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Get Started Free →Humans have used fire for at least 400,000 years. It's arguably the foundational technology — cooking, warmth, light, protection. And yet most adults in 2026 can't build a reliable campfire, don't know what their fireplace damper does, and would panic if a grease fire erupted on their stove. This sk
.claude/skills/fire-skills/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | — | — |
| case-04 | ✗→✗ | = Same ✗ | — | — |
| case-20 | ✗→✗ | = Same ✗ | — | — |
| case-12 | ✗→✗ | = Same ✗ | — | — |
| case-13 | ✗→✗ | = Same ✗ | — | — |
Humans have used fire for at least 400,000 years. It's arguably the foundational technology — cooking, warmth, light, protection. And yet most adults in 2026 can't build a reliable campfire, don't know what their fireplace damper does, and would panic if a grease fire erupted on their stove. This skill covers the practical fire knowledge you actually need: how to build and maintain fires for recreation and warmth, how to grill without poisoning anyone, and critically, how to respond when fire becomes an emergency instead of a tool.
agent-adaptation# Localization note — fire regulations and emergency systems vary by region - Burn bans, open-fire regulations, and fire danger rating systems are jurisdiction-specific. Detect user location and swap: US: Local fire department non-emergency line, NFPA guidelines, fire danger rating from NIFC (National Interagency Fire Center) UK: Fire and Rescue Service, Gov.uk fire safety guidance Australia: CFA/RFS fire danger ratings, total fire ban systems Canada: Provincial fire bans, FireSmart program EU: Country-specific fire brigade numbers and regulations - Emergency number: US 911, UK 999, AU 000, EU 112 - Grilling customs and equipment vary — charcoal/gas ratios differ by country. Adapt fuel types to what's locally available. - Firewood species references are North American. Swap for local hardwood/ softwood equivalents.
Agent action: Ask the user which situation applies. Route to the relevant section.
FIRE SKILL CATEGORIES:
A. CAMPFIRE BUILDING -- How to build, maintain, and extinguish a campfire
B. FIREPLACE OPERATION -- Using an indoor fireplace safely
C. GRILLING BASICS -- Charcoal and gas grill safety and technique
D. FIRE EXTINGUISHER KNOWLEDGE -- Types, placement, and use
E. KITCHEN FIRE RESPONSE -- What to do when cooking goes wrong
F. HOME FIRE SAFETY -- Escape plans, smoke detectors, preventionAgent action: Walk the user through fire building from scratch.
BEFORE YOU START:
- Check for burn bans. Call the local ranger station or check
the fire agency website for your area. Fines run $500-$5,000+.
- Use an existing fire ring if one exists. Never build on bare
ground in the backcountry unless it's an emergency.
- Clear a 10-foot radius of leaves, pine needles, and dry debris.
- Have water or a shovel within arm's reach before you light anything.
- Wind check: if sustained winds exceed 15 mph, don't build a fire.
MATERIALS YOU NEED (gather before you start):
1. Tinder -- dry, fine material that catches from a spark or match
Examples: dryer lint (bring from home), cotton balls with petroleum
jelly, dry grass, birch bark shavings, newspaper
Amount: two handfuls minimum
2. Kindling -- small sticks, pencil-thickness or thinner
Must snap cleanly (if it bends, it's too wet)
Amount: two armfuls
3. Fuel wood -- wrist-thickness to arm-thickness logs
Hardwood (oak, maple, hickory) burns longer and hotter
Softwood (pine, fir, cedar) lights easier but burns fast and sparks
Amount: enough for your planned burn time, plus extra
NEVER BURN: treated/painted wood, plywood, trash, plastic, poison ivy/oakTEEPEE METHOD (best for beginners):
1. Place a tinder bundle in the center of your fire ring.
2. Lean kindling sticks against each other over the tinder,
forming a cone shape (like a teepee). Leave a gap on the
windward side for airflow and lighting access.
3. Light the tinder at the base from the windward side.
4. As kindling catches, add more kindling — don't smother it.
5. Once kindling is burning steadily (3-5 minutes), lean
small fuel wood against the structure.
