Gas leak prompts secure-perimeter order, then evacuation; reopened the same day

To check this alert, Claude Opus 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.

• Sourceabsent0/25

  Final assessment

  Absent by 0 of 25. No sending authority is named anywhere; the message opens with the operational phrase REAL EVENT and the site label Ft. Lupton Campus, neither of which identifies an institution or alert system.

  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. absent: No sender tag or agency appears, only the phrase "REAL EVENT" and a campus name, so the issuer is unidentified.
  2. absent: No sender tag, university name or agency appears; "REAL EVENT" is a drill disclaimer, not an identified issuer.
  3. absent: No sender, agency or branded tag appears; the text opens with "REAL EVENT" and never says who issued it.
  4. absent: No sender tag, university name or agency appears anywhere in this secure perimeter message.
  5. absent: No sender tag, university name or agency appears; "REAL EVENT" is a drill disclaimer, not an identified issuer.
  6. absent: No sender tag, university name or agency appears; "Ft. Lupton Campus" labels the place affected, not who issued the message.
  7. absent: No sender, agency or branded signature appears; the text opens only with "REAL EVENT" and a campus name.
  8. absent: No sender or agency is named anywhere; "Ft. Lupton Campus" labels the place, not the issuing authority.
  9. absent: No sender is named anywhere: "REAL EVENT" is a drill disclaimer, not an issuing authority or branded signature.
  10. absent: No sender tag, university name or agency appears; "REAL EVENT" is a drill disclaimer, not an identified issuing authority.
  11. absent: No university, agency or branded alert tag appears; "REAL EVENT" is a test disclaimer, not a sender identity.
  12. absent: No sender tag, university name or agency appears anywhere in this secure perimeter message.
  13. absent: No sender name, agency or branded signature appears: "REAL EVENT" is a drill disclaimer, not an identifier.
  14. absent: No sender or agency signs the message; "Ft. Lupton Campus" names a place, not the issuing authority.
  15. absent: No sender tag or agency appears: "REAL EVENT" is a drill disclaimer, not an identified issuing authority.
  16. absent: No sender or agency is named anywhere; "REAL EVENT" is a drill disclaimer, not an identification of who is writing.
  17. absent: No sender tag, university name or agency appears; "REAL EVENT" is a test disclaimer, not an identified source.
  18. absent: No sender tag, university name or agency appears; "REAL EVENT" is a drill disclaimer, not an identified source.
  19. absent: No sender tag, university name or agency appears; "REAL EVENT" is a test disclaimer, not an identified issuer.
  20. absent: No sender brand or agency appears, only the location label "Ft. Lupton Campus" with no issuing authority.
  21. absent: No sender tag, university name or agency appears; "REAL EVENT" is a drill disclaimer, not an identified issuer.
  22. absent: No branded signature or agency appears, only "REAL EVENT" and a campus name, so the sender is unidentified.
  23. absent: No sender, agency or branded signature appears; "REAL EVENT" is a drill disclaimer, not an identified issuing authority.
  24. absent: No sender brand or agency appears; "Ft. Lupton Campus" names a place, not the issuing authority.
  25. absent: No sender, branded tag or agency appears; "REAL EVENT" is a test disclaimer, not an identification of who is speaking.
• Hazardabsent1/25

  Final assessment

  Absent by 1 of 25. The threat is described only as an external situation, with no fire, gas, weapon or weather named, so recipients learn nothing about what the hazard actually is.

