{ "meta": { "templateCredsSetupCompleted": false, "description": "Strategy Radar v0.3 \u2014 MCP Draft Writer\n\nExposes a single MCP tool 'write_draft_brief' that the analyst's Claude Code (using their Claude Max subscription, NO Anthropic API key) can call to write a generated draft sector brief to the Strategy Radar app.\n\nDifference from the 18-node analysis-automation workflow: the LLM analysis (PDF extraction, opener generation, observations + actions) happens entirely in Claude Code on the analyst's machine. n8n is just the persistence hop: receive structured fields via MCP \u2192 HMAC-sign \u2192 POST /api/admin/briefs/from-n8n.\n\nSETUP:\n1. Workflow \u2192 Settings \u2192 Static Data, add:\n - N8N_CALLBACK_SECRET: same HMAC value as N8N_CALLBACK_SECRET in src/.env.local\n - APP_CALLBACK_URL: full URL to your app's endpoint, e.g.\n https://.ngrok.app/api/admin/briefs/from-n8n\n (n8n Cloud cannot reach localhost \u2014 use ngrok or a deployed app URL.)\n2. Activate the workflow.\n3. Click the MCP Server Trigger node \u2192 copy the MCP server URL + auth token.\n4. In your terminal:\n claude mcp add strategy-radar --header \"Authorization: Bearer \"\n5. Verify: claude mcp list \u2192 'strategy-radar' should be listed.\n6. Test by attaching a publication PDF in a Claude Code session and asking for a draft brief.\n\nIF THE MCP SERVER TRIGGER NODE DOES NOT IMPORT CLEANLY:\nDelete the imported trigger and drag a fresh 'MCP Server Trigger' (under AI / LangChain category) onto the canvas. Configure the tool 'write_draft_brief' with the JSON schema documented below. Connect its main output to 'Compose Draft' and the rest of the chain stays intact.\n\nINPUT SCHEMA FOR write_draft_brief (Claude Code passes these):\n - naceDivision (string) e.g., '31' or '49'\n - openerMarkdown (string) 200\u2013400 word Czech opener\n - publicationBodyMarkdown (string, optional) full Markdown of the analysed text\n - observations (array) 3 items: {title, body}\n - closingActions (array) 3 items: {title, body, time_horizon: '1m'|'3m'|'6-12m'}\n - jobId (string, optional) generated if absent\n\nPRIVACY: this workflow does not persist any payload. Configure n8n Cloud retention policy to match." }, "name": "Strategy Radar \u2014 MCP Draft Writer", "nodes": [ { "parameters": { "path": "strategy-radar-draft", "tools": [ { "name": "write_draft_brief", "description": "Write a draft sector brief to the Strategy Radar admin DB. Use this AFTER you have read the publication, generated a Czech-language opener (200\u2013400 words), 3 paired observations, and 3 paired actions with time-horizon tags. The draft will land at /admin in the app for analyst review and publish.", "inputSchema": { "type": "object", "properties": { "naceDivision": { "type": "string", "description": "Two-digit NACE division code, e.g. '31' (furniture) or '49' (freight)." }, "openerMarkdown": { "type": "string", "description": "Lay-person sector summary in Czech, 200\u2013400 words. Goes into the brief's 'Sektorov\u00e1 anal\u00fdza' opener block." }, "publicationBodyMarkdown": { "type": "string", "description": "Full Markdown of the source publication (optional). Stored as the brief's full_text_markdown." }, "observations": { "type": "array", "minItems": 1, "maxItems": 6, "items": { "type": "object", "properties": { "title": { "type": "string" }, "body": { "type": "string" } }, "required": [ "title", "body" ] } }, "closingActions": { "type": "array", "minItems": 1, "maxItems": 6, "items": { "type": "object", "properties": { "title": { "type": "string" }, "body": { "type": "string" }, "time_horizon": { "type": "string", "enum": [ "1m", "3m", "6-12m" ] } }, "required": [ "title", "body", "time_horizon" ] } }, "jobId": { "type": "string", "description": "Optional correlation ID. If omitted, the workflow generates one." } }, "required": [ "naceDivision", "openerMarkdown", "observations", "closingActions" ] } } ] }, "id": "node-mcp-trigger", "name": "MCP Server Trigger", "type": "@n8n/n8n-nodes-langchain.mcpTrigger", "typeVersion": 1, "position": [ 240, 300 ] }, { "parameters": { "jsCode": "// Compose the final draft payload per the n8n callback contract.\n// Same callback schema as the 18-node analysis-automation workflow's Compose Draft.\n// Difference: input fields come directly from the MCP tool call (Claude Code)\n// instead of being assembled from upstream HTTP/Code nodes.\n\nconst data = $input.first().json;\n\n// Generate a job_id if Claude Code didn't supply one.