{"slug":"addyosmani-seo","name":"seo","description":"Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\".","long_description":"---\nname: seo\ndescription: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\".\nlicense: MIT\nmetadata:\n  author: web-quality-skills\n  version: \"2.0\"\n---\n\n# SEO optimization\n\nSearch engine optimization based on Lighthouse SEO audits and Google Search guidelines. Focus on technical SEO, on-page optimization, and structured data.\n\n## Evidence-led audit workflow\n\nWhen a rendered page is available:\n\n1. Run live Lighthouse SEO and Agentic Browsing checks when that capability is available; with Chrome DevTools MCP, use `lighthouse_audit`. Use the results to localize rendered-page failures.\n2. Inspect signals Lighthouse cannot establish on its own: response headers, redirects, `robots.txt`, sitemap coverage, canonical consistency across page templates, structured-data eligibility, and Search Console evidence when the user provides access.\n3. Separate technical crawl/index findings from content quality and authority. Do not invent ranking-factor weights or promise ranking changes.\n4. Fix the source and re-run the same checks. For indexation or ranking outcomes, report that search-engine validation remains pending.\n\nIf live tools are unavailable, use category-specific Lighthouse CLI output plus direct source and HTTP inspection. A Lighthouse SEO score covers a useful subset of technical checks; it is not a prediction of rankings.\n\n| Area | What this skill can verify |\n|------|----------------------------|\n| Crawl and index controls | Technical configuration and consistency |\n| Rendered metadata and semantics | Presence, validity, and page-template issues |\n| Structured data | Syntax and eligibility signals, not guaranteed rich results |\n| Core Web Vitals | Link to measured field/lab evidence from the Core Web Vitals skill |\n| Content usefulness and authority | Review quality, but do not assign synthetic ranking percentages |\n\n---\n\n## Technical SEO\n\n### Crawlability\n\n**robots.txt:**\n```text\n# /robots.txt\nUser-agent: *\nAllow: /\n\n# Block admin/private areas\nDisallow: /admin/\nDisallow: /api/\nDisallow: /private/\n\n# Don't block resources needed for rendering\n# ❌ Disallow: /static/\n\nSitemap: https://example.com/sitemap.xml\n```\n\n**Meta robots:**\n```html\n<!-- Default: indexable, followable -->\n<meta name=\"robots\" content=\"index, follow\">\n\n<!-- Noindex specific pages -->\n<meta name=\"robots\" content=\"noindex, nofollow\">\n\n<!-- Indexable but don't follow links -->\n<meta name=\"robots\" content=\"index, nofollow\">\n\n<!-- Control snippets -->\n<meta name=\"robots\" content=\"max-snippet:150, max-image-preview:large\">\n```\n\n**Canonical URLs:**\n```html\n<!-- Prevent duplicate content issues -->\n<link rel=\"canonical\" href=\"https://example.com/page\">\n\n<!-- Self-referencing canonical (recommended) -->\n<link rel=\"canonical\" href=\"https://example.com/current-page\">\n\n<!-- For paginated content -->\n<link rel=\"canonical\" href=\"https://example.com/products\">\n<!-- Or use rel=\"prev\" / rel=\"next\" for explicit pagination -->\n```\n\n### XML sitemap\n\n```xml\n<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">\n  <url>\n    <loc>https://example.com/</loc>\n    <lastmod>2024-01-15</lastmod>\n    <changefreq>daily</changefreq>\n    <priority>1.0</priority>\n  </url>\n  <url>\n    <loc>https://example.com/products</loc>\n    <lastmod>2024-01-14</lastmod>\n    <changefreq>weekly</changefreq>\n    <priority>0.8</priority>\n  </url>\n</urlset>\n```\n\n**Sitemap best practices:**\n- Maximum 50,000 URLs or 50MB per sitemap\n- Use sitemap index for larger sites\n- Include only canonical, indexable URLs\n- Update `lastmod` when content changes\n- Submit to Google Search Console\n\n### URL structure\n\n```\n✅ Good URLs:\nhttps://example.com/products/blue-widget\nhttps://example.com/blog/how-to-use-widgets\n\n❌ Poor URLs:\nhttps://example.com/p?id=12345\nhttps://example.com/products/item/category/subcategory/blue-widget-2024-sale-discount\n```\n\n**URL guidelines:**\n- Use hyphens, not underscores\n- Lowercase only\n- Keep short (< 75 characters)\n- Include target keywords naturally\n- Avoid parameters when possible\n- Use HTTPS always\n\n### HTTPS & security\n\n```html\n<!-- Ensure all resources use HTTPS -->\n<img src=\"https://example.com/image.jpg\">\n\n<!-- Not: -->\n<img src=\"http://example.com/image.jpg\">\n```\n\n**Security headers for SEO trust signals:**\n```\nStrict-Transport-Security: max-age=31536000; includeSubDomains\nX-Content-Type-Options: nosniff\nX-Frame-Options: DENY\n```\n\n---\n\n## On-page SEO\n\n### Title tags\n\n```html\n<!-- ❌ Missing or generic -->\n<title>Page</title>\n<title>Home</title>\n\n<!-- ✅ Descriptive with primary keyword -->\n<title>Blue Widgets for Sale | Premium Quality | Example Store</title>\n```\n\n**Title tag guidelines:**\n- Use 50–60 characters only as a rough linting proxy, not a pass/fail limit. Google truncates title links to fit the rendered device width, so preview width when tooling supports it.\n- Describe the page topic naturally near the beginning\n- Unique for every page\n- Add the brand when it helps users distinguish the result\n- Action-oriented when appropriate\n\nTreat title-link rewriting separately from truncation. Google may build a different title link from the visible page title, headings, anchor text, and other sources even when the `<title>` is short; investigate accuracy and consistency rather than shortening it automatically. See [Google's title-link guidance](https://developers.google.com/search/docs/appearance/title-link).\n\n### Meta descriptions\n\n```html\n<!-- ❌ Missing or duplicate -->\n<meta name=\"description\" content=\"\">\n\n<!-- ✅ Compelling and unique -->\n<meta name=\"description\" content=\"Shop premium blue widgets with free shipping. 30-day returns. Rated 4.9/5 by 10,000+ customers. Order today and save 20%.\">\n```\n\n**Meta description guidelines:**\n- Use roughly 150–160 characters only as a linting proxy. Snippets are query- and device-dependent, and Google may select page content instead of the meta description.