  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. absent: The cause is given only as "an external situation", which names no specific threat.
  2. absent: It cites only "an external situation", a generic phrase that never names what the threat actually is.
  3. absent: Only "an external situation" is given, a generic phrase that never names the actual threat.
  4. absent: Only "an external situation" is given, which is a generic phrase that names no actual threat.
  5. absent: The cause is called only "an external situation", which names no specific threat.
  6. absent: The cause is only an "external situation", a generic phrase that names no specific threat.
  7. absent: The cause is called only an "external situation", which names no specific threat.
  8. absent: It says only "an external situation", a generic phrase that never names the actual threat.
  9. absent: The cause is only "an external situation", a generic phrase that names no actual threat.
  10. absent: The cause is only an "external situation", a generic phrase that never names an actual threat.
  11. present: "SECURE PERIMETER in effect" names the lockdown-as-situation being imposed, though the underlying threat stays vague.
  12. absent: It cites only "an external situation", a generic phrase that never names the actual threat.
  13. absent: The cause is only "an external situation", a generic phrase that never names an actual threat.
  14. absent: It says only "an external situation", a generic phrase that never names the actual threat.
  15. absent: The cause is only "an external situation", a generic phrase that never names the actual threat.
  16. absent: The threat is only called "an external situation", which is generic and names no specific danger.
  17. absent: The cause is only "an external situation", a generic phrase that never names the actual threat.
  18. absent: Only "an external situation" is given, a generic phrase that names no specific threat.
  19. absent: Only "an external situation" is given, a generic phrase that names no actual threat.
  20. absent: The cause is called "an external situation", which names no specific threat.
  21. absent: Only "an external situation" is given, which is generic and names no actual threat.
  22. absent: The cause is called "an external situation", which names no specific threat at all.
  23. absent: Only "an external situation" is given, which is generic and names no actual threat.
  24. absent: The cause is only "an external situation", a generic phrase that never names the actual threat.
  25. absent: The cause is only "an external situation", a generic phrase that never names the actual threat.
• Locationpresent25/25

  Final assessment

  Present by 25 of 25. Ft. Lupton Campus names the specific campus under the secure perimeter, which is enough to place the event for recipients.

  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 places the action at the "Ft. Lupton Campus", a named campus location.
  2. present: "Ft. Lupton Campus" pins the affected site, and "the building" narrows it further.
  3. present: "Ft. Lupton Campus" pins the message to a specific campus.
  4. present: "Ft. Lupton Campus" pins the affected site precisely.
  5. present: "Ft. Lupton Campus" pins the affected site.
  6. present: It names the "Ft. Lupton Campus" and "the building" as the area under the secure perimeter.
  7. present: It names the "Ft. Lupton Campus" and refers to "the building" as the place affected.
  8. present: "Ft. Lupton Campus" and "the building" tell recipients which site is affected.
  9. present: It specifies the "Ft. Lupton Campus" as the place under a secure perimeter.
  10. present: "Ft. Lupton Campus" pinpoints which campus the secure perimeter covers.
  11. present: "Ft. Lupton Campus" and "the building" pin the message to a specific campus site.
  12. present: "Ft. Lupton Campus" and "the building" pin the affected place.
  13. present: "Ft. Lupton Campus" pins the message to a specific named campus.
  14. present: "Ft. Lupton Campus" pinpoints which campus the secure perimeter covers.
  15. present: "Ft. Lupton Campus" pins the affected site, and "the building" narrows it further.
  16. present: It places the secure perimeter at the "Ft. Lupton Campus", a named campus location.
  17. present: "Ft. Lupton Campus" and "the building" locate the secure perimeter precisely.
  18. present: It names the "Ft. Lupton Campus" and "the building" as the affected place.
  19. present: "Ft. Lupton Campus" and "the building" pin the message to a specific campus.
  20. present: "Ft. Lupton Campus" and "the building" tell recipients where the perimeter applies.
  21. present: "Ft. Lupton Campus" pins the affected site.
  22. present: It names the "Ft. Lupton Campus" and "the building" as the affected place.
  23. present: "Ft. Lupton Campus" and "the building" locate the secure perimeter.
  24. present: "Ft. Lupton Campus" identifies the affected campus precisely.
  25. present: It specifies the "Ft. Lupton Campus" and "the building" as the affected place.
• Guidancepresent25/25

  Final assessment

  Present by 25 of 25. Three explicit directives, Stay inside, operations continue indoors, and DO NOT leave the building, tell recipients exactly what to do.

  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: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  2. present: Recipients are told to "Stay inside" and "DO NOT leave the building", clear protective instructions.
  3. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  4. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective instructions.
  5. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  6. present: Recipients are told to "Stay inside" and "DO NOT leave the building", clear protective instructions.
  7. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective instructions.
  8. present: It orders "Stay inside" and "DO NOT leave the building", clear protective actions.
  9. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective instructions.
  10. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  11. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective instructions.
  12. present: "Stay inside" and "DO NOT leave the building" are direct protective instructions.
  13. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  14. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  15. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective instructions.
  16. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective instructions.
  17. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  18. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  19. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective instructions.
  20. present: Direct orders appear: "Stay inside" and "DO NOT leave the building".
  21. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  22. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective instructions.
  23. present: Recipients are told "Stay inside" and "DO NOT leave the building".
  24. present: Recipients are told "Stay inside" and "DO NOT leave the building", clear protective actions.
  25. present: Recipients are told to "Stay inside" and "DO NOT leave the building", clear protective instructions.
• Timeabsent7/25

  Final assessment

  Absent by 7 of 25, a real split. The alert says SECURE PERIMETER in effect but gives no clock time, date or duration; the minority read the present tense as an implicit now.

