donsetch-cli

A command-line tool for web research that searches for pages, fetches a specific URL, or crawls a whole site into clean Markdown text. Markdown is plain text with simple formatting for headings and links.

In plain words
What is it for?
Use it to find relevant web pages, read one URL, extract documentation, or collect a whole site or documentation section.
Why use it?
It removes much of the page markup and can handle long pages, PDFs, JavaScript-rendered pages, and some bot-protected pages while reducing unnecessary text.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/knopki/agent-skills/donsetch-cli
Any agent
npx skills add knopki/agent-skills --skill donsetch-cli
Clone the repo
git clone --depth 1 https://github.com/knopki/agent-skills

Made for: Claude Code, Codex.

Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,566 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00069 $0.02566
Opus 5 $0.00034 $0.01283
Sonnet 5 $0.00014 $0.00513
Haiku 4.5 $0.00007 $0.00257

Measured 2d ago against content hash c4df01d55ce7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

donsetch-cli 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 2d 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.

skills/donsetch-cli/SKILL.md · 207 lines

How it starts

The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.

donsetch CLI

Overview

Drive the donsetch CLI to do web research for an agent: search, fetch, and crawl. Each command returns clean markdown plus a machine-readable JSON envelope (--json), token-efficient by default, with bot-wall/PDF handling built in.

Assume installed, otherwise: npm install -g donsetch or ask user to install.

When to Use

Trigger this skill when live web content is needed:

  • The user asks to search the web, look something up online, or get current information beyond the model's training data.
  • A specific URL must be read as clean markdown (incl. pages behind a bot-wall or JS shell, or a PDF).
  • A whole site or docs subsite must be extracted into markdown.
  • Token cost matters and only the relevant blocks of a long page are wanted.

Do not trigger this skill for:

  • Code search across public GitHub repos — use the grep-app-cli skill (literal source matching, not web search).
  • Reading files already on the local filesystem — use read.

Decision: which command?

Need Command
Discover what to read (find URLs) donsetch search
Read one specific URL donsetch fetch
Read a long docs page efficiently fetch --toc, then --section or --focus
Extract a multi-page site/docs donsetch crawl
See a site's URL inventory before fetching crawl --mode map
Sitemap missing or map returned empty crawl --mode content
A crawl stopped on budget/deadline crawl --resume <token>

Pipeline: search → pick best URLs → fetch (or crawl for many pages).

donsetch search — find URLs

donsetch search rust async trait dyn dispatch
donsetch search "exact phrase" --intent code --max-results 10
donsetch search site:github.com tokio
  • --max-results (default 7, max 12). The top 7 almost always suffice; raise only when results are weak.
  • --intent auto|web|code|paper|news|entity. auto detects from the query and adds verticals: code → GitHub/HN/StackExchange/MDN, paper → Scholar/arXiv, news → Google News/HN, entity → Wikipedia.
  • --json for the full envelope; -q to silence the stderr stats line.

Read the full file on GitHub · 207 lines

Files

What ships with it

1 file 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.

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. 2d ago First seen · 207 lines · 69 tokens per session scan A c4df01d55ce7

Subscribe to this mod's changes

donsetch-cli is a skill published in the GitHub repository knopki/agent-skills (2 stars, last pushed 18d ago), licensed MIT. It adds 69 tokens to every session and 2,566 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.

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