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Why This Matters

Condition quality is the biggest controllable factor for reliable trigger behavior.

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Rule 1: Ask a Yes/No Question

Use binary wording that can be answered from visible evidence. Good:
  • Is it snowing?
  • Are there people visible near the entrance?
  • Is a vehicle stopped in the lane?
Avoid:
  • How many cars are there?
  • Describe what is happening.
  • What might happen next?

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Rule 2: Define Visible Evidence

Specify what should count as a match. Example:
  • Weak: Is there smoke?
  • Better: Is there smoke visible rising from the building roof?

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Rule 3: Keep One Intent per Condition

Avoid combining multiple checks in one sentence.
  • Avoid: Is there an accident or heavy traffic?
  • Better: Is there a visible traffic accident?

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Rule 4: Use Positive Language

Positive phrasing is easier to evaluate than negations.
  • Avoid: Is the lot not empty?
  • Better: Are any vehicles visible in the lot?

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Rule 5: Validate Before Long Jobs

Use check-once first, then promote to live-monitor only after wording is stable.

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Practical Iteration Loop

  1. Draft condition with concrete visual criteria.
  2. Test with Check Once.
  3. Review triggered and explanation.
  4. Refine and retest.
  5. Launch Live Monitor.

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Example Patterns

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Weather

  • Is it actively raining? Look for visible rain streaks or wet pavement.
  • Is there dense fog reducing visibility of distant objects?

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Traffic

  • Is there a stopped vehicle blocking a travel lane?
  • Is there visible bumper-to-bumper congestion?

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Site Monitoring

  • Is anyone inside the fenced zone?
  • Is equipment being moved by a person?

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Next Steps