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Run: 2026-02-17-01KHMRCDWV3N5MJDV868MB8P3E
Run Details
Model:
Claude Opus 4.5
Test:
Bad Writing Habits
Scenario:
Mystery: examining a crime scene
Duration:
53.3s
Cost:
$0.066685
Provider:
Amazon Bedrock
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
The abandoned platform str
etched
before Detective Harlow Quinn like a cathedral of neglect, its Victorian tilework still visible beneath decades of grime and graffiti. She ducked under the police tape, her worn leather
watch
catching the harsh glare of the portable work
lights that forensics
had set up along the platform's edge. "Mind the third rail," the uniformed constable said, though they both knew the power had been cut to this section of tunnel for forty years. Quinn didn't acknowledge him. Her attention had already fixed on the body sprawled at the center of the platform, positioned with what seemed like deliberate care beneath the station's original destination board. The letters had long since faded, but she could still make out the ghost of the name: CAMDEN TOWN NORTH. Except there was no Camden Town North station. Never had been, according to Transport for London's records. She'd checked twice on the drive over. The victim was a white male, mid-thirties, dressed in clothes that looked expensive but carried the subtle shabbiness of garments worn too often and cleaned too rarely. His eyes were open, fixed on the vaulted ceiling with an expression that Quinn had learned to read over eighteen years of service. Not fear. Not pain. Wonder. She'd
seen that look
once before, three years ago, on DS Morris's face. Quinn pushed the memory aside and crouched beside the body, pulling on nitrile gloves with the practiced efficiency of long habit. The cause of death wasn't immediately apparent. No visible wounds, no signs of struggle, no indication of what had drawn a man dressed in Italian leather shoes to an underground platform that officially didn't exist. "Detective Quinn." She looked up to find Eva Kowalski picking her way across the platform, a worn leather satchel slung across her body and her curly red hair escaping from beneath a knitted cap. The young woman's round glasses caught the work lights, turning her eyes into mirrors before she adjusted her angle and Quinn could see the green irises beneath, sharp with intelligence and poorly concealed anxiety. "Dr. Kowalski." Quinn rose to her full height, using the three inches she had on the researcher to establish the dynamic she preferred. "The British Museum sending consultants to crime scenes now?" Eva tucked a strand of hair behind her left ear—a nervous habit Quinn had catalogued during their first meeting, six months ago, when the museum's restricted archives had become relevant to a case involving stolen antiquities. "DI Crawford called me. Said there were some... unusual symbols at the scene." "Crawford." Quinn let the name hang in the air like an accusation. The detective inspector had been increasingly willing to bring in outside expertise on cases that defied conventional explanation. Quinn didn't care for the implication. "And what exactly qualifies a research assistant in ancient history to consult on a homicide?" "My master's thesis was on protective symbology in Romano-British burial practices." Eva's voice steadied as she moved onto academic ground. "Crawford said the markings here might be relevant." Quinn stepped aside, gesturing toward the body with a sweep of her arm. "Then by all means. Illuminate us." Eva approached the victim with the careful respect of someone accustomed to handling fragile things. She crouched where Quinn had crouched moments before, but her attention went not to the body itself but to the platform around it. Quinn
watch
ed her trace a circle in the air, following a pattern that became visible only when you knew to look for it: a series of symbols scratched into the tilework, forming a ring perhaps eight feet in diameter with the victim at its center. "These aren't burial markings," Eva said quietly. "They're wards. Protective sigils meant to contain something." "Contain what?" Eva didn't answer immediately. She pulled a small notebook from her satchel, flipping through pages covered in cramped handwriting until she found what she
was looking
for. Quinn caught glimpses of diagrams, sketches of symbols not unlike the ones on the platform floor. "I'd need more time to be certain, but this pattern..." Eva pointed to a cluster of marks near the victim's left hand. "It's designed to hold something in place. To anchor it." Quinn felt the familiar itch at the base of her skull that told her she was missing something important. She turned away from Eva and began a slow circuit of the crime scene, cataloguing details with the
systematic
precision that had earned her three commendations and the grudging respect of colleagues who found her difficult to work with. The platform showed signs of recent use that contradicted its supposed abandonment. The dust had
been disturbed
by multiple sets of footprints, some of them bare, converging on the central circle from various points along the tunnel. Candle stubs had
been collected
as evidence, but Quinn could see the wax drippings that marked their positions: another circle, smaller, nested within the first. Near the platform's edge, something glinted in the portable lights. Quinn crouched, pulled an evidence bag from her pocket, and
carefully
retrieved a small brass object half-buried in accumulated debris. A compass, its casing covered in a patina of verdigris that spoke of age, its face
etched
with markings that matched nothing in any navigational tradition she recognized. "Dr. Kowalski." Eva looked up from her examination of the symbols. "What do you make of this?" Eva crossed to where Quinn crouched, and her sharp intake of breath told Quinn e
