blog-audit

blog-audit is a skill for Claude Code from Infrasity-Labs/dev-gtm-claude-skills. It costs 83 tokens per session (1,768 once invoked), scanned A, original, MIT.

A tool that reviews every blog file in a project for content quality, missing pages, overlapping topics, outdated material, and readiness for AI citations. It gives each post a score and a ranked list of work to do.

In plain words
What is it for?
Use it to assess a blog’s health, find orphaned posts, detect competing topics, identify stale content, and plan improvements.
Why use it?
It helps find weaknesses across a whole blog instead of checking posts one by one. It also shows which fixes should come first.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions subagents.

Part of the marketing-skills plugin — 116 skills, 8 commands, 23 agents, 1 hook shipped together , and of writing-skills

Good fit Use it to assess a blog’s health, find orphaned posts, detect competing topics, identify stale content, and plan improvements.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/infrasity-labs/dev-gtm-claude-skills/blog-audit
Install

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.

Any agent
npx skills add Infrasity-Labs/dev-gtm-claude-skills --skill blog-audit
Clone the repo
git clone --depth 1 https://github.com/Infrasity-Labs/dev-gtm-claude-skills

Made for: Claude Code.

Or install marketing-skills, the plugin that ships this one along with the rest of its 116 skills, 8 commands, 23 agents, 1 hook.

Wrote 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.

agentmods badge for blog-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/infrasity-labs/dev-gtm-claude-skills/blog-audit/github.svg)](https://agentmods.dev/skills/infrasity-labs/dev-gtm-claude-skills/blog-audit)
Your own site
<a href="https://agentmods.dev/skills/infrasity-labs/dev-gtm-claude-skills/blog-audit"><img src="https://agentmods.dev/badge/skills/infrasity-labs/dev-gtm-claude-skills/blog-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.

agentmods 80×15 button for blog-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/infrasity-labs/dev-gtm-claude-skills/blog-audit"><img src="https://agentmods.dev/badge/skills/infrasity-labs/dev-gtm-claude-skills/blog-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,768 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00083 $0.01768
Opus 5 $0.00042 $0.00884
Sonnet 5 $0.00017 $0.00354
Haiku 4.5 $0.00008 $0.00177

Measured 9d ago against content hash 47cdf2f0ea11, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

blog-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.

.claude/skills/blog-audit/SKILL.md · 214 lines

How it starts

The opening of the file, as written. The whole thing — 214 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blog Audit: Full-Site Health Assessment

Performs a comprehensive blog health assessment across all posts in the project. Scans for quality scores, orphan pages, topic cannibalization, stale content, and AI citation readiness. Uses parallel subagents for efficient analysis and produces a prioritized action queue.

Audit Process

Step 1: Discover Blog Files

Scan the project for all blog content files:

  • Glob for *.md, *.mdx, *.html in common blog directories
  • Common paths to check:
    • content/
    • posts/
    • blog/
    • src/content/
    • _posts/
    • pages/blog/
    • articles/
    • src/pages/blog/
  • Filter out non-blog files: README, CHANGELOG, LICENSE, config files, SKILL.md, package.json, node_modules
  • Report: "Found N blog files in [directories]"

If no blog files are found in standard locations, search the entire project root for markdown files with blog-like frontmatter (title, date, description).

Step 2: Parallel Analysis

Spawn subagents via the Task tool for parallel processing across all discovered blog files:

Content Quality Agent
  • Score each post on the 30-point content quality scale
  • Check paragraph length (target 40-80 words, hard limit 150)
  • Check sentence length (target 15-20 words)
  • Evaluate heading structure and question-format headings
  • Assess readability (Flesch Reading Ease 60-70 target)
SEO Optimization Agent
  • Check on-page SEO elements per post:
    • Title tag length (50-60 chars)
    • Meta description (150-160 chars, includes statistic)
    • H1 presence and uniqueness
    • Image alt text coverage
    • Internal and external link counts
    • URL slug quality
Schema Validation Agent
  • Detect structured data across all posts
  • Validate BlogPosting schema completeness
  • Check FAQ schema presence and format
  • Verify dateModified matches lastUpdated frontmatter
  • Flag missing or malformed schema
Link Health Agent
  • Map internal links across all posts
  • Build a directed link graph
  • Detect orphan pages (zero inbound internal links)
  • Detect dead-end pages (zero outbound internal links)
  • Check for broken internal link targets
  • Recommend bidirectional link opportunities

Read the full file on GitHub · 214 lines

Changes

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.

  1. 9d ago First seen · 214 lines · 83 tokens per session scan A 47cdf2f0ea11

Subscribe to this mod's changes

blog-audit is a skill published in the GitHub repository Infrasity-Labs/dev-gtm-claude-skills (124 stars, last pushed 2mo ago), licensed MIT. It adds 83 tokens to every session and 1,768 once invoked, about $0.0004 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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