\n- Use the page topic naturally\n- Compelling call-to-action\n- Unique for every page\n- Matches page content\n\n### Heading structure\n\n```html\n<!-- ❌ Poor structure -->\n<h2>Welcome to Our Store</h2>\n<h4>Products</h4>\n<h1>Contact Us</h1>\n\n<!-- ✅ Proper hierarchy -->\n<h1>Blue Widgets - Premium Quality</h1>\n  <h2>Product Features</h2>\n    <h3>Durability</h3>\n    <h3>Design</h3>\n  <h2>Customer Reviews</h2>\n  <h2>Pricing</h2>\n```\n\n**Heading guidelines:**\n- Make the primary page heading descriptive and the hierarchy unambiguous; do not fail a page solely because valid HTML contains more than one `<h1>`\n- Logical hierarchy (don't skip levels)\n- Include keywords naturally\n- Descriptive, not generic\n\n### Image SEO\n\n```html\n<!-- ❌ Poor image SEO -->\n<img src=\"IMG_12345.jpg\">\n\n<!-- ✅ Optimized image -->\n<img src=\"blue-widget-product-photo.webp\"\n     alt=\"Blue widget with chrome finish, side view showing control panel\"\n     width=\"800\"\n     height=\"600\"\n     loading=\"lazy\">\n```\n\n**Image guidelines:**\n- Descriptive filenames with keywords\n- Alt text describes the image content\n- Compressed and properly sized\n- WebP/AVIF with fallbacks\n- Lazy load below-fold images\n\n### Internal linking\n\n```html\n<!-- ❌ Non-descriptive -->\n<a href=\"/products\">Click here</a>\n<a href=\"/widgets\">Read more</a>\n\n<!-- ✅ Descriptive anchor text -->\n<a href=\"/products/blue-widgets\">Browse our blue widget collection</a>\n<a href=\"/guides/widget-maintenance\">Learn how to maintain your widgets</a>\n```\n\n**Linking guidelines:**\n- Descriptive anchor text with keywords\n- Link to relevant internal pages\n- Reasonable number of links per page\n- Fix broken links promptly\n- Use breadcrumbs for hierarchy\n\n---\n\n## Structured data (JSON-LD)\n\nRead [the structured data reference](references/STRUCTURED-DATA.md) when the user requests schema markup or an audit surfaces a structured-data issue. It contains Organization, Article, Product, FAQ, and Breadcrumb examples plus validation links.\n\n* **Describe visible, accurate content.** Do not add a type or claim solely to obtain a rich result.\n* **Use the most specific applicable type.** Keep identifiers and absolute URLs stable across renders.\n* **Validate rendered output.** Passing syntax does not guarantee search-engine eligibility or display.\n\n## Agentic browsing and AI discoverability\n\nKeep these concepts separate:\n\n* **Lighthouse Agentic Browsing** measures technical signals that help an assistant understand and interact with the rendered page. Current checks include the agent-facing accessibility tree, optional `llms.txt`, and WebMCP registrations, schemas, and form coverage when present.\n* **Search indexing and ranking** depend on search-engine systems and cannot be inferred from the Agentic Browsing score.\n* **AI ingestion or citation** is product-specific. A technically browsable page or valid `llms.txt` file does not prove that an AI product will ingest, rank, or cite it.\n\nPrioritize semantic HTML, descriptive labels, crawlable content, accurate metadata, and clear page structure because they benefit people, search engines, and agents. Add WebMCP tools only when the application has useful actions to expose and the user wants that integration; validate tool names, descriptions, schemas, and form annotations with Lighthouse.\n\n### Crawler controls are product-specific\n\nAudit each documented user agent separately instead of applying a blanket \"AI bot\" rule:\n\n| Control | Documented purpose | Effect of blocking |\n|---------|--------------------|--------------------|\n| `OAI-SearchBot` | ChatGPT search discovery | Prevents page content from being included in ChatGPT summaries and snippets; a link and title may still surface through third-party discovery |\n| `PerplexityBot` | Perplexity search indexing | Prevents that crawler from indexing the blocked content for search results |\n| `Claude-SearchBot` / `Claude-User` | Claude search indexing / user-directed retrieval | May reduce search visibility / prevents retrieval for user-directed requests |\n| `Google-Extended` | Controls certain Gemini training and grounding uses of content Google crawls | Does not affect Google Search inclusion or ranking |\n\nTraining controls such as `GPTBot` and `ClaudeBot` are distinct from search and user-fetch controls. `GoogleOther` is a generic crawler, not an AI-search visibility switch. Verify current names and consequences in the vendors' maintained documentation: [OpenAI](https://help.openai.com/en/articles/12627856-publishers-and-developers-faq), [Perplexity](https://docs.perplexity.ai/docs/resources/perplexity-crawlers), [Anthropic](https://privacy.anthropic.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler), and [Google](https://developers.google.com/crawling/docs/crawlers-fetchers/google-common-crawlers).\n\n### `llms.txt` is optional\n\n`llms.txt` is an experimental proposal, not a cross-vendor discovery standard. Lighthouse can validate the availability and shape of `/llms.txt`, but that does not show that a target product reads it. Add one only when the user requests it or a documented consumer supports it; do not recommend it ahead of crawlability, semantic HTML, accurate metadata, and useful content. Never treat it as a ranking or citation factor, duplicate the sitemap, or reorganize content solely to raise this audit.\n\n---\n\n## Mobile SEO\n\n### Responsive design\n\n```html\n<!-- ❌ Not mobile-friendly -->\n<meta name=\"viewport\" content=\"width=1024\">\n\n<!