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 skills add aksika/abtars --skill web-fetchgit clone --depth 1 https://github.com/aksika/abtarsWrote 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/aksika/abtars/web-fetch)<a href="https://agentmods.dev/skills/aksika/abtars/web-fetch"><img src="https://agentmods.dev/badge/skills/aksika/abtars/web-fetch/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/aksika/abtars/web-fetch"><img src="https://agentmods.dev/badge/skills/aksika/abtars/web-fetch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00017 | $0.00763 |
| Opus 5.5 | $0.00007 | $0.00305 |
| Sonnet 5.5 | $0.00003 | $0.00153 |
| Haiku 4.5 | $0.00002 | $0.00076 |
Grade A, and why
web-fetch 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 18d 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.
description: Fetch web content — 4-level escalation chain from curl to full browser How it starts
The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
web-fetch
Four levels of web content retrieval. Use the lightest level that works. Escalate up only when the current level fails.
Level 1 — curl (fastest, no rendering)
curl -sL "URL" --max-time 10 | head -200
Use when: open site, simple HTML, just need raw text.
Level 2 — Jina Reader (CF bypass, clean markdown)
curl -sL "https://r.jina.ai/URL" \
-H "User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36" \
--max-time 15
Use when:
- Direct curl returns CF challenge page or HTML soup
- Want clean markdown output instead of raw HTML
- Site has basic Cloudflare protection
Limitations: no JS execution, rate-limited (don't loop >5 URLs rapidly), some aggressive CF still blocks it.
Level 3 — lightpanda (JS rendering, fast)
lightpanda fetch --dump markdown --strip-mode clutter --wait-ms 5000 "URL"
Valid --strip-mode values: clutter|css|js|invisible|shell|ui (repeatable).
Use when:
- Levels 1-2 returned empty/broken content
- Page requires JavaScript to render (SPA, React, dynamic content)
- Still a single page, no interaction needed
10x faster than Chrome. Handles most JS-rendered pages. No login/interaction.
Level 4 — CloakBrowser (full browser, interaction)
Escalate to a managed Browsie session. Create a B-type kanban card with a detailed goal and report the card ID. Do NOT invoke a browser CLI from Main.
Goal checklist
Include in the goal:
- Objective and expected outcome
- Starting URL(s) and any prior fetch results
- Required interactions (login, forms, clicks, navigation)
- Expected artifacts (screenshots, extracted text, page info)
- Success criteria and stopping condition
Direct API
kanban_manage action=create type=B title="<short title>" goal="<detailed goal>"
ACP
abtars kanban create --type B --title "short title" --goal "$(cat <<'GOAL'
detailed goal text
GOAL
)"
Or pass a goal file:
abtars kanban create --type B --title "short title" --goal-file /tmp/goal.txt
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.
- 18d ago Changed · +2 lines c4ab73f15415
- 1mo ago First seen · 99 lines · 17 tokens per session scan A 100ced183286
web-fetch is a skill published in the GitHub repository aksika/abtars (10 stars, last pushed today), licensed Apache-2.0. It adds 17 tokens to every session and 763 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.
Other skills, from other repositories
Web Read
Keeps direct URL reading and text extraction available when a specific page matters more than search results.
url-gen
Generate clean, human-facing URLs for fetch tools when external evidence is needed.
web-access
A set of instructions for finding and reading information on the internet, including public pages and some interactive or login-required sites.
Web Search
Keeps lightweight public-web discovery available for prompts, scheduled jobs, and follow-up research.
browser
Automate browser interactions for web scraping, testing, and navigation. Use when the user needs to visit a webpage, interact with UI elements, take screenshots, or extract content from rendered pages.
search-craft
How to get real coverage out of a search engine that returns a handful of results per query, and when to reach for the crawler or the browser instead. Use at the start of any search that has to be thorough rather than quick.