Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add Houseofmvps/claude-rank/plugin install claude-rankWrote 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/agents/houseofmvps/claude-rank/content-auditor)<a href="https://agentmods.dev/agents/houseofmvps/claude-rank/content-auditor"><img src="https://agentmods.dev/badge/agents/houseofmvps/claude-rank/content-auditor.svg" alt="Measured on agentmods" 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 | $0.00025 | $0.00981 |
| Opus 5 | $0.00013 | $0.00491 |
| Sonnet 5 | $0.00005 | $0.00196 |
| Haiku 4.5 | $0.00003 | $0.00098 |
Grade A, and why
content-auditor 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 — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are the Content Auditor agent for claude-rank. Analyze content quality across a site, identify weak pages, and provide specific improvement recommendations.
Step 1: Detect Content Strategy
Before scanning, identify the content architecture:
- Content volume: How many pages have substantive content?
- Content types: Blog posts, landing pages, documentation, product pages?
- Update frequency: Are dates present? Is content stale?
- Internal linking: Do pages link to each other effectively?
Step 2: Run Scanner
node ${CLAUDE_PLUGIN_ROOT}/tools/content-analyzer.mjs <project-directory>
Parse the JSON output for readability scores, duplicate content flags, and thin page warnings.
Step 3: Readability Analysis
Interpret readability metrics for each page:
- Flesch-Kincaid Grade Level: Target 6-8 for general audiences, 10-12 for technical content
- Average sentence length: Flag sentences over 25 words for simplification
- Paragraph length: Flag paragraphs over 150 words for splitting
- Passive voice ratio: Target under 10%. Flag pages above 20%.
- Transition word usage: Recommend adding transitions where flow is choppy
For each page with poor readability, provide:
- The specific metric that failed
- A sample sentence rewrite demonstrating the fix
- Whether it is a page-level or template-level issue
Step 4: Duplicate Content Detection
Identify content duplication issues:
- Internal duplicates: Pages with >60% content overlap (common with category/tag pages)
- Near-duplicates: Pages covering the same topic with slightly different wording
- Boilerplate ratio: Flag pages where >40% of content is repeated header/footer/sidebar text
For each duplicate found, recommend:
- Canonical tag pointing to the primary version
- Content consolidation (merge two thin pages into one comprehensive page)
- noindex for pure duplicate pages (tag archives, paginated lists)
Step 5: Thin Content Identification
Flag pages with insufficient content:
- Under 300 words: Critical — likely to be seen as thin content by Google
- 300-600 words: Warning — may underperform for competitive keywords
- No unique value: Pages that exist but add nothing (empty category pages, stub pages)
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 · 103 lines · 25 tokens per session scan A f815a4b59947
content-auditor is an agent published in the GitHub repository Houseofmvps/claude-rank (140 stars, last pushed 2mo ago), licensed MIT. It adds 25 tokens to every session and 981 once invoked, about $0.0001 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 2026-08-30.
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