# Deep Research

Use when a question needs current multi-source research, multi-angle investigation, or...

- Repository: https://github.com/cubeplexai/cubeplex (574 stars)
- Category: Writing
- License: see repository
- Last updated: 2026-11-01
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add cubeplexai/cubeplex --skill deep-research -g -a claude-code -y`
Codex: `npx skills add cubeplexai/cubeplex --skill deep-research -g -a codex -y`
Cursor: `npx skills add cubeplexai/cubeplex --skill deep-research -g -a cursor -y`
Gemini CLI: `npx skills add cubeplexai/cubeplex --skill deep-research -g -a gemini-cli -y`

## Description

Use when a question needs current multi-source research, multi-angle investigation, or iterative verification before producing a report or detailed answer

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Deep Research

Use a supervisor-subagent loop when one question needs current evidence from
multiple sources, competing explanations, or iterative verification. The main
agent owns the question, verification map, dependencies, review, and synthesis.
Subagents answer narrow questions; they do not manage the plan or write the final
report.

Use direct search for a quick fact with one clear source. Use `wide-research`
when breadth is the hard part and the primary output is a comprehensive list or
dataset.

## Non-negotiable invariants

1. Ground the question before planning or fan-out.
2. Build a verification map and identify dependencies before dispatch.
3. Run only independent tasks in the same wave.
4. Review and consolidate one wave before designing the next.
5. Preserve claim-level evidence, counter-evidence, gaps, and conflicts.
6. Synthesize only from the reviewed evidence set; mark inference and uncertainty.

## 1. Ground the question

Use the smallest useful reconnaissance action to understand the topic, source
landscape, and ambiguity. If the request is time-sensitive, anchor the current
date and relevant period before research, then include that context in later
subagent briefs. Do not call the date tool for timeless conceptual questions.

Clarify only a missing choice that materially changes the research question,
comparison, time range, evidence standard, or deliverable. Otherwise state a
reasonable assumption and proceed.

Classify the task:

- **verification:** test one claim and seek counter-evidence
- **comparison:** evaluate shared criteria across named subjects
- **explanation:** establish mechanisms, chronology, and competing accounts
- **comprehensive investigation:** combine several dependent verification points

## 2. Build the verification and dependency map

Before substantial fan-out, record:

The rest: https://github.com/cubeplexai/cubeplex/blob/HEAD/backend/skills/preinstalled/deep-research/SKILL.md