
100.00% Gibberish response detection (details)
100.00% Markdown formatting overuse (details)
100.00% Missing dialogue indicators (quotation marks) (details)
81.27% Name drop frequency (details)
100.00% Narrator intent-glossing (details)
100.00% "Not X but Y" pattern overuse (details)
100.00% Overuse of "that" (subordinate clause padding) (details)
100.00% Paragraph length variance (details)
99.42% Passive voice overuse (details)
100.00% Past progressive (was/were + -ing) overuse (details)
100.00% Em-dash & semicolon overuse (details)
95.05% Purple prose (modifier overload) (details)
100.00% Repeated phrase echo (details)
100.00% Sentence length variance (details)
65.70% Sentence opener variety (details)
62.89% Adverb-first sentence starts (details)
100.00% Pronoun-first sentence starts (details)
35.47% Subject-first sentence starts (details)
0.00% Subordinate conjunction sentence starts (details)
56.28% Technical jargon density (details)
100.00% Useless dialogue additions (details)
44.74% Dialogue tag variety (said vs. fancy) (details)
84.9651% Overall

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 knuckles of some buried giant, and Rory stopped at the boundary with her boots half in the Richmond autumn and half in something that was not autumn at all. The air on the far side was warm. It smelled of crushed thyme and rain on warm stone, and it hummed against her skin the way a fridge hums in an empty kitchen, low enough that she felt it in her teeth before she heard it. "Don't look for the seam," Isolde said. She had already stepped through without pausing, silver hair falling to her waist and catching a light that came from nowhere in particular. "The seam looks for you. Better to be looked at by nothing than by something." "That's not reassuring," Rory said. "It was not meant to be. Come along, Aurora Carter. The grove will not wait, and it has never once in three hundred years been in a hurry." Rory glanced back. The park behind them was ordinary: a dog walker's distant whistle, a bus grinding up the Kingston road, the grey smear of the sky over the treetops. Then she turned and the ordinary world seemed to slide a fraction to one side, like a photograph shifted on a table. A faint shimmer hung in the air at the edge of her vision, a distortion that vanished the moment she tried to look straight at it. She had seen it once before, in a Cardiff alley, and had told herself she was tired. She stepped through. The grass took her weight without a sound. It was impossibly soft, and the blades were not green so much as every shade of green at once, shifting as she moved. Wildflowers ran across the clearing in drifts: foxgloves, harebells, something with petals like folded paper and a scent like honey left in the sun. Some were open. Some were in bud. Some had gone to seed, and the seeds lifted on the faint breeze and hung in the air like tiny lanterns before drifting down again. Autumn had been Kingston's only weather for a month. Here, nothing had heard of it. Nyx was already there, though Rory had not seen them arrive. They stood at the edge of a stand of birch, a tall shape cut from a deeper dark than the shade beneath the trees. Their violet eyes glowed faintly, and when they spoke, their voice came from everywhere at once, like wind worrying the corner of a loose window. "It remembers us," Nyx whispered. "Not kindly. Not unkindly. It simply remembers." "Can you see the veil from in here?" Rory asked. "You can see it, too. You're pretending you can't." Nyx tilted their head. "Look at the sky." She did. Above the clearing, the light was pale gold, the colour of late afternoon in June, though when she'd entered, it had been grey. She pulled out her phone. The screen showed 16:42 and a date two weeks ahead, then nothing at all, then 09:15. She put it back in her pocket and didn't mention it. Isolde would only say that the hour inside could be minutes outside or days, and that the clock was a poor guide for people who had mistaken it for a map. The pendant at her throat stirred. Rory felt it before she noticed it, a small warmth pressed against her breastbone, like a hand resting there. The Heartstone had been a gift, though she had never learned who sent it. It had grown warm in Dymas-tinged places before. It had grown warm once beside a shop doorway in Soho where the air had tasted of smoke and sugar, and she had walked the other way very