What is aeo-competitor-monitor?

A monitoring tool that tracks which competitor websites Gemini AI Overviews cite for selected prompts over time. It records citation frequency and snippets in an append-only JSON file and creates comparison reports.

Use it to scan chosen prompts, track competitor domains, compare citation share over time, and review changes in the sources used by Gemini AI Overviews.

It shows how often competitors appear in AI-generated search answers instead of measuring competition only through ordinary search rankings. Repeated scans reveal changes in which sources Gemini retrieves and cites.

aeo-competitor-monitor — Skill for Claude Code and Codex by psyduckler

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 psyduckler/aeo-skills --skill aeo-competitor-monitor

Clone the repo

git clone --depth 1 https://github.com/psyduckler/aeo-skills

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/psyduckler/aeo-skills/aeo-competitor-monitor/github.svg)](https://agentmods.dev/skills/psyduckler/aeo-skills/aeo-competitor-monitor)

Your own site

<a href="https://agentmods.dev/skills/psyduckler/aeo-skills/aeo-competitor-monitor"><img src="https://agentmods.dev/badge/skills/psyduckler/aeo-skills/aeo-competitor-monitor/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/psyduckler/aeo-skills/aeo-competitor-monitor"><img src="https://agentmods.dev/badge/skills/psyduckler/aeo-skills/aeo-competitor-monitor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,181 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00104	$0.02181
Opus 5.5	$0.00042	$0.00872
Sonnet 5.5	$0.00021	$0.00436
Haiku 4.5	$0.00010	$0.00218

Measured 2mo ago against content hash 631ec52a5ec3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

aeo-competitor-monitor 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 2mo ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/_shared.py, scripts/monitor.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

aeo-competitor-monitor/SKILL.md · 259 lines

How it starts

The opening of the file, as written. The whole thing — 259 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AEO Competitor Monitor

Source: github.com/psyduckler/aeo-skills Part of: AEO Skills Suite

Track which competitors get cited in AI Overviews — and how that changes over time.

Why This Matters

AI Overviews create a new competitive landscape. Influence happens at retrieval, not inside the model — the sources Gemini cites for your key prompts form the recurring retrieval set, and those are your real competitors. Gemini is search-first, searching before nearly every answer — influence compounds through repeated inclusion in this set. Tracking citation share over time reveals shifts in the recurring retrieval set:

Who's gaining ground — new content entering the recurring retrieval set
Who's losing ground — previously-cited pages dropping out of the candidate set
Market dynamics — how the retrieval set shifts with content updates, algorithm changes
Your relative position — where you stand in the candidate set vs competitors

Requirements

Gemini API key (free) — set as GEMINI_API_KEY env var
Python 3.9+
No pip dependencies (stdlib only)

Usage

Scan — Run a new competitive scan

# Scan two prompts, tracking three competitors
GEMINI_API_KEY="$GEMINI_API_KEY" python3 scripts/monitor.py scan \
    --prompts "best SEO tools" "content optimization software" \
    --competitors acme.com surferseo.com semrush.com \
    --data-file monitor-data.json

# With custom run count
GEMINI_API_KEY="$GEMINI_API_KEY" python3 scripts/monitor.py scan \
    --prompts "best SEO tools" \
    --competitors acme.com surferseo.com \
    --data-file monitor-data.json \
    --runs 30

Report — Generate a comparison report

# Text report
python3 scripts/monitor.py report --data-file monitor-data.json

# JSON report
python3 scripts/monitor.py report --data-file monitor-data.json --output json

Read the full file on GitHub · 259 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2mo ago First seen · 259 lines · 104 tokens per session scan A 631ec52a5ec3

Subscribe to this mod's changes

aeo-competitor-monitor is a skill published in the GitHub repository psyduckler/aeo-skills (13 stars, last pushed 5mo ago), licensed MIT. It adds 104 tokens to every session and 2,181 once invoked, about $0.0004 per session on Opus 5.5. 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.

Analytics and metrics Marketing and SEO

aeo-competitor-monitor next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
aeo-competitor-monitorpsyduckler/aeo-skills	Skill	13	5mo ago	MIT	A	104	Claude Code, Codex
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local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
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