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Review plant walkdown video from four specialist angles

For: Site HSE manager or operations manager at a process or manufacturing plant

Pattern: Specialist panelNeeds physical AI: plannedDesigned for 8 to 300 agents
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The pain today

Walkdowns are filmed but reviewed by one person with one checklist. Safety, housekeeping, mechanical integrity and environmental issues in the same footage reach their owners late or never.

The ask

“I attached the walkdown videos by area and our checklists for safety, housekeeping, mechanical integrity and environmental controls. Review each area against each checklist and show me the findings with the time in the video.”

Plain words, as you would say it to a colleague. Edit it to fit your case before you send it.

What you attach or connect

  • Walkdown videos by plant area
  • Four specialist checklists
  • Plant area list
  • Open actions from the last walkdown

The unit of work

One worker task per one plant area's video per checklist.

Why a swarm fits

Four briefs look at the same footage for different things, and plant areas are independent. Each reviewer needs one area's video and one checklist.

Not for

Replacing statutory inspections or permit checks. Video misses smell, sound, heat and anything out of frame.

The decision tree

5 typed decisions, each with an action for every answer

At fixed moments in a run, the engine puts one narrow question to a decision model. The decision model never writes text: it answers yes or no with a probability, picks from listed options, or gives a score, about a small slice of the material. The engine then does exactly what this tree says, which is what makes the run auditable. The thresholds are the template's design values, not measured results.

  1. Before workers, before a task runs

    Small worker or strong modelA choice among options

    Before a task runs

    Can this checklist item be assessed from video at all, or does it need smell, sound, touch, a reading or a document?

    Sees only: One checklist item as written

    Why: Planned: each specialist brief spends effort only on what footage could show.

    • Observable on videothenAccept
    • Partly observablethenEscalate to a strong model
    • Not observable on videothenSkip this unit

  2. Planner, while planning

    Scope checkYes or no, with a probability

    Before work starts on a unit

    Is this written observation about equipment, housekeeping or site conditions only, with no description of any person or their behaviour?

    Sees only: Planned design: one written observation from a walkdown video

    Why: Planned: observations about people are discarded; footage is never used to assess workers.

    • Yes: 0.85 or higherthenAccept
    • Unsure: 0.60 up to 0.85thenSkip this unit
    • No: below 0.60thenSkip this unit

  3. After workers, the judge checks

    Evidence checkYes or no, with a probability

    After a worker answers

    Does the written observation at this timestamp describe the condition this checklist item defines as a finding?

    Sees only: Planned design: one checklist item and one timestamped observation

    Why: Planned: findings are tied to the checklist's definition so their owners can act on them.

    • Yes: 0.85 or higherthenAccept
    • Unsure: 0.50 up to 0.85thenEscalate to a strong model
    • No: below 0.50thenReject and retry

  4. Reconciler, while merging

    Conflict checkYes or no, with a probability

    While reconciling

    Does this finding describe the same condition in the same area as an open action from the last walkdown?

    Sees only: One accepted finding and one open action's description and area

    Why: Planned: a repeat finding means an action marked in progress has not worked.

    • Yes: 0.70 or higherthenMark unresolved
    • Unsure: 0.30 up to 0.70thenMark unresolved
    • No: below 0.30thenAccept

  5. Accountable person, before anything is settled

    Person decidesYes or no, with a probability

    Before anything is reported as settled

    Is this a safety, mechanical integrity or environmental finding, or a repeat of an open action?

    Sees only: One area's accepted findings by checklist

    Why: Planned: the site HSE manager validates findings on the floor before anyone acts on them.

    Accountable: The site HSE manager validates findings on the floor. Footage is never used to monitor or assess individual workers.

    • Yes: 0.20 or higherthenAsk a person
    • Unsure: 0.05 up to 0.20thenAsk a person
    • No: below 0.05thenAccept

The fleet: who does what

Model tiers by role, not brands: you choose the models. Strong reasoning models plan and reconcile, small fast models do the wide work, and the judge is a decision model from a different family, so it does not share the workers' blind spots.

  1. Planner

    A strong reasoning model turns each checklist into observable conditions and assigns areas to briefs.

    Decisions here:2. Scope check

  2. Workers

    A perception model for video and images, planned, one task per area and checklist, reporting conditions with timestamps.

    Designed for 8 to 300 agents, one worker task per one plant area's video per checklist. Each worker receives only its own unit.

    Decisions here:1. Small worker or strong model

  3. Judge, from a different model family

    A decision model from a different family checks that each described observation meets the checklist item as written.

    Decisions here:3. Evidence check

  4. Reconciler

    A strong reasoning model merges findings per area and links them to open actions from the last walkdown.

    Decisions here:4. Conflict check

  5. Accountable person

    The site HSE manager validates findings on the floor. Footage is never used to monitor or assess individual workers.

    Decisions here:5. Person decides

Checked before anything is accepted

  • Every finding cites the video timestamp and the checklist item
  • People in frame are ignored; findings concern equipment and conditions only
  • Checklist items that video cannot show are marked not observable
  • Repeat findings are matched to the earlier open action

What comes back

  • Findings per area and specialist checklist, with timestamps
  • Repeat findings linked to open actions
  • Checklist items the footage could not show
  • Areas with no or poor footage

What to measure

  • Share of findings confirmed on the plant floor
  • Findings from later inspections that the footage already showed
  • Time from walkdown to findings reaching their owners
  • Cost per area reviewed

Names of measures only. No result is claimed for this template.

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