web-search

web-search is a skill for Claude Code, Codex from arch3rPro/ark-space. It costs 74 tokens per session (1,838 once invoked), scanned A, original, MIT.

A web-search skill for discovering public sources from a question, finding research papers on arXiv, or finding pages related to a known URL. arXiv is a public website where researchers share scientific papers before formal publication.

In plain words
What is it for?
Use it to search the public web, find papers, search through a privacy-focused SearXNG service, or discover pages similar to a supplied webpage.
Why use it?
It gives a single way to search across several providers while keeping search and related-page requests distinct. It also records the provider, request details when available, result links, and fallbacks.

Skill for Claude CodeCodex

Part of the ark-space plugin — 18 skills, 11 agents shipped together

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/arch3rpro/ark-space/web-search
Any agent
npx skills add arch3rPro/ark-space --skill web-search
Clone the repo
git clone --depth 1 https://github.com/arch3rPro/ark-space

Made for: Claude Code, Codex.

Or install ark-space, the plugin that ships this one along with the rest of its 18 skills, 11 agents.

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 web-search

README.md
[![agentmods](https://agentmods.dev/badge/skills/arch3rpro/ark-space/web-search.svg)](https://agentmods.dev/skills/arch3rpro/ark-space/web-search)
Your own site
<a href="https://agentmods.dev/skills/arch3rpro/ark-space/web-search"><img src="https://agentmods.dev/badge/skills/arch3rpro/ark-space/web-search.svg" alt="Measured on agentmods" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,838 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 $0.00074 $0.01838
Opus 5 $0.00037 $0.00919
Sonnet 5 $0.00015 $0.00368
Haiku 4.5 $0.00007 $0.00184

Measured 5d ago against content hash 6d8683c8d028, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

web-search 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 5d ago.

The scan reads SKILL.md. This mod also ships 10 executable files (scripts/arxiv_search.py, scripts/brave_search.py, scripts/duckduckgo_search.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/ark-space/skills/web-search/SKILL.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Discover public sources through the configured provider registry. This is the single query-search entry point; provider-specific syntax, filters, and troubleshooting live in docs/.

Select one explicit mode:

  • search: accept a query and use registry/search-providers.yaml (Exa MCP, Exa, Tavily, Firecrawl, Jina, DuckDuckGo, Brave, SearXNG, arXiv).
  • related: accept a seed URL and use registry/related-page-providers.yaml (Exa similar links).

Do not infer related from an arbitrary URL: use it only when the URL is the semantic seed. Do not silently substitute a user-requested provider. Report the actual provider, request ID when supplied, result URLs, and any fallback.

Before Use

Resolve the installed ArkSpace package root before running commands. Replace <installed-arkspace-path> with the directory two levels above this loaded SKILL.md, such as /Users/<user>/.claude/plugins/cache/ark-space/ark-space/0.2.0. Use the installed package path, not a repository-relative command.

Check a provider before searching when privacy, reproducibility, or reliability matters:

python3 <installed-arkspace-path>/scripts/arkspace.py provider check exa-mcp --capability web_search
python3 <installed-arkspace-path>/scripts/arkspace.py provider check jina --capability web_search
python3 <installed-arkspace-path>/scripts/arkspace.py provider check duckduckgo --capability web_search
python3 <installed-arkspace-path>/scripts/arkspace.py provider check brave --capability web_search
python3 <installed-arkspace-path>/scripts/arkspace.py provider check tavily --capability web_search
python3 <installed-arkspace-path>/scripts/arkspace.py provider check searxng
python3 <installed-arkspace-path>/scripts/arkspace.py provider check arxiv --capability web_search

If a check fails or a provider is unconfigured, use provider-manager; never ask users to edit provider files or expose keys. arXiv needs no key or setup. SearXNG needs a self-hosted URL (provider configure searxng --base-url <url>, SEARXNG_URL, or --base-url). The keyless providers exa-mcp, jina, and duckduckgo need no configuration; brave is keyed and needs BRAVE_API_KEY.

Read the full file on GitHub · 97 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. 5d ago First seen · 97 lines · 74 tokens per session scan A 6d8683c8d028

Subscribe to this mod's changes

web-search is a skill published in the GitHub repository arch3rPro/ark-space (2 stars, last pushed 10d ago), licensed MIT. It adds 74 tokens to every session and 1,838 once invoked, about $0.0004 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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