Run: 2026-04-24-01KQ0P2PWQH6A0FBRPD6ZEYQVX

Run Details

Duration:
1m 14s
Cost:
$0.090265
Provider:
OpenAI

Model input

System
You are an expert and award-winning novel writer in the dark Mystery genre. Your readers are hooked on your stories and can't wait to read the book you have in store. <important> - MUST: Start each chapter in medias res (in the middle of action). AVOID talking about the weather, time of day, the position of the sun, or other boring stuff. - The instructions/summary are just a that, a summary. Feel free to add details, stretch sections and add interesting transitions/descriptions/fillers. - When called for it, have fast-paced action, but otherwise take things slow. This is an experience, and not for people with short attention spans. Enjoy the wine, not slurp Red Bull. - Add descriptions when transitioning places/times/etc, or when coming by new places (e.g. a corner shop, a cafe, etc.). But remember: NOT at the start or end of a chapter. - MUST: AVOID ending in internal monologue, reminiscing or waiting for the next day. A good chapter end is when we're ending right when shit hits the fan. We want to have the reader be excited for what comes next. So no reminiscing, contemplating or summarizing the day. It's popcorn time! </important>
User/Human
Take into account the following glossary of characters/locations/items/lore... when writing your response: <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> <proseGuidelines> <styleGuide> - Write in past tense and use British English spelling and grammar - Keep a Flesch reading ease score of 60 - Respect the the Royal Order of Adjectives: The order is: opinion, size, age, shape, color, origin, material, purpose, followed by the noun itself (e.g., "a lovely little old rectangular green French silver whittling knife") - Respect the ablaut reduplication rule (e.g. tick-tock, flip-flop) - Write in active voice - Passive voice: <bad>The book was read by Sarah.</bad> - Active voice: <good>Sarah read the book.</good> - Reduce the use of passive verbs - <bad>For a moment, I was tempted to throw in the towel.</bad> - <good>For a moment, I felt tempted to throw in the towel.</good> - Avoid misplaced modifiers that can cause confusion when starting with "-ing" words: - <bad>Considering going to the store, the empty fridge reflected in Betty's eyes.</bad> - <good>Betty stared into the empty fridge. It was time to go to the store.</good> - Avoid redundant adverbs that state the obvious meaning already contained in the verb: - <bad>She whispered quietly to her mom.</bad> - <good>She whispered to her mom.</good> - Use stronger, more descriptive verbs over weak ones: - <bad>Daniel drove quickly to his mother's house.</bad> - <good>Daniel raced to his mother's house.</good> - Omit adverbs that don't add solid meaning like "extremely", "definitely", "truly", "very", "really": - <bad>The movie was extremely boring.</bad> - <good>The movie was dull.</good> - Use adverbs to replace clunky phrasing when they increase clarity: - <bad>He threw the bags into the corner in a rough manner.</bad> - <good>He threw the bags into the corner roughly.</good> - Avoid making simple thoughts needlessly complex: - <bad>After I woke up in the morning the other day, I went downstairs, turned on the stove, and made myself a very good omelet.</bad> - <good>I cooked a delicious omelet for breakfast yesterday morning.</good> - Never backload sentences by putting the main idea at the end: - <bad>I decided not to wear too many layers because it's really hot outside.</bad> - <good>It's sweltering outside today, so I dressed light.</good> - Omit nonessential details that don't contribute to the core meaning: - <bad>It doesn't matter what kind of coffee I buy, where it's from, or if it's organic or not—I need to have cream because I really don't like how the bitterness makes me feel.</bad> - <good>I add cream to my coffee because the bitter taste makes me feel unwell.</good> - Always follow the "show, don't tell" principle. For instance: - Telling: <bad>Michael was terribly afraid of the dark.</bad> - Showing: <good>Michael tensed as his mother switched off the light and left the room.</good>- Telling: <bad>I walked through the forest. It was already Fall, and I was getting cold.</bad> - Showing: <good>Dry orange leaves crunched under my feet. I pulled my coat's collar up and rubbed my hands together.