Check Fire Danger
check_fire_dangerCheck current fire danger ratings for Maine towns to determine if burning is permitted, using real-time data from official fire weather systems.
Instructions
Checks the current fire danger rating for a specific town in Maine to see if burning is allowed.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| town | Yes | The name of the town to check fire danger for |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| note | Yes | ||
| zoneId | Yes | ||
| humidity | Yes | ||
| windSpeed | Yes | ||
| stationName | Yes | ||
| temperature | Yes | ||
| burningIndex | Yes | ||
| fireMoisture1hr | Yes | ||
| fireMoisture10hr | Yes | ||
| fireMoisture100hr | Yes |
Implementation Reference
- src/tools/fireDanger.ts:29-144 (handler)Handler function that launches a headless Puppeteer browser, scrapes the Maine Fire Weather website to find the station for the given town, retrieves fire danger and weather data, and returns a structured response with text summary and data object.
async (args) => { const { town } = args; let browser; try { browser = await puppeteer.launch({ headless: true, args: ["--no-sandbox", "--disable-setuid-sandbox"], }); const page = await browser.newPage(); await page.goto(FIRE_DANGER_URL, { waitUntil: "networkidle0" }); // Extract the STA object from the page script const staData = await page.evaluate(() => { // @ts-ignore return typeof STA !== 'undefined' ? STA : null; }); if (!staData || !staData.stations) { return { content: [ { type: "text", text: "Could not retrieve station data from Maine Fire Weather website.", }, ], isError: true, }; } // Find station by name (case-insensitive partial match) const stations = Object.values(staData.stations) as any[]; const station = stations.find((s: any) => s.station_name.toLowerCase().includes(town.toLowerCase()) ); if (!station) { const availableStations = stations.map((s: any) => s.station_name).join(", "); return { content: [ { type: "text", text: `Could not find a weather station matching "${town}". Available stations: ${availableStations}. Please try one of these locations.`, }, ], }; } // Navigate to specific station page const stationUrl = `${FIRE_DANGER_URL}?station=${station.source_id}`; await page.goto(stationUrl, { waitUntil: "networkidle0" }); const currentStationData = await page.evaluate(() => { // @ts-ignore return typeof STA !== 'undefined' ? STA.currentStation : null; }); if (!currentStationData || !currentStationData.firedanger) { return { content: [ { type: "text", text: `Could not retrieve fire danger data for ${station.station_name}.`, }, ], isError: true, }; } const fd = currentStationData.firedanger; const weather = currentStationData.weather; const output = { stationName: station.station_name, zoneId: station.zoneid.toString(), burningIndex: fd.bi.toString(), fireMoisture1hr: fd.fm1.toString(), fireMoisture10hr: fd.fm10.toString(), fireMoisture100hr: fd.fm100.toString(), temperature: `${weather.dry_temp}°F`, humidity: `${weather.rh}%`, windSpeed: `${weather.wind_sp} mph`, note: `Please verify the official Class Day (Low/Moderate/High) on the main map at ${FIRE_DANGER_URL} before burning.`, }; return { content: [ { type: "text", text: `Fire Weather Data for ${output.stationName} (Zone ${output.zoneId}):\n` + `Burning Index: ${output.burningIndex}\n` + `Fire Moisture (1-hr): ${output.fireMoisture1hr}\n` + `Fire Moisture (10-hr): ${output.fireMoisture10hr}\n` + `Fire Moisture (100-hr): ${output.fireMoisture100hr}\n` + `Weather: ${output.temperature}, RH ${output.humidity}, Wind ${output.windSpeed}\n` + `\nNote: ${output.note}`, }, ], structuredContent: output, }; } catch (error: any) { return { content: [ { type: "text", text: `Error checking fire danger: ${error.message}`, }, ], isError: true, }; } finally { if (browser) { await browser.close(); } } - src/tools/fireDanger.ts:13-27 (schema)Zod schemas defining the input (town name) and output (station details, fire indices, weather data, note) for the tool.