  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. absent: There is no clock time, date, or recency word such as now or immediately.
  2. absent: "in effect" gives no clock time, date or recency word such as now or until further notice.
  3. absent: No clock time, date or recency word appears; "in effect" alone gives no timing.
  4. present: "SECURE PERIMETER in effect" plus "operations continue indoors" signals a currently running condition.
  5. present: "SECURE PERIMETER in effect" conveys a condition operating right now.
  6. absent: Nothing conveys clock time, date or recency beyond the unanchored phrase "in effect".
  7. present: "SECURE PERIMETER in effect" signals a condition operating right now.
  8. absent: No clock time, date, or recency word appears; "in effect" alone is not a time cue.
  9. absent: No clock time, date, or recency word such as now or immediately appears in the message.
  10. absent: Nothing gives a clock time, date or recency word such as now or immediately.
  11. absent: No clock time, date or recency word such as "now" or "immediately" is given.
  12. present: "SECURE PERIMETER in effect" signals a condition operating right now.
  13. absent: Nothing dates the event: no clock time, no date, no word like now or immediately.
  14. absent: Nothing dates the event or signals recency beyond the vague phrase "in effect".
  15. absent: There is no clock time, date, or recency word such as now or until further notice.
  16. absent: There is no clock time, date, or recency word such as now or immediately in the text.
  17. absent: Nothing dates the event or signals recency beyond "in effect", which gives no clock or day.
  18. present: "SECURE PERIMETER in effect" signals a condition applying right now.
  19. absent: Nothing conveys clock time, date or recency; "in effect" alone gives no timing.
  20. absent: Nothing gives a clock time, date, or recency word beyond the undated phrase "in effect".
  21. present: "SECURE PERIMETER in effect" signals a condition currently running, a recency cue.
  22. absent: Nothing marks timing: no clock time, date, or word like now or immediately.
  23. absent: No clock time, date or recency word such as now or immediately is present.
  24. absent: No clock time, date, or recency word appears; "in effect" alone does not date the message.
  25. present: "SECURE PERIMETER in effect" signals a currently ongoing condition, which is a recency cue.
• Impactabsent0/25

  Final assessment

  Absent by 0 of 25. Nothing states what could happen to people; the message sets a protective posture without naming any consequence or severity of the unspecified external situation.

  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: Nothing states what could happen or how serious the external situation is.
  2. absent: Nothing describes harm or severity; the threat's potential consequences are never mentioned.
  3. absent: Nothing states what the external situation could do or how serious the danger is.
  4. absent: Nothing states what the outside situation could do to people or property.
  5. absent: Nothing states what the outside situation could do or how severe it is.
  6. absent: No harm or severity is described, only that a perimeter is in place.
  7. absent: Nothing states what could happen or how dangerous the outside situation is.
  8. absent: Nothing states what the external situation could do or how dangerous it might be.
  9. absent: Nothing states what the external situation could do or how dangerous it might be.
  10. absent: No statement of what could happen to people, only the order to remain indoors.
  11. absent: Nothing states what the "external situation" could do or how dangerous it is.
  12. absent: Nothing states what the external situation could do or how dangerous it is.
  13. absent: No consequence or severity is described, only the perimeter status and the instruction to remain indoors.
  14. absent: No consequence or severity is described, only that a perimeter is secured.
  15. absent: Nothing states what could happen to people; no harm or severity is described at all.
  16. absent: Nothing describes what the outside situation could do to people or property.
  17. absent: No consequence or severity is described, only that a perimeter is secured.
  18. absent: Nothing states what the situation could do or how severe the consequences might be.
  19. absent: No consequence or severity is stated, only that a perimeter is secured.
  20. absent: No consequence or severity is stated, only the protective posture itself.
  21. absent: Nothing states what the situation could do or how severe the danger is.
  22. absent: No consequence or severity is stated, only that a perimeter is secured.
  23. absent: Nothing states what the situation could do or how dangerous it is.
  24. absent: Nothing states what the external situation could do or how dangerous it is.
  25. absent: Nothing states what the external situation could do or how dangerous it might be.