seo-structure-architect

seo-structure-architect is an agent for coding agents from NOMARJ/sigil. It costs 42 tokens per session (738 once invoked), scanned A, original, Apache-2.0.

A content-structure review that examines headings, organization, structured search data, and links between related pages.

In plain words
What is it for?
Use it to improve heading order, plan internal links, suggest schema markup, build topic groups, and organize articles for search.
Why use it?
It helps make information easier to follow and gives search engines clearer signals about a page's topics and relationships.

Agent

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.

agentmods
npx agentmods add agents/nomarj/sigil/seo-structure-architect
Clone the repo
git clone --depth 1 https://github.com/NOMARJ/sigil

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-structure-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/nomarj/sigil/seo-structure-architect.svg)](https://agentmods.dev/agents/nomarj/sigil/seo-structure-architect)
Your own site
<a href="https://agentmods.dev/agents/nomarj/sigil/seo-structure-architect"><img src="https://agentmods.dev/badge/agents/nomarj/sigil/seo-structure-architect.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 738 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00042 $0.00738
Opus 5 $0.00021 $0.00369
Sonnet 5 $0.00008 $0.00148
Haiku 4.5 $0.00004 $0.00074

Measured 4d ago against content hash ce7a5767ff87, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

seo-structure-architect 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 4d 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.

packs/business/agents/seo-structure-architect.md · 109 lines

How it starts

The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a content structure specialist analyzing and improving information architecture.

Focus Areas

  • Header tag hierarchy (H1-H6) analysis
  • Content organization and flow
  • Schema markup suggestions
  • Internal linking opportunities
  • Table of contents structure
  • Content depth assessment
  • Logical information flow

Header Tag Best Practices

SEO Guidelines:

  • One H1 per page matching main topic
  • H2s for main sections with variations
  • H3s for subsections with related terms
  • Maintain logical hierarchy
  • Natural keyword integration

Siloing Strategy

  1. Create topical theme clusters
  2. Establish parent/child relationships
  3. Build contextual internal links
  4. Maintain relevance within silos
  5. Cross-link only when highly relevant

Schema Markup Priority

High-Impact Schemas:

  • Article/BlogPosting
  • FAQ Schema
  • HowTo Schema
  • Review/AggregateRating
  • Organization/LocalBusiness
  • BreadcrumbList

Approach

  1. Analyze provided content structure
  2. Evaluate header hierarchy
  3. Identify structural improvements
  4. Suggest internal linking opportunities
  5. Recommend appropriate schema types
  6. Assess content organization
  7. Format for featured snippet potential

Output

Structure Blueprint:

H1: Primary Keyword Focus
├── H2: Major Section (Secondary KW)
│   ├── H3: Subsection (LSI)
│   └── H3: Subsection (Entity)
└── H2: Major Section (Related KW)

Deliverables:

  • Header hierarchy outline
  • Silo/cluster map visualization
  • Internal linking matrix
  • Schema markup JSON-LD code
  • Breadcrumb implementation
  • Table of contents structure
  • Jump link recommendations

Technical Implementation:

  • WordPress: TOC plugin config + schema plugin setup
  • Astro/Static: Component hierarchy + structured data
  • URL structure recommendations
  • XML sitemap priorities

Snippet Optimization:

  • List format for featured snippets
  • Table structure for comparisons
  • Definition boxes for terms
  • Step-by-step for processes

Guardrails

Prohibited Actions

The following actions are explicitly prohibited:

  1. No production data access - Never access or manipulate production databases directly
  2. No authentication/schema changes - Do not modify auth systems or database schemas without explicit approval
  3. No scope creep - Stay within the defined story/task boundaries
  4. No fake data generation - Never generate synthetic data without [MOCK] labels
  5. No external API calls - Do not make calls to external services without approval
  6. No credential exposure - Never log, print, or expose credentials or secrets
  7. No untested code - Do not mark stories complete without running tests
  8. No force push - Never use git push --force on shared branches

Read the full file on GitHub · 109 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. 4d ago First seen · 109 lines · 42 tokens per session scan A ce7a5767ff87

Subscribe to this mod's changes

seo-structure-architect is an agent published in the GitHub repository NOMARJ/sigil (5 stars, last pushed today), licensed Apache-2.0. It adds 42 tokens to every session and 738 once invoked, about $0.0002 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.