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.
npx agentmods add skills/davidtoby/agent-skills/blogwatchernpx skills add davidtoby/agent-skills --skill blogwatchergit clone --depth 1 https://github.com/davidtoby/agent-skillsWrote 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.
[](https://agentmods.dev/skills/davidtoby/agent-skills/blogwatcher)<a href="https://agentmods.dev/skills/davidtoby/agent-skills/blogwatcher"><img src="https://agentmods.dev/badge/skills/davidtoby/agent-skills/blogwatcher.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00020 | $0.00361 |
| Opus 5 | $0.00010 | $0.00180 |
| Sonnet 5 | $0.00004 | $0.00072 |
| Haiku 4.5 | $0.00002 | $0.00036 |
Grade A, and why
blogwatcher 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 6d 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.
This is a copy
98% identical to blogwatcher — 25 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.
What it actually says
blogwatcher
Track blog and RSS/Atom feed updates with the blogwatcher CLI.
Install
- Go:
go install github.com/Hyaxia/blogwatcher/cmd/blogwatcher@latest
Quick start
blogwatcher --help
Common commands
- Add a blog:
blogwatcher add "My Blog" https://example.com - List blogs:
blogwatcher blogs - Scan for updates:
blogwatcher scan - List articles:
blogwatcher articles - Mark an article read:
blogwatcher read 1 - Mark all articles read:
blogwatcher read-all - Remove a blog:
blogwatcher remove "My Blog"
Example output
$ blogwatcher blogs
Tracked blogs (1):
xkcd
URL: https://xkcd.com
$ blogwatcher scan
Scanning 1 blog(s)...
xkcd
Source: RSS | Found: 4 | New: 4
Found 4 new article(s) total!
Notes
- Use
blogwatcher <command> --helpto discover flags and options.
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.
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.
- 6d ago First seen · 47 lines · 20 tokens per session scan A c22cd0c2c618
blogwatcher is a skill published in the GitHub repository davidtoby/agent-skills (10 stars, last pushed 1mo ago), licensed MIT. It adds 20 tokens to every session and 361 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to blogwatcher, differing in 25 lines, and is treated as a copy.
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