AI SEOスペシャリスト向けプロンプト：ClaudeをオンデマンドのSEOエキスパートとして活用する

A generic prompt like 'write an SEO-friendly blog post' gives Claude no domain expertise to apply. A structured role-based SEO prompt tells Claude the level of SEO expertise to apply, what specific outputs the task requires (title tag, H1, H2 structure, meta description, internal link anchors), what search intent the content must satisfy, and what not to do. The difference is between a general-purpose assistant and a domain expert — one produces readable prose that search engines ignore, the other produces content structured for both humans and crawlers from the first draft.

Three prompts cover the keyword research workflow: the Keyword Cluster Builder asks Claude to identify one primary keyword, five secondary semantic variants, five long-tail question-based keywords, and three adjacent keywords to avoid — with search intent and difficulty for each. The SERP Intent Analysis prompt identifies who is searching a keyword, what they are trying to accomplish, what buyer journey stage they are at, and what content format would satisfy the intent — plus three reasons a well-written piece might still fail to rank. The Content Gap Identification prompt compares the H2 structures of the top three results for a keyword and identifies topics all competitors cover, gaps none of them address, and one unique angle to differentiate the content.

Four prompts cover on-page work: the Title Tag and Meta Description Writer produces three title tag options under 60 characters each with different angles and three meta description options under 155 characters. The H2 Structure Optimizer reviews an existing outline, flags generic headings, suggests supporting keywords per section, and identifies missing sections based on common searcher questions. The Internal Linking Audit suggests anchor text, link direction, and SEO rationale for potential internal links between specified pages. The Schema Markup Selector recommends the most appropriate Schema.org types for a page, explains why each fits, lists required data fields, and ranks recommendations by SEO impact.

Paste the first 100 words of the article into Claude along with the target keyword and ask it to evaluate four things: whether the primary keyword appears naturally in the first paragraph; whether the opening confirms to the searcher they are in the right place; whether it earns the scroll by giving a reason to keep reading; and whether it avoids common weak openers like 'In today's world' or 'Have you ever wondered.' Claude then rewrites the opening at the same length if any of these criteria are not met. This single optimisation consistently improves both rankings and bounce rate by ensuring the page immediately satisfies search intent.

Individual AI SEO prompts configure Claude as an SEO specialist one task at a time — each prompt must be entered fresh and the context does not carry between sessions. An SEO Specialist Skill File loaded into Claude's system prompt makes SEO logic permanent and automatic across every conversation. Ask Claude to review a headline and it checks for keyword placement without being asked. Ask for a blog post outline and it structures for search intent first. Ask for a product description and it writes for both conversion and crawlers simultaneously. The skill file eliminates the need to re-establish SEO context on every task, making every Claude interaction SEO-aware by default.