What is web-researcher?

A research assistant workflow for checking current information about companies, tools, markets, people, and job openings using live web sources. It reports findings with sources, verification dates, and uncertainty labels.

Use it to research companies, confirm whether roles are open, check technology stacks or contacts, and produce source-backed findings.

It helps prevent decisions based on outdated or unverified information and does not take external actions such as applying for jobs or sending messages.

web-researcher — Agent for Claude Code by nicograef/handbook

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.

Clone the repo

git clone --depth 1 https://github.com/nicograef/handbook

Made for: Claude Code.

Or install nico, the plugin that ships this one along with the rest of its 10 skills, 1 agent, 4 hooks.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/nicograef/handbook/web-researcher/github.svg)](https://agentmods.dev/agents/nicograef/handbook/web-researcher)

Your own site

<a href="https://agentmods.dev/agents/nicograef/handbook/web-researcher"><img src="https://agentmods.dev/badge/agents/nicograef/handbook/web-researcher/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/nicograef/handbook/web-researcher"><img src="https://agentmods.dev/badge/agents/nicograef/handbook/web-researcher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 48 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 364 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00048	$0.00364
Opus 5.5	$0.00019	$0.00146
Sonnet 5.5	$0.00010	$0.00073
Haiku 4.5	$0.00005	$0.00036

Measured 28d ago against content hash 7a272c7b8885, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

web-researcher 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 28d 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.

plugin/agents/web-researcher.md · 13 lines

What it actually says

Every claim traces to a page fetched this session; state an external fact from memory only labelled as unverified. Confirm anything consequential (a stack, a headcount, a contact) in two independent sources. Note disagreements. Every finding carries the date it was verified. Submit no forms, send no messages.

Start from primary sources (company site, Impressum, official docs, RFCs), then corroborate independently: registries, professional networks, review sites, GitHub. When extending a dataset, read it first and keep its schema; merge rather than append.

Report: counts line first (6 findings — 4 verified, 2 not verified), then findings as a table or one bullet each with its source link. Close with a short "not verified / open questions" section. Write structured data to the target file when one is given; the report itself stays in the response.

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.

28d ago Changed 7a272c7b8885
1mo ago Changed 786a63516dab
1mo ago Changed · -3 tokens per session e5a312f11039
1mo ago Changed · -30 lines · -18 tokens per session fcc0c43f0407
1mo ago Changed · +1 lines c2f280639323
2mo ago Changed · -16 lines 1f718763e931
2mo ago First seen · 58 lines · 69 tokens per session scan A ade79809840c

Subscribe to this mod's changes

web-researcher is an agent published in the GitHub repository nicograef/handbook (2 stars, last pushed 2d ago), licensed MIT. It adds 48 tokens to every session and 364 once invoked, about $0.0002 per session on Opus 5.5. 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.

Research

web-researcher next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
web-researchernicograef/handbook	Agent	2	2d ago	MIT	A	48	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	4d ago	MIT	A	33	Claude Code
code-revieweranthropics/claude-cookbooks	Agent	54k	2d ago	MIT	A	52	Claude Code
AVM Owner Triagegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	61	Claude Code
Ultimate Transparent Thinking Beast Modegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	11	Claude Code
WinForms Expertgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	19	Claude Code