very
thing she needed to know about whether the object was significant. "Where did you find that?" "Answer the question." Eva's hand moved toward the compass, then stopped. She tucked her hair behind her ear again, twice in quick succession. "It's... I've seen references to objects like this. In the archives. They're called Veil Compasses. They're supposed to point toward—" She stopped herself. "They're supposed to be fictional. Symbolic. Part of a mythology that certain occult circles take more seriously than academic historians do." "And yet here one is." Quinn dropped the compass into the evidence bag and sealed it. "Fictional objects have a way of becoming concrete when they're found three feet from a corpse." She stood, turning to face Eva directly. The researcher's face had gone pale beneath her freckles, and Quinn recognized the expression: someone who had just realized they knew more than they wanted to about something dangerous. "There's a market," Eva said quietly. "An underground market that sells... unusual items. It's supposed to operate out of abandoned spaces in the city. Moves locations e
very
full moon." "And you know this how?" "I study the occult, Detective. Not because I believe in magic, but because people who do believe in magic do
very
real things based on those beliefs." Eva's voice had taken on a defensive edge. "Scholars have been tracking references to the Veil Market for decades. It's mentioned in restricted texts going back to the Victorian era." Quinn looked around the platform with new eyes. The Victorian tilework. The station that didn't exist. The symbols on the floor, arranged with deliberate care around a body positioned like an offering on an altar. "When was the last full moon?" "Three nights ago." Quinn nodded
slowly
. The timeline fit. Three nights was enough for a body to reach the state of rigor she'd observed, assuming ambient temperature in the tunnel—she'd need the medical examiner's report to confirm, but the preliminary picture
was taking
shape. "Someone came here for the market," she said, thinking aloud. "Found something they weren't supposed to find. Or saw something they weren't supposed to see." "Or," Eva said
carefully
, "someone brought them here. As part of whatever ritual those symbols are meant to facilitate." Quinn turned
sharply
. "You said they were protective wards. Meant to contain something." "They are. But containment goes both ways." Eva pointed to the inner circle of candle drippings. "If you're trying to anchor something, you need something to anchor it to. A focus. A..." She trailed off, her face going paler still. "A sacrifice," Quinn finished. The word
hung in the air
between them, its
weight
out of proportion to its syllables. Quinn had seen her share of violence over eighteen years. Murders driven by passion, by greed, by the simple brutal mathematics of drug deals gone wrong. But this was different. This had the quality of ceremony, of purpose that extended beyond the merely criminal. She thought of Morris again. Of the way he'd looked when they found him in that warehouse in Whitechapel, surrounded by symbols she'd never been able to identify, his face wearing that same expression of wonder. The case had gone cold. Officially, it remained unsolved. Unofficially, Quinn had spent three years following threads that led nowhere—or rather, that led to places like this. Places that shouldn't exist, filled with people who believed in things that couldn't be real. "The victim's personal effects," she said, turning to the forensics technician who had been studiously ignoring their conversation. "Anything that might identify him?" "No wallet, no phone, no keys." The technician shrugged. "We did find this in his jacket pocket." He held up another evidence bag, this one containing a small object that Quinn couldn't immediately identify. She took the bag and held it up to the light. A bone. Small, polished to a smooth ivory finish, carved with symbols that matched the ones on the compass. "What
is that?" she
asked Eva. The researcher's voice came out
barely above a whisper
. "It's a token. For entry to the Veil Market." Quinn sealed the evidence bag and tucked it into her coat pocket alongside the compass. Around her, the abandoned station
seemed to
press closer, its shadows deeper than the work lights could fully banish. "I think," she said
slowly
, "that you and I need to have a longer conversation about what exactly your archives contain, Dr. Kowalski." Eva met her eyes, and Quinn saw something there that might have been relief—the unburdening of someone who had carried secrets alone for too long. "I think you're right," Eva said. "But not here. There are... protocols. Things I'm not supposed to discuss outside of certain contexts." "Then we'll find the appropriate context." Quinn turned to the forensics team. "I want e
very
thing documented. E
very
symbol, e
very
marking, e
very
grain of unusual dust. If this platform doesn't exist on any official record, I want to know who knows it does exist and how they found out." She took one last look at the victim, at his expression of wonder that death had preserved like amber. "And find out who he was. Someone's missing him by now." The victim's eyes stared at the ceiling, at something only he had seen in his final moments. Quinn didn't believe in the supernatural. She believed in evidence, in deduction, in the patient accumulation of facts until a picture emerged from the chaos. But as she climbed the access ladder back toward the world above, the
weight
of the compass and the bone token in her pocket felt less like evidence and more like an invitation. One she suspected she would be unable to refuse.
