Google SEO APIs
AgriciDaniel/claude-seo
Pulls real Google data for SEO work: Search Console, PageSpeed Insights, CrUX field data, the Indexing API and GA4 organic traffic, through /seo google commands.
A skill your agent uses when applies to any site with a manually or programmatically generated XML sitemap.
Install Sitemap Valid
$ npx skills add thedaviddias/Front-End-Checklist --skill sitemap-valid -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install thedaviddias/Front-End-Checklist sitemap-valid --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sitemap-valid .claude/skills/sitemap-valid && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "sitemap-valid" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/sitemap-valid into .claude/skills/sitemap-valid/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sitemap-valid", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/sitemap-validType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add thedaviddias/Front-End-Checklist --skill sitemap-valid -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install thedaviddias/Front-End-Checklist sitemap-valid --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/sitemap-valid .agents/skills/sitemap-valid && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "sitemap-valid" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/sitemap-valid into .agents/skills/sitemap-valid/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sitemap-valid", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add thedaviddias/Front-End-Checklist --skill sitemap-valid -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install thedaviddias/Front-End-Checklist sitemap-valid --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/sitemap-valid .cursor/skills/sitemap-valid && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "sitemap-valid" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/sitemap-valid into .cursor/skills/sitemap-valid/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sitemap-valid", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/thedaviddias/Front-End-Checklist.git --path skills/sitemap-valid--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add thedaviddias/Front-End-Checklist --skill sitemap-valid -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install thedaviddias/Front-End-Checklist sitemap-valid --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/sitemap-valid .gemini/skills/sitemap-valid && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "sitemap-valid" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/sitemap-valid into .gemini/skills/sitemap-valid/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sitemap-valid", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install thedaviddias/Front-End-Checklist sitemap-validInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add thedaviddias/Front-End-Checklist --skill sitemap-valid -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/sitemap-valid .github/skills/sitemap-valid && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "sitemap-valid" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/sitemap-valid into .github/skills/sitemap-valid/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sitemap-valid", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add thedaviddias/Front-End-Checklist --skill sitemap-valid -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install thedaviddias/Front-End-Checklist sitemap-valid --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/sitemap-valid .opencode/skills/sitemap-valid && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "sitemap-valid" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/sitemap-valid into .opencode/skills/sitemap-valid/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sitemap-valid", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
sitemap-valid- GitHub stars
- 74k
- Token cost
- ~527 tokens
- SKILL.md length
- 228 words
- Files
- 2 (incl. references)
- Skills in repo
- 390
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when applies to any site with a manually or programmatically generated XML sitemap.
- Applies to any site with a manually
- SKILL.md covers Quick Reference, Check, Fix and Explain, plus 1 more section
- Reaches sitemaps.org
- Programmatically generated XML sitemap
What it does
Sitemap Valid is an agent skill from thedaviddias/Front-End-Checklist. Use when applies to any site with a manually or programmatically generated XML sitemap. Use when debugging sitemap submission errors in Google Search Console.
Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/rule.md`).
It sits in Marketing & SEO, covering Technical SEO. It works with Google Search Console. The repository describes itself as: 🗂 The essential checklist for modern web development, for humans and AI agents. The licence is MIT.
When your agent uses it
- Applies to any site with a manually
- Programmatically generated XML sitemap
- Debugging sitemap submission errors in Google Search Console
Example prompts
- “/sitemap-valid”
What it can do on your machine
Read from SKILL.md and the folder at commit e8d14d0. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
sitemaps.org
Also links to:
frontendchecklist.io
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Sitemap Valid loads about 527 tokens when it runs, and up to ~1.4k if it reads all its reference files. Until then it costs about 43 tokens; SKILL.md has 228 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from thedaviddias/Front-End-Checklist at commit e8d14d0, republished under its MIT licence (© thedaviddias). 228 words, ~527 tokens.
Download SKILL.mdSave it as
.claude/skills/sitemap-valid/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- sitemap-valid
- description
- Use when applies to any site with a manually or programmatically generated XML sitemap. Use when debugging sitemap submission errors in Google Search Console.
- metadata.category
- seo
- metadata.priority
- high
- metadata.difficulty
- beginner
- metadata.estimatedTime
- 10
- metadata.source
- frontendchecklist.io
- metadata.url
- https://frontendchecklist.io/rules/seo/sitemap-valid
Keep XML sitemaps valid
An invalid or malformed sitemap is silently ignored by search engines, leaving newly published or orphaned pages undiscovered by crawlers.
