Run: 2026-02-24-01KJ8X1KWGXB8R0QGRCKZ662R7

Let's analyze the text and apply the rules precisely. Rules summary: 1. Convert agented passives (with "by [agent]") to active voice. 2. Infer agent when not stated using context. 3. Leave truly agentless passives unchanged if no agent can be determined. 4. Do NOT change dialogue. 5. Do NOT change non-passive constructions (like copulas). 6. Preserve everything else exactly. I'll go through the text sentence by sentence. Original: "The gallery had been closed to the public since Tuesday." This is passive without an agent. Who closed the gallery? Possibly gallery management, staff, or authorities. Context: The gallery is a place, maybe closed by its staff or management. But the sentence doesn't say, and surrounding sentences don't clearly indicate who closed it. It might be agentless. However, later we see "the gallery had been closed" could be inferred that the gallery staff closed it. But is that clear from context? Possibly not. I think it's agentless. Rule 3 says leave truly agentless passives unchanged. So I'll leave it. Next: "Detective Nadia Voss ducked under the yellow tape and stepped inside." Active, no change. Next: "The floors had been polished by the cleaning crew just days ago, and her footsteps echoed off the marble." Agented passive: "had been polished by the cleaning crew" -> convert to active: "The cleaning crew had polished the floors just days ago," Keep the rest. Next: "The front door had been forced open by the intruder." Agented passive: "had been forced open by the intruder" -> "The intruder had forced the front door open." Next: "Deep gouges scarred the frame where a crowbar had been used by whoever broke in." Passive: "had been used by whoever broke in" -> "where whoever broke in had used a crowbar." But careful: "whoever broke in" is the agent. Actually, the phrase "by whoever broke in" is agent. So convert: "where a crowbar had been used by whoever broke in" -> "where whoever broke in had used a crowbar." But the sentence structure: "Deep gouges scarred the frame where a crowbar had been used by whoever broke in." After conversion: "Deep gouges scarred the frame where whoever broke in had used a crowbar." That seems fine. Next: "Nadia crouched and examined the splintered wood." Active. Next: "The lock had been pried loose and tossed aside." Passive without agent. Who pried it loose? Likely the intruder/thief. Context: previous sentences about intruder breaking in. So we can infer "The intruder" or "Whoever broke in" as agent. But rule 2 says infer agent when not stated using context clues. The surrounding sentences: "The front door had been forced open by the intruder." and "Deep gouges scarred the frame where a crowbar had been used by whoever broke in." So agent is intruder/whoever broke in. So we can change to: "The intruder had pried the lock loose and tossed it aside." Or "Whoever broke in had pried the lock loose and tossed it aside." Which one? The previous sentence used "whoever broke in" so maybe consistency. But the first sentence used "the intruder". Both refer to same agent. I'll use "The intruder" as it's simpler. However, note: the sentence has two verbs: "had been pried loose" and "tossed aside". Both passive. So convert both: "The intruder had pried the lock loose and tossed it aside." Next: Dialogue: "Looks like they knew what they were doing," she said... Leave unchanged. Next: "Not even close," Tomás replied. He pointed at the open panel. "Look at the wiring — clean cuts, no tearing. They even knew about the backup." Dialogue, leave. Next: "The alarm system had been disabled by someone with technical knowledge — the wires had been cut cleanly, not ripped out." First part: agented passive: "had been disabled by someone with technical knowledge" -> "Someone with technical knowledge had disabled the alarm system". Second part: "the wires had been cut cleanly, not ripped out." Passive without agent. Who cut the wires? Likely the same someone with technical knowledge. Infer agent: "Someone with technical knowledge had cut the wires cleanly, not ripped them out." But careful: the dash connects the two clauses. Original: "The alarm system had been disabled by someone with technical knowledge — the wires had been cut cleanly, not ripped out." After conversion: "Someone with technical knowledge had disabled the alarm system — they had cut the wires cleanly, not ripped them out." Or maybe "he/she" but "they" is gender-neutral. Better: "Someone with technical knowledge had disabled the alarm system — the wires had been cut cleanly, not ripped out." But then second part still passive. To be consistent, we should also convert second part if agent is same. Since it's a continuation, we can infer agent is the same. So convert both. Let's do: "Someone with technical knowledge had disabled the alarm system — they had cut the wires cleanly, not ripped them out." But rule 6: preserve word choices as much as possible. Changing "the wires had been cut" to "they had cut