-- ✅ Responsive viewport -->\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n```\n\n### Tap targets\n\n```css\n/* ❌ Too small for mobile */\n.small-link {\n  padding: 4px;\n  font-size: 12px;\n}\n\n/* ✅ Adequate tap target */\n.mobile-friendly-link {\n  padding: 12px;\n  font-size: 16px;\n  min-height: 48px;\n  min-width: 48px;\n}\n```\n\n### Font sizes\n\n```css\n/* ❌ Too small on mobile */\nbody {\n  font-size: 10px;\n}\n\n/* ✅ Readable without zooming */\nbody {\n  font-size: 16px;\n  li","tagline":"Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\".","category":"research","tags":["agent-skill"],"author":"addyosmani","verified":false,"attribution":{"status":"registry_indexed","statusLabel":"Registry indexed","shortLabel":"REGISTRY INDEXED","sourceLabel":"github fast track","sourceDetail":"addyosmani/web-quality-skills","creatorName":"addyosmani","creatorUrl":"https://github.com/addyosmani","sourceUrl":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","indexedBy":"OpenAgentSkill community index","claimUrl":"https://www.openagentskill.com/skills/addyosmani-seo#claim-this-skill","claimCta":"Claim this skill","trustNote":"This listing was indexed from public sources and is not marked official until a maintainer claim is approved.","publicNote":"Attribution links to the public repository or creator profile. Creators can claim the listing to update ownership signals."},"stats":{"stars":2732,"forks":249,"verified_installs":0,"successful_runs":0,"total_outcomes":0,"rating":0,"review_count":0,"quality_score":47.16},"quality":{"score":81,"tier":"strong","label":"Strong","summary":"Solid option that is likely worth shortlisting for production workflows.","signals":[{"label":"GitHub stars","value":"2.7K","tone":"positive"},{"label":"Freshness","value":"11d ago","tone":"positive"},{"label":"Install ready","value":"Yes","tone":"positive"},{"label":"License","value":"MIT","tone":"neutral"}],"warnings":[]},"trust":{"version":"trust-score-v5","score":71,"base_score":79,"outcome_confidence":0,"tier":"review","label":"Sandbox only","summary":"Useful candidate with missing or mixed trust signals. Keep it in an isolated workspace until the outcome loop proves task fit.","recommendedAction":"Run only in a sandbox and compare close alternatives before using it for real work.","decision":{"install_policy":"human_review_before_install","auto_install_allowed":false,"human_review_required":true,"sandbox_first":true,"agent_action":"Compare alternatives before installing.","reasoning":["71/100 Trust Score v5","79/100 Trust Score v4 baseline","Needs more real agent outcomes before unattended install","Install path is available","Review before production"],"review_required_when":["The workspace contains production secrets, payments, private customer data, or irreversible actions.","The install command requests shell, network, credential, database, or broad filesystem access.","Outcome evidence is missing, recently failed, or required human review.","Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"]},"dimensions":[{"id":"github_adoption","label":"GitHub adoption","score":86,"weight":0.13,"status":"pass","detail":"2.7K GitHub stars"},{"id":"repo_activity","label":"Stars/forks activity","score":77,"weight":0.08,"status":"info","detail":"2.7K stars, 249 forks; issue activity unavailable in current metadata"},{"id":"maintenance","label":"Recent maintenance","score":100,"weight":0.14,"status":"pass","detail":"11d since push"},{"id":"license","label":"License clarity","score":86,"weight":0.09,"status":"pass","detail":"MIT"},{"id":"documentation","label":"README/SKILL.md completeness","score":86,"weight":0.14,"status":"pass","detail":"Metadata includes enough usage and workflow context"},{"id":"dependency_risk","label":"Dependency/runtime risk","score":64,"weight":0.12,"status":"info","detail":"command execution surface, network or browser surface"},{"id":"installability","label":"Install availability","score":92,"weight":0.1,"status":"pass","detail":"npx skills add addyosmani/web-quality-skills --skill seo"},{"id":"install_safety","label":"Install command safety","score":92,"weight":0.1,"status":"pass","detail":"standard package or runtime install path"},{"id":"permission_surface","label":"Permission surface","score":36,"weight":0.07,"status":"fail","detail":"shell or command execution, filesystem or document access"},{"id":"repository","label":"Repository evidence","score":86,"weight":0.04,"status":"pass","detail":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo"},{"id":"review_status","label":"Review status","score":88,"weight":0.05,"status":"pass","detail":"AI review data available"},{"id":"agent_outcomes","label":"Agent Proven outcomes","score":54,"weight":0.13,"status":"info","detail":"No agent outcome data yet"}],"checks":[{"status":"pass","label":"GitHub adoption","detail":"2.7K GitHub stars"},{"status":"info","label":"Stars/forks activity","detail":"2.7K stars, 249 forks; issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"11d since push"},{"status":"pass","label":"License clarity","detail":"MIT"},{"status":"pass","label":"README/SKILL.md completeness","detail":"Metadata includes enough usage and workflow context"},{"status":"info","label":"Dependency/runtime risk","detail":"command execution surface, network or browser surface"},{"status":"pass","label":"Install availability","detail":"npx skills add addyosmani/web-quality-skills --skill seo"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"fail","label":"Permission surface","detail":"shell or command execution, filesystem or document access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo"},{"status":"pass","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"info","label":"OpenAgentSkill usage","detail":"No local usage activity yet"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Meaningful GitHub adoption signal","Install command has no obvious high-risk pattern","Outcome loop is ready but needs first real agent run"],"warnings":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access","No real agent outcome reports yet","Human review required before unattended installation"],"evidence":{"stars":"2.7K GitHub stars","repoActivity":"2.7K stars, 249 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","install":"npx skills add addyosmani/web-quality-skills --skill seo","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet","agentProvenScore":0,"outcomeConfidence":"0%","installPolicy":"human_review_before_install"},"installReadiness":{"ready":true,"command":"npx skills add addyosmani/web-quality-skills --skill seo","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","11d since push","Financial domain: human review is required before use in a live investment workflow.","Trust Score v5 requires review or sandbox-only use before install."]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Compare alternatives before installing."