# Seo Sitemap > Audits and generates sitemaps.org-compliant XML sitemaps. Validates structure (well-formed XML, the 50,000-URL / 50 MB limits, absolute URLs) and flags sampled URLs that 404, are noindexed, or canonicalize elsewhere; splits into a sitemap index automatically past 50,000 URLs. Trigger when the user says "sitemap", "XML sitemap", "generate sitemap", "validate sitemap", "sitemap issues", or "sitemap… - **Type:** Skill - **Install:** `agentstack add skill-zacharticulatev-designer-pro-and-seo-seo-sitemap` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [ZachArticulateV](https://agentstack.voostack.com/s/zacharticulatev) - **Installs:** 0 - **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills) - **Latest version:** 0.1.0 - **License:** MIT - **Upstream author:** [ZachArticulateV](https://github.com/ZachArticulateV) - **Source:** https://github.com/ZachArticulateV/designer-pro-and-seo/tree/main/skills/seo-sitemap ## Install ```sh agentstack add skill-zacharticulatev-designer-pro-and-seo-seo-sitemap ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About # seo-sitemap **Family:** seo **Status:** Stable ## Purpose Audit and generation for XML sitemaps. The script handles structure deterministically (well-formed XML, the 50,000-URL / 50 MB protocol limits, automatic sitemap-index splitting, absolute-URL checks); the skill layers the live quality gates that catch the most common silent issues: URLs that 404, are noindexed, or canonicalize elsewhere should never be in a sitemap. ## Triggers - "sitemap" / "xml sitemap" - "generate sitemap" / "sitemap index" - "sitemap issues" ## Inputs - A sitemap file/URL (audit), or a list of URLs (generate) - Optional: base URL (for index child links) and a lastmod date ## Steps 1. **Validate structure:** ``` python3 "${CLAUDE_PLUGIN_ROOT}/scripts/seo/sitemap_tools.py" --validate sitemap.xml ``` Checks well-formedness, root type (urlset vs sitemapindex), URL count vs the 50,000 limit, file size vs 50 MB, and that every `` is absolute http(s). 2. **Apply the live quality gates** (the high-value part): for a sample of the sitemap's URLs, confirm via `seo-page`/fetch that each returns 200, is **not** noindexed, and does **not** canonicalize to a different URL. Flag any that fail — these silently waste crawl budget. 3. **Generate** a fresh sitemap from a URL list when needed: ``` python3 "${CLAUDE_PLUGIN_ROOT}/scripts/seo/sitemap_tools.py" --generate --urls urls.txt --out sitemap.xml \ --base-url https://site.com --lastmod 2026-06-01 ``` It splits into a sitemap index automatically past 50,000 URLs. 4. **Lastmod discipline:** set `lastmod` from real content-change dates, not auto-bumped to today on every regen (Google learns to distrust it otherwise). 5. **Robots:** confirm `robots.txt` has a `Sitemap:` directive pointing to it. ## Capability routing This skill follows the plugin's capability-tier cascade (`references/CAPABILITY-TIERS.md`) and always produces a validated sitemap: 1. **Tier 1 — Firecrawl MCP.** When connected, crawl the live site to discover the true URL set (including JS-only pages) before validating or generating. 2. **Tier 2 — built-in (the default).** Otherwise `sitemap_tools.py` validates structure deterministically and generates a sitemaps.org-compliant file from a URL list, with `site_map.py` supplying the robots + sitemap-recursion inventory. Fully offline — this is the product. 3. **Tier 4 — guided.** If the URL set must come from a JS-rendered crawl and Firecrawl isn't connected, deliver the structural validation + generation and name what a full crawl would add. ```capability-routing capability: site-map tier1: Firecrawl MCP tier1_signal: FIRECRAWL_API_KEY | FIRECRAWL_API_URL tier2: sitemap_tools.py (validate + generate, sitemaps.org limits) + site_map.py (robots + sitemap recursion -> URL inventory) tier2_yields: validated sitemaps.org-compliant sitemap + 404/noindex/canonical offender list, zero spend tier3: none tier3_signal: none tier4: paste the sitemap or URL list; add a Firecrawl MCP to discover JS-only URLs for a full inventory needs_tier1: none ``` Always end by stating which tier ran and what a full crawl would add. ## Outputs - Structure validation report - Quality-gate results (404 / noindex / canonical-elsewhere offenders) - Generated sitemap(s) + index for large sites ## Dependencies - `scripts/seo/sitemap_tools.py` (required) — Python 3.10+, standard library only - `seo-page` (optional — for the per-URL live quality gates) ## Notes The "no noindex, no canonical-elsewhere" gates catch the most common silent sitemap issue. Structure is validated offline; the live gates need URL fetches. ## Source & license This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [ZachArticulateV](https://github.com/ZachArticulateV) - **Source:** [ZachArticulateV/designer-pro-and-seo](https://github.com/ZachArticulateV/designer-pro-and-seo) - **License:** MIT Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** no - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** no - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/skill-zacharticulatev-designer-pro-and-seo-seo-sitemap - Seller: https://agentstack.voostack.com/s/zacharticulatev - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. 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