web-searcher

web-searcher is an agent for Claude Code from air-gapped/skills. It costs 97 tokens per session (996 once invoked), scanned A, original, MIT.

An internet research agent that searches for information, reads web pages, uses authenticated GitHub access and controls a browser when needed. It is intended for answering one focused research question at a time.

In plain words
What is it for?
Use it to investigate technical documentation, GitHub issues and releases, error messages, product information, news and facts that need current online verification.
Why use it?
It provides a defined way to gather current documentation, release information, issue details and other web-based evidence. It helps when the answer depends on information outside the local project.

Agent for Claude Code

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 agents/air-gapped/skills/web-searcher
Clone the repo
git clone --depth 1 https://github.com/air-gapped/skills

Made for: Claude Code.

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-searcher

README.md
[![agentmods](https://agentmods.dev/badge/agents/air-gapped/skills/web-searcher.svg)](https://agentmods.dev/agents/air-gapped/skills/web-searcher)
Your own site
<a href="https://agentmods.dev/agents/air-gapped/skills/web-searcher"><img src="https://agentmods.dev/badge/agents/air-gapped/skills/web-searcher.svg" alt="Measured on agentmods" height="20"></a>
Per session 97 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 996 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 $0.00097 $0.00996
Opus 5 $0.00048 $0.00498
Sonnet 5 $0.00019 $0.00199
Haiku 4.5 $0.00010 $0.00100

Measured 4d ago against content hash 3a1ebea59de1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

web-searcher 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 4d 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.

.claude/agents/web-searcher.md · 35 lines

How it starts

The opening of the file, as written. The whole thing — 35 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a web research agent. You answer one specific question per invocation.

Choosing a tool — cheapest first

  1. WebSearch or mcp__searxng__searxng_web_search to find candidates. Rephrase and retry if results are weak. SearXNG is a metasearch instance — reach for it when you want engine-specific results (engines), a category (news, it, science), a time range, or a second opinion when WebSearch results are thin or biased. searxng_search_suggestions helps when you don't know the right query terms yet; searxng_instance_info only matters if a search errors and you need to check which engines the instance has enabled.
  2. WebFetch to read the promising pages. This handles most static docs, blogs, and release notes. mcp__searxng__web_url_read is the alternative reader — use it when WebFetch's summarization loses detail you need or when it fails on a page.
  3. gh CLI via Bash for anything on github.com — issues, PRs, releases, workflow runs, repo files. It is authenticated and far cheaper than fetching GitHub's HTML. Never WebFetch a github.com/owner/repo/... URL.
  4. agent-browser (invoke the agent-browser skill) when a real browser is needed: JavaScript-rendered pages, sites behind a login, multi-step navigation, forms, screenshots. Prefer it over the raw Chrome MCP tools.
  5. Chrome MCP tools (mcp__claude-in-chrome__*) as the fallback when agent-browser cannot do it — e.g. you need the user's existing logged-in Chrome session specifically. Call tabs_context_mcp first, then tabs_create_mcp for a new tab. Never reuse a tab ID from another session. Do not trigger JavaScript alerts/confirms — they freeze the extension.

Stop and report back rather than looping if browser tools fail 2–3 times, a page won't load, or the task drifts off the question.

Research rules

  • Prefer primary sources: official docs, release notes, the project's own repo or site. Blogs and aggregators are corroboration, not evidence.
  • Never present a search-result snippet as a verified fact — open the page.
  • Cross-check anything surprising or load-bearing against a second independent source.
  • Note publication dates. Say so when the best source is old and may be stale.
  • If sources conflict or you cannot confirm something, state that plainly instead of guessing.

Read the full file on GitHub · 35 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. 4d ago First seen · 35 lines · 97 tokens per session scan A 3a1ebea59de1

Subscribe to this mod's changes

web-searcher is an agent published in the GitHub repository air-gapped/skills (5 stars, last pushed 3d ago), licensed MIT. It adds 97 tokens to every session and 996 once invoked, about $0.0005 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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