</good>- Add sensory details (sight, smell, taste, sound, touch) to support the "showing" (but keep an active voice) - <bad>The room was filled with the scent of copper.</bad> - <good>Copper stung my nostrils. Blood. Recent.</good> - Use descriptive language more sporadically. While vivid descriptions are engaging, human writers often use them in bursts rather than consistently throughout a piece. When adding them, make them count! Like when we transition from one location to the next, or someone is reminiscing their past, or explaining a concept/their dream... - Avoid adverbs and clichés and overused/commonly used phrases. Aim for fresh and original descriptions. - Avoid writing all sentences in the typical subject, verb, object structure. Mix short, punchy sentences with long, descriptive ones. Drop fill words to add variety. Like so: <good>Locked. Seems like someone doesn't want his secrets exposed. I can work with that.</good> - Convey events and story through dialogue. It is important to keep a unique voice for every character and make it consistent. - Write dialogue that reveals characters' personalities, motivations, emotions, and attitudes in an interesting and compelling manner - Leave dialogue unattributed. If needed, only use "he/she said" dialogue tags and convey people's actions or face expressions through their speech. Dialogue always is standalone, never part of a paragraph. Like so: - <bad>"I don't know," Helena said nonchalantly, shrugging her shoulders</bad> - <good>"No idea" "Why not? It was your responsibility"</good> - Avoid boring and mushy dialog and descriptions, have dialogue always continue the action, never stall or include unnecessary fluff. Vary the descriptions to not repeat yourself. Avoid conversations that are just "Let's go" "yes, let's" or "Are you ready?" "Yes I'm ready". Those are not interesting. Think hard about every situtation and word of text before writing dialogue. If it doesn't serve a purpose and it's just people talking about their day, leave it. No one wants to have a normal dinner scene, something needs to happen for it to be in the story. Words are expensive to print, so make sure they count! - Put dialogue on its own paragraph to separate scene and action. - Use body language to reveal hidden feelings and implied accusations- Imply feelings and thoughts, never state them directly - NEVER use indicators of uncertainty like "trying" or "maybe" - NEVER use em-dashes, use commas for asides instead </styleGuide> <voiceGuide> Each character in the story needs to have distinct speech patterns: - Word choice preferences - Sentence length tendencies - Cultural/educational influences - Verbal tics and catchphrases Learn how each person talks and continue in their style, and use their Codex entries as reference. <examples> - <bad>"We need to go now." "Yes, we should leave." "I agree."</bad> <good>"Time's up." "Indeed, our departure is rather overdue." "Whatever, let's bounce."</good> - Power Dynamic Example: <bad> "We need to discuss the contract." "Yes, let's talk about it." "I have concerns." </bad> <good> "A word about the contract." "Of course, Mr. Blackwood. Whatever you need." "The terms seem..." A manicured nail tapped the desk. "Inadequate." "I can explain every-" "Can you?" </good> </examples> </voiceGuide> <dialogueFlow> When writing dialogue, consider that it usually has a goal in mind, which gives it a certain flow. Make dialogue sections also quite snappy in the back and forth, and don't spread the lines out as much. It's good to have details before, after, or as a chunk in-between, but we don't want to have a trail of "dialogue breadcrumbs" spread throughout a conversation. <examples> - Pattern 1 - Question/Deflection/Revelation: <good> "Where were you last night?" "Work. The usual." "Lipstick's an interesting shade for spreadsheets." </good> - Pattern 2 - Statement/Contradiction/Escalation: <good> "Your brother's clean." "Tommy doesn't touch drugs." "I'm holding his tox screen." </good> - Pattern 3 - Observation/Denial/Truth: <good> "That's a new watch." "Birthday gift." "We both know what birthdays mean in this business." </good> - Example - A Simple Coffee Order: <bad> "I'll have a coffee." "What size?" "Large, please." </bad> <good> "Black coffee.""Size?""Large. Been a long night." "That bodega shooting?" "You watch too much news." "My brother owns