Hml — Trend → Brief → Approval Queue

The workflow JSON

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{
  "name": "HML \u2014 Trend \u2192 brief \u2192 approval queue",
  "nodes": [
    {
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "days",
              "daysInterval": 1,
              "triggerAtHour": 8
            }
          ]
        }
      },
      "id": "cron-1",
      "name": "Daily 08:00",
      "type": "n8n-nodes-base.cron",
      "typeVersion": 1,
      "position": [
        200,
        300
      ]
    },
    {
      "parameters": {
        "url": "https://hn.algolia.com/api/v1/search?tags=front_page",
        "options": {}
      },
      "id": "http-1",
      "name": "Pull HN front page",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4,
      "position": [
        440,
        220
      ]
    },
    {
      "parameters": {
        "functionCode": "// Pick the top 5 stories with > 50 points; trim payload.\nconst hits = ($input.first().json.hits||[]).filter(h => (h.points||0) > 50).slice(0,5);\nreturn hits.map(h => ({ json: { title: h.title, url: h.url, points: h.points } }));"
      },
      "id": "func-1",
      "name": "Filter top 5",
      "type": "n8n-nodes-base.function",
      "typeVersion": 1,
      "position": [
        680,
        220
      ]
    },
    {
      "parameters": {
        "url": "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent?key={{$env.GEMINI_API_KEY}}",
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        },
        "sendHeaders": true,
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"systemInstruction\": { \"parts\": [{ \"text\": \"You are an editor for Brand A (AI Escape). Voice: confident peer, plain English, specific. Reject any item that is off-brand: crypto/web3, generic AI hype, tool-of-the-week. Output strict JSON only.\" }] },\n  \"contents\": [{ \"role\": \"user\", \"parts\": [{ \"text\": \"For this story, decide: in-scope (Y/N), proposed angle (one sentence), audience match (1-5), kill or keep, and a brief title.\\n\\nStory: {{$json.title}}\\nURL: {{$json.url}}\\n\\nReturn JSON: {\\\"keep\\\":true|false,\\\"title\\\":\\\"...\\\",\\\"angle\\\":\\\"...\\\",\\\"score\\\":1-5,\\\"reason\\\":\\\"...\\\"}.\" }] }],\n  \"generationConfig\": { \"temperature\": 0.2, \"maxOutputTokens\": 256 }\n}",
        "method": "POST",
        "options": {}
      },
      "id": "http-2",
      "name": "Gemini: score & angle",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4,
      "position": [
        920,
        220
      ]
    },
    {
      "parameters": {
        "functionCode": "// Extract JSON from the Gemini response and short-circuit if 'keep' is false.\nconst raw = $input.first().json?.candidates?.[0]?.content?.parts?.[0]?.text || '{}';\nlet parsed;\ntry { parsed = JSON.parse(raw.replace(/^```json|```$/g, '').trim()); } catch (e) { parsed = { keep: false, reason: 'parse_error' }; }\nreturn parsed.keep ? [{ json: parsed }] : [];"
      },
      "id": "func-2",
      "name": "Keep in-scope only",
      "type": "n8n-nodes-base.function",
      "typeVersion": 1,
      "position": [
        1160,
        220
      ]
    },
    {
      "parameters": {
        "url": "={{$env.SUPABASE_URL}}/rest/v1/content_asset",
        "headerParameters": {
          "parameters": [
            {
              "name": "apikey",
              "value": "={{$env.SUPABASE_SERVICE_ROLE_KEY}}"
            },
            {
              "name": "Authorization",
              "value": "=Bearer {{$env.SUPABASE_SERVICE_ROLE_KEY}}"
            },
            {
              "name": "Content-Type",
              "value": "application/json"
            },
            {
              "name": "Prefer",
              "value": "return=minimal"
            }
          ]
        },
        "sendHeaders": true,
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"brand_id\": 1,\n  \"url\": \"/drafts/{{ Date.now() }}\",\n  \"title\": \"{{$json.title}}\",\n  \"type\": \"blog\",\n  \"topic\": \"{{$json.angle}}\",\n  \"ai_augmentation\": \"assist\",\n  \"status\": \"brief\"\n}",
        "method": "POST",
        "options": {}
      },
      "id": "http-3",
      "name": "Insert brief into content_asset",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4,
      "position": [
        1400,
        220
      ]
    }
  ],
  "connections": {
    "Daily 08:00": {
      "main": [
        [
          {
            "node": "Pull HN front page",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Pull HN front page": {
      "main": [
        [
          {
            "node": "Filter top 5",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Filter top 5": {
      "main": [
        [
          {
            "node": "Gemini: score & angle",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Gemini: score & angle": {
      "main": [
        [
          {
            "node": "Keep in-scope only",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Keep in-scope only": {
      "main": [
        [
          {
            "node": "Insert brief into content_asset",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "1",
  "id": "hml_trend_to_brief"
}

About this workflow

HML — Trend → brief → approval queue. Uses httpRequest. Scheduled trigger; 6 nodes.

Source: https://github.com/zebadee2kk/HamMediaLabs/blob/main/automation/n8n/workflows/trend-to-brief.json — original creator credit. Request a take-down →

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