inputSchema: { town: z.string().describe("The name of the town to check fire danger for"), }, outputSchema: { stationName: z.string(), zoneId: z.string(), burningIndex: z.string(), fireMoisture1hr: z.string(), fireMoisture10hr: z.string(), fireMoisture100hr: z.string(), temperature: z.string(), humidity: z.string(), windSpeed: z.string(), note: z.string(), }, - src/tools/fireDanger.ts:7-146 (registration)Function to register the 'check_fire_danger' tool on the MCP server, including schema and handler.
export function registerFireDangerTool(server: McpServer) { server.registerTool( "check_fire_danger", { title: "Check Fire Danger", description: "Checks the current fire danger rating for a specific town in Maine to see if burning is allowed.", inputSchema: { town: z.string().describe("The name of the town to check fire danger for"), }, outputSchema: { stationName: z.string(), zoneId: z.string(), burningIndex: z.string(), fireMoisture1hr: z.string(), fireMoisture10hr: z.string(), fireMoisture100hr: z.string(), temperature: z.string(), humidity: z.string(), windSpeed: z.string(), note: z.string(), }, }, async (args) => { const { town } = args; let browser; try { browser = await puppeteer.launch({ headless: true, args: ["--no-sandbox", "--disable-setuid-sandbox"], }); const page = await browser.newPage(); await page.goto(FIRE_DANGER_URL, { waitUntil: "networkidle0" }); // Extract the STA object from the page script const staData = await page.evaluate(() => { // @ts-ignore return typeof STA !== 'undefined' ? STA : null; }); if (!staData || !staData.stations) { return { content: [ { type: "text", text: "Could not retrieve station data from Maine Fire Weather website.", }, ], isError: true, }; } // Find station by name (case-insensitive partial match) const stations = Object.values(staData.stations) as any[]; const station = stations.find((s: any) => s.station_name.toLowerCase().includes(town.toLowerCase()) ); if (!station) { const availableStations = stations.map((s: any) => s.station_name).join(", "); return { content: [ { type: "text", text: `Could not find a weather station matching "${town}". Available stations: ${availableStations}. Please try one of these locations.`, }, ], }; } // Navigate to specific station page const stationUrl = `${FIRE_DANGER_URL}?station=${station.source_id}`; await page.goto(stationUrl, { waitUntil: "networkidle0" }); const currentStationData = await page.evaluate(() => { // @ts-ignore return typeof STA !== 'undefined' ? STA.currentStation : null; }); if (!currentStationData || !currentStationData.firedanger) { return { content: [ { type: "text", text: `Could not retrieve fire danger data for ${station.station_name}.`, }, ], isError: true, }; } const fd = currentStationData.firedanger; const weather = currentStationData.weather; const output = { stationName: station.station_name, zoneId: station.zoneid.toString(), burningIndex: fd.bi.toString(), fireMoisture1hr: fd.fm1.toString(), fireMoisture10hr: fd.fm10.toString(), fireMoisture100hr: fd.fm100.toString(), temperature: `${weather.dry_temp}°F`, humidity: `${weather.rh}%`, windSpeed: `${weather.wind_sp} mph`, note: `Please verify the official Class Day (Low/Moderate/High) on the main map at ${FIRE_DANGER_URL} before burning.`, }; return { content: [ { type: "text", text: `Fire Weather Data for ${output.stationName} (Zone ${output.zoneId}):\n` + `Burning Index: ${output.burningIndex}\n` + `Fire Moisture (1-hr): ${output.fireMoisture1hr}\n` + `Fire Moisture (10-hr): ${output.fireMoisture10hr}\n` + `Fire Moisture (100-hr): ${output.fireMoisture100hr}\n` + `Weather: ${output.temperature}, RH ${output.humidity}, Wind ${output.windSpeed}\n` + `\nNote: ${output.note}`, }, ], structuredContent: output, }; } catch (error: any) { return { content: [ { type: "text", text: `Error checking fire danger: ${error.message}`, }, ], isError: true, }; } finally { if (browser) { await browser.close(); } } }); } - src/index.ts:14-14 (registration)Call to register the fire danger tool on the main MCP server instance.
registerFireDangerTool(server);