quickly. "Something is near," she said. "Something is always near," Isolde replied, parting a curtain of trailing ivy at the far side of the clearing. Behind it, an arch of living oak had grown together over a path of pale stones, each one carved with spirals too fine to trace. "The question is whether it is hungry." Rory's hand went to the Fae blade at her hip. The moonsilver hilt was cold even through her jacket, always cold, as if it carried winter in its grain. When she drew it an inch, the blade caught the gold light and gave back a faint silver glow, like frost holding moonlight. The cold steadied her. It always did. They walked the path. Rory watched the stones beneath her boots and found herself counting them without meaning to, then stopped, because the number kept changing. Behind Isolde, the grass remained upright. The Fae seer left no footprints at all, and Rory understood, with a small uneasy chill, that she had been half-expecting to find some, and was disappointed to find none. The sounds changed as they went deeper. First came birdsong, then a murmur that might have been running water, then voices that were almost words. Rory caught a laugh, bright and distant, and then a sigh, and then her own name, spoken softly in her mother's Welsh cadence, and she stopped dead. "Do not answer," Isolde said without turning. "The grove has many mouths. Most of them are lying, and the rest are only hungry." "And you?" "I cannot lie." The seer's voice was almost amused. "I can only choose what to leave unsaid. You will find the distinction useful, I think, in the hours to come." Nyx drifted past Rory, their shadow-form rippling as it crossed the path, and the trailing ivy shivered where they had passed. "Ahead," they whispered. "Light that does not belong to the sun." Through the arch, the path opened into a hollow ringed with stones taller than houses. At its centre, a pool lay perfectly still, reflecting a sky that was not the sky above them: deep amber, streaked with clouds like poured honey. Something glimmered beneath the surface, a ripple of gold and crimson, and the pendant at Rory's throat grew suddenly, unmistakably warm. She took a step forward, and the wildflowers at the water's edge all turned, very slowly, to face her.
created_at"2026-10-08T15:14:00.77Z" 10/8/2026, 3:14:00 PM
model"anthropic/claude-haiku-5.5-20261007"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2396
moderation_latency(null)
generation_time16326
tokens_prompt1547
tokens_completion1528
native_tokens_prompt2387
native_tokens_completion2420
native_tokens_completion_images(null)
native_tokens_reasoning519
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"
usage0.0014487
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791472440-Qnjcmb4pRL1xoN4XwM4c"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791472440-9E2ut9B4JEePyb4B7EbL"
upstream_id"msg_011CfpzF7KLSj5cP7oGbJuPX"
provider_responses
0
endpoint_id"b6cdf493-3a61-441f-a134-e7944fddb980"
id"msg_011CfpzF7KLSj5cP7oGbJuPX"
is_byokfalse
latency827
model_permaslug"anthropic/claude-haiku-5.5-20261007"
provider_name"Claude Platform on AWS"
status200
total_cost0.0014487
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags9
adverbTagCount0
adverbTags(empty)
dialogueSentences19
tagDensity0.474
leniency0.947
rawRatio0
effectiveRatio0
65.79% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount1023
totalAiIsmAdverbs7
found
0
adverb"very"
count2
1
adverb"quickly"
count1
2
adverb"softly"
count1
3
adverb"perfectly"
count1
4
adverb"suddenly"
count1
5
adverb"slowly"
count1
highlights
0"very"
1"quickly"
2"softly"
3"perfectly"
4"suddenly"
5"slowly"
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)
80.45% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount1023
totalAiIsms4
found
0
word"weight"
count1
1
word"warmth"
count1
2
word"tinged"
count1
3
word"chill"
count1
highlights
0"weight"
1"warmth"
2"tinged"
3"chill"
66.67% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches2
maxInWindow2
found
0
label"hung in the air"
count2
highlights
0"hung in the air"
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences60
matches(empty)
95.24% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount0
hedgeCount2
narrationSentences60
filterMatches(empty)
hedgeMatches
0"seemed to"
1"tried to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences69
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen39