that store." </good> This short exchange: - Advances plot (reveals connection to crime) - Shows character (cop working late) - Creates tension (unexpected connection) - Sets up future conflict (personal stake) - Example - Dinner Scene: <bad> "Pass the salt." "Here you go." "Thanks." </bad> <good> "Salt?" "Perfect as is. Mother's recipe." "Mother always did prefer... bland things." "Unlike your first wife?" </good> - Example - Office Small Talk: <bad> "Nice weather today." "Yes, very nice." "Good for golf." </bad> <good> "Perfect golf weather." "Shame about your membership." "Temporary suspension. Board meets next week." "I know. I called the vote." </good> </examples> </dialogueFlow> <subtextGuide> - Layer dialogue with hidden meaning: <bad>"I hate you!" she yelled angrily.</bad> <good>"I made your favorite dinner." The burnt pot sat accusingly on the stove.</good> - Create tension through indirect communication: <bad>"Are you cheating on me?"</bad> <good>"Late meeting again?" The lipstick stain on his collar caught the light.</good> <examples> - Example 1 - Unspoken Betrayal: <bad> "Did you tell them about our plans?" "No, I would never betray you." "I don't believe you." </bad> <good> "Funny. Johnson mentioned our expansion plans today." "The market's full of rumors." "Mentioned the exact numbers, actually." The pen in his hand snapped. </good> - Example 2 - Failed Marriage: <bad> "You're never home anymore." "I have to work late." "I miss you." </bad> <good> "Your dinner's in the microwave. Again." "Meetings ran long." "They always do." She folded the same shirt for the third time. </good> - Example 3 - Power Struggle: <bad> "You can't fire me." "I'm the boss." "I'll fight this." </bad> <good> "That's my father's nameplate you're sitting behind." "Was." "The board meeting's on Thursday." </good> </examples> </subtextGuide> <sceneDetail> While writing dialogue makes things more fun, sometimes we need to add detail to not have it be a full on theatre piece. <examples> - Example A (Power Dynamic Scene) <good> "Where's my money?" The ledger snapped shut. "I need more time." "Interesting." He pulled out a familiar gold pocket watch. My mother's. "Time is exactly what you bargained with last month." "That was different-" "Was it?" The watch dangled between us. "Four generations of O'Reillys have wound this every night. Your mother. Your grandmother. Your great-grandmother.Shall we see who winds it next?" </good> - Example B (Action Chase) It's much better to be in the head of the character experiencing it, showing a bit of their though-process, mannerisms and personality: <good> Three rules for surviving a goblin chase in Covent Garden: Don't run straight. Don't look back. Don't let them herd you underground. I broke the first rule at Drury Lane. Rookie mistake. The fruit cart I dodged sailed into the wall behind me. Glass shattered. Someone screamed about insurance. *Tourist season's getting rough*, the scream seemed to say. Londoners adapt fast. "Oi! Market's closed!" The goblin's accent was pure East End. They're evolving. Learning. I spotted the Warren Street tube station sign ahead. *Shit.* There went rule three. </good> - Example C (Crime Scene Investigation) <good> "Greek." Davies snapped photos of the symbols. "No, wait. Reverse Greek." "Someone's been watching too many horror films." I picked up a receipt from the floor. Occult supply shop in Camden. Paid by credit card. *Amateur hour*. "Could be dangerous though," Davies said. "Remember Bristol?" "Bristol was Sanskrit. And actual cultists." I pointed to the nearest symbol. "This genius wrote 'darkness' backwards but used a Sigma instead of an S. It's summoning Instagram followers at best." "Speaking of followers..." Davies pointed to heavy foot traffic in the dust. Multiple sets. All new trainers. *Ah.