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Run: 2026-02-17-01KHMMFE4MQ26EAMBG5G801DF8
Run Details
Model:
Claude 3 Haiku
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
8.3s
Cost:
$0.001857
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="4416" name="Detective Harlow Quinn" aliases="Quinn, Detective Quinn, Harlow" pronouns="she/her" species="Human" storyRole="Antagonist"> <eyeColor>brown</eyeColor> <hair>closely cropped salt-and-pepper</hair> <height>5'9"</height> <age>41</age> <jawline>sharp jaw</jawline> <watch>worn leather watch on her left wrist</watch> <bearing>military precision</bearing> <description>A Metropolitan Police detective with 18 years of decorated service who suspects the clique is involved in criminal activity.</description> <backstory>She lost her partner, DS Morris, during a case three years ago under unexplained circumstances that had supernatural origins she doesn't yet understand.</backstory> </character> <character id="4414" name="Eva Kowalski" aliases="Eva, Evie" pronouns="she/her" species="Human" storyRole="Best Friend"> <eyeColor>green</eyeColor> <hair>curly red</hair> <height>5'4"</height> <age>26</age> <glasses>round glasses</glasses> <satchel>worn leather satchel full of books</satchel> <freckles>freckled complexion</freckles> <nervousHabit>tucking hair behind her left ear</nervousHabit> <description>Aurora's childhood friend and an occult researcher.</description> <backstory>Moved to London two years before Aurora and works as a research assistant at the British Museum's restricted archives. She holds a master's degree in Ancient History from Oxford.</backstory> </character> <location id="856" name="The Veil Market" aliases="Veil Market, the Market, underground market" realm="Earth"> <currentLocation>abandoned Tube station beneath Camden</currentLocation> <entryRequirement>bone token</entryRequirement> <schedule>moves locations every full moon</schedule> <description>A hidden supernatural black market that sells enchanted goods, banned alchemical substances, and information.</description> </location> <item id="2004" name="Veil Compass" aliases="the Compass, shadow compass" type="Tool" origin="The Veil Market"> <casingMaterial>small brass compass</casingMaterial> <faceMarkings>face etched with protective sigils</faceMarkings> <needle>points toward the nearest supernatural rift or portal</needle> <patina>casing has a patina of verdigris</patina> <creator>crafted by a Shade artisan</creator> <description>A compass attuned to supernatural energy.</description> </item> </codex> Write a fully fleshed out scene of at least 1000 words in the mystery genre. A detective arrives at a crime scene in an unusual location. Something is wrong — the evidence doesn't add up. A colleague is present, offering a different interpretation. Through careful observation and deduction, the detective begins to see what others have missed. Use the codex entries above as your world reference for characters and setting. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
Detective Harlow Quinn's steel-toed boots splashed through the fetid puddle as she stepped out of the Tube station and into the dim, flickering light of the Veil Market.
The air was thick with
the scent of candle wax, exotic spices, and a faint hint of ozone. Harlow's
eyes narrowed
as she surveyed the bustling scene — booths and stalls ringed the cavernous underground space, their proprietors hawking enchanted wares, occult trinkets, and surreptitious information. It was a far cry from the bright, orderly streets of London above. This was the domain of the city's supernatural underbelly, a place where the normal rules didn't apply. "What have we got, Evie?" Harlow called out, her voice cutting through the chaotic din. A familiar figure in a worn leather satchel emerged from the crowd, her curly red hair tucked behind one ear in a nervous habit. "Detective Quinn. I didn't expect to see you here." Harlow arched one salt-and-pepper eyebrow. "Where else would I be when one of my informants turns up dead in the middle of the Market?" Eva Kowalski's brow
furrowed
. "Dead? But that can't be right. I just saw Tomas an hour ago—" "Then you tell me what the hell happened." Harlow gestured towards the center of the market, where a cluster of onlookers had gathered. "Because from where I'm standing, it looks like a murder." Eva's green
eyes widened
behind her round glasses. "A murder? But who would dare—" "That's what I intend to find out." Harlow strode towards the commotion, her bearing military-precise. The crowd parted before her, casting wary glances in her direction. In the center of the throng lay the crumpled body of a man, his vacant eyes staring up at the crumbling brick arches above. Harlow knelt beside him, her sharp jaw set in a grim line as she
cataloged
the details. His throat had
been slashed
, the wound ragged and messy. No signs of a struggle. She frowned, a niggling suspicion taking root in the back of her mind. "You know him?" she asked, glancing up at Eva. The young woman nodded
hesitantly
. "Yes, that's Tomas. He's... was one of the Market's information brokers." She worried at the strap of her satchel, her gaze darting around
nervously
. "I can't believe someone would kill him here, of all places." Harlow's
eyes narrowed
. "Can you think of anyone who might have had a motive?" Eva bit her lip, brow
furrowed
in thought. "Tomas didn't have any enemies that I know of. He was always careful to stay neutral, to play both sides—" "Both sides?" Harlow interrupted, a spark of interest in her eyes. "What exactly do you mean by that?" Eva hesitated, then sighed. "The Veil Market... it's not just a place for buying and selling. There are factions, alliances, power struggles. Tomas made his living by brokering information between them." Harlow's gaze drifted back to the body, her mind working