created_at
"2026-02-17T02:56:23.684898+00:00"
2/17/2026, 2:56:23 AM
model
"anthropic/claude-4.5-opus-20251124"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1919
moderation_latency
124
generation_time
53145
tokens_prompt
923
tokens_completion
2929
native_tokens_prompt
937
native_tokens_completion
2480
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
0.066685
router
(null)
provider_responses
0
id
"8fa874d3-f866-48af-9480-8c1a25293c4d"
status
200
is_byok
false
latency
1918
endpoint_id
"de32581c-2e11-4f54-8d29-e8a6e19d3038"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-opus-20251124"
api_type
"completions"
id
"gen-1771296929-YPeQVlumqExKZls5jwIH"
upstream_id
"8fa874d3-f866-48af-9480-8c1a25293c4d"
total_cost
0.066685
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
0.0000%
Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags
10
adverbTagCount
5
adverbTags
0
"Eva said quietly [quietly]"
1
"Eva said quietly [quietly]"
2
"Eva said carefully [carefully]"
3
"she said, turning to the forensics technician who had been studiously ignoring their conversation [studiously]"
4
"she said slowly [slowly]"
62.3251%
AI-ism adverb frequency
Target: <1% AI-ism adverbs (57 tracked)
wordCount
1858
totalAiIsmAdverbs
7
found
0
adverb
"carefully"
count
2
1
adverb
"sharply"
count
1
2
adverb
"slowly"
count
2
3
adverb
"barely above a whisper"
count
1
4
adverb
"very"
count
1
highlights
0
"carefully"
1
"sharply"
2
"slowly"
3
"barely above a whisper"
4
"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)
78.4715%
AI-ism word frequency
Target: <1% AI-ism words (140 tracked)
wordCount
1858
totalAiIsms
4
found
0
word
"systematic"
count
1
1
word
"weight"
count
2
2
word
"etched"
count
1
highlights
0
"systematic"
1
"weight"
2
"etched"
100.0000%
Cliche density
Target: ≤1 cliche(s) per 800-word window
totalCliches
1
maxInWindow
1
found
0
label
"hung in the air"
count
1
highlights
0
"hung in the air"
100.0000%
Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells
0
narrationSentences
97
matches
(empty)
100.0000%
Filter word density
Target: ≤12% sentences with filter/hedge words
filterCount
1
hedgeCount
1
narrationSentences
97
filterMatches
0
"watch"
hedgeMatches
0
"seemed to"
100.0000%
Overuse of "that" (subordinate clause padding)
Target: ≤10% sentences with "that" clauses
thatCount
3
totalSentences
125
matches
0
"lights that forensics"
1
"seen that look"
2
"is that?\" she"
100.0000%
Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs
61
mean
30.34
std
20.81
cv
0.686
sampleLengths
0
52
1
25
2
52
3
24
4
55
5
13
6
56
7
2
8
66
9
32
10
49
11
51
12
28
13
19
14
83
15
15
16
2
17
43
18
32
19
58
20
62
21
58
22
2
23
9
24
6
25
25
26
5
27
3
28
64
29
32
30
36
31
29
32
5
33
57
34
35
35
6
36
3
37
41
38
25
39
19
40
13
41
40
42
4
43
60
44
78
45
23
46
17
47
28
48
19
49
6
100.0000%
Passive voice overuse
Target: ≤5% passive sentences
passiveCount
2
totalSentences
97
matches
0
"been disturbed"
1
"been collected"
100.0000%
Past progressive (was/were + -ing) overuse
Target: ≤10% past progressive verbs
pastProgressiveCount
2
totalVerbs
239
matches
0
"was looking"
1
"was taking"
100.0000%
Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount
1385
adjectiveStacks
0
stackExamples
(empty)
adverbCount
53
adverbRatio
0.038267148014440436
lyAdverbCount
24
lyAdverbRatio
0.017328519855595668
100.0000%
Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences
125
echoCount
0
echoWords
(empty)
100.0000%
Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences
125
mean
14.81
std
9.73
cv
0.657
sampleLengths
0
24
1
28
2
25
3
4
4
28
5
20
6
8
7
9
8
7
9
27
10
23
11
2
12
2
13
1
14
13
15
21
16
7
17
28
18
2
19
32
20
34
21
23
22
9
23
36
24
13
25
12
26
18
27
6
28
15
29
20
30
8
31
13
32
6
33
15
34
23
35
45
36
7
37
8
38
2
39
4
40
23
41
16
42
22
43
10
44
19
45
39
46
12
47
25
48
25
49
10
68.8000%
Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats
4
diversityRatio
0.432
totalSentences
125
uniqueOpeners
54
0.0000%
Dialogue tag variety (said vs. fancy)
Target: ≤30% fancy dialogue tags
totalTags
10
fancyCount
8
fancyTags
0
"the uniformed constable said, though they both knew the power had been cut to this section of tunnel for forty years (uniform say, know be)"
1
"Eva said quietly (say quietly)"
2
"Eva said quietly (say quietly)"
3
"she said, thinking aloud (say, think)"
4
"Eva said carefully (say carefully)"
5
"Quinn finished (finish)"
6
"she said, turning to the forensics technician who had been studiously ignoring their conversation (say, turn studiously ignore)"
7
"she said slowly (say slowly)"
82.9174%