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords1023
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions8
unquotedAttributions0
matches(empty)
81.27% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions33
wordCount873
uniqueNames13
maxNameDensity1.37
worstName"Rory"
maxWindowNameDensity2.5
worstWindowName"Rory"
discoveredNames
Rory12
Richmond1
Kingston2
Cardiff1
Nyx4
June1
Heartstone1
Dymas-tinged1
Soho1
Isolde5
Fae2
Welsh1
Through1
persons
0"Rory"
1"Nyx"
2"Heartstone"
3"Isolde"
places
0"Richmond"
1"Kingston"
2"Cardiff"
3"June"
4"Dymas-tinged"
5"Soho"
6"Fae"
globalScore0.813
windowScore0.833
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences43
glossingSentenceCount0
matches(empty)
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount1023
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount1
totalSentences69
matches
0"say that the"
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs24
mean42.63
std30.86
cv0.724
sampleLengths
085
145
25
328
495
53
6102
760
812
910
1017
1188
1276
135
1451
1559
1662
1752
1823
192
2030
2132
2262
2319
99.42% Passive voice overuse
Target: ≤2% passive sentences
passiveCount1
totalSentences60
matches
0"was disappointed"
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs148
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences69
ratio0
matches(empty)
95.05% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount876
adjectiveStacks0
stackExamples(empty)
adverbCount40
adverbRatio0.045662100456621
lyAdverbCount10
lyAdverbRatio0.01141552511415525
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences69
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences69
mean14.83
std9.59
cv0.647
sampleLengths
039
18
238
37
423
515
65
728
83
927
1022
1126
1217
133
148
1523
1624
173
184
1925
209
216
2211
2324
2425
255
267
2710
2813
294
302
3123
325
3316
3411
3531
366
3719
3814
398
4029
415
4219
4325
447
4510
4619
4723
484
493
65.70% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats8
diversityRatio0.463768115942029
totalSentences69
uniqueOpeners32
62.89% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount1
totalSentences53
matches
0"Then she turned and the"
ratio0.019
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount14
totalSentences53
matches
0"It smelled of crushed thyme"
1"She had already stepped through"
2"She had seen it once"
3"She stepped through."
4"It was impossibly soft, and"
5"They stood at the edge"
6"Their violet eyes glowed faintly,"
7"She pulled out her phone."
8"She put it back in"
9"It had grown warm in"
10"It had grown warm once"
11"It always did."
12"They walked the path."
13"She took a step forward,"
ratio0.264
35.47% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount45
totalSentences53
matches
0"The standing stones rose out"
1"The air on the far"
2"It smelled of crushed thyme"
3"She had already stepped through"
4"Rory glanced back."
5"The park behind them was"
6"A faint shimmer hung in"
7"She had seen it once"
8"She stepped through."
9"The grass took her weight"
10"It was impossibly soft, and"
11"Wildflowers ran across the clearing"
12"Some were open."
13"Some were in bud."
14"Some had gone to seed,"
15"Autumn had been Kingston's only"
16"Here, nothing had heard of"
17"Nyx was already there, though"
18"They stood at the edge"
19"Their violet eyes glowed faintly,"
ratio0.849
0.00% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount0
totalSentences53
matches(empty)
ratio0
56.28% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences33
technicalSentenceCount4
matches
0"The standing stones rose out of the bracken like the knuckles of some buried giant, and Rory stopped at the boundary with her boots half in the Richmond autumn …"
1"She had already stepped through without pausing, silver hair falling to her waist and catching a light that came from nowhere in particular."
2"The moonsilver hilt was cold even through her jacket, always cold, as if it carried winter in its grain."
3"At its centre, a pool lay perfectly still, reflecting a sky that was not the sky above them: deep amber, streaked with clouds like poured honey."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags9
uselessAdditionCount0
matches(empty)
44.74% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags8
fancyCount2
fancyTags
0"Nyx whispered (whisper)"
1"they whispered (whisper)"
dialogueSentences19
tagDensity0.421
leniency0.842
rawRatio0.25
effectiveRatio0.211
84.9651%