the wires" changes word order. But that's necessary for active voice. Alternatively, we could keep second part passive if agent is not clearly stated? But rule 2 says infer agent when not stated using context clues. The context is the same sentence: "by someone with technical knowledge" so agent is that someone. So we should convert both. I'll convert second part as well. Next: "A backup battery had also been removed." Passive without agent. Who removed it? Likely the same someone with technical knowledge or the thief. Context: preceding sentence about alarm system disabled. So agent is same. So: "They had also removed a backup battery." Or "Someone with technical knowledge had also removed a backup battery." But the previous conversion used "Someone with technical knowledge" as subject for first clause, then "they" for second. Here we have a new sentence. To maintain flow, maybe: "They had also removed a backup battery." But who is "they"? Might be ambiguous. Better to use "The thief" or "The intruder". But context: "someone with technical knowledge" is likely the intruder. So we can say "The intruder had also removed a backup battery." However, the original sentence is separate. Let's see surrounding: "The alarm system had been disabled by someone with technical knowledge — the wires had been cut cleanly, not ripped out. A backup battery had also been removed." So after converting first sentence, we have: "Someone with technical knowledge had disabled the alarm system — they had cut the wires cleanly, not ripped them out. A backup battery had also been removed." Still passive last sentence. To convert: "They had also removed a backup battery." But "they" refers to "someone with technical knowledge"? Yes. So I'll convert to "They had also removed a backup battery." Next: "The security system had been installed by a private firm only two years earlier." Agented passive: "had been installed by a private firm" -> "A private firm had installed the security system only two years earlier." Next: "Nadia straightened up and walked toward the main hall." Active. Next: "The stolen painting had been displayed on the north wall by the gallery staff for Monday's private viewing." Agented passive: "had been displayed by the gallery staff" -> "The gallery staff had displayed the stolen painting on the north wall for Monday's private viewing." Next: "Only the mounting brackets remained." Active. Next: "The canvas had been sliced from its frame with a blade, and the frame itself had been left propped against the baseboard." Passive without agent. Who sliced the canvas? The thief. Who left the frame? The thief. Context: theft of painting. So infer agent: "The thief had sliced the canvas from its frame with a blade, and had left the frame itself propped against the baseboard." Or "They had sliced..." I'll use "The thief" for consistency. Next: Dialogue: "The Whitmore," she murmured. ... Leave unchanged. Next: "It was worth more than this whole building," Tomás said. ... Dialogue. Next: "A guest list had been compiled by the gallery owner, Mr. Crane, and handed to the police that morning." Agented passive: "had been compiled by the gallery owner" and "handed" is also passive (had been handed). So: "The gallery owner, Mr. Crane, had compiled a guest list and handed it to the police that morning." Next: "Nadia pulled the folded sheet from her jacket pocket and scanned the names." Active. Next: "Twenty-three guests had been invited to Monday's viewing." Passive without agent. Who invited them? Likely Mr. Crane or gallery staff. Context: guest list compiled by Crane. So agent is Crane or his staff. We can infer: "Mr. Crane had invited twenty-three guests to Monday's viewing." Or "The gallery had invited..." But careful: the previous sentence says "A guest list had been compiled by the gallery owner, Mr. Crane," so he is the one who invited? Possibly. But the next sentence: "Every one of them had been vetted by Crane's staff before the event." So vetting is by staff, inviting might also be by Crane or staff. I'll infer agent as "Crane" or "the gallery". To be safe, use "The gallery had invited twenty-three guests to Monday's viewing." But the context is about Crane's involvement. Actually, the sentence before: "A guest list had been compiled by the gallery owner, Mr. Crane," so he compiled the list, likely he invited. So "Mr. Crane had invited twenty-three guests to Monday's viewing." That seems fine. Next: "Every one of them had been vetted by Crane's staff before the event." Agented passive: "had been vetted by Crane's staff" -> "Crane's staff had vetted every one of them before the event." Next: "Two names had been circled in red by Crane himself." Agented passive: "had been circled in red by Crane himself" -> "Crane himself had circled two names in red." Next: Dialogue: "Was anyone unaccounted for after ten o'clock?" Nadia asked. Leave. Next: "Two guests left early," Tomás said, ... Dialogue. Next: "I already checked — both alibis hold up. But the caterer's