},"outcome_loop":{"version":"openagentskill-agent-outcome-v4","required_after_install":true,"endpoint":"/api/agent/outcome","method":"POST","event_id_source":"feedback.event_id, install_receipt.resolve_event_id, or decision_packet.outcome_feedback.event_id","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"required_fields":["event_id","skill_slug","task"],"quality_fields":["task_success","output_quality","error_type","human_review_required","used_in_production","workspace","evidence_url","time_to_useful_ms","source_version"],"ranking_inputs_updated":["Trust Score v5 outcome confidence","Agent Proven Score","Resolve ranking task-fit evidence","Skill detail machine-readable metadata","Outcome leaderboard"]},"agent_contract":{"suited_tasks":["research","agent-skill"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"install_command":"npx skills add addyosmani/web-quality-skills --skill seo","trust_score":71,"trust_version":"trust-score-v5","risk_level":"medium","do_not_use_when":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"before_install":["Read the audit page and machine-readable metadata.","Confirm the install command, license, and permission surface fit the workspace.","Get explicit human approval or choose an alternative before installing."],"after_run":["Report the outcome to /api/agent/outcome using the resolve event id.","Include output_quality, workspace, human_review_required, and evidence_url when available.","Re-resolve before broad production rollout."]},"bestFor":["research","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"knownRisks":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"],"backward_compatible":{"trust_score_v4":{"version":"trust-score-v4","score":79,"tier":"strong","label":"Strong shortlist","summary":"Good trust signals with a few areas worth checking before rollout."}}},"trust_score_v5":{"version":"trust-score-v5","score":71,"base_score":79,"outcome_confidence":0,"tier":"review","label":"Sandbox only","summary":"Useful candidate with missing or mixed trust signals. Keep it in an isolated workspace until the outcome loop proves task fit.","recommendedAction":"Run only in a sandbox and compare close alternatives before using it for real work.","decision":{"install_policy":"human_review_before_install","auto_install_allowed":false,"human_review_required":true,"sandbox_first":true,"agent_action":"Compare alternatives before installing.","reasoning":["71/100 Trust Score v5","79/100 Trust Score v4 baseline","Needs more real agent outcomes before unattended install","Install path is available","Review before production"],"review_required_when":["The workspace contains production secrets, payments, private customer data, or irreversible actions.","The install command requests shell, network, credential, database, or broad filesystem access.","Outcome evidence is missing, recently failed, or required human review.","Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"]},"dimensions":[{"id":"github_adoption","label":"GitHub adoption","score":86,"weight":0.13,"status":"pass","detail":"2.7K GitHub stars"},{"id":"repo_activity","label":"Stars/forks activity","score":77,"weight":0.08,"status":"info","detail":"2.7K stars, 249 forks; issue activity unavailable in current metadata"},{"id":"maintenance","label":"Recent maintenance","score":100,"weight":0.14,"status":"pass","detail":"11d since push"},{"id":"license","label":"License clarity","score":86,"weight":0.09,"status":"pass","detail":"MIT"},{"id":"documentation","label":"README/SKILL.md completeness","score":86,"weight":0.14,"status":"pass","detail":"Metadata includes enough usage and workflow context"},{"id":"dependency_risk","label":"Dependency/runtime risk","score":64,"weight":0.12,"status":"info","detail":"command execution surface, network or browser surface"},{"id":"installability","label":"Install availability","score":92,"weight":0.1,"status":"pass","detail":"npx skills add addyosmani/web-quality-skills --skill seo"},{"id":"install_safety","label":"Install command safety","score":92,"weight":0.1,"status":"pass","detail":"standard package or runtime install path"},{"id":"permission_surface","label":"Permission surface","score":36,"weight":0.07,"status":"fail","detail":"shell or command execution, filesystem or document access"},{"id":"repository","label":"Repository evidence","score":86,"weight":0.04,"status":"pass","detail":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo"},{"id":"review_status","label":"Review status","score":88,"weight":0.05,"status":"pass","detail":"AI review data available"},{"id":"agent_outcomes","label":"Agent Proven outcomes","score":54,"weight":0.13,"status":"info","detail":"No agent outcome data yet"}],"checks":[{"status":"pass","label":"GitHub adoption","detail":"2.7K GitHub stars"},{"status":"info","label":"Stars/forks activity","detail":"2.7K stars, 249 forks; issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"11d since push"},{"status":"pass","label":"License clarity","detail":"MIT"},{"status":"pass","label":"README/SKILL.md completeness","detail":"Metadata includes enough usage and workflow context"},{"status":"info","label":"Dependency/runtime risk","detail":"command execution surface, network or browser surface"},{"status":"pass","label":"Install availability","detail":"npx skills add addyosmani/web-quality-skills --skill seo"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"fail","label":"Permission surface","detail":"shell or command execution, filesystem or document access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo"},{"status":"pass","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"info","label":"OpenAgentSkill usage","detail":"No local usage activity yet"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Meaningful GitHub adoption signal","Install command has no obvious high-risk pattern","Outcome loop is ready but needs first real agent run"],"warnings":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access","No real agent outcome reports yet","Human review required before unattended installation"],"evidence":{"stars":"2.7K GitHub stars","repoActivity":"2.7K stars, 249 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","install":"npx skills add addyosmani/web-quality-skills --skill seo","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet","agentProvenScore":0,"outcomeConfidence":"0%","installPolicy":"human_review_before_install"},"installReadiness":{"ready":true,"command":"npx skills add addyosmani/web-quality-skills --skill seo","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","11d since push","Financial domain: human review is required before use in a live investment workflow.","Trust Score v5 requires review or sandbox-only use before install."]