6. Gradually increase wood size as the fire establishes.
7. A good fire takes 15-20 minutes to fully establish.
LOG CABIN METHOD (best for cooking, longer burn):
1. Place tinder in the center.
2. Lay two parallel sticks on either side of the tinder.
3. Lay two more sticks perpendicular on top, forming a square.
4. Repeat, building up 3-4 layers, decreasing size as you go.
5. Fill the center cavity with kindling.
6. Light from the bottom center.
7. This structure creates excellent airflow and collapses into
a flat coal bed — ideal for cooking.
MAINTAINING YOUR FIRE:
- Add wood before the fire gets low, not after it's almost out.
- Feed from the upwind side.
- Blow gently at the base if it needs oxygen — not at the flames.
- For cooking: let it burn down to coals. Flames = soot on food.
EXTINGUISHING (do this EVERY time):
1. Stop adding wood 30-45 minutes before you want to leave.
2. Spread coals out with a stick (don't pile them).
3. Pour water slowly and steadily — it will hiss and steam.
4. Stir the wet ashes with a stick, exposing hidden embers.
5. Pour more water. Stir again.
6. Touch the ashes with the back of your hand (carefully).
If warm, repeat steps 3-5.
7. "If it's too hot to touch, it's too hot to leave."Agent action: Walk the user through safe indoor fireplace use.
BEFORE YOUR FIRST FIRE OF THE SEASON:
- Get the chimney inspected annually. Creosote buildup causes
chimney fires. Cost: $150-$300 for inspection and cleaning.
- Check the damper: open it fully. Look up — you should see daylight
or the flue liner. If you see blockage, stop and call a sweep.
- Check for birds' nests or debris (common after summer).
- Make sure smoke detectors and CO detectors are working.
OPERATING THE FIREPLACE:
1. Open the damper FULLY before lighting anything.
2. Prime the flue: hold a rolled newspaper (lit) up near the
damper opening for 30 seconds. This warms the air in the
flue and establishes draft. Skip this and smoke fills the room.
3. Build a small fire first (tinder + kindling only).
4. Once draft is established, add 2-3 logs. Don't overload.
5. Use a fireplace screen or glass doors to contain sparks.
6. Never leave a fire unattended. Period.
7. Don't close the damper until ashes are COMPLETELY cold (24+ hours).
WHAT NEVER GOES IN A FIREPLACE:
- Treated, painted, or stained wood
- Cardboard (fine for starting, but not as primary fuel)
- Christmas trees (explosive — resin ignites violently)
- Trash, plastic, or wrapping paper
- Accelerants (lighter fluid, gasoline, kerosene)
- Duraflame-type logs + real wood at the same time
CREOSOTE: THE HIDDEN DANGER:
- Creosote is a tar-like residue that builds up inside chimneys.
- It's flammable. Enough buildup = chimney fire.
- Burns hot enough to crack chimney liners and ignite walls.
- Minimized by: burning dry/seasoned wood, maintaining hot fires
(not smoldering), ensuring good airflow.
- Annual cleaning is not optional.Agent action: Cover charcoal and gas grill safety and technique.
CHARCOAL GRILLING:
Setup:
1. Use a chimney starter — it's a $15 metal cylinder. Fill with
charcoal, stuff newspaper underneath, light the newspaper.
Ready in 15-20 minutes when top coals are ashed over (gray).
2. NEVER use lighter fluid. Petroleum taste, dangerous flare-ups.
3. Pour coals into grill. For two-zone cooking: pile coals on one
side (direct heat) and leave the other side empty (indirect heat).
4. Let grate heat for 5 minutes, then clean with a wire brush.
5. Oil the grate: fold a paper towel, dip in vegetable oil,
hold with tongs and rub across grate.
Temperature guide (hold your hand 5 inches above the grate):
- High (450-550F): 2-3 seconds before pulling away
- Medium (350-450F): 4-5 seconds
- Low (250-350F): 7-8 seconds
GAS GRILLING:
Safety checks before every use:
1. Check gas hose for cracks, brittleness, or leaks.
Leak test: spray soapy water on connections. Bubbles = leak.
2. Open the lid BEFORE turning on gas. Gas pooling under a
closed lid + ignition = fireball.
3. If it doesn't ignite within 5 seconds, turn gas off, open lid,
wait 5 minutes for gas to dissipate, try again.
