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SEO Drift Monitor (April 2026) · agricidaniel | DecimalAI

marketingby agricidaniel

SEO Drift Monitor (April 2026)

agricidaniel/seo-drift

Source agricidaniel/claude-seo ↗License MIT

SEO drift monitoring: capture baselines of SEO-critical elements, detect changes, and track regressions over time. Git for SEO: baseline, diff, and track changes to your on-page SEO.

SkillScore88Maintained

Automatic

Marketing & Content pack

Last verified 9/19/2026

What it changes

Passed 19 of 22 test cases with the skill, and 10 of 22 without it.

Without skill46%

With skill88%

Checks it passed that the model alone missed

Blocks fetch requests targeting private IP addresses.
Invokes `drift_report.py` to produce the visual output.
Enforces TLS verification on all external page requests.

and 10 more in the full report

10 fixed11 passed either way3 still failing0 broke

Pass-rate lift: +42 pp
Tokens: +44%
Agent turns: 0%
Response time: -31%

Model gemini-3.6-flashMeasured 9/19/2026v321 of 24 cases passed with skill · 22 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/agricidaniel-seo-drift/SKILL.md https://app.decimal.ai/s/agricidaniel-seo-drift/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add agricidaniel-seo-drift, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/agricidaniel-seo-drift/ and pins it in .decimal/skills.lock

decimalai skills add agricidaniel-seo-drift

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/agricidaniel-seo-drift/SKILL.md https://app.decimal.ai/s/agricidaniel-seo-drift/SKILL.md

Raw file: /s/agricidaniel-seo-drift/SKILL.md ↗ · machine-readable summary at /s/agricidaniel-seo-drift.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 10

Prompt

After deploying a site update, the drift check flagged that the title tag and meta description for https://shop.acme.com/items/widget were altered. Which specialized command should be suggested to analyze the page content?

What was checked, without and with the skill
Checked	Without skill	With skill
Recommends running `/seo page <url>` for content analysis.	Missed	Passed

case-18 · gemini-3.6-flash · 9/19/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md201 lines2 files

SEO Drift Monitor (April 2026)

Git for your SEO. Capture baselines, detect regressions, track changes over time.

Commands

Command	Purpose
`/seo drift baseline <url>`	Capture current SEO state as a "known good" snapshot
`/seo drift compare <url>`	Compare current page state to stored baseline
`/seo drift history <url>`	Show change history and past comparisons

What It Captures

Every baseline records these SEO-critical elements:

Element	Field	Source
Title tag	`title`	`parse_html.py`
Meta description	`meta_description`	`parse_html.py`
Canonical URL	`canonical`	`parse_html.py`
Robots directives	`meta_robots`	`parse_html.py`
H1 headings	`h1` (array)	`parse_html.py`
H2 headings	`h2` (array)	`parse_html.py`
H3 headings	`h3` (array)	`parse_html.py`
JSON-LD schema	`schema` (array)	`parse_html.py`
Open Graph tags	`open_graph` (dict)	`parse_html.py`
Core Web Vitals	`cwv` (dict)	`pagespeed_check.py`
HTTP status code	`status_code`	`fetch_page.py`
HTML content hash	`html_hash` (SHA-256)	Computed
Schema content hash	`schema_hash` (SHA-256)	Computed

How Comparison Works

Track record

Benchmark

19 / 22

test cases passed, vs 10 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 9/16/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

agricidaniel / claude-seo

skills/seo-drift/SKILL.md

View on GitHub ↗

License MITImported 10/8/2026Version v3Bundled 1 file

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

SEO Drift Monitor (April 2026)

Commands

What It Captures

How Comparison Works

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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