deep-research

deep-research is a skill for Claude Code, Codex from moonlight-lupin/agent-skills. It costs 147 tokens per session (8,037 once invoked), scanned A, original, MIT.

A guided research workflow that repeatedly searches for information, extracts evidence, checks what is still missing, and combines the findings into a cited report.

In plain words
What is it for?
Conducting multi-step research, comparing sources, recording structured evidence, identifying contradictions and gaps, and producing reports with inline citations.
Why use it?
It helps with questions that need more than one search by organizing evidence, source quality, disagreements, and unanswered points.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Conducting multi-step research, comparing sources, recording structured evidence, identifying contradictions and gaps, and producing reports with inline citations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/moonlight-lupin/agent-skills/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 moonlight-lupin/agent-skills --skill deep-research
Clone the repo
git clone --depth 1 https://github.com/moonlight-lupin/agent-skills

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 deep-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/moonlight-lupin/agent-skills/deep-research/github.svg)](https://agentmods.dev/skills/moonlight-lupin/agent-skills/deep-research)
Your own site
<a href="https://agentmods.dev/skills/moonlight-lupin/agent-skills/deep-research"><img src="https://agentmods.dev/badge/skills/moonlight-lupin/agent-skills/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/moonlight-lupin/agent-skills/deep-research"><img src="https://agentmods.dev/badge/skills/moonlight-lupin/agent-skills/deep-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 147 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,037 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00147 $0.08037
Opus 5 $0.00073 $0.04019
Sonnet 5 $0.00029 $0.01607
Haiku 4.5 $0.00015 $0.00804

Measured 10d ago against content hash 6e695dbbca63, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, 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 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.

research/deep-research/SKILL.md · 513 lines

How it starts

The opening of the file, as written. The whole thing — 513 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deep Research — Iterative Research Engine

An autonomous, multi-step research engine that performs exhaustive information gathering and synthesis. Unlike a single web_search, this skill implements an iterative loop where the agent plans, searches, extracts, synthesizes, and decides when to stop — producing a cited report with structured evidence, source quality tiers, and explicit gaps/contradictions sections.

Inspired by PewDiePie's Odysseus project, Alibaba/Tongyi's IterResearch approach, and the sn-deep-research evidence-structuring architecture (OpenSenseNova/SenseNova-Skills, MIT). The full 9-role sn pipeline was evaluated and intentionally NOT adopted — only the evidence.json layer and refute-polarity requirement were ported, based on empirical side-by-side testing (July 2026). See references/structured-evidence-format.md.

v1.2.0 changes (July 2026): overview-first report structure (comparison table right after executive summary), language anchoring (BCP 47), structured evidence step (3e), refute polarity requirement, source quality classification, explicit contradictions + gaps sections. Architecture diagram corrected.

v1.3.0 changes (July 2026): source quality ranking and weighting — primary (3×) > secondary (2×) > tertiary (1×). Conflict resolution by quality tier. Quality distribution check (healthy/acceptable/weak) before writing. Tertiary source overreliance pitfall. Source table now shows quality distribution summary. Prompted by user noting too many tertiary sources in the self-hosting vs API report.

v1.5.0 changes (July 2026): adaptive depth (complexity-based round caps), optional clarification phase (Step 0), token budget awareness, numbered citations, progressive empty-search refinement, explicit synthesis prompt structure. Concepts adapted from DocsGPT's ResearchAgent (arc53/DocsGPT, MIT). See references/docsgpt-concepts.md for the concept mapping.

When to use

  • User asks for "deep research", "research report", "comprehensive analysis"
  • User wants a written report on a topic (not just a quick answer)
  • Question requires multi-source synthesis with citations
  • User says "look into X in depth" or "write a report on X"

Read the full file on GitHub · 513 lines

Files

What ships with it

5 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. 10d ago First seen · 513 lines · 147 tokens per session scan A 6e695dbbca63

Subscribe to this mod's changes

deep-research is a skill published in the GitHub repository moonlight-lupin/agent-skills (60 stars, last pushed 3d ago), licensed MIT. It adds 147 tokens to every session and 8,037 once invoked, about $0.0007 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 2026-08-30.