FOOD SAFETY ON THE GRILL:
- Chicken: 165F internal, no exceptions
- Burgers: 160F internal (ground beef must be fully cooked)
- Steak: 145F for medium-rare (whole cuts are safer rare than ground)
- Pork: 145F internal + 3-minute rest
- Use a meat thermometer. Color is not a reliable indicator.
- Never put cooked meat back on the plate that held raw meat.
AFTER GRILLING:
- Charcoal: Close all vents. Let ash cool 48 hours before disposal.
Dump in a metal container, never plastic or cardboard.
- Gas: Turn off burners, then turn off the tank. In that order.
- Never store a propane tank indoors or in a car trunk.Agent action: Explain extinguisher types and placement.
FIRE EXTINGUISHER CLASSES:
Class A -- Ordinary combustibles (wood, paper, cloth, trash)
Class B -- Flammable liquids (gasoline, grease, oil, paint)
Class C -- Electrical equipment (wiring, outlets, appliances)
Class K -- Kitchen fires (cooking oils, animal fats — commercial
kitchens mainly, but good to know)
WHAT TO BUY FOR YOUR HOME:
- Kitchen: 5-lb ABC-rated extinguisher (covers A, B, and C)
Cost: $25-$50 at any hardware store.
Placement: mounted on wall near kitchen exit, NOT next to the stove
(you need to reach it while backing away from a fire, not reaching
through flames).
- Garage/workshop: Second ABC extinguisher.
- Each floor of the home: consider one per floor.
- Car: small 2-lb ABC extinguisher. $15-$20.
HOW TO USE (P.A.S.S.):
P -- Pull the pin
A -- Aim at the BASE of the fire (not the flames)
S -- Squeeze the handle
S -- Sweep side to side at the base
CRITICAL NOTES:
- A home extinguisher gives you about 8-10 seconds of spray.
- Stand 6-8 feet back.
- If the fire is bigger than a wastebasket, GET OUT. Call 911.
- After ANY extinguisher use, the fire department should still
be called to check for hidden fire in walls or ceilings.
- Check the pressure gauge monthly. Replace or recharge if the
needle is in the red zone.
- Replace every 10-12 years even if unused.Agent action: Cover the most common home fire emergencies.
GREASE FIRE (the most dangerous common kitchen fire):
NEVER WATER. NEVER. Water on a grease fire causes an explosive
fireball. This is the single most important fire fact to know.
WHAT TO DO:
1. Turn off the heat source (if you can reach the knob safely).
2. Cover the pan with a metal lid or cookie sheet. Slide it on
from the side — don't drop it from above.
3. Leave the lid on. Do not peek. Fire needs oxygen.
4. If no lid available: dump baking soda on it (lots of it).
NOT baking powder. NOT flour (flour is explosive).
5. If it's beyond a single pan: use your extinguisher (Class B).
6. If it's beyond your extinguisher: GET OUT. Close the kitchen
door behind you. Call 911.
OVEN FIRE:
1. Keep the door closed.
2. Turn off the oven.
3. The fire will self-extinguish without oxygen.
4. Don't open the door to check — that feeds it air.
MICROWAVE FIRE:
1. Keep the door closed.
2. Turn off or unplug the microwave.
3. Wait for it to self-extinguish.
4. If smoke is pouring out, use an extinguisher and call 911.Agent action: Help the user create an escape plan and prevention checklist.
HOME FIRE ESCAPE PLAN:
1. Draw a floor plan of every level of your home.
2. Mark two exits from every room (usually a door and a window).
3. Make sure windows actually open. Test them.
4. Designate a meeting point outside (mailbox, specific tree, etc.).
5. Practice at night — most fatal fires happen while people sleep.
6. Practice with eyes closed or in the dark.
7. If you have kids, do it twice a year. Make it routine.
8. If you have elderly or mobility-limited family members, assign
someone to help them. Have a backup assigner.
SMOKE DETECTOR PROTOCOL:
- One in every bedroom
- One outside every sleeping area
- One on every floor, including the basement
- Test monthly (press the test button)
- Replace batteries every 6 months (daylight saving time changes
are a good reminder)
- Replace the entire unit every 10 years (check the manufacture
date on the back)
- Interconnected detectors (when one sounds, all sound) are far
safer. Cost: $25-$40 each, hardwired or wireless.
