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name: site-safety-briefing description: "Produce a toolbox talk or pre-task safety briefing from the day's planned construction work. Use when asked to write a toolbox talk, prepare a pre-task plan or JHA/JSA briefing, brief a crew on today's hazards, or plan safety for a specific task like a crane pick, excavation, or hot work. Produces a crew-ready briefing with task-specific hazards, controls ordered by the hierarchy of controls, required permits, and explicit stop-work triggers."

Site Safety Briefing Skill

A toolbox talk that could apply to any site on any day protects nobody. This skill builds the briefing from today's actual work: what tasks are running, what they conflict with, what the weather and site conditions add, and — critically — what conditions mean the crew stops and calls the supervisor. Controls are ordered by the hierarchy of controls, because "wear your PPE" is the last line of defence, not a plan.

What This Skill Produces

• A crew-ready briefing (readable aloud in 5–10 minutes) for the day's specific tasks
• A task-hazard-control table with controls ordered by the hierarchy of controls
• Permit and inspection checklist (hot work, excavation, confined space, lift plans, LOTO, etc.)
• Simultaneous-operations (SIMOPS) conflicts between crews working near each other
• Explicit, observable stop-work triggers and the emergency basics (muster point, nearest hospital, who calls)

Required Inputs

Ask for what's missing; from a bare task name, build the briefing from typical hazards and label site-specific items [confirm on site]:

• Today's tasks — what work, where on site, which crews/trades
• Site conditions — weather forecast, ground conditions, live utilities, public interface, stage of construction
• Adjacent operations — what else is happening nearby (other trades, deliveries, crane operations)
• Equipment in use — lifts, cranes, excavators, powder-actuated tools, temporary power
• Known site rules — client/GC permit systems, exclusion zones, prior incidents or near-misses worth referencing

Hazard & Controls Framework

Identify hazards per task, not generically. Sweep these classes for each task: gravity (falls, dropped objects), mechanical/energy (struck-by, caught-between, stored energy, electrical), excavation/ground (collapse, utilities, water), atmosphere (confined space, dust, fumes, hot work), environment (heat/cold, wind — especially for crane picks and panel handling), and human factors (new crew members, fatigue, language barriers).

Order every control by the hierarchy — and say which level it is:

Level	Control	Example
1	Eliminate	Prefabricate at ground level instead of working at height
2	Substitute	Mechanical lifting instead of manual handling; low-VOC product
3	Engineering	Guardrails, trench box, ventilation, physical barricades
4	Administrative	Permits, exclusion zones, spotters, rotation, signage
5	PPE	Harness, respirator, cut gloves — the last layer, never the plan

If a briefing's controls are all level 4–5, flag it: the task plan itself may need rework.

Stop-work triggers must be observable. Not "if unsafe" — write conditions a crew member can see: wind above the crane chart limit; water entering the excavation; utility strike or unexpected line; barricade down in the exclusion zone; anyone in the fall zone during the pick. State plainly that anyone can stop work without repercussions.

Output Format

Pre-Task Safety Briefing — [Date] — [Site/Area]

1. Today's work — tasks, crews, locations, in one glance. 2. Task hazard & control table — | Task | Hazard | Control (hierarchy level) | Who verifies | 3. Permits & inspections required today — permit type, task, who holds it, valid when. 4. SIMOPS / crew interfaces — who's working near whom, and the separation rule. 5. Stop-work triggers — bulleted, observable, with "stop, make safe, call [supervisor]". 6. Emergency info — muster point, first aider, nearest hospital, who calls emergency services. 7. Sign-on sheet — name/signature lines; space for crew-raised concerns (record them — that's the point of the talk).

Quality Checks

• Every hazard ties to a specific task happening today — no generic filler hazards
• Every control states its hierarchy level, and PPE is never the only control for a serious hazard
• Permits listed match the tasks (hot work, excavation >1.2m/4ft, confined space, critical lifts, LOTO)
• Stop-work triggers are observable conditions, not attitudes
• SIMOPS conflicts between today's crews are addressed or explicitly ruled out
• Readable aloud in under 10 minutes — a briefing nobody listens to protects nobody

Anti-Patterns

• Do not produce a generic talk that ignores today's task list — reusability is the enemy of relevance
• Do not jump straight to PPE — walk the hierarchy from elimination down and show the levels skipped
• Do not write "be careful" or "stay alert" as a control — name the physical or procedural measure
• Do not omit adjacent-crew hazards — most struck-by events involve someone else's operation
• Do not fabricate site-specific details (utility locations, wind limits) — mark them [confirm on site] for the supervisor to fill in

Example Trigger Phrases

• "Write a toolbox talk."
• "Prepare a pre-task plan or JHA/JSA briefing."
• "Brief a crew on today's hazards."
• "Plan safety for a specific task like a crane pick."