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Compare alternatives before installing."},"outcome_loop":{"version":"openagentskill-agent-outcome-v4","required_after_install":true,"endpoint":"/api/agent/outcome","method":"POST","event_id_source":"feedback.event_id, install_receipt.resolve_event_id, or decision_packet.outcome_feedback.event_id","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"required_fields":["event_id","skill_slug","task"],"quality_fields":["task_success","output_quality","error_type","human_review_required","used_in_production","workspace","evidence_url","time_to_useful_ms","source_version"],"ranking_inputs_updated":["Trust Score v5 outcome confidence","Agent Proven Score","Resolve ranking task-fit evidence","Skill detail machine-readable metadata","Outcome leaderboard"]},"agent_contract":{"suited_tasks":["research","agent-skill"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"install_command":"npx skills add addyosmani/web-quality-skills --skill seo","trust_score":71,"trust_version":"trust-score-v5","risk_level":"medium","do_not_use_when":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"before_install":["Read the audit page and machine-readable metadata.","Confirm the install command, license, and permission surface fit the workspace.","Get explicit human approval or choose an alternative before installing."],"after_run":["Report the outcome to /api/agent/outcome using the resolve event id.","Include output_quality, workspace, human_review_required, and evidence_url when available.","Re-resolve before broad production rollout."]},"bestFor":["research","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"knownRisks":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"],"backward_compatible":{"trust_score_v4":{"version":"trust-score-v4","score":79,"tier":"strong","label":"Strong shortlist","summary":"Good trust signals with a few areas worth checking before rollout."}}},"trust_score_v4":{"version":"trust-score-v4","score":79,"tier":"strong","label":"Strong shortlist","summary":"Good trust signals with a few areas worth checking before rollout.","recommendedAction":"Test in a sandbox workflow and compare its install path with close alternatives.","dimensions":[{"id":"github_adoption","label":"GitHub adoption","score":86,"weight":0.13,"status":"pass","detail":"2.7K GitHub stars"},{"id":"repo_activity","label":"Stars/forks activity","score":77,"weight":0.08,"status":"info","detail":"2.7K stars, 249 forks; issue activity unavailable in current metadata"},{"id":"maintenance","label":"Recent maintenance","score":100,"weight":0.14,"status":"pass","detail":"11d since push"},{"id":"license","label":"License clarity","score":86,"weight":0.09,"status":"pass","detail":"MIT"},{"id":"documentation","label":"README/SKILL.md completeness","score":86,"weight":0.14,"status":"pass","detail":"Metadata includes enough usage and workflow context"},{"id":"dependency_risk","label":"Dependency/runtime risk","score":64,"weight":0.12,"status":"info","detail":"command execution surface, network or browser surface"},{"id":"installability","label":"Install availability","score":92,"weight":0.1,"status":"pass","detail":"npx skills add addyosmani/web-quality-skills --skill seo"},{"id":"install_safety","label":"Install command safety","score":92,"weight":0.1,"status":"pass","detail":"standard package or runtime install path"},{"id":"permission_surface","label":"Permission surface","score":36,"weight":0.07,"status":"fail","detail":"shell or command execution, filesystem or document access"},{"id":"repository","label":"Repository evidence","score":86,"weight":0.04,"status":"pass","detail":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo"},{"id":"review_status","label":"Review status","score":88,"weight":0.05,"status":"pass","detail":"AI review data available"},{"id":"agent_outcomes","label":"Agent Proven outcomes","score":54,"weight":0.13,"status":"info","detail":"No agent outcome data yet"}],"checks":[{"status":"pass","label":"GitHub adoption","detail":"2.7K GitHub stars"},{"status":"info","label":"Stars/forks activity","detail":"2.7K stars, 249 forks; issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"11d since push"},{"status":"pass","label":"License clarity","detail":"MIT"},{"status":"pass","label":"README/SKILL.md completeness","detail":"Metadata includes enough usage and workflow context"},{"status":"info","label":"Dependency/runtime risk","detail":"command execution surface, network or browser surface"},{"status":"pass","label":"Install availability","detail":"npx skills add addyosmani/web-quality-skills --skill seo"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"fail","label":"Permission surface","detail":"shell or command execution, filesystem or document access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo"},{"status":"pass","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"info","label":"OpenAgentSkill usage","detail":"No local usage activity yet"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Meaningful GitHub adoption signal","Install command has no obvious high-risk pattern"],"warnings":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"],"evidence":{"stars":"2.7K GitHub stars","repoActivity":"2.7K stars, 249 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","install":"npx skills add addyosmani/web-quality-skills --skill seo","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"installReadiness":{"ready":true,"command":"npx skills add addyosmani/web-quality-skills --skill seo","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","11d since push","Financial domain: human review is required before use in a live investment workflow."]