* "Anyone check local uni paranormal societies?" </good> - Example D (Dialogue-heavy) <good> "Found your card in her wallet." The detective slid it across the table. Worn edges. Folded corner. Three years old at least. "Standard practice. I work missing persons." "Funny thing about missing persons.Eventually they stop being missing. Turn up in the Thames. Under motorways. In pieces." "I don't-" "You found four last year. All breathing." She opened a file. "This would've been your first dead one. If we hadn't found her first." The card felt heavier somehow. </good> </examples> </sceneDetail> <sceneOpenings> KEY RULE: Never open with more than one paragraph of description, no matter how beautiful. Description should be earned through action and dialogue. Instead of opening with setting description, open with: - A character doing something specific - A line of dialogue that raises questions - An unexpected observation - A moment of tension or conflict - Start with a hook that's 1-2 sentences maximum - Follow with a smaller paragraph that provides immediate context - Vary paragraph size from the start to create visual interest </sceneOpenings> </proseGuidelines> Write a chapter based on the following instructions: <instructions> 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. </instructions>

Model response

AI
“Don’t touch that.” Detective Harlow Quinn caught the constable’s wrist before his gloved fingers reached the dead man’s mouth. The young officer froze, bent over the body with a paper evidence bag in his other hand and sweat shining along his upper lip. “I thought it was a coin.” “It’s in his tongue.” The constable recoiled. His boot scraped grit across the old platform, and the sound travelled down the abandoned tunnel in a long, dry hiss. Harlow released him and crouched beside the corpse. The man lay half in, half out of a market stall made from rusted pram wheels, scaffolding poles, and faded velvet curtains. Someone had painted the stall sign by hand, but damp had eaten most of the letters. Only three remained: OTH. On the counter sat labelled jars of grey powder, a cracked porcelain bowl full of black feathers, and a string of small ivory-coloured tokens shaped like finger bones. Not ivory. Bone. “Ma’am?” Harlow glanced up. Detective Sergeant Lyle Rook stood two yards away with a torch in one hand and a notebook in the other. He had the broad, tired face of a man who trusted bad coffee more than people. His suit looked slept in, though knowing Rook, he had ironed it at midnight and ruined it by half past. “SOCO says we’ve got a stabbing,” Rook said. “Robbery gone ugly. This whole place looks like someone emptied a witch’s loft into a Tube station.” Harlow looked back at the dead man. “Does SOCO often find robbery victims with their hands arranged like altar pieces?” Rook clicked his tongue. “You’ve been in the job too long. Hands can fall funny.” “Both palms up. Thumbs tucked. Wrists parallel.” “Fine. Hands can be posed funny.” The corpse wore a long dark coat with too many inner pockets. His skin had a blue-grey cast beneath the grime. Sparse black hair clung to his scalp. His lips sat open around a small brass object wedged behind his lower teeth. Not a coin. Harlow angled her torch and studied the edge. A tiny hinge. A casing crusted with green patina. Protective sigils ran around its face in a neat ring. A compass. The needle did not point north. It trembled towards the black mouth of the tunnel behind her. Harlow’s left thumb brushed the worn leather watch on her wrist, once, then stopped. She disliked habits that announced themselves. “Who found him?” “British Transport Police got an anonymous call at 02:14. Male voice. Said there was a body at the old Camden deep-level platform.” Rook looked around. “Took them twenty minutes to find the entrance. Another ten to decide they wanted Met CID instead.” “Anonymous call from where?” “Burner. Pinged near Mornington Crescent, then vanished from the network.” “Convenient.” “London runs on convenience and murder.” Harlow rose. Her knees gave one sharp complaint. She ignored it. The abandoned Tube station beneath Camden had no business existing in this shape. The official entrance had long since vanished behind a locked service door, then a maintenance stair, then a brick-lined corridor that smelt of iron, wet dust, and something bitter enough to coat the tongue. Yet down here, past signs for platforms that no public map admitted, a whole market had once unfolded. Canvas awnings sagged between tiled pillars. Stalls lined the platform edge in crooked rows. Some sold metal trinkets, others wax-sealed bottles, folded fabrics that seemed to drink torchlight, and chipped mirrors covered in cloth. Chalk symbols marked the floor between pitches, smudged by many feet. The rails below had rusted into dark red seams, and old adverts peeled from the walls in strips, smiling women offering soap to a city that had forgotten