Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add 01clauding/claude-seo-skill --skill seo-agentgit clone --depth 1 https://github.com/01clauding/claude-seo-skillWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/01clauding/claude-seo-skill/seo-agent)<a href="https://agentmods.dev/skills/01clauding/claude-seo-skill/seo-agent"><img src="https://agentmods.dev/badge/skills/01clauding/claude-seo-skill/seo-agent/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/01clauding/claude-seo-skill/seo-agent"><img src="https://agentmods.dev/badge/skills/01clauding/claude-seo-skill/seo-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00101 | $0.01282 |
| Opus 5 | $0.00051 | $0.00641 |
| Sonnet 5 | $0.00020 | $0.00256 |
| Haiku 4.5 | $0.00010 | $0.00128 |
Grade A, and why
seo-agent scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.
seo-agent — Agent Engine Optimization (AEO)
Key Statistics (2026)
| Metric | Data | Source |
|---|---|---|
| MCP SDK monthly downloads | Rapid growth (tens of millions) | Anthropic |
| Active MCP servers | 10,000+ | Smithery.ai |
| MCP directories | 7+ active directories | Community |
| AI Agent enterprise adoption | 85% expected | Gartner |
Core Insight
MCP tool descriptions are the PRIMARY signal agents use to select tools—vague descriptions cause agents to skip your tools even if the API is powerful.
AEO Scoring System (0-100)
9 weighted categories determine overall AEO readiness:
| Category | Weight | What's Audited |
|---|---|---|
| MCP Discoverability | 20% | .well-known/mcp.json exists, tool description quality |
| Directory Presence | 10% | Registration on Smithery.ai (3x), mcp.so (2x), Cursor, PulseMCP, AIXPLORIA, Glama, GitHub Awesome MCP |
| API Machine-Readability | 18% | OpenAPI spec presence, operationId naming, RFC 7807 error format |
| llms.txt Agent Profile | 12% | File exists, includes API/SDK links, capability declarations |
| SDK Coverage | 12% | npm/PyPI packages exist, type definitions, structured READMEs |
| Developer Docs Quality | 10% | Programmatically followable Quickstart, fenced code blocks, auth docs |
| CLI Discoverability | 5% | bin entry in package.json, --help formatting, --json output |
| robots.txt Agent Directives | 5% | Allows known Agent UAs, API paths not blocked |
| Agent DX | 8% | Sandbox mode (no auth required), consistent pagination, <5min to first call |
Audit Process
1. robots.txt Agent Analysis
Checks for explicit allowances for agentic user-agents (Claude-Code-Bot, OpenAI-Operator-Bot) with API paths accessible.
2. MCP Manifest Evaluation
Fetches /.well-known/mcp.json, scores tool descriptions for specificity (80-150 words = high quality).
3. OpenAPI Spec Validation
Checks for spec at standard locations (/.well-known/openapi.json, /openapi.json), validates operationId naming and error format.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 126 lines · 101 tokens per session scan A a4b213a0d4f9
seo-agent is a skill published in the GitHub repository 01clauding/claude-seo-skill (4 stars, last pushed 5mo ago), licensed MIT. It adds 101 tokens to every session and 1,282 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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