quickly
. "So he was caught in the middle of something bigger." She rose to her feet, surveying the scene with a critical eye. The victim's wallet and personal effects
were untouched
, ruling out a simple robbery gone wrong. The wound was clean, surgical — the work of a skilled hand. And the location... Harlow's
eyes narrowed
. The Veil Market was a place of deep magic, hidden away from the mundane world above. Somehow, she doubted this was a mere mortal killing. "You said the Market moves locations every full moon," she murmured, half to herself. "When was the last time it convened?" "Three nights ago," Eva supplied, her fingers tightening on the strap of her satchel. "The next full moon is in two days." Harlow's lips thinned. "So whatever happened, it was recent." She crouched back down, her fingers tracing the edges of the fatal wound. The flesh
was cauterized
, as if by extreme heat. Her brow
furrowed
. "This wasn't a mundane blade." Eva's
eyes widened
. "You think... supernatural involvement?" Harlow didn't respond, her gaze fixed on the body as she pieced the puzzle together. Tomas, a neutral information broker, caught in the crosshairs of unseen forces. The precision of the kill, the lack of struggle. She shook her head
slightly
. This was no ordinary homicide. "Detective?" Eva's voice was hesitant. "What are you thinking?" Harlow rose to her feet, her leather
watch
glinting
in the flickering light. "I'm thinking we need to take a closer look at this place." She cast a sidelong glance at the young woman. "And I could use an expert on the occult to help me
navigate
it." Eva blinked, then straightened her shoulders, a hint of resolve hardening her features. "What do you need me to do?" Harlow's lips quirked in the faintest of smiles. "I have a feeling this is only the beginning." She turned and strode deeper into the Veil Market, her senses on high alert. The evidence was scant, the clues elusive. But Harlow Quinn was not one to be deterred. If there was a supernatural killer stalking these shadows, she would find them — no matter what it took.
created_at
"2026-02-17T01:47:23.04484+00:00"
2/17/2026, 1:47:23 AM
model
"anthropic/claude-3-haiku"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
283
moderation_latency
(null)
generation_time
8167
tokens_prompt
923
tokens_completion
1282
native_tokens_prompt
937
native_tokens_completion
1298
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.00185675
router
(null)
provider_responses
0
id
"msg_011YzjFkoxfXk2FTjhitT1bv"
status
200
is_byok
false
latency
283
endpoint_id
"8661a1db-b0cf-4eb2-ba04-c2a79f698682"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-3-haiku"
api_type
"completions"
id
"gen-1771292833-gsfojuJl7kIAWEewf2Bd"
upstream_id
"msg_011YzjFkoxfXk2FTjhitT1bv"
total_cost
0.00185675
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
4
adverbTagCount
0
adverbTags
(empty)
52.6627%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
845
totalAiIsmAdverbs
4
found
0
adverb
"hesitantly"
count
1
1
adverb
"nervously"
count
1
2
adverb
"quickly"
count
1
3
adverb
"slightly"
count
1
highlights
0
"hesitantly"
1
"nervously"
2
"quickly"
3
"slightly"
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)
28.9941%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
845
totalAiIsms
6
found
0
word
"glinting"
count
1
1
word
"cataloged"
count
1
2
word
"furrowed"
count
3
3
word
"navigate"
count
1
highlights
0
"glinting"
1
"cataloged"
2
"furrowed"
3
"navigate"
0.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
6
maxInWindow
6
found
0
label
"eyes widened/narrowed"
count
5
1
label
"air was thick with"
count
1
highlights
0
"eyes narrowed"
1
"eyes widened"
2
"The air was thick with"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
54
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
0
narrationSentences
54
filterMatches
0
"watch"
hedgeMatches
(empty)
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
0
totalSentences
72
matches
(empty)
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
28
mean
30.14
std
16.28
cv
0.54
sampleLengths
0
46
1
58
2
15
3
33
4
24
5
17
6
33
7
14
8
26
9
69
10
9
11
40
12
14
13
28
14
18
15
31
16
33
17
58
18
21
19
22
20
39
21
7
22
46
23
9
24
48
25
20
26
17
27
49
96.2963%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
3
totalSentences
54
matches
0
"been slashed"
1
"were untouched"
2
"was cauterized"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
0
totalVerbs
87
matches
(empty)
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
577
adjectiveStacks
0
stackExamples
(empty)
adverbCount
11
adverbRatio
0.019064124783362217
lyAdverbCount
8
lyAdverbRatio
0.01386481802426343
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
72
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
72
mean
11.72
std
6.66
cv
0.568
sampleLengths
0
28
1
18
2
28
3
13
4
17
5
15
6
24
7
9
8
5
9
19
10
4
11
13
12
23
13
10
14
8
15
6
16
15
17
11
18
24
19
17
20
10
21
5
22
13
23
9
24
5
25
24
26
11
27
3
28
11
29
8
30
20
31
11
32
7
33
4
34
27
35
11
36
22
37
15
38
12
39
3
40
3
41
16
42
9
43
14
44
7
45
14
46
8
47
3
48
19
49
9
70.3704%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
1
diversityRatio
0.4305555555555556
totalSentences
72
uniqueOpeners
31
50.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
4
fancyCount
2
fancyTags
0
"she murmured, half to herself (murmur)"
1
"Eva supplied, her fingers tightening on the strap of her satchel (supply, tighten)"
82.2543%