seo-sxo is a skill in zhtyyx/codex-seo, last changed 27 Oct 2026. It is instructions only: no scripts, no named hosts and no pre-approved tools.

From the author
Diagnose search-experience and intent mismatches using SERP page types, user stories, and persona scoring. Use when ranking problems appear intent- or layout-driven.

At a glance

What it can touch

  • Instructions only

It is instructions only: no scripts, no named hosts and no pre-approved tools.

How much a skill can do, not whether it is risky.

Pattern check

Nothing flagged

That isn't proof the skill is harmless.

Commit f8fcfad · 3 Nov 2026

How the check works

Pattern check: nothing flagged

That isn't proof the skill is harmless.

Install

Each tab says whether it installs commit f8fcfad, the one we checked, or the latest version.

Read SKILL.md first
MIT
Licence
147
Repo stars
Publisher
Files

What it can touch

From the files and frontmatter at commit f8fcfad. This is how much a skill can do, not whether it is risky.

Instructions only

It is instructions only: no scripts, no named hosts and no pre-approved tools.

Pattern check

Pattern check: nothing flagged · commit f8fcfad · 3 Nov 2026

We checked every text file in this skill, at commit f8fcfad on 3 Nov 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.

How the check worksReport an incorrect finding

Format check

Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.

  • Agent Skills specPasses

    The open format from agentskills.io, held to the strictest version of each rule among the agents we check.

    • Note

      Reference files over 100 lines with no table of contents at the top: references/page-type-taxonomy.md (188 lines), references/persona-scoring.md (171 lines), references/user-story-framework.md (140 lines) and references/wireframe-templates.md (169 lines). B5

      Fix: Add a short list of the sections at the top of each.

  • Claude CodePasses

    Claude Code reads its own extra fields, ignores unknown ones, and still loads a skill whose frontmatter is broken, without its fields.

    • Note

      Reference files over 100 lines with no table of contents at the top: references/page-type-taxonomy.md (188 lines), references/persona-scoring.md (171 lines), references/user-story-framework.md (140 lines) and references/wireframe-templates.md (169 lines). B5

      Fix: Add a short list of the sections at the top of each.

  • Claude apps & API uploadPasses

    Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.

    • Note

      Reference files over 100 lines with no table of contents at the top: references/page-type-taxonomy.md (188 lines), references/persona-scoring.md (171 lines), references/user-story-framework.md (140 lines) and references/wireframe-templates.md (169 lines). B5

      Fix: Add a short list of the sections at the top of each.

  • OpenAI (Codex & API)Passes
  • VS Code & CopilotPasses

SKILL.md

Files

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Repo facts from GitHub on 3 Nov 2026. Files read at commit f8fcfad.

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