blogwatcher

blogwatcher is a skill for Claude Code, Codex from NousResearch/hermes-agent. It costs 18 tokens per session (1,754 once invoked), scanned A, original, MIT.

A tool for tracking updates from blogs and RSS or Atom feeds, which are standard lists of new posts from websites.

In plain words
What is it for?
It helps discover feeds, scan for new articles, import OPML feed lists, scrape pages when feeds are unavailable, and manage read or unread status.
Why use it?
It gathers changes from many sources and keeps track of which articles you have read, reducing the need to check each site manually.

Skill for Claude CodeCodex

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

Good fit It helps discover feeds, scan for new articles, import OPML feed lists, scrape pages when feeds are unavailable, and manage read or unread status.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nousresearch/hermes-agent/blogwatcher
About the project

Hermes Agent is an AI assistant that learns from its use by creating and improving skills, retaining knowledge, searching past conversations, and adapting to its users. It is for people who want to run an agent through a terminal or messaging platforms while connecting it to different AI models and scheduled tasks.

NousResearch/hermes-agent · 243,146 stars · on GitHub · hermes-agent.nousresearch.com

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 NousResearch/hermes-agent --skill blogwatcher
Clone the repo
git clone --depth 1 https://github.com/NousResearch/hermes-agent

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 blogwatcher

README.md
[![agentmods](https://agentmods.dev/badge/skills/nousresearch/hermes-agent/blogwatcher.svg)](https://agentmods.dev/skills/nousresearch/hermes-agent/blogwatcher)
Your own site
<a href="https://agentmods.dev/skills/nousresearch/hermes-agent/blogwatcher"><img src="https://agentmods.dev/badge/skills/nousresearch/hermes-agent/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 1,754 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. Third-party audits
  • Snyk warn 7 Sept 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 7 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 35
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium MCP Rug Pull · line 49
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium MCP Rug Pull · line 52
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium Excessive Agency · line 98
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • low Tool Misuse · line 35
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • low Tool Misuse · line 49
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • low Tool Misuse · line 52
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
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 $0.00018 $0.01754
Opus 5 $0.00009 $0.00877
Sonnet 5 $0.00004 $0.00351
Haiku 4.5 $0.00002 $0.00175

Measured yesterday against content hash 5f77f5d2e040, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, 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 yesterday.

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

Copies of this mod

8 near-identical copies found in the catalogue:

optional-skills/research/blogwatcher/SKILL.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 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.

Working with Hermes tools (read this first)

blogwatcher-cli is the feed database; Hermes tools do the automation around it:

  • Recurring watch — use the cronjob tool's monitor field, not a bare schedule. monitor runs a script each tick and only wakes the agent when output changes: set it to a script that runs blogwatcher-cli scan >/dev/null 2>&1 && blogwatcher-cli articles (deterministic output; new articles = changed output = agent wakes with the diff injected). Unchanged ticks cost zero LLM calls. Set deliver to route digests to a chat/channel; add continuity: true so consecutive digests can dedupe.
  • Reading an article the user asks about: web_extract([url]) on the article URL from blogwatcher-cli articles — do not re-scrape by hand.
  • One-off "watch this page for changes" without feed semantics: skip this skill; the cronjob tool's monitor field accepts an http(s) URL directly.
  • One-off read of a feed or a site's latest posts, nothing to install: the bundled rss-feeds skill (scripts/feed.py read URL); blogwatcher earns its install when you track many feeds with read/unread state.
  • Company/competitor tracking with analysis and citations: prefer the competitor-news-monitor skill; blogwatcher is the lighter raw-feed layer it can sit on.

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

Read the full file on GitHub · 148 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.

  1. yesterday Changed · +1 lines 5f77f5d2e040
  2. 4d ago First seen · 147 lines · 18 tokens per session scan A e68821f41bfe

Subscribe to this mod's changes

blogwatcher is a skill published in the GitHub repository NousResearch/hermes-agent (243,146 stars, last pushed today), licensed MIT. It adds 18 tokens to every session and 1,754 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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