context-monitor

context-monitor is a skill for Claude Code, Codex from context-dot-dev/cursor-plugin. It costs 50 tokens per session (257 once invoked), scanned A, original, MIT.

A recurring website-change monitor that uses Context.dev to check pages or sites on a schedule and record what changed.

In plain words
What is it for?
Use it to watch pages, schedule repeated checks, inspect changes and past runs, and pause or delete monitors when needed.
Why use it?
It removes the need to revisit websites manually when you need to notice future updates. It also keeps monitor runs and change history available for review.

Skill for Claude CodeCodex

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 skills/context-dot-dev/cursor-plugin/context-monitor
Any agent
npx skills add context-dot-dev/cursor-plugin --skill context-monitor
Clone the repo
git clone --depth 1 https://github.com/context-dot-dev/cursor-plugin

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 context-monitor

README.md
[![agentmods](https://agentmods.dev/badge/skills/context-dot-dev/cursor-plugin/context-monitor.svg)](https://agentmods.dev/skills/context-dot-dev/cursor-plugin/context-monitor)
Your own site
<a href="https://agentmods.dev/skills/context-dot-dev/cursor-plugin/context-monitor"><img src="https://agentmods.dev/badge/skills/context-dot-dev/cursor-plugin/context-monitor.svg" alt="Measured on agentmods" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 257 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 $0.00050 $0.00257
Opus 5 $0.00025 $0.00129
Sonnet 5 $0.00010 $0.00051
Haiku 4.5 $0.00005 $0.00026

Measured 4d ago against content hash ec6c2343cc38, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

context-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 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.

skills/context-monitor/SKILL.md · 19 lines

What it actually says

Monitor website changes

Use monitors only for recurring work. For a one-time check, scrape or crawl instead.

Workflow

  1. Confirm the target, monitoring goal, schedule, and desired notification behavior.
  2. Use create-monitor only after the user clearly asks to create ongoing monitoring. Creation immediately queues the initial baseline.
  3. Do not call run-monitor-now immediately after creation unless the user asks for an additional run.
  4. Inspect results with list-monitor-runs, get-monitor-run, list-monitor-changes, list-changes, or get-change.
  5. Use list-monitor-credit-usage when the user asks about monitor consumption.

Use list-monitors and get-monitor for inspection. update-monitor, delete-monitor, and run-monitor-now modify external state; execute them only when the user explicitly requests that action. Prefer pausing through update-monitor over deletion when the user only wants checks temporarily stopped.

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 · 19 lines · 50 tokens per session scan A ec6c2343cc38

Subscribe to this mod's changes

context-monitor is a skill published in the GitHub repository context-dot-dev/cursor-plugin (4 stars, last pushed 17d ago), licensed MIT. It adds 50 tokens to every session and 257 once invoked, about $0.0003 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.

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