them. Three uniformed officers had set up a cordon using blue-and-white tape between two pillars. The tape looked absurd here, too clean, too official, as if the Metropolitan Police had wandered into a fever dream and decided paperwork would help. “Any witnesses?” “None sticking around. Place was empty when BTP arrived.” “Markets don’t empty themselves.” “This one could. Look at it.” Harlow moved past the body to the nearest stall. Its surface held a shallow tray of tokens, each carved from pale bone and marked with a dark notch at one end. One space in the tray sat empty, dust outlining the missing shape. “Rook.” He stepped closer. “One missing.” “Buyer took it.” “Then why leave the money?” Beside the tray sat three folded notes and a silver ring with a red stone. Harlow did not touch them. She bent lower and breathed in through her nose. “Cinnamon,” Rook said. “Clove. Burnt clove.” “You can tell the difference at a murder scene?” “I can tell the difference in my kitchen.” “Didn’t know you had one.” She gave him a look. He wrote something down with a faint grin. “Clove, then.” Harlow returned to the body. The dead man’s right sleeve had ridden up, revealing a thin wrist marked by a bruise. Not a grip bruise. A clean line, as if someone had tied cord there and pulled hard. The other wrist bore the same mark. No fresh blood on either cuff. No defensive wounds across the hands. The fingers looked clean beneath the nails, trimmed close. A merchant, not a fighter. The stab wound sat below the ribs on the left side. One strike. Deep. The blood pattern spread across his shirt in a dark bloom, but the platform beneath him showed only a narrow pool. Too narrow. “Your robbery went wrong after someone took great care not to spill blood where he died.” Rook squatted beside her, torch beam steady. “He could’ve staggered from somewhere else.” “Look at his shoes.” The corpse wore pointed black leather boots polished to a dull shine. The soles carried dust, but no wet blood. Harlow lifted the hem of his coat with a pen. The rear edge had no smear trail. “No stagger.” “So carried.” “By whom?” Rook turned his torch across the floor. “Multiple footprints. We’ll get casts.” “Those aren’t carrying prints.” “How do you know?” “Weight changes a stride. Heel digs in, toe angle widens. Here?” She pointed to the dust between the stall and the body. “People walked, browsed, stopped. Someone cleaned the immediate area, badly, but they didn’t drag or carry him through it.” Rook shifted his beam. The platform dust showed a faint crescent around the corpse, a wiped patch. At its edges, old shoe prints cut off as if swallowed. “You’re saying he died right here.” “I’m saying he bled somewhere else while standing here.” Rook stared at her. “That sentence will need polishing for court.” Harlow leaned in close to the wound. The cut in the shirt ran vertical. The wound beneath angled up. Blood had soaked inward, not outward, along fibres stiff with dried residue. “Blade went in while he faced the killer. No struggle. He allowed them near.” “Market deal. Buyer gets greedy, seller gets dead.” “The killer didn’t take the stock.” “Could’ve wanted the compass.” “Then why leave it in his mouth?” Rook scratched the side of his jaw with the back of his pen. “Message.” “Or gag.” The word settled between them. A SOCO in white coveralls approached from behind the cordon, stepping like a man crossing a frozen pond. “Detective Quinn? We’ve got preliminary photos. Also, you’ll want to see the north end.” “What’s at the north end?” “A door.” “This is a station. Doors aren’t rare.” “This one wasn’t there ten minutes ago.” Rook shut his notebook. “See, that’s the sort of statement that ruins a simple stabbing.” Harlow followed the SOCO along the platform, past stalls that seemed abandoned in haste. A tin cup lay on its side beside a heap of dried beetles. A brass weighing scale still held a pinch of blue salt. Someone had dropped a glove made from soft grey leather, too long in the fingers. As they passed, Harlow noticed every stall had one item missing. One bottle from a row. One charm from a hook. One folded scrap from a locked case. Not looting. Selection. The north end of the platform narrowed near a bricked-up tunnel arch. Old tiles bore the ghost of a station name scraped away letter by letter. On the wall beside it stood a narrow door painted the same sickly