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/ivancampos/agents/opml-readernpx skills add IvanCampos/agents --skill opml-readergit clone --depth 1 https://github.com/IvanCampos/agentsWrote 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/ivancampos/agents/opml-reader)<a href="https://agentmods.dev/skills/ivancampos/agents/opml-reader"><img src="https://agentmods.dev/badge/skills/ivancampos/agents/opml-reader.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 | $0.00064 | $0.00472 |
| Opus 5 | $0.00032 | $0.00236 |
| Sonnet 5 | $0.00013 | $0.00094 |
| Haiku 4.5 | $0.00006 | $0.00047 |
Grade A, and why
opml-reader 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 3d 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.
What it actually says
OPML Reader
Overview
Use scripts/opml_reader.py to (1) store OPML from a URL and (2) list the latest posts across all feeds in the OPML. Output timestamps are ISO-8601 in UTC.
Quick Start
- Create a venv and install dependency:
python3 -m venv ~/Code/sandbox/.venv-opml-reader
~/Code/sandbox/.venv-opml-reader/bin/pip install feedparser
- Store an OPML file:
~/Code/sandbox/.venv-opml-reader/bin/python scripts/opml_reader.py store \
"https://example.com/feeds.opml" \
"~/Code/Files/feeds.opml"
- Fetch latest posts:
~/Code/sandbox/.venv-opml-reader/bin/python scripts/opml_reader.py latest \
"~/Code/Files/feeds.opml" \
--limit 5
Workflow
- If the user supplies an OPML URL, store it under
~/Code/Filesusingstore. - If the OPML file already exists, reuse it unless the user explicitly asks to overwrite.
- Run
latestto aggregate posts and return the newest entries across feeds. - Report partial results if some feeds fail (network timeouts are expected on large lists).
Output Options
- Default output:
textlines formatted asindex. title | feed | date | link. - Use
--format jsonor--format tsvif the user needs machine-readable output. - Dedupe is on by default. Use
--no-dedupeif the user wants raw results. - Adjust
--workersand--timeoutfor large or slow feed lists.
Resources
scripts/
scripts/opml_reader.py: Store OPML files and list latest posts across RSS/Atom feeds.
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.
- 3d ago First seen · 50 lines · 64 tokens per session scan A 39dbc5a9dbf5
opml-reader is a skill published in the GitHub repository IvanCampos/agents (5 stars, last pushed 6mo ago), licensed MIT. It adds 64 tokens to every session and 472 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.
Other skills, from other repositories
systematic-debugging
4-phase root cause debugging: understand bugs before fixing.
github-code-review
Review PRs: diffs, inline comments via gh or REST.
plan
Plan mode: write markdown plan, no execution.
simplify-code
Sequential 3-lens cleanup of recent code changes.
skill-authoring
Author SKILL.md: frontmatter, structure, writing principles.
requesting-code-review
Pre-commit review: security scan, quality gates, auto-fix.