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Human review or sandbox validation is required before automatic installation."},"bestFor":["research","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"knownRisks":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"outcome_stats":null,"safety":{"score":48,"level":"avoid_auto_install","label":"Avoid automatic install","safety_tier":{"tier":"experimental","label":"Experimental","badge":"EXPERIMENTAL","summary":"Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","auto_install_policy":"review","reasons":["High-risk permission hints: Shell or command execution","48/100 agent safety score"]},"auto_install_allowed":false,"human_review_required":true,"blocked":false,"audit_risk":"needs_review","permission_hints":[{"id":"shell","label":"Shell or command execution","reason":"Skill metadata references terminal, CLI, shell, subprocess, or command execution workflows.","severity":"high"},{"id":"browser","label":"Browser automation","reason":"Skill may drive a browser or interact with web pages.","severity":"medium"},{"id":"network","label":"Network access","reason":"Skill likely fetches remote pages, APIs, repositories, or external services.","severity":"medium"},{"id":"filesystem","label":"Filesystem access","reason":"Skill may read or write project files, documents, generated artifacts, or local workspace state.","severity":"medium"},{"id":"database","label":"Database access","reason":"Skill may inspect schemas, query databases, or work with persistent stores.","severity":"medium"}],"policy_warnings":["High-risk permission hints: Shell or command execution","Permission surface may require sandboxing"],"constraints_applied":{"max_risk":"medium","needs_install_command":true,"min_stars":0}},"safety_gate":{"tier":"experimental","label":"Experimental","badge":"EXPERIMENTAL","auto_install_policy":"review","auto_install_allowed":false,"blocked":false,"human_review_required":true,"recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","reasons":["High-risk permission hints: Shell or command execution","48/100 agent safety score"]},"eval":{"version":"openagentskill-skill-eval-v1","status":"failed","score":74,"risk_level":"high","decision":{"recommendation":"do_not_auto_install","reason":"Permission surface: shell or command execution, filesystem or document access","auto_install_allowed":false,"policy":"block","human_review_required":true},"blockers":["Permission surface: shell or command execution, filesystem or document access"],"warnings":["Trust score: Good trust signals with a few areas worth checking before rollout.","Audit score: Needs review","Agent safety gate: Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","High-risk permission hints: Shell or command execution","Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"],"validation_plan":["Inspect repository, README/SKILL.md, license, and recent commits before production use.","Install in an isolated workspace or sandbox with no production secrets available.","Run the smallest representative task and record files touched, commands run, network access, and outputs.","Compare the selected skill against at least one alternative when the eval status is review or failed.","Promote only after the agent reports a successful verification result and unresolved warnings are accepted."],"checks":[{"id":"task_fit","label":"Task fit","status":"pass","score":84,"required_for_auto_install":true,"detail":"Task wording matches this skill metadata.","evidence":["Evaluate seo before installing it in an agent workflow","research","RAG and knowledge workflows; Claude Code teams; teams that value GitHub adoption signals"]},{"id":"install_path","label":"Install path","status":"pass","score":92,"required_for_auto_install":true,"detail":"Install handoff is available.","evidence":["npx skills add addyosmani/web-quality-skills --skill seo"]},{"id":"install_safety","label":"Install command safety","status":"pass","score":92,"required_for_auto_install":true,"detail":"standard package or runtime install path","evidence":["npx skills add addyosmani/web-quality-skills --skill seo"]},{"id":"trust_score","label":"Trust score","status":"warn","score":79,"required_for_auto_install":true,"detail":"Good trust signals with a few areas worth checking before rollout.","evidence":["Strong shortlist","2.7K GitHub stars","MIT"]},{"id":"audit_score","label":"Audit score","status":"warn","score":84,"required_for_auto_install":true,"detail":"Needs review","evidence":["Permission surface may require sandboxing"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":48,"required_for_auto_install":true,"detail":"Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","evidence":["Test manually in an isolated workspace and compare against safer alternatives.","High-risk permission hints: Shell or command execution"]},{"id":"readme_skillmd_completeness","label":"README/SKILL.md completeness","status":"pass","score":86,"required_for_auto_install":false,"detail":"Metadata includes enough usage and workflow context","evidence":["Strong README/SKILL.md context"]},{"id":"license_clarity","label":"License clarity","status":"pass","score":86,"required_for_auto_install":true,"detail":"MIT","evidence":["MIT"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"pass","score":100,"required_for_auto_install":false,"detail":"11d since push","evidence":["11d since push"]},{"id":"permission_surface","label":"Permission surface","status":"fail","score":36,"required_for_auto_install":true,"detail":"shell or command execution, filesystem or document access","evidence":["Shell or command execution: high","Browser automation: medium","Network access: medium"]},{"id":"alternatives","label":"Alternatives available","status":"info","score":55,"required_for_auto_install":false,"detail":"No close alternatives were found in the current