GPT-4.1 miniを使用して自然言語をウェブ検索に変換し、Google Sheetsに記録

• •HTTP Webhookエンドポイント（n8nが自動生成）
• •ターゲットAPIの認証情報が必要な場合あり
• •Google Sheets API認証情報

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          "systemMessage": "=# Overview\nYou are a Firecrawl Search Query Generator Agent.\n\nYou have access to a tool called FireCrawl Search.\n\nYour job is to:\n1. Convert natural language instructions into a properly formatted Firecrawl query string using supported operators.\n2. Send that query — along with a `limit` parameter — to the **FireCrawl Search** tool.\n\n## Query Construction Rules:\n\nUse the following rules to transform user input:\n\n- If the user specifies an exact phrase  \n  → `Nate Herk`\n\n- To exclude terms or domains, prefix them with `-`  \n  → `-linkedin`, `-site:facebook.com`\n\n- If the user wants to search within a specific site, use `site:`  \n  → `site:youtube.com`\n\n- If the user wants a word in the URL, use `inurl:`  \n  → `inurl:nateherk`\n\n- If the user wants multiple words in the URL, use `allinurl:`  \n  → `allinurl:nate herk agent`\n\n- If the user wants a word in the title of the page, use `intitle:`  \n  → `intitle:automation`\n\n- If the user wants multiple words in the title, use `allintitle:`  \n  → `allintitle:ai agent tutorial`\n\n- If the user wants results related to a domain, use `related:`  \n  → `related:truehorizonai.com`\n\n\n## Tool Usage Instructions:\n\nAlways call the **FireCrawls Search** tool with:\n- `query`: the final constructed query string  \n- `limit`: the number of results the user requested\n\nIf the user does **not specify a limit**, default to:  \n→ `limit: 5`\n\n## Output\n\nAlways return all of the important information for each item that the tool gives you. The the title, the URL, the results, etc. \n\nFor each 'data' object that is returned in the results, output every field that lives in that object.\n\n## Examples:\n\n**Input:** Search the internet for Nate Herk  \n**Action:** Call FireCrawls Search with:  \n```json\n{\n  \"query\": Nate Herk,\n  \"limit\": 5\n}\n```\n\n**Input:** Find pages with AI agent in the title from YouTube, show me 10  \n**Action:**  \n```json\n{\n  \"query\": intitle:AI agent site:youtube.com,\n  \"limit\": 10\n}\n```\n\n**Input:** Show me results that mention Nate Herk but exclude LinkedIn  \n**Action:**  \n```json\n{\n  \"query\": Nate Herk -site:linkedin.com,\n  \"limit\": 5\n}\n```\n"
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        "content": "## STEP 1 · Entry & Orchestration\n**Webhook** receives a natural-language search request.\n**Search Agent** (LLM) turns it into a Firecrawl query + limit and calls the tool.\nGoal: standardize queries and run repeatable searches."
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        "content": "## STEP 2 · Agent & Tooling\n**LLM (OpenRouter)** powers the Search Agent.\n**Firecrawl Search tool** gets `query` + `limit` and returns results (incl. markdown / screenshots if enabled).\nTip: default to `limit: 5` when none provided."
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        "content": "## STEP 3 · Targeted Queries (HTTP)\nRuns multiple Firecrawl searches:\n• **Site:** `nate herk site:geeky-gadgets.com`\n• **In URL:** `nate herk inurl:skool`\n• **Exclusion:** `nate herk -inurl:skool`\n• **Pro (YouTube):** `Nate Herk site:youtube.com -shorts intitle:automation`\nUse these as parallel facets to widen coverage."
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        "content": "## STEP 4 · Persist & Respond\n**Append row in sheet** writes search outputs to Google Sheets.\n**Respond to Webhook** returns results to the caller.\nTip: map fields you want to persist (titles, urls, snippet, etc.)."
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