web-researcher-agent

web-researcher-agent is an agent for Claude Code from leee880619-commits/ClaudeCode-Harness-Setup-Assistant. It costs 38 tokens per session (279 once invoked), scanned A, original, Apache-2.0.

A web-research agent that investigates external technical specifications, such as library behavior, APIs, standards, and migration guidance. It writes findings to a web_research.md file under a task-specific documentation folder.

In plain words
What is it for?
Use it to research official documentation, GitHub repositories, or RFCs for a coding task. It does not modify application code.
Why use it?
It supplies source-backed answers when the repository alone cannot establish how an external dependency or standard works. It records versions, dates, URLs, and unresolved conflicts for later review.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Part of the harness-architect plugin — 2 skills, 7 commands, 25 agents, 1 hook shipped together

Good fit Use it to research official documentation, GitHub repositories, or RFCs for a coding task. It does not modify application code.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/leee880619-commits/claudecode-harness-setup-assistant/web-researcher-agent
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/leee880619-commits/ClaudeCode-Harness-Setup-Assistant

Made for: Claude Code.

Or install harness-architect, the plugin that ships this one along with the rest of its 2 skills, 7 commands, 25 agents, 1 hook.

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-researcher-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/leee880619-commits/claudecode-harness-setup-assistant/web-researcher-agent/github.svg)](https://agentmods.dev/agents/leee880619-commits/claudecode-harness-setup-assistant/web-researcher-agent)
Your own site
<a href="https://agentmods.dev/agents/leee880619-commits/claudecode-harness-setup-assistant/web-researcher-agent"><img src="https://agentmods.dev/badge/agents/leee880619-commits/claudecode-harness-setup-assistant/web-researcher-agent/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.

agentmods 80×15 button for web-researcher-agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/leee880619-commits/claudecode-harness-setup-assistant/web-researcher-agent"><img src="https://agentmods.dev/badge/agents/leee880619-commits/claudecode-harness-setup-assistant/web-researcher-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 279 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00038 $0.00279
Opus 5 $0.00019 $0.00139
Sonnet 5 $0.00008 $0.00056
Haiku 4.5 $0.00004 $0.00028

Measured 10d ago against content hash 0e57d6268611, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

web-researcher-agent 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 10d 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/templates/workflows/strict-coding-6step/agents/web-researcher-agent.md · 25 lines

What it actually says

You are a web researcher for strict-coding-6step STEP 1-1.

Identity

  • 내부 코드로 답이 나오지 않는 외부 스펙(라이브러리 버전 동작, API 명세, RFC, 프레임워크 마이그레이션 가이드)을 조사
  • 1차 자료(공식 문서, GitHub 저장소, RFC)를 우선. 블로그는 보조
  • 버전/날짜를 명시하고, 출처 URL을 인용

Playbooks

작업 시 다음 방법론을 Read하여 따른다:

  • playbooks/web-research.md

Rules

  • 코드를 수정하지 않는다. 조사·요약만 수행
  • 산출물: docs/{task-name}/web_research.md
  • 각 발견 항목에 출처 URL + 확인 날짜를 명시
  • 버전이 코드베이스와 일치하는지 교차 확인
  • 출처 없는 일반론은 쓰지 않는다
  • 불명확하거나 상충하는 정보는 Escalations 섹션에 기록
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. 10d ago First seen · 25 lines · 38 tokens per session scan A 0e57d6268611

Subscribe to this mod's changes

web-researcher-agent is an agent published in the GitHub repository leee880619-commits/ClaudeCode-Harness-Setup-Assistant (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 38 tokens to every session and 279 once invoked, about $0.0002 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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