\nconst jobId = data.jobId || `mcp-${Date.now()}-${Math.random().toString(36).slice(2, 8)}`;\n\n// Czech month-year string for title + publication.heading metadata\nconst now = new Date();\nconst czechMonths = ['Leden','\u00danor','B\u0159ezen','Duben','Kv\u011bten','\u010cerven','\u010cervenec','Srpen','Z\u00e1\u0159\u00ed','\u0158\u00edjen','Listopad','Prosinec'];\nconst publicationMonth = `${czechMonths[now.getMonth()]} ${now.getFullYear()}`;\nconst isoMonth = `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, '0')}`;\n\nconst draft = {\n title: `Sektorov\u00e1 anal\u00fdza \u2014 NACE ${data.naceDivision} \u2014 ${publicationMonth}`,\n publication_month: isoMonth,\n publication: {\n heading: 'Sektorov\u00e1 anal\u00fdza',\n opener_markdown: data.openerMarkdown,\n full_text_markdown: data.publicationBodyMarkdown || '',\n source: `Ekonomick\u00e9 a strategick\u00e9 anal\u00fdzy \u010cesk\u00e9 spo\u0159itelny \u2014 ${publicationMonth}`,\n },\n observations: data.observations,\n closing_actions: data.closingActions,\n};\n\nconst callbackPayload = {\n jobId,\n status: 'done',\n draft,\n};\n\n// Read callback URL from Static Data so Claude Code doesn't need to know it.\nconst workflowData = $getWorkflowStaticData('global');\nconst callbackUrl = workflowData.APP_CALLBACK_URL || '';\nif (!callbackUrl) {\n throw new Error('APP_CALLBACK_URL is not configured. Set it in workflow Static Data.');\n}\n\nreturn [{\n json: { callbackUrl, callbackPayload, jobId }\n}];" }, "id": "node-compose-draft", "name": "Compose Draft", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 460, 300 ] }, { "parameters": { "jsCode": "// Sign the callback payload with HMAC-SHA256 using N8N_CALLBACK_SECRET.\n// Same logic as the 18-node workflow's Sign Callback node \u2014 produces the\n// X-Signature-256 header value the app's /api/admin/briefs/from-n8n route\n// validates before accepting the draft.\nconst crypto = require('crypto');\n\nconst workflowData = $getWorkflowStaticData('global');\nconst secret = workflowData.N8N_CALLBACK_SECRET || process.env.N8N_CALLBACK_SECRET || '';\n\nif (!secret) {\n throw new Error('N8N_CALLBACK_SECRET is not configured. Set it in workflow Static Data.');\n}\n\nconst data = $input.first().json;\nconst bodyStr = JSON.stringify(data.callbackPayload);\nconst sig = crypto.createHmac('sha256', secret).update(bodyStr, 'utf8').digest('hex');\n\nreturn [{\n json: {\n callbackUrl: data.callbackUrl,\n callbackBody: bodyStr,\n signatureHeader: `sha256=${sig}`,\n jobId: data.jobId,\n }\n}];" }, "id": "node-sign-callback", "name": "Sign Callback", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 680, 300 ] }, { "parameters": { "method": "POST", "url": "={{ $json.callbackUrl }}", "sendHeaders": true, "headerParameters": { "parameters": [ { "name": "Content-Type", "value": "application/json" }, { "name": "X-Signature-256", "value": "={{ $json.signatureHeader }}" } ] }, "sendBody": true, "specifyBody": "string", "body": "={{ $json.callbackBody }}", "options": { "timeout": 30000, "response": { "response": { "neverError": true, "responseFormat": "json" } } } }, "id": "node-send-callback", "name": "Send Callback", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 900, 300 ] }, { "parameters": { "jsCode": "// Format the MCP tool's return value for Claude Code.\n// Inspect the HTTP response from /api/admin/briefs/from-n8n and convert\n// to a structured success/failure payload that Claude Code can interpret.\n\nconst input = $input.first();\nconst data = input.json;\nconst statusCode = data.statusCode ?? data.statusCode2 ?? 200;\nconst jobId = $('Sign Callback').first().json.jobId;\n\nconst body = data.body || data;\n\nif (statusCode >= 200 && statusCode < 300) {\n return [{\n json: {\n success: true,\n jobId,\n message: `Draft brief written. Job ID: ${jobId}. Open /admin in the browser to review and publish.`,\n appResponse: body,\n }\n }];\n}\n\nreturn [{\n json: {\n success: false,\n jobId,\n statusCode,\n error: `Callback POST failed with status ${statusCode}.`,\n appResponse: body,\n }\n}];" }, "id": "node-format-response", "name": "Format Response", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1120, 300 ] } ], "connections": { "MCP Server Trigger": { "main": [ [ { "node": "Compose Draft", "type": "main", "index": 0 } ] ] }, "Compose Draft": { "main": [ [ { "node": "Sign Callback", "type": "main", "index": 0 } ] ] }, "Sign Callback": { "main": [ [ { "node": "Send Callback", "type": "main", "index": 0 } ] ] }, "Send Callback": { "main": [ [ { "node": "Format Response", "type": "main", "index": 0 } ] ] } }, "settings": { "executionOrder": "v1" }, "active": false, "versionId": "1", "id": "strategy-radar-mcp-draft-writer" }