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 bestdeejay-design/agent-skills --skill seo-contentgit clone --depth 1 https://github.com/bestdeejay-design/agent-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/bestdeejay-design/agent-skills/seo-content)<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/seo-content"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/seo-content/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/bestdeejay-design/agent-skills/seo-content"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/seo-content.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 | $0.00141 | $0.00589 |
| Opus 5 | $0.00071 | $0.00295 |
| Sonnet 5 | $0.00028 | $0.00118 |
| Haiku 4.5 | $0.00014 | $0.00059 |
Grade A, and why
seo-content 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 10d 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.
What it actually says
SEO Content — on-page content & images
Use this skill for the content layer of SEO: on-page text quality, keywords, headings, and image optimization.
Commands (documented in commands/)
| Command | What it does |
|---|---|
seo-content |
Thin content, duplicates, readability (Flesch-Kincaid), E-E-A-T signals |
seo-keywords |
Keyword density, cannibalization, LSI, long-tail, intent mapping |
seo-headings |
H1–H6 hierarchy, order, keywords in headings, accessibility |
seo-images |
Alt text, WebP/AVIF, lazy loading, dimensions, srcset |
Script
python3 scripts/seo_content.py --density --file page.html --keyword "fitness"
Keyword density + top terms. Script/style content is stripped first so CSS/JS source does not inflate the word count. Pure Python stdlib; stdin supported.
When to use
- User asks for "seo content", "content audit", "keywords", "keyword research", "seo headings", "image seo", "контент аудит", "ключевые слова".
- On-page content quality, headings hierarchy or image optimization is the task.
Do NOT use
- For the full technical audit / CWV / reports / fixes — that is
seo-audit. - For schema.org / meta tags — that is
seo-schema. - For crawlability / linking structure / competitors — that is
seo-crawl.
What ships with it
7 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.
- 10d ago First seen · 46 lines · 141 tokens per session scan A 786ac51b359e
seo-content is a skill published in the GitHub repository bestdeejay-design/agent-skills (5 stars, last pushed 2d ago), licensed MIT. It adds 141 tokens to every session and 589 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 2026-08-31.
Other skills, from other repositories
workflow
Use when a task is too large for turn-by-turn orchestration and should run through the big-task workflow lane: system-wide changes, large migrations, repo-wide audits, high-confidence verification, or tasks explicitly asking to run a workflow. Claude Code uses native dynamic workflows; Codex, OpenCode, and Grok use…
skill-compiler
Automatic solved-to-skill compiler — detects novel task completions and autonomously drafts new SKILL.md files. Stolen from Hermes Agent's learning loop (NousResearch, 2026-05-11).
context-compactor
9-section context compression with analysis scratchpad. Adapted from Claude Code's /compact system (2026-03-31).
daemon-loop
Autonomous recurring agent tasks — converts workflows into persistent background daemons that run on intervals. Stolen from Boris Cherny's Claude Code /loop pattern (2026-03-31).
trade-journal-analyzer
Unified post-trade analytics: journal pattern extraction + drawdown classification. Absorbs: drawdown-classifier.
Deep Research Loop
Multi-step web research, compilation, and synthesis workflow. Scrapes multiple sources, cross-references claims, and produces a structured research brief.