A tool for monitoring blogs and RSS or Atom feeds, which are formats websites use to publish update lists. It can discover feeds, fall back to reading web pages, import OPML feed lists, and manage read and unread articles.

Use it to follow blogs, discover their feeds, import an existing feed list, find new articles, and mark articles as read or unread.

It removes the need to check multiple blogs manually for new posts. It also keeps tracked articles organized by their reading status.

blogwatcher — Skill for Claude Code and Codex by chemany

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 chemany/Mente --skill blogwatcher

Clone the repo

git clone --depth 1 https://github.com/chemany/Mente

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/chemany/mente/blogwatcher.svg)](https://agentmods.dev/skills/chemany/mente/blogwatcher)

Your own site

<a href="https://agentmods.dev/skills/chemany/mente/blogwatcher"><img src="https://agentmods.dev/badge/skills/chemany/mente/blogwatcher.svg" alt="Measured on agentmods" height="20"></a>

Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,426 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin 94% copy Near-identical to another mod 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	$0.00018	$0.01426
Opus 5	$0.00009	$0.00713
Sonnet 5	$0.00004	$0.00285
Haiku 4.5	$0.00002	$0.00143

Measured 4d ago against content hash 2fa4ea3866b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

blogwatcher scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **Binary (Linux amd64):** `curl -sL https://github.com/JulienTant/blogwatcher-cli/releases/latest/download/blogwatcher-cli_linux_amd64.tar.gz | tar xz -C /usr/local/bin blogwatcher-cli`

Origin

This is a copy

94% identical to blogwatcher — 10 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/research/blogwatcher/SKILL.md · 137 lines

How it starts

The opening of the file, as written. The whole thing — 137 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blogwatcher

Track blog and RSS/Atom feed updates with the blogwatcher-cli tool. Supports automatic feed discovery, HTML scraping fallback, OPML import, and read/unread article management.

Installation

Pick one method:

Go: go install github.com/JulienTant/blogwatcher-cli/cmd/blogwatcher-cli@latest
Docker: docker run --rm -v blogwatcher-cli:/data ghcr.io/julientant/blogwatcher-cli
Binary (Linux amd64): curl -sL https://github.com/JulienTant/blogwatcher-cli/releases/latest/download/blogwatcher-cli_linux_amd64.tar.gz | tar xz -C /usr/local/bin blogwatcher-cli
Binary (Linux arm64): curl -sL https://github.com/JulienTant/blogwatcher-cli/releases/latest/download/blogwatcher-cli_linux_arm64.tar.gz | tar xz -C /usr/local/bin blogwatcher-cli
Binary (macOS Apple Silicon): curl -sL https://github.com/JulienTant/blogwatcher-cli/releases/latest/download/blogwatcher-cli_darwin_arm64.tar.gz | tar xz -C /usr/local/bin blogwatcher-cli
Binary (macOS Intel): curl -sL https://github.com/JulienTant/blogwatcher-cli/releases/latest/download/blogwatcher-cli_darwin_amd64.tar.gz | tar xz -C /usr/local/bin blogwatcher-cli

All releases: https://github.com/JulienTant/blogwatcher-cli/releases

Docker with persistent storage

By default the database lives at ~/.blogwatcher-cli/blogwatcher-cli.db. In Docker this is lost on container restart. Use BLOGWATCHER_DB or a volume mount to persist it:

# Named volume (simplest)
docker run --rm -v blogwatcher-cli:/data -e BLOGWATCHER_DB=/data/blogwatcher-cli.db ghcr.io/julientant/blogwatcher-cli scan

# Host bind mount
docker run --rm -v /path/on/host:/data -e BLOGWATCHER_DB=/data/blogwatcher-cli.db ghcr.io/julientant/blogwatcher-cli scan

Migrating from the original blogwatcher

If upgrading from Hyaxia/blogwatcher, move your database:

mv ~/.blogwatcher/blogwatcher.db ~/.blogwatcher-cli/blogwatcher-cli.db

The binary name changed from blogwatcher to blogwatcher-cli.

Read the full file on GitHub · 137 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.

4d ago First seen · 137 lines · 18 tokens per session scan A 2fa4ea3866b1

Subscribe to this mod's changes

blogwatcher is a skill published in the GitHub repository chemany/Mente (11 stars, last pushed 3mo ago), licensed MIT. It adds 18 tokens to every session and 1,426 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 94% identical to blogwatcher, differing in 10 lines, and is treated as a copy.

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