Quick Reference
- The root element must be
<urlset>with the correctxmlnsnamespace - Each
<url>must contain exactly one<loc>element with a fully qualified, percent-encoded URL - Maximum 50,000 URLs and 50 MB per sitemap file; use a sitemap index for larger sites
- Encode XML special characters:
&→&,<→<,>→>,"→",'→'
Check
Fetch the sitemap and validate it against the sitemaps.org schema. Check that the xmlns attribute is http://www.sitemaps.org/schemas/sitemap/0.9, all <loc> values are absolute URLs, no file exceeds 50,000 URLs or 50 MB, and special characters are properly XML-encoded.
Fix
Re-generate the sitemap using a validated sitemap library. Encode all special characters in URLs (& → &). Split oversized sitemaps into multiple files and reference them from a sitemap index. Resubmit to Google Search Console.
Explain
Explain the sitemaps.org XML schema requirements, what causes validation errors in Google Search Console, and how encoding errors in <loc> URLs prevent crawlers from fetching those pages.
Code Review
Review metadata generation, rendered HTML, structured data, and response headers related to Keep XML sitemaps valid. Flag exact routes or templates where search-facing output violates the rule, and describe how to verify the final page output.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/seo/sitemap-valid
© thedaviddias, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in skills/sitemap-valid of thedaviddias/Front-End-Checklist.
- SKILL.md
- references/rule.md
Open the folder on GitHubat commit e8d14d0
Compare with similar skills
Sitemap Valid next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Sitemap Valid this skillthedaviddias/Front-End-Checklist | 74k | — | ~527 | Automated safety check: Pass | MIT | |
| Google SEO APIsAgriciDaniel/claude-seo | 19k | 1 repos | ~4.2k | Automated safety check: Pass | MIT | |
| SEO Coachakseolabs-seo/seo-coach | 146 | — | ~2.8k | Automated safety check: Pass | None | |
| SEO Setupalisamadiii/Portfolio | 180 | — | ~1.7k | Automated safety check: Pass | None | |
| Google Search SEO Guidelittleben/awesomeAgentskills | 188 | 2 repos | ~4.2k | Automated safety check: Pass | MIT | |
| SEO Googleseranking/seo-skills | 160 | — | ~4.8k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Sitemap Valid
What does Sitemap Valid do?
A skill your agent uses when applies to any site with a manually or programmatically generated XML sitemap. Sitemap Valid is an agent skill from thedaviddias/Front-End-Checklist. Use when applies to any site with a manually or programmatically generated XML sitemap.
When should I use Sitemap Valid?
Sitemap Valid fits situations like: applies to any site with a manually; programmatically generated XML sitemap; debugging sitemap submission errors in Google Search Console.
How do I install Sitemap Valid in Claude Code?
Run `npx skills add thedaviddias/Front-End-Checklist --skill sitemap-valid -a claude-code`. Or copy the skill folder (skills/sitemap-valid in thedaviddias/Front-End-Checklist) into .claude/skills/sitemap-valid in your project. Claude Code loads it when a task matches its description.
How do I install Sitemap Valid in Codex?
Run `npx skills add thedaviddias/Front-End-Checklist --skill sitemap-valid -a codex`. Or copy the skill folder (skills/sitemap-valid in thedaviddias/Front-End-Checklist) into .agents/skills/sitemap-valid in your project. Codex loads it when a task matches its description.
Can I use Sitemap Valid in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add thedaviddias/Front-End-Checklist --skill sitemap-valid -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sitemap-valid, .gemini/skills/sitemap-valid, .github/skills/sitemap-valid and .opencode/skills/sitemap-valid in your project.
What does Sitemap Valid need to run?
SKILL.md names no scripts, command-line tools or credentials: Sitemap Valid is instructions for the agent only.
Does Sitemap Valid access the network?
SKILL.md names 2 domains. In commands or code: sitemaps.org; the agent is likely to contact it when it follows the instructions. As links in the text: frontendchecklist.io. This is read from the text; nothing was executed.
Is Sitemap Valid safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Sitemap Valid use?
Sitemap Valid is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Sitemap Valid use?
About 527 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 859 tokens, read only when the agent opens those files.
What are the alternatives to Sitemap Valid?
Skills that share tags, products or a category with Sitemap Valid: Google SEO APIs (AgriciDaniel/claude-seo, 19k stars), SEO Coach (akseolabs-seo/seo-coach, 146 stars), SEO Setup (alisamadiii/Portfolio, 180 stars) and Google Search SEO Guide (littleben/awesomeAgentskills, 188 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Sitemap Valid?
thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,412 GitHub stars. The repository holds 390 skills in this directory. The repository was last updated on October 6, 2026.
Source: thedaviddias/Front-End-Checklist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.