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 rampstackco/claude-skills --skill seo-keyword-gap-auditgit clone --depth 1 https://github.com/rampstackco/claude-skillsWrote 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/rampstackco/claude-skills/seo-keyword-gap-audit)<a href="https://agentmods.dev/skills/rampstackco/claude-skills/seo-keyword-gap-audit"><img src="https://agentmods.dev/badge/skills/rampstackco/claude-skills/seo-keyword-gap-audit/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/rampstackco/claude-skills/seo-keyword-gap-audit"><img src="https://agentmods.dev/badge/skills/rampstackco/claude-skills/seo-keyword-gap-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00110 | $0.01741 |
| Opus 5 | $0.00055 | $0.00870 |
| Sonnet 5 | $0.00022 | $0.00348 |
| Haiku 4.5 | $0.00011 | $0.00174 |
Grade A, and why
seo-keyword-gap-audit 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 9d 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 — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO Keyword Gap Audit
Find keyword opportunities by comparing the target property's organic footprint against a competitor set, using Ahrefs MCP data. Stack-agnostic. Produces a prioritized list of keywords to target with new or improved content.
When to use
- Planning content investment for the next quarter
- Identifying quick-win keywords for fast organic gains
- Scoping market entry into a new vertical
- Refreshing a stale content strategy
- Diagnosing why a competitor is gaining organic share
- Pre-acquisition due diligence on growth ceiling
When NOT to use
- Pure keyword discovery without a competitor frame (use
seo-keyword) - Single-page optimization (use
seo-onpage) - Content audit on existing pages (use
seo-content-audit) - Topic and pillar planning (use
content-strategy)
Required inputs
- Target property
- Competitor set (3-5 properties with overlapping intent and audience)
- Target market and language
- Business priorities (which segments matter most)
- Existing content inventory (URLs and primary topics)
- Confirmation Ahrefs MCP is connected
The framework: the gap matrix
A keyword can fall into one of four cells based on whether the target ranks and whether competitors rank.
| Target ranks | Target does not rank | |
|---|---|---|
| Competitors rank | Shared territory (defend and grow) | Pure gap (the opportunity) |
| Competitors do not rank | Unique territory (asset to protect) | Untouched (validate before investing) |
The audit focuses primarily on the "pure gap" cell. The other cells get secondary treatment.
Pure gap (top focus)
Keywords where one or more competitors rank in the top 10 and the target does not rank at all or ranks past page 3. These are the primary opportunities.
Shared territory
Keywords where both target and competitors rank. Useful for defending position and finding pages to push from page 2 to page 1.
Unique territory
Keywords where the target ranks and no competitor does. These are differentiators. Audit to confirm they are actually valuable (not just irrelevant terms).
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 168 lines · 110 tokens per session scan A f8437377d2a1
seo-keyword-gap-audit is a skill published in the GitHub repository rampstackco/claude-skills (848 stars, last pushed 4d ago), licensed MIT. It adds 110 tokens to every session and 1,741 once invoked, about $0.0006 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 2026-09-03.
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