Mason Hall Graffiti campus safety notice

To check this alert, Claude Opus 5.5 (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

• Sourcepresent25/25

  Final assessment

  All 25 reads agree the source is present: the U-M Division of Public Safety and Security and U-M Police Department are named.

  Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

  See all 25 individual reads

  1. present: It names the U-M Division of Public Safety and Security and U-M Police.
  2. present: U-M Division of Public Safety and Security is named.
  3. present: It names the U-M Division of Public Safety and Security.
  4. present: U-M Division of Public Safety and Security.
  5. present: It names 'The University of Michigan Division of Public Safety and Security'.
  6. present: The University of Michigan Division of Public Safety and Security is named.
  7. present: Issued by the U-M Division of Public Safety and Security.
  8. present: The U-M Division of Public Safety and Security is named.
  9. present: The U-M Division of Public Safety and Security is named.
  10. present: It names 'The University of Michigan Division of Public Safety and Security'.
  11. present: The U-M Division of Public Safety and Security is named.
  12. present: The U-M Division of Public Safety and Security is named.
  13. present: The U-M Division of Public Safety and Security is named.
  14. present: The U-M Division of Public Safety and Security is named.
  15. present: U-M Division of Public Safety and Security is named.
  16. present: The U-M Division of Public Safety and Security is named.
  17. present: The U-M Division of Public Safety and Security is named.
  18. present: The U-M Division of Public Safety and Security is named.
  19. present: The U-M Division of Public Safety and Security is named.
  20. present: U-M Division of Public Safety and Security.
  21. present: The U-M Division of Public Safety and Security is named.
  22. present: The U-M Division of Public Safety and Security is named.
  23. present: It names the University of Michigan Division of Public Safety and Security.
  24. present: It names the U-M Division of Public Safety and Security.
  25. present: It says 'The University of Michigan Division of Public Safety and Security has been notified' and cites the U-M Police Department.
• Hazardpresent25/25

  Final assessment

  Unanimous: the alert names a specific threat, a graffiti message reading "School Shooting 4/13".

  What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

  See all 25 individual reads

  1. present: It names a threatening graffiti message, 'School Shooting 4/13'.
  2. present: It names threatening graffiti 'School Shooting 4/13'.
  3. present: It names threatening graffiti reading 'School Shooting 4/13'.
  4. present: Threatening graffiti 'School Shooting 4/13'.
  5. present: It names a threatening graffiti message, 'School Shooting 4/13'.
  6. present: It names a threatening graffiti message, "School Shooting 4/13".
  7. present: Names a threatening graffiti message, 'School Shooting 4/13'.
  8. present: It names a threatening graffiti message, "School Shooting 4/13".
  9. present: It names threatening graffiti reading "School Shooting 4/13".
  10. present: It names threatening graffiti reading 'School Shooting 4/13'.
  11. present: It names a "School Shooting" threat graffiti.
  12. present: It names graffiti threatening a "School Shooting".
  13. present: It names threatening graffiti reading "School Shooting 4/13".
  14. present: It names threatening graffiti reading "School Shooting 4/13".
  15. present: Names a threatening graffiti message 'School Shooting 4/13'.
  16. present: It names a threatening graffiti message, "School Shooting 4/13".
  17. present: It names threatening graffiti reading 'School Shooting 4/13'.
  18. present: It names threatening graffiti reading 'School Shooting 4/13'.
  19. present: Names a 'School Shooting 4/13' threat graffiti.
  20. present: Threatening graffiti reading "School Shooting 4/13".
  21. present: It names graffiti threatening a school shooting.
  22. present: It names threatening graffiti reading 'School Shooting 4/13'.
  23. present: It names threatening graffiti reading 'School Shooting 4/13'.
  24. present: It names a threatening graffiti message, "School Shooting 4/13".
  25. present: It names a threatening graffiti message, 'School Shooting 4/13', written in a bathroom stall.
• Locationpresent25/25

  Final assessment

  All reads agree the location is specific: "a bathroom stall in Mason Hall".

  Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

  See all 25 individual reads

  1. present: It says 'a bathroom stall in Mason Hall'.
  2. present: It names a bathroom stall in Mason Hall.
  3. present: It names a bathroom stall in Mason Hall.
  4. present: Bathroom stall in Mason Hall.
  5. present: It gives 'a bathroom stall in Mason Hall'.
  6. present: It specifies a bathroom stall in "Mason Hall".
  7. present: Gives a bathroom stall in Mason Hall.
  8. present: It specifies a bathroom stall in Mason Hall.
  9. present: It gives a bathroom stall in Mason Hall.
  10. present: It says 'a bathroom stall in Mason Hall'.
  11. present: It names a bathroom stall in Mason Hall.
  12. present: It specifies a bathroom stall in Mason Hall.
  13. present: It names Mason Hall.
  14. present: It names a bathroom stall in Mason Hall.
  15. present: 'a bathroom stall in Mason Hall'.
  16. present: It gives "a bathroom stall in Mason Hall".
  17. present: It gives a bathroom stall in Mason Hall.
  18. present: It gives a bathroom stall in Mason Hall.
  19. present: A bathroom stall in Mason Hall.
  20. present: Bathroom stall in Mason Hall.
  21. present: It names a bathroom stall in Mason Hall.
  22. present: It gives 'a bathroom stall in Mason Hall'.
  23. present: It names 'a bathroom stall in Mason Hall'.
  24. present: It names a bathroom stall in Mason Hall.
  25. present: It says the graffiti was 'on a bathroom stall in Mason Hall'.
• Guidancepresent14/25

  Final assessment

  Present by a narrow 14 to 11 majority: readers are urged to "say something" if something seems wrong and to contact DPSS. Dissenters held this is a reporting request, not a protective action.