shortlist.","evidence":[]}],"endpoints":{"web":"https://www.openagentskill.com/skills/addyosmani-seo/evals","api":"/api/agent/evals?slug=addyosmani-seo","text":"/api/agent/evals?slug=addyosmani-seo&format=text"}},"agent_readable_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"addyosmani-seo","name":"seo","description":"Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\".","category":"research","url":"https://www.openagentskill.com/skills/addyosmani-seo","repository":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","github_repo":"addyosmani/web-quality-skills"},"suited_tasks":["RAG and knowledge workflows","Claude Code teams","teams that value GitHub adoption signals","Chunk documents","Create embeddings","Retrieve and cite relevant passages","Inspect source files","Explain architecture"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","OpenAI Agents","CLI"],"install":{"command":"npx skills add addyosmani/web-quality-skills --skill seo","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add addyosmani-seo"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"seo\" agent skill from https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\". After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"addyosmani-seo\",\"task\":\"Install seo\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"seo\" as a Claude Code skill from https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\". After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"addyosmani-seo\",\"task\":\"Install seo\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"seo\" from https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\". After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"addyosmani-seo\",\"task\":\"Install seo\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/addyosmani-seo/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/addyosmani-seo"},"trust":{"score":79,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"2.7K GitHub stars","repoActivity":"2.7K stars, 249 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","install":"npx skills add addyosmani/web-quality-skills --skill seo","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["research","agent-skill"],"known_risks":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":84,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"]},"safety_gate":{"tier":"experimental","label":"Experimental","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Test manually in an isolated workspace and compare against safer alternatives."},"quality":{"score":81,"label":"Strong"},"supply":{"track":"Research and knowledge work","scenario":"RAG and knowledge","maintenance":"11d since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No OpenAgentSkill engagement data yet","High-risk permission hints: Shell or command execution","Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"],"agent_contract":{"task_input":"Use seo in an agent workflow","recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","install_policy":"review","minimum_review_before_use":["Trust: 79/100 Strong shortlist","Audit: 84/100 Needs review","Safety: 48/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"addyosmani-seo (seo)","install_command":"npx skills add addyosmani/web-quality-skills --skill seo","risk_summary":"Needs review; Experimental; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"addyosmani-seo","task":"Use seo in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/addyosmani-seo","api":"https://www.openagentskill.com/api/agent/skills/addyosmani-seo","audit":"https://www.openagentskill.com/skills/addyosmani-seo/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=addyosmani-seo&task=Use%20seo%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20seo%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20seo%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/addyosmani-seo/install","manifest":"https://www.openagentskill.com/api/registry/manifest/addyosmani-seo"}},"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"addyosmani-seo","name":"seo","description":"Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\".","category":"research","url":"https://www.openagentskill.com/skills/addyosmani-seo","repository":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","github_repo":"addyosmani/web-quality-skills"},"suited_tasks":["RAG and knowledge workflows","Claude Code teams","teams that value GitHub adoption signals","Chunk documents","Create embeddings","Retrieve and cite relevant passages","Inspect source files","Explain architecture"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","OpenAI Agents","CLI"],"install":{"command":"npx skills add addyosmani/web-quality-skills --skill seo","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add addyosmani-seo"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"seo\" agent skill from https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\". After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"addyosmani-seo\",\"task\":\"Install seo\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"seo\" as a Claude Code skill from https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\". After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"addyosmani-seo\",\"task\":\"Install seo\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"seo\" from https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\". After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"addyosmani-seo\",\"task\":\"Install seo\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/addyosmani-seo/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/addyosmani-seo"},"trust":{"score":79,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"2.7K GitHub stars","repoActivity":"2.7K stars, 249 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","install":"npx skills add addyosmani/web-quality-skills --skill seo","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["research","agent-skill"],"known_risks":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":84,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"]},"safety_gate":{"tier":"experimental","label":"Experimental","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Test manually in an isolated workspace and compare against safer alternatives."