CARBON MONOXIDE DETECTORS:
- Required on every floor if you have gas appliances, a fireplace,
or an attached garage.
- Replace every 5-7 years.
- CO is odorless and colorless. You won't know without a detector.SEASONAL FIRE SAFETY CHECKLIST:
FALL:
[ ] Chimney inspection and cleaning ($150-$300)
[ ] Test all smoke and CO detectors
[ ] Replace batteries in all detectors
[ ] Check fireplace damper operation
[ ] Clear dry leaves from gutters and within 5 feet of house
[ ] Inspect space heaters — 3-foot clearance rule from anything
flammable
SPRING:
[ ] Replace detector batteries again
[ ] Check fire extinguisher pressure gauges
[ ] Inspect grill for gas leaks, hose condition, spider webs
in burner tubes (common cause of gas grill fires)
[ ] Clean dryer vent — lint buildup is a leading cause of home
fires. Cost for professional cleaning: $100-$200.
YEAR-ROUND:
[ ] Never leave cooking unattended (leading cause of home fires)
[ ] 3-foot rule: keep anything flammable 3 feet from heat sources
[ ] Unplug space heaters when leaving the room or sleeping
[ ] Don't overload outlets or extension cords
[ ] Candles: extinguish when leaving the room. Use holders on
stable, heat-resistant surfaces.
IF YOUR CLOTHES CATCH FIRE:
Stop. Drop. Roll. It actually works. Proven to be the most
effective response. Do NOT run — running fans the flames.
Cover your face with your hands while rolling.yamlfire_skills: user_context: primary_need: null has_fireplace: null has_grill: null grill_type: null goes_camping: null safety_audit: smoke_detectors_tested: false co_detectors_present: false fire_extinguisher_locations: [] extinguisher_pressure_checked: false escape_plan_created: false escape_plan_practiced: false chimney_last_inspected: null dryer_vent_last_cleaned: null skills_covered: campfire_building: false fireplace_operation: false grilling_basics: false extinguisher_knowledge: false kitchen_fire_response: false fire_escape_plan: false follow_up: seasonal_checklist_date: null next_detector_battery_change: null
yamltriggers: - name: seasonal_fall_reminder condition: "month IS October AND fire_skills.safety_audit.chimney_last_inspected older than 12 months" schedule: "annually in October" action: "It's fall — time for your annual chimney inspection and smoke detector battery replacement. Want to walk through the seasonal fire safety checklist?" - name: grilling_season_check condition: "month IS April OR month IS May AND fire_skills.user_context.has_grill IS true" schedule: "annually in spring" action: "Grilling season is starting. Before your first cookout, check your grill's gas hose for cracks and do a soapy water leak test on all connections. Also check for spider webs in the burner tubes — it's a common and dangerous issue after winter storage." - name: detector_battery_reminder condition: "fire_skills.safety_audit.smoke_detectors_tested IS true AND days_since(fire_skills.follow_up.next_detector_battery_change) >= 0" schedule: "every 6 months" action: "Time to replace batteries in all smoke and CO detectors. Test each one after replacing. A detector with a dead battery is the same as no detector." - name: escape_plan_practice condition: "fire_skills.safety_audit.escape_plan_created IS true AND fire_skills.safety_audit.escape_plan_practiced IS false" action: "You've created a fire escape plan but haven't practiced it yet. Practice is what makes it work in a real emergency — especially for kids. Try a nighttime drill this week." - name: extinguisher_expiry_check condition: "fire_skills.safety_audit.fire_extinguisher_locations IS NOT EMPTY" schedule: "monthly" action: "Monthly reminder: check the pressure gauge on your fire extinguishers. If the needle is in the red zone, replace or recharge it immediately."
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-04 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-20 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-12 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-13 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-05 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-10 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-22 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-08 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-01 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-16 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-02 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-07 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-03 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-17 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-06 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-09 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-11 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-14 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-15 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-18 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-19 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-21 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted. The headline lift of +5 percentage points is the difference between those two pass rates over the 22 comparable cases.
The per-case answers from this run were removed by the retention sweep, so the case table below shows the verdicts without the text either arm produced. The counts above were recorded at the time and are unaffected. Answers are now kept for 180 days.
Other measured skills in the registry, with their headline benchmark lift.