agent-creator
Use when creating expert agents. Generates agent.md with frontmatter, hooks, required sections, and skill references.
@fusengineInstall SkillDevelopment
Skill
/seo-hreflang
Use when auditing or generating hreflang tags for i18n/multilingual SEO.
Claude Code
$ npx -y skills add fusengine/claude-plugins --skill seo-hreflang --agent claude-code
Codex
$ npx skills add fusengine/claude-plugins --skill seo-hreflang -a codex -y
Cursor
$ npx skills add fusengine/claude-plugins --skill seo-hreflang -a cursor -y
Gemini CLI
$ npx skills add fusengine/claude-plugins --skill seo-hreflang -a gemini-cli -y
GitHub Copilot
$ npx skills add fusengine/claude-plugins --skill seo-hreflang -a github-copilot -y
OpenCode
$ npx skills add fusengine/claude-plugins --skill seo-hreflang -a opencode -y
Windsurf
$ npx skills add fusengine/claude-plugins --skill seo-hreflang -a windsurf -y
SKILL.md
seo-hreflang.SKILL.mdname: seo-hreflang
description: Use when auditing or generating hreflang tags for i18n/multilingual SEO.
user-invocable: false
related-skills: seo, seo-technical, seo-sitemap
<objective> Audits or generates hreflang across all three implementation surfaces — HTML `<link>` tags, HTTP headers, and XML sitemap `<xhtml:link>` entries — validating self-referencing, return tags, x-default, and ISO 639-1 + ISO 3166-1 code correctness via `scripts/parse-hreflang.ts`. Lists the common mistakes: missing self-reference, missing return tags, invalid region codes (`en-UK` vs `en-GB`), HTTP/HTTPS mismatch between alternates, and trailing-slash inconsistency. </objective>
Hreflang / i18n SEO
Workflow
1. Detect hreflang tags (HTML `<link>`, HTTP header, or XML sitemap) 2. Run `scripts/parse-hreflang.ts` → validate 3. Check self-referencing, return tags, x-default 4. Verify language/region codes (ISO 639-1 + ISO 3166-1)
Common Mistakes
- ❌ Missing self-reference (`<link rel="alternate" hreflang="fr" href="/fr/">` from `/fr/`)
- ❌ Missing return tags (A → B but not B → A)
- ❌ Invalid codes (`en-UK` instead of `en-GB`)
- ❌ HTTP/HTTPS mismatch between alternates
- ❌ Mixing trailing slashes
Implementation Options
1. **HTML head**: `<link rel="alternate" hreflang="fr-FR" href="https://example.com/fr/">` 2. **HTTP Header**: `Link: <https://example.com/fr/>; rel="alternate"; hreflang="fr-FR"` 3. **XML Sitemap**: `<xhtml:link rel="alternate" hreflang="fr-FR" href="https://example.com/fr/"/>`
x-default
Required for international landing/locale selector pages:
<link rel="alternate" hreflang="x-default" href="https://example.com/">
Read more
name: seo-hreflang description: Use when auditing or generating hreflang tags for i18n/multilingual SEO. user-invocable: false related-skills: seo, seo-technical, seo-sitemap
<objective> Audits or generates hreflang across all three implementation surfaces — HTML `<link>` tags, HTTP headers, and XML sitemap `<xhtml:link>` entries — validating self-referencing, return tags, x-default, and ISO 639-1 + ISO 3166-1 code correctness via `scripts/parse-hreflang.ts`. Lists the common mistakes: missing self-reference, missing return tags, invalid region codes (`en-UK` vs `en-GB`), HTTP/HTTPS mismatch between alternates, and trailing-slash inconsistency. </objective>
Hreflang / i18n SEO
Workflow
1. Detect hreflang tags (HTML `<link>`, HTTP header, or XML sitemap) 2. Run `scripts/parse-hreflang.ts` → validate 3. Check self-referencing, return tags, x-default 4. Verify language/region codes (ISO 639-1 + ISO 3166-1)
Common Mistakes
- ❌ Missing self-reference (`<link rel="alternate" hreflang="fr" href="/fr/">` from `/fr/`)
- ❌ Missing return tags (A → B but not B → A)
- ❌ Invalid codes (`en-UK` instead of `en-GB`)
- ❌ HTTP/HTTPS mismatch between alternates
- ❌ Mixing trailing slashes
Implementation Options
1. **HTML head**: `<link rel="alternate" hreflang="fr-FR" href="https://example.com/fr/">` 2. **HTTP Header**: `Link: <https://example.com/fr/>; rel="alternate"; hreflang="fr-FR"` 3. **XML Sitemap**: `<xhtml:link rel="alternate" hreflang="fr-FR" href="https://example.com/fr/"/>`
x-default
Required for international landing/locale selector pages:
<link rel="alternate" hreflang="x-default" href="https://example.com/">
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Questions about seo-hreflang.
- Which coding agents can use seo-hreflang?
- seo-hreflang installs in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf with the skills CLI, using each agent's flag shown on this page. Flowy's auto-invocation, which fires a skill when your prompt matches, runs in Claude Code only.