seo-fixer-writer

seo-fixer-writer is an agent for Claude Code from Hainrixz/claude-seo-ai. It costs 93 tokens per session (1,517 once invoked), scanned A, original, MIT.

A read-only specialist for technical and on-page search-engine optimisation (SEO), the work of helping pages appear correctly in search results. It checks crawling, indexing, rendering, metadata, headings, social cards, images, links, mobile use, loading performance, and sitemaps.

In plain words
What is it for?
Use it to analyse a site's technical SEO and return findings without changing files.
Why use it?
It separates these website checks from structured-data and entity work handled by other agents, making audit responsibilities clear.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; mentions Claude Code.

Part of the claude-seo-ai plugin — 34 skills, 5 agents, 1 hook shipped together

Good fit Use it to analyse a site's technical SEO and return findings without changing files.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/hainrixz/claude-seo-ai/seo-fixer-writer
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.

Clone the repo
git clone --depth 1 https://github.com/Hainrixz/claude-seo-ai

Made for: Claude Code.

Or install claude-seo-ai, the plugin that ships this one along with the rest of its 34 skills, 5 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 seo-fixer-writer

README.md
[![agentmods](https://agentmods.dev/badge/agents/hainrixz/claude-seo-ai/seo-fixer-writer/github.svg)](https://agentmods.dev/agents/hainrixz/claude-seo-ai/seo-fixer-writer)
Your own site
<a href="https://agentmods.dev/agents/hainrixz/claude-seo-ai/seo-fixer-writer"><img src="https://agentmods.dev/badge/agents/hainrixz/claude-seo-ai/seo-fixer-writer/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 seo-fixer-writer

Your own site · 80×15
<a href="https://agentmods.dev/agents/hainrixz/claude-seo-ai/seo-fixer-writer"><img src="https://agentmods.dev/badge/agents/hainrixz/claude-seo-ai/seo-fixer-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 93 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,517 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00093 $0.01517
Opus 5 $0.00046 $0.00758
Sonnet 5 $0.00019 $0.00303
Haiku 4.5 $0.00009 $0.00152

Measured 3d ago against content hash 9d5e4b421238, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

seo-fixer-writer scanned grade A with 1 finding 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 3d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Never emulate an adapter with ad-hoc `curl`, `wp` or `shopify` commands — `guard-bash` blocks
agents/seo-fixer-writer.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

seo-fixer-writer

You are the single write-capable agent in claude-seo-ai. You apply confirmed changes exactly as they were previewed — nothing more, nothing less. You run only after the user has explicitly confirmed those changes in /claude-seo-ai:fix. You never originate a fix and you never widen one. The fix command is disable-model-invocation and can never be triggered or preloaded by a model: the approved work reaches you in your envelope, not by calling fix.

Envelope

  • RUN_DIR — absolute fix-run directory <DATA>/fix/runs/<id>/ holding plan.json, manifest.json (with confirmed[]), preview/, before/, after/, log.ndjson.
  • SCRIPTS_DIR — absolute <plugin_root>/scripts/. Run scripts as node "<SCRIPTS_DIR>/<x>.mjs" … with the literal path; never a ${...} token, never a relative path.
  • DATA — absolute plugin data root. Backups go to <DATA>/backups/<run-id>/, never into the user's project.
  • PROJECT_ROOT — the user's project (local targets only). Every Edit/Write stays inside it.
  • confirmed_change_ids[] — the ONLY change ids you may apply. Anything else in plan.json keeps its pre-fix status with skipped_unconfirmed in evidence.observed (the schema has no skipped status).
  • tickets — one ticket per confirmed change: one-shot, 15 minutes, issued after the user's confirmation. Adapter apply/publish/rollback will not run without the right one.
  • publishfalse by default. true only after a second confirmation, and it carries its own publish ticket. Publishing without both is forbidden.
  • force — allows writing into a dirty git tree. langen|es for rendered instructions.
  • return — "JSON array of findings only".

Read the full file on GitHub · 85 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. 3d ago Changed · +3 lines · +19 tokens per session 9d5e4b421238
  2. 5d ago Changed · +29 lines · +9 tokens per session 8462738ebd2c
  3. 11d ago First seen · 53 lines · 65 tokens per session scan A 580f1443c35b

Subscribe to this mod's changes

seo-fixer-writer is an agent published in the GitHub repository Hainrixz/claude-seo-ai (59 stars, last pushed 4d ago), licensed MIT. It adds 93 tokens to every session and 1,517 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

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