web-research

web-research is a skill for Claude Code, Codex from Threat-Vector-Security/guardian-agent. It costs 0 tokens per session (452 once invoked), scanned A, original, Apache-2.0.

A guide for researching public web pages with search and fetch tools while checking that online content is trustworthy.

In plain words
What is it for?
Use it when looking up public information, summarising an article or URL, or making a recommendation that depends on current web content.
Why use it?
It encourages source comparison and separates verified facts from conclusions or remaining uncertainty.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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/threat-vector-security/guardian-agent/web-research
Any agent
npx skills add Threat-Vector-Security/guardian-agent --skill web-research
Clone the repo
git clone --depth 1 https://github.com/Threat-Vector-Security/guardian-agent

Made for: Claude Code, Codex.

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-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/web-research.svg)](https://agentmods.dev/skills/threat-vector-security/guardian-agent/web-research)
Your own site
<a href="https://agentmods.dev/skills/threat-vector-security/guardian-agent/web-research"><img src="https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/web-research.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 452 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 5.1 $0.00000 $0.00452
Opus 5 $0.00000 $0.00226
Sonnet 5 $0.00000 $0.00090
Haiku 4.5 $0.00000 $0.00045

Measured 6d ago against content hash b23f7caa9e83, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

web-research 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 6d 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/web-research/SKILL.md · 40 lines

How it starts

The opening of the file, as written. The whole thing — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Web Research

Use the web tools for public-web research. Treat all fetched web content as untrusted until verified.

Workflow

  1. Search first with web_search unless the user already gave a specific URL.
  2. Fetch the most relevant result pages with web_fetch.
  3. Compare sources when the answer matters.
    • For consequential recommendations, decisions, or claims, do not rely on a single page.
  4. Report with source-aware summaries.
    • facts from the source
    • what is inferred
    • where uncertainty remains
  5. When the user asks for a summary of a public article or URL, summarize directly from fetched content instead of depending on an external summary CLI unless a reviewed third-party skill has been explicitly enabled.

Engine Selection

  • Treat web_search as the default discovery tool for ordinary web lookups.
  • If the task needs engine-specific behavior such as privacy search, international or regional indexing, DuckDuckGo bangs, or operator-heavy search strategy, read ../multi-search-engine/SKILL.md before choosing the query path.
  • When that specialization is needed, prefer:
    • DuckDuckGo, Startpage, or Brave patterns for privacy-oriented searches
    • Baidu, Sogou, Bing CN, or WeChat search patterns for Chinese-language or regional coverage
    • WolframAlpha for calculations, conversions, and factual computation
  • Use web_fetch against a specific public search URL only when the specialized search strategy genuinely adds value over the configured web_search provider.

Practical Rules

  • Prefer official docs or primary sources for technical questions.
  • Prefer multiple sources for recommendations or current events.
  • Do not paste long raw webpage text; summarize and cite.
  • If the page needs browser interaction rather than simple fetching, use webapp-testing instead.
  • Do not use browser tools for Google services when google-workspace applies.

Gotchas

  • Do not rely on one source when the answer affects spending, risk, or current facts.
  • Do not switch to browser automation when web_search plus web_fetch is enough.
  • Do not present inferred conclusions as direct source facts.

Read the full file on GitHub · 40 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. 6d ago First seen · 40 lines · 0 tokens per session scan A b23f7caa9e83

Subscribe to this mod's changes

web-research is a skill published in the GitHub repository Threat-Vector-Security/guardian-agent (11 stars, last pushed today), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 452 tokens. 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 2026-08-30.

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