cream as the tiles. No handle. No hinges. No frame gap. A door shape, not a door. Rook walked around the SOCO and frowned. “You’re having me on.” “I photographed that wall when we entered,” the SOCO said. “Plain brick. I’ve got timestamps.” Harlow stepped closer. The air near the painted door carried the same burnt clove scent, stronger now. Her ears caught a faint tick-tock, though no clock hung nearby. Her own watch had stopped at 3:17. The second hand trembled against the mark, held there by a force she could not name and refused to dignify. Three years ago, DS Morris had walked into a locked warehouse in Deptford and called her from inside a room that did not exist on the building plan. By the time she broke the door down, his phone lay on the floor, still warm, and his blood drew a circle around an empty chair. No body. No suspect. No acceptable explanation. Rook looked at her wrist. “Your watch gone?” “Focus on the wall.” “Quinn.” “Focus.” He did. His mouth tightened, but he lifted the torch. At the base of the door shape, dust had gathered in a thin ridge. Harlow crouched and pointed. “Someone stood here.” Rook knelt beside her. “One person?” “One pair of feet. Small. Narrow sole. Not our victim.” She traced the pattern without touching it. The prints faced the wall. Close together. Waiting posture. Then a second mark, deeper at the toe. “They pushed forward.” “Into a wall.” “Through a door that wasn’t here for your photo.” Rook blew out a breath. “You hear yourself?” “All day.” The SOCO shifted behind them. “There’s residue.” Harlow looked where he indicated. A faint smear marked the tile to the left of the door. Not blood. Dark, waxy, like soot mixed with oil. She brought her torch close and saw tiny flecks embedded in it. Red hair. One curled strand clung to the smear. “Bag that.” The SOCO nodded. Rook watched her face. “You know something.” “I know red hair grows on more than one head in London.” “That wasn’t an answer.” “It wasn’t meant as one.” Her phone buzzed inside her coat. She pulled it out, saw the screen, and went still. UNKNOWN NUMBER. The message contained no words. Only a photograph. It showed Harlow from behind, crouched before the false door, Rook beside her, the SOCO standing guard. Whoever had taken it had stood at the far end of the platform, near the body. She turned at once. The platform stretched behind them in a ragged corridor of torchlight and shadow. The uniforms by the cordon spoke in low voices. The corpse lay beneath its velvet-draped stall, one arm now hidden by a SOCO screen. No photographer. Another buzz. This time, a short video loaded. The dead merchant sat upright in the stall. His eyes stared milk-white. His jaw worked around the small brass compass. A wet click came from his throat before he spat the thing into his palm. Then he spoke, in a voice like coins shaken in a glass. “Tell Quinn the Morris debt remains unpaid.” The video ended. Rook had seen enough over her shoulder for his face to drain of colour. “What the hell is that?” Harlow strode back towards the body. Rook followed, swearing under his breath. The uniforms straightened as she approached, one hand already moving to his baton because fear liked props. “Move the screen.” The nearest SOCO looked up. “We’re still photographing.” “Move it.” He hesitated only a second, then dragged the white screen aside. The corpse lay where they had left it. Mouth open. Compass still wedged behind his teeth. No, not wedged. Harlow crouched. The compass face had turned. The needle no longer pointed towards the tunnel behind her. It pointed north, straight down the platform, straight at the painted door. Rook stood over her shoulder. “Someone moved it.” “No one crossed the cordon.” “Then someone inside the cordon.” Harlow scanned the officers, the SOCOs, the dead man’s stall, the dust beneath every boot. Her gaze stopped on the tray of bone tokens. The empty space no longer sat empty. A token had returned. Fresh blood filled its carved notch. “Rook.” He followed her stare. The token twitched. Once. Twice. Then every stall in the Veil Market answered. Bottles rattled. Feathers rose in their bowls. The covered mirrors shuddered beneath their cloths. From the north end came the scrape of a door opening in a wall that had never held one, and from the darkness beyond it, someone with a woman’s voice began to scream Harlow’s name.