  The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

  See all 25 individual reads

  1. present: It urges readers who see something wrong to 'say something' and contact DPSS.
  2. absent: It only asks people to report information.
  3. absent: It only urges reporting, with no protective action.
  4. present: 'If you see something... say something' and contact DPSS.
  5. absent: It only urges readers to 'say something' and report information, not a protective action.
  6. present: It asks readers to "say something" if they see something concerning.
  7. absent: Only asks people to report information; no protective action.
  8. absent: It only asks people to say something and report information.
  9. absent: It only asks for reports, with no protective action.
  10. present: It urges readers who see something wrong to 'say something' and contact DPSS.
  11. present: It urges people to "say something" and contact DPSS.
  12. present: It urges people to say something if they see something concerning.
  13. present: It tells people who see something to say something.
  14. absent: It only asks people to say something and report information.
  15. absent: Only asks people to report; no protective action.
  16. absent: It only urges reporting; no protective action is given.
  17. present: It asks people who see something concerning to say something and report it.
  18. present: It urges people who see something concerning to say something.
  19. absent: Only urges saying something and reporting information.
  20. present: Urges people to say something and report concerns.
  21. absent: It asks people to say something and report, but no protective action.
  22. present: It asks readers to say something if they see concerning behavior.
  23. present: It tells readers that if they see something concerning, 'say something'.
  24. present: It tells people to say something if they see something wrong.
  25. present: It asks that if someone's behavior 'doesn't seem quite right', readers should 'say something' and report it.
• Timepresent13/25

  Final assessment

  Present by a narrow 13 to 12 split: the quoted threat date "4/13" conveys when the threat is aimed. Dissenters noted the date is graffiti content and the message gives no timing of its own.

  When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

  See all 25 individual reads

  1. present: The threat date '4/13' is quoted.
  2. present: It cites the date '4/13'.
  3. absent: The only date is inside the quoted graffiti, and the message gives no timing of its own.
  4. absent: No message time; '4/13' is the graffiti content.
  5. absent: The only date is inside the graffiti; no alert time or recency cue is given.
  6. present: The quoted threat carries a date, "4/13".
  7. present: References the date 4/13.
  8. absent: No date or time of the message or incident is given; 4/13 is part of the graffiti.
  9. absent: The only date appears inside the quoted graffiti, not as alert timing.
  10. absent: The only date is inside the quoted graffiti; no time of the event or message is given.
  11. absent: No date or time of the message or discovery is given.
  12. present: The graffiti gives the date "4/13".
  13. present: The graffiti names a date, 4/13.
  14. absent: No time or recency cue for the message appears; 4/13 is the graffiti's text.
  15. absent: No time or date for the message or incident.
  16. present: The threat's date "4/13" is conveyed.
  17. absent: No issuance time or date is given; 4/13 is part of the graffiti.
  18. present: The quoted threat carries the date 4/13.
  19. present: The graffiti names '4/13' as the threatened date.
  20. absent: No date or time for the message or discovery.
  21. present: The graffiti's date '4/13' gives a when.
  22. present: The quoted threat carries the date '4/13'.
  23. present: The threat cites a date, '4/13'.
  24. present: The graffiti names a date, 4/13, as the threatened time.
  25. absent: No alert date or time is given; '4/13' appears only inside the quoted graffiti, not as timing of the notice.
• Impactabsent1/25

  Final assessment

  Absent by a 24 to 1 majority: the alert names the threat but states no consequence or severity. One read felt "School Shooting" strongly implies harm.

  What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

  See all 25 individual reads

  1. absent: It does not state potential consequences or severity beyond naming the threat.
  2. absent: It conveys no stated consequence or severity.
  3. absent: No consequence or severity is stated.
  4. absent: No severity stated by the sender.
  5. absent: It states no consequence or severity, only an 'abundance of caution' investigation.
  6. absent: It names the threat but states no consequence or severity.
  7. absent: No consequence or severity is stated.
  8. absent: No consequence or severity is stated.
  9. absent: No consequence or severity is stated.
  10. absent: No consequence or severity statement is made.
  11. present: The "School Shooting" threat strongly implies potential harm to people.
  12. absent: No consequence or severity is stated.
  13. absent: No consequence or severity is stated.
  14. absent: No consequence or severity is stated.
  15. absent: No consequence or severity is conveyed.
  16. absent: No consequence or severity is stated.
  17. absent: No consequence or severity is conveyed.
  18. absent: No consequence or severity is stated beyond the threat itself.
  19. absent: No stated consequence or severity.
  20. absent: No consequence or severity stated.
  21. absent: No consequence or severity is stated.
  22. absent: The threat is named but no consequence or severity is stated.
  23. absent: It names the threat but states no explicit consequence or severity.
  24. absent: No stated consequence or severity is given.
  25. absent: It stresses caution and increased police presence but does not state what harm the threat could cause.