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 linkfox-ai/linkfox-skills --skill linkfox-sif-keyword-overviewgit clone --depth 1 https://github.com/linkfox-ai/linkfox-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/linkfox-ai/linkfox-skills/linkfox-sif-keyword-overview)<a href="https://agentmods.dev/skills/linkfox-ai/linkfox-skills/linkfox-sif-keyword-overview"><img src="https://agentmods.dev/badge/skills/linkfox-ai/linkfox-skills/linkfox-sif-keyword-overview/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/linkfox-ai/linkfox-skills/linkfox-sif-keyword-overview"><img src="https://agentmods.dev/badge/skills/linkfox-ai/linkfox-skills/linkfox-sif-keyword-overview.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket warn
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high System Prompt Leakage · line 120 Skill contains instructions that could directly expose system prompts, internal rules, or hidden instructions to users or external parties.Fix: Remove any instructions that reveal, print, or output system prompts or internal rules. System instructions should never be exposed to end users.
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 | $0.00138 | $0.02885 |
| Opus 5 | $0.00069 | $0.01443 |
| Sonnet 5 | $0.00028 | $0.00577 |
| Haiku 4.5 | $0.00014 | $0.00288 |
Grade A, and why
linkfox-sif-keyword-overview 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 — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SIF Keyword Overview
This skill guides you on how to query and analyze keyword-level competition data on Amazon, helping sellers assess market competitiveness and supply-demand dynamics for specific keywords.
Core Concepts
The SIF Keyword Overview tool provides a comprehensive snapshot of competition metrics for a given keyword on Amazon. It returns the number of competing products across different placement types (organic, sponsored, video ads, brand ads, etc.), estimated weekly search volume, keyword popularity ranking, and the supply-demand ratio.
Supply-demand ratio: Calculated as total search result product count / monthly search volume. A lower ratio indicates less competition and greater opportunity. This is a key metric for identifying blue-ocean keywords.
Keyword popularity ranking: Represents where this keyword ranks among all keywords on the marketplace by monthly search volume. A smaller number means higher search popularity (rank 1 is the most popular). When a user says "ranking improved," it means the numeric value decreased; "ranking dropped" means the value increased.
Data Fields
| Field | API Name | Description |
|---|---|---|
| Keyword | keyword | The queried keyword text |
| Keyword Popularity Rank | keywordPopularityRank | Monthly search volume rank among all keywords (lower = more popular) |
| Estimated Weekly Search Volume | estimatedWeeklySearchVolume | Estimated weekly search count on Amazon |
| Supply-Demand Ratio | supplyDemandRatio | Product count / monthly search volume (lower = less competition) |
| Total Search Result Products | totalSearchResultProductCount | Total products shown under this keyword (organic + ads + recommendations) |
| Natural Search Products | naturalSearchProductCount | Products in organic search results (excluding ads) |
| Sponsored Products (SP) Count | sponsoredProductsCount | Products running Sponsored Products ads |
| Brand Ad Products | brandAdProductCount | Products running Brand Ads |
| Video Ad Products | videoAdProductCount | Products running Video Ads |
| Total Paid Advertising Products | paidAdvertisingProductCount | All PPC ad products combined (SP + Brand + Video, etc.) |
| Amazon's Choice Products | amazonChoiceProductCount | Products with the Amazon's Choice badge |
| Top Rated Products | topRatedProductCount | Products in the Top Rated recommendation section |
| Search Recommendation Products | searchRecommendationProductCount | Products recommended by Amazon during search |
| Editorial Recommendations Products | editorialRecommendationsProductCount | Products in Editorial Recommendations section |
| Recommendation Non-ad Products | recNonadProductCount | Products in recommendation slots classified as non-ad (organic recommendations) |
| Recommendation Ad Products | recAdProductCount | Products in recommendation slots classified as ads |
| SIF-Tracked Exposed ASINs | trackedAsinTotalCount | Deduplicated count of ASINs that SIF tracked with any exposure score (natural/ad/recommendation) — upstream field totalAsinNum |
| Total Marketplace Keywords | totalMarketplaceKeywordCount | Total number of keywords in the marketplace |
| Data Period Start Date | dataPeriodStartDate | ABA week start date for the returned data (yyyy-MM-dd) |
| Data Period End Date | dataPeriodEndDate | ABA week end date for the returned data (yyyy-MM-dd) |
| Data Update Time | keywordDataUpdateTime | Last update timestamp for this keyword's data |
What ships with it
4 files 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 · 183 lines · 138 tokens per session scan A dbbef3036758
linkfox-sif-keyword-overview is a skill published in the GitHub repository linkfox-ai/linkfox-skills (101 stars, last pushed 22d ago), licensed MIT. It adds 138 tokens to every session and 2,885 once invoked, about $0.0007 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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