},"quality":{"score":81,"label":"Strong"},"supply":{"track":"Research and knowledge work","scenario":"RAG and knowledge","maintenance":"11d since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No OpenAgentSkill engagement data yet","High-risk permission hints: Shell or command execution","Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"],"agent_contract":{"task_input":"Use seo in an agent workflow","recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","install_policy":"review","minimum_review_before_use":["Trust: 79/100 Strong shortlist","Audit: 84/100 Needs review","Safety: 48/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"addyosmani-seo (seo)","install_command":"npx skills add addyosmani/web-quality-skills --skill seo","risk_summary":"Needs review; Experimental; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"addyosmani-seo","task":"Use seo in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/addyosmani-seo","api":"https://www.openagentskill.com/api/agent/skills/addyosmani-seo","audit":"https://www.openagentskill.com/skills/addyosmani-seo/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=addyosmani-seo&task=Use%20seo%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20seo%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20seo%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/addyosmani-seo/install","manifest":"https://www.openagentskill.com/api/registry/manifest/addyosmani-seo"}},"supply_profile":{"track":{"slug":"research","label":"Research and knowledge work","shortLabel":"Research","description":"Deep research, source comparison, literature review, RAG, knowledge search, and reports."},"scenario":{"label":"RAG and knowledge","description":"I need my agent to build a RAG workflow over documents and retrieve reliable context.","useCases":[{"slug":"rag-knowledge","title":"RAG and knowledge"},{"slug":"coding-agents","title":"Coding agents"},{"slug":"research-agents","title":"Research agents"}]},"applicableAgents":["Claude Code","OpenAI Agents","CLI","Codex","Cursor"],"install":{"ready":true,"command":"npx skills add addyosmani/web-quality-skills --skill seo","primaryTarget":"CLI","targetCount":4},"githubQuality":{"stars":2732,"starsLabel":"2.7K","forks":249,"license":"MIT","qualityScore":81,"trustScore":79,"auditScore":84},"maintenance":{"status":"fresh","label":"11d since push","daysSincePush":11,"lastPushedAt":"2026-08-24T21:07:36+00:00"},"risk":{"level":"needs_review","label":"Needs review","requiresReview":true,"notes":["Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access"]},"coverageTags":["Research","RAG and knowledge","agent-skill"]},"audit":{"audit_score":84,"risk_level":"needs_review","risk_label":"Needs review","quality_score":81,"trust_score":79,"maintenance_score":100,"security_score":80,"install_score":92,"warnings":["Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Permission surface: shell or command execution, filesystem or document access"]},"quality_signals":{"model":"v2","star_score":24.06,"usage_score":0,"review_score":5.1,"metadata_score":3,"freshness_score":15},"platforms":["Claude Code","OpenAI Agents"],"use_cases":[{"slug":"rag-knowledge","title":"RAG and knowledge","url":"https://www.openagentskill.com/use-cases/rag-knowledge"},{"slug":"coding-agents","title":"Coding agents","url":"https://www.openagentskill.com/use-cases/coding-agents"},{"slug":"research-agents","title":"Research agents","url":"https://www.openagentskill.com/use-cases/research-agents"},{"slug":"github-automation","title":"GitHub automation","url":"https://www.openagentskill.com/use-cases/github-automation"}],"stacks":[{"slug":"rag-knowledge-base","title":"RAG knowledge base","url":"https://www.openagentskill.com/collections/rag-knowledge-base"},{"slug":"research-report-agent","title":"Research report agent","url":"https://www.openagentskill.com/collections/research-report-agent"},{"slug":"content-growth-agent","title":"Content growth agent","url":"https://www.openagentskill.com/collections/content-growth-agent"}],"install":"npx skills add addyosmani/web-quality-skills --skill seo","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add addyosmani-seo","description":"Resolve policy, run the source installer safely, and report a verified install receipt.","copyLabel":"Copy command"},{"id":"codex","label":"Codex","title":"Codex install prompt","kind":"agent-prompt","value":"Install the \"seo\" agent skill from https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\". After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"addyosmani-seo\",\"task\":\"Install seo\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Give Codex a repo-aware install prompt when the skill is not available through a local CLI.","copyLabel":"Copy prompt"},{"id":"claude-code","label":"Claude Code","title":"Claude Code skill prompt","kind":"agent-prompt","value":"Add \"seo\" as a Claude Code skill from https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\". After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"addyosmani-seo\",\"task\":\"Install seo\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this prompt to ask Claude Code to add the skill and explain the local activation steps.","copyLabel":"Copy prompt"},{"id":"cursor","label":"Cursor","title":"Cursor rule prompt","kind":"agent-prompt","value":"Turn \"seo\" from https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Optimize for search engine visibility and ranking. Use when asked to \"improve SEO\", \"optimize for search\", \"fix meta tags\", \"add structured data\", \"sitemap optimization\", or \"search engine optimization\". After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"addyosmani-seo\",\"task\":\"Install seo\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this when installing as Cursor project rules or reusable agent instructions.","copyLabel":"Copy prompt"}],"repository":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","github_repo":"addyosmani/web-quality-skills","version":"1.0.0","license":"MIT","urls":{"web":"https://www.openagentskill.com/skills/addyosmani-seo","repository":"https://github.com/addyosmani/web-quality-skills/tree/main/skills/seo","api":"/api/agent/skills/addyosmani-seo","install_api":"/api/skills/addyosmani-seo/install"},"meta":{"created_at":"2026-09-02T01:02:26.714363+00:00","updated_at":"2026-09-02T01:02:26.787953+00:00","agent_friendly":true}}