created_at"2026-04-24T21:24:36.387Z" 4/24/2026, 9:24:36 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3833
moderation_latency(null)
generation_time73776
tokens_prompt4671
tokens_completion3658
native_tokens_prompt4157
native_tokens_completion2892
native_tokens_completion_images0
native_tokens_reasoning62
native_tokens_cached3840
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"completed"
usage0.090265
router(null)
provider_responses
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endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_06e95eec9a3c4f0f0169ebdf94a04481968d886b25626cc7ab"
is_byokfalse
latency343
model_permaslug"openai/gpt-5.5-20260423"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777065876-LY1mgFDFYlMM6w4J1oGr"
session_id(null)
api_type"completions"
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upstream_id"resp_06e95eec9a3c4f0f0169ebdf94a04481968d886b25626cc7ab"
total_cost0.090265
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provider_name"OpenAI"
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Evaluation details

Result Evaluator Details Meta Data
100.00% Adverbs in dialogue tags
Target: ≤10% dialogue tags with adverbs
totalTags5
adverbTagCount1
adverbTags
0"Rook looked around [around]"
dialogueSentences88
tagDensity0.057
leniency0.114
rawRatio0.2
effectiveRatio0.023
100.00% AI-ism adverb frequency
Target: <2% AI-ism adverbs (58 tracked)
wordCount2157
totalAiIsmAdverbs0
found(empty)
highlights(empty)
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)
79.14% AI-ism word frequency
Target: <2% AI-ism words (290 tracked)
wordCount2157
totalAiIsms9
found
0
word"velvet"
count2
1
word"porcelain"
count1
2
word"trembled"
count2
3
word"weight"
count1
4
word"charm"
count1
5
word"traced"
count1
6
word"scanned"
count1
highlights
0"velvet"
1"porcelain"
2"trembled"
3"weight"
4"charm"
5"traced"
6"scanned"
100.00% Cliché density
Target: ≤1 cliche(s) per 800-word window
totalCliches0
maxInWindow0
found(empty)
highlights(empty)
100.00% Emotion telling (show vs. tell)
Target: ≤3% sentences with emotion telling
emotionTells0
narrationSentences189
matches(empty)
100.00% Filter word density
Target: ≤3% sentences with filter/hedge words
filterCount1
hedgeCount2
narrationSentences189
filterMatches
0"watch"
hedgeMatches
0"seemed to"
1"began to"
100.00% Gibberish response detection
Target: ≤1% gibberish-like sentences (hard fail if a sentence exceeds 800 words)
analyzedSentences272
gibberishSentences0
adjustedGibberishSentences0
longSentenceCount0
runOnParagraphCount0
giantParagraphCount0
wordSaladCount0
repetitionLoopCount0
controlTokenCount0
repeatedSegmentCount0
maxSentenceWordsSeen35
ratio0
matches(empty)
100.00% Markdown formatting overuse
Target: ≤5% words in markdown formatting
markdownSpans0
markdownWords0
totalWords2157
ratio0
matches(empty)
100.00% Missing dialogue indicators (quotation marks)
Target: ≤10% speech attributions without quotation marks
totalAttributions10
unquotedAttributions0
matches(empty)
66.67% Name drop frequency
Target: ≤1.0 per-name mentions per 100 words
totalMentions60
wordCount1653
uniqueNames14
maxNameDensity1.33
worstName"Harlow"
maxWindowNameDensity3
worstWindowName"Rook"
discoveredNames
Harlow22
Quinn1
Sergeant1
Lyle1
Rook21
Tube1
Camden1
Metropolitan1
Police1
Morris1
Deptford1
Veil1
Market1
One6
persons
0"Harlow"
1"Quinn"
2"Sergeant"
3"Lyle"
4"Rook"
5"Camden"
6"Police"
7"Morris"
8"Market"
places
0"Deptford"
1"Veil"
globalScore0.835
windowScore0.667
100.00% Narrator intent-glossing
Target: ≤2% narration sentences with intent-glossing patterns
analyzedSentences114
glossingSentenceCount2
matches
0"fabrics that seemed to drink torchlight, and chipped mirrors covered in cloth"
1"seemed abandoned in haste"
100.00% "Not X but Y" pattern overuse
Target: ≤1 "not X but Y" per 1000 words
totalMatches0
per1kWords0
wordCount2157
matches(empty)
100.00% Overuse of "that" (subordinate clause padding)
Target: ≤2% sentences with "that" clauses
thatCount0
totalSentences272
matches(empty)
100.00% Paragraph length variance
Target: CV ≥0.5 for paragraph word counts
totalParagraphs154
mean14.01
std17.47
cv1.247
sampleLengths
03
140
26
34
432
570
62
71
81
93
1056
1125
1220
1315
147
156
1672
172
1817
1920
203
2142
224
2310
241
256
2611
2765
