deep-research

deep-research is a skill for Claude Code from echoleesong/claude-skills-plugin. It costs 225 tokens per session (6,626 once invoked), scanned A, original, MIT.

A research-agent team for rigorous academic work, including literature reviews, fact-checking, paper reviews, and systematic reviews.

In plain words
What is it for?
Use it to formulate questions, gather and assess research, write reports, fact-check claims, guide research discussions, and optionally perform meta-analysis.
Why use it?
It organizes difficult research into specialized stages instead of relying on one general-purpose pass.

Skill for Claude Code

Written for Claude Code: PreToolUse hook event. Also seen: mentions CLAUDE.md.

Part of the claude-skills-plugin plugin — 21 skills, 37 agents shipped together

Good fit Use it to formulate questions, gather and assess research, write reports, fact-check claims, guide research discussions, and optionally perform meta-analysis.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/echoleesong/claude-skills-plugin/deep-research
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.

Any agent
npx skills add echoleesong/claude-skills-plugin --skill deep-research
Clone the repo
git clone --depth 1 https://github.com/echoleesong/claude-skills-plugin

Made for: Claude Code.

Or install claude-skills-plugin, the plugin that ships this one along with the rest of its 21 skills, 37 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 deep-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/echoleesong/claude-skills-plugin/deep-research/github.svg)](https://agentmods.dev/skills/echoleesong/claude-skills-plugin/deep-research)
Your own site
<a href="https://agentmods.dev/skills/echoleesong/claude-skills-plugin/deep-research"><img src="https://agentmods.dev/badge/skills/echoleesong/claude-skills-plugin/deep-research/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 deep-research

Your own site · 80×15
<a href="https://agentmods.dev/skills/echoleesong/claude-skills-plugin/deep-research"><img src="https://agentmods.dev/badge/skills/echoleesong/claude-skills-plugin/deep-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 225 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,626 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 $0.00225 $0.06626
Opus 5 $0.00112 $0.03313
Sonnet 5 $0.00045 $0.01325
Haiku 4.5 $0.00022 $0.00663

Measured 9d ago against content hash d6fb570724dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

deep-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 9d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/deep-research/SKILL.md · 510 lines

How it starts

The opening of the file, as written. The whole thing — 510 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deep Research — Universal Academic Research Agent Team

Universal deep research tool — a domain-agnostic 13-agent team for rigorous academic research on any topic.

v2.4 adds writing quality improvements to the report compiler:

  • Style Profile consumption (optional) — If a Style Profile is available from academic-paper intake, the report compiler applies it as a soft guide for the Executive Summary and Synthesis sections. Discipline conventions and report objectivity take priority.
  • Writing Quality Check — The report compiler runs a writing quality checklist before finalizing: flags AI-typical overused terms, checks sentence/paragraph length variation, removes throat-clearing openers. See academic-paper/references/writing_quality_check.md.

Routing discipline (v3.9.2): see .claude/CLAUDE.md "Routing Discipline (v3.9.2)" + shared/references/intent_clarification_protocol.md for cross-skill routing rules. This skill assumes routing has already settled — ambiguous cross-phase materials should have been clarified upstream.

Quick Start

Minimal command:

Research the impact of AI on higher education quality assurance

Socratic mode:

Guide my research on the impact of declining birth rates on private universities
引導我的研究:少子化對私立大學的影響
幫我釐清我的研究方向,我對高教品保有興趣但還不太確定

Execution:

  1. Scoping — Research question + methodology blueprint
  2. Investigation — Systematic literature search + source verification
  3. Analysis — Cross-source synthesis + bias check
  4. Composition — Full APA 7.0 report
  5. Review — Editorial + ethics + vulnerability scan
  6. Revision — Final polished report

Trigger Conditions

Trigger Keywords

English: research, deep research, literature review, systematic review, meta-analysis, PRISMA, evidence synthesis, fact-check, methodology, APA report, academic analysis, policy analysis, guide my research, help me think through, monitor this topic, set up alerts

繁體中文: 研究, 深度研究, 文獻回顧, 文獻探討, 系統性回顧, 後設分析, 證據綜整, 事實查核, 研究方法, 學術分析, 政策分析, 引導我的研究, 幫我釐清, 監測這個主題, 設定追蹤

Read the full file on GitHub · 510 lines

Files

What ships with it

49 files 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. 9d ago First seen · 510 lines · 225 tokens per session scan A d6fb570724dc

Subscribe to this mod's changes

deep-research is a skill published in the GitHub repository echoleesong/claude-skills-plugin (4 stars, last pushed 3mo ago), licensed MIT. It adds 225 tokens to every session and 6,626 once invoked, about $0.0011 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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