deep-research

deep-research is a skill for Claude Code from ericgandrade/claude-superskills. It costs 44 tokens per session (5,774 once invoked), scanned A, original, MIT.

A research workflow for multi-step web investigations that combines sources and evaluates how strong the evidence is.

In plain words
What is it for?
Use it for market research, competitor reviews, literature reviews, technical due diligence, and decision documents supported by sources.
Why use it?
It helps when a question requires more than one search result and the findings need citations, comparison, and explicit uncertainty.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents; mentions Codex.

Part of the claude-superskills plugin — 18 skills shipped together

Good fit Use it for market research, competitor reviews, literature reviews, technical due diligence, and decision documents supported by sources.

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

Made for: Claude Code.

Or install claude-superskills, the plugin that ships this one along with the rest of its 18 skills.

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/ericgandrade/claude-superskills/deep-research/github.svg)](https://agentmods.dev/skills/ericgandrade/claude-superskills/deep-research)
Your own site
<a href="https://agentmods.dev/skills/ericgandrade/claude-superskills/deep-research"><img src="https://agentmods.dev/badge/skills/ericgandrade/claude-superskills/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/ericgandrade/claude-superskills/deep-research"><img src="https://agentmods.dev/badge/skills/ericgandrade/claude-superskills/deep-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,774 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 $0.00044 $0.05774
Opus 5 $0.00022 $0.02887
Sonnet 5 $0.00009 $0.01155
Haiku 4.5 $0.00004 $0.00577

Measured 11d ago against content hash cb4c7dfb1780, 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 11d 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.

skills/deep-research/SKILL.md · 578 lines

How it starts

The opening of the file, as written. The whole thing — 578 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deep Research

Purpose

Run structured, multi-step web research with evidence-first synthesis, source traceability, skeptical evaluation, and explicit confidence/gap analysis.

This skill works in native mode with built-in web research tools and does not require