2874
2939
302
319
324
336
3443
351
363
372
383
395
4029
413
423
439
448
455
465
4710
4871
4935
100.00% Passive voice overuse
Target: ≤2% passive sentences
passiveCount0
totalSentences189
matches(empty)
100.00% Past progressive (was/were + -ing) overuse
Target: ≤2% past progressive verbs
pastProgressiveCount0
totalVerbs250
matches(empty)
100.00% Em-dash & semicolon overuse
Target: ≤2% sentences with em-dashes/semicolons
emDashCount0
semicolonCount0
flaggedSentences0
totalSentences272
ratio0
matches(empty)
94.00% Purple prose (modifier overload)
Target: <4% adverbs, <2% -ly adverbs, no adj stacking
wordCount1663
adjectiveStacks1
stackExamples
0"small ivory-coloured tokens"
adverbCount44
adverbRatio0.026458208057727
lyAdverbCount5
lyAdverbRatio0.003006614552014432
100.00% Repeated phrase echo
Target: ≤20% sentences with echoes (window: 2)
totalSentences272
echoCount0
echoWords(empty)
100.00% Sentence length variance
Target: CV ≥0.4 for sentence word counts
totalSentences272
mean7.93
std6.28
cv0.791
sampleLengths
03
116
224
36
44
53
621
78
822
916
104
1128
122
131
141
153
1620
1716
1820
198
2017
217
2213
234
2411
257
266
2712
289
297
3014
313
328
333
346
3510
362
376
3811
3914
406
413
4225
4317
444
4510
461
476
482
496
56.13% Sentence opener variety
Target: ≥60% unique sentence openers
consecutiveRepeats19
diversityRatio0.3786764705882353
totalSentences272
uniqueOpeners103
100.00% Adverb-first sentence starts
Target: ≥3% sentences starting with an adverb
adverbCount5
totalSentences161
matches
0"Only three remained: OTH."
1"Then a second mark, deeper"
2"Only a photograph."
3"Then he spoke, in a"
4"Then every stall in the"
ratio0.031
100.00% Pronoun-first sentence starts
Target: ≤30% sentences starting with a pronoun
pronounCount30
totalSentences161
matches
0"His boot scraped grit across"
1"He had the broad, tired"
2"His suit looked slept in,"
3"His skin had a blue-grey"
4"His lips sat open around"
5"It trembled towards the black"
6"She disliked habits that announced"
7"Her knees gave one sharp"
8"She ignored it."
9"Its surface held a shallow"
10"He stepped closer."
11"She bent lower and breathed"
12"She gave him a look."
13"He wrote something down with"
14"She pointed to the dust"
15"Her ears caught a faint"
16"Her own watch had stopped"
17"His mouth tightened, but he"
18"She traced the pattern without"
19"She brought her torch close"
ratio0.186
65.59% Subject-first sentence starts
Target: ≤72% sentences starting with a subject
subjectCount127
totalSentences161
matches
0"Detective Harlow Quinn caught the"
1"The young officer froze, bent"
2"The constable recoiled."
3"His boot scraped grit across"
4"Harlow released him and crouched"
5"The man lay half in,"
6"Someone had painted the stall"
7"Harlow glanced up."
8"Detective Sergeant Lyle Rook stood"
9"He had the broad, tired"
10"His suit looked slept in,"
11"Harlow looked back at the"
12"Rook clicked his tongue."
13"The corpse wore a long"
14"His skin had a blue-grey"
15"His lips sat open around"
16"Harlow angled her torch and"
17"A tiny hinge."
18"A casing crusted with green"
19"The needle did not point"
ratio0.789
62.11% Subordinate conjunction sentence starts
Target: ≥2% sentences starting with a subordinating conjunction
subConjCount2
totalSentences161
matches
0"By the time she broke"
1"Whoever had taken it had"
ratio0.012
100.00% Technical jargon density
Target: ≤6% sentences with technical-jargon patterns
analyzedSentences67
technicalSentenceCount3
matches
0"Some sold metal trinkets, others wax-sealed bottles, folded fabrics that seemed to drink torchlight, and chipped mirrors covered in cloth."
1"The rails below had rusted into dark red seams, and old adverts peeled from the walls in strips, smiling women offering soap to a city that had forgotten them."
2"The tape looked absurd here, too clean, too official, as if the Metropolitan Police had wandered into a fever dream and decided paperwork would help."
100.00% Useless dialogue additions
Target: ≤5% dialogue tags with trailing filler fragments
totalTags5
uselessAdditionCount0
matches(empty)
100.00% Dialogue tag variety (said vs. fancy)
Target: ≤10% fancy dialogue tags
totalTags3
fancyCount0
fancyTags(empty)
dialogueSentences88
tagDensity0.034
leniency0.068
rawRatio0
effectiveRatio0
94.1211%