competitor-monitor

competitor-monitor is a skill for Claude Code, Codex from guia-matthieu/clawfu-skills. It costs 35 tokens per session (724 once invoked), scanned A, original, MIT.

A tool for checking competitor websites for changes to prices, features, pages, or other content.

In plain words
What is it for?
It helps watch specific web pages or page elements, compare them with saved versions, and support regular competitor reviews.
Why use it?
It avoids relying on occasional manual checks and helps reveal website updates that might otherwise be missed.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python scripts/main.py batch competitors.txt --output ./snapshots/.

Good fit It helps watch specific web pages or page elements, compare them with saved versions, and support regular competitor reviews.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/guia-matthieu/clawfu-skills
agentmods
npx agentmods add skills/guia-matthieu/clawfu-skills/competitor-monitor

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.

agentmods badge for competitor-monitor

README.md
[![agentmods](https://agentmods.dev/badge/skills/guia-matthieu/clawfu-skills/competitor-monitor/github.svg)](https://agentmods.dev/skills/guia-matthieu/clawfu-skills/competitor-monitor)
Your own site
<a href="https://agentmods.dev/skills/guia-matthieu/clawfu-skills/competitor-monitor"><img src="https://agentmods.dev/badge/skills/guia-matthieu/clawfu-skills/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.

agentmods 80×15 button for competitor-monitor

Your own site · 80×15
<a href="https://agentmods.dev/skills/guia-matthieu/clawfu-skills/competitor-monitor"><img src="https://agentmods.dev/badge/skills/guia-matthieu/clawfu-skills/competitor-monitor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 724 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00035 $0.00724
Opus 5 $0.00017 $0.00362
Sonnet 5 $0.00007 $0.00145
Haiku 4.5 $0.00003 $0.00072

Measured 13d ago against content hash ef61e78a4f3b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

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 13d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/main.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.

skills/automation/competitor-monitor/SKILL.md · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competitor Monitor

Track competitor websites for changes and get alerts - stay informed about pricing, features, and content updates.

When to Use This Skill

  • Pricing intelligence - Track competitor price changes
  • Feature tracking - Monitor new feature announcements
  • Content watch - Track new blog posts or pages
  • Change alerts - Get notified of website updates
  • Competitive analysis - Regular competitor audits

What Claude Does vs What You Decide

Claude Does You Decide
Structures analysis frameworks Strategic priorities
Synthesizes market data Competitive positioning
Identifies opportunities Resource allocation
Creates strategic options Final strategy selection
Suggests implementation approaches Execution decisions

Dependencies

pip install beautifulsoup4 requests click
# For diff comparison:
pip install diff-match-patch

Commands

Watch URL

python scripts/main.py watch https://competitor.com/pricing
python scripts/main.py watch https://competitor.com/pricing --selector ".price"

Check Changes

python scripts/main.py diff https://competitor.com/pricing --baseline cache.html

Monitor Pricing

python scripts/main.py pricing https://competitor.com/pricing

Batch Monitor

python scripts/main.py batch competitors.txt --output changes/

Examples

Example 1: Track Pricing Changes

# First, capture baseline
python scripts/main.py watch https://competitor.com/pricing --save baseline.html

# Later, check for changes
python scripts/main.py diff https://competitor.com/pricing --baseline baseline.html

# Output:
# Changes Detected!
# ─────────────────────
# - Starter: $29/mo → $39/mo (+34%)
# - Pro: $99/mo (unchanged)
# + New: Enterprise tier added

Example 2: Monitor Multiple Competitors

# Create competitor list
cat > competitors.txt << EOF
https://competitor1.com/pricing
https://competitor2.com/pricing
https://competitor3.com/features
EOF

# Run batch monitor
python scripts/main.py batch competitors.txt --output ./snapshots/

# Output: Creates timestamped snapshots for each URL

Read the full file on GitHub · 128 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.

  1. 13d ago First seen · 128 lines · 35 tokens per session scan A ef61e78a4f3b

Subscribe to this mod's changes

competitor-monitor is a skill published in the GitHub repository guia-matthieu/clawfu-skills (149 stars, last pushed 5mo ago), licensed MIT. It adds 35 tokens to every session and 724 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 2026-08-30.

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