van wasn't logged out until midnight. Nobody can tell me who was driving it." Dialogue. Next: "Nadia frowned. She turned toward the back corridor." Active. Next: "The theft had been reported by the night guard at dawn — hours after the thief had come and gone." Agented passive: "had been reported by the night guard" -> "The night guard had reported the theft at dawn — hours after the thief had come and gone." Next: "The emergency exit had been propped open with a brick, and muddy boot prints had been tracked across the threshold." Passive without agent. Who propped open? The thief. Who tracked boot prints? The thief. So: "The thief had propped the emergency exit open with a brick, and had tracked muddy boot prints across the threshold." Next: "The brick had been wiped clean of fingerprints." Passive without agent. Who wiped it? The thief. So: "The thief had wiped the brick clean of fingerprints." Next: Dialogue: "Someone came in through the back," she said. ... Leave. Next: "Chen pulled the security footage this morning," Tomás said, ... Dialogue. Next: "The rear camera was spray-painted over at eleven fifteen. Everything else kept rolling, but that one angle — gone. Nothing useful after that." Dialogue? Actually, this is Tomás speaking, so it's dialogue. So leave unchanged. But careful: The sentence "The rear camera was spray-painted over at eleven fifteen." This is passive without agent. But it's inside dialogue, so we do NOT change dialogue. So leave as is. Next: "The remaining cameras had been left untouched — only the one covering the back entrance had been targeted." Passive without agent. Who left them untouched? The thief. Who targeted the one? The thief. So: "The thief had left the remaining cameras untouched — they had targeted only the one covering the back entrance." Or "The thief had left the remaining cameras untouched and had targeted only the one covering the back entrance." But original uses dash. So: "The thief had left the remaining cameras untouched — they had targeted only the one covering the back entrance." But "they" might be ambiguous. Could use "The thief" again: "The thief had left the remaining cameras untouched — he had targeted only the one covering the back entrance." But gender unknown. Better: "The thief had left the remaining cameras untouched — only the one covering the back entrance had been targeted." But then second part still passive. To fully convert, we need to make both active. Since agent is same, we can say: "The thief had left the remaining cameras untouched and had targeted only the one covering the back entrance." But original dash might be for emphasis. We can keep dash: "The thief had left the remaining cameras untouched — they had targeted only the one covering the back entrance." I'll go with that. Next: "Nadia crouched beside the boot prints. They were deep and evenly spaced — size eleven, maybe twelve." Active. Next: "The prints had been photographed by the forensics team, but she wanted to see them for herself." Agented passive: "had been photographed by the forensics team" -> "The forensics team had photographed the prints, but she wanted to see them for herself." Next: "A formal appraisal had been conducted by the insurance company just last month — the painting had been valued at three million." First part: agented passive: "had been conducted by the insurance company" -> "The insurance company had conducted a formal appraisal just last month". Second part: "the painting had been valued at three million." Passive without agent. Who valued it? The insurance company or appraisers. Context: appraisal by insurance company. So agent is insurance company. So: "they had valued the painting at three million." So: "The insurance company had conducted a formal appraisal just last month — they had valued the painting at three million." Next: "Nadia stood and brushed off her knees." Active. Next: "The case would not be solved quickly — she was certain of that." Passive: "be solved" is passive infinitive? Actually "would not be solved" is passive voice. Agent? Possibly "they" or "the police". But context: Nadia is certain. Could infer agent as "she" or "the police". But maybe leave as agentless? It's a prediction. Could change to: "She knew they would not solve the case quickly — she was certain of that." But careful: "The case would not be solved quickly" is a standalone clause. We can infer agent as "the police" or "they". So: "They would not solve the case quickly — she was certain of that." But who is "they"? The police department. It's clear from context. So I'll convert. Next: "But the evidence had been scattered carelessly, almost deliberately, as though the thief wanted to be found." Passive without agent. Who scattered the evidence? The thief. So: "But the thief had scattered the evidence carelessly, almost deliberately, as though he wanted to be found." Or "they". I'll use "the thief". Now, compile all changes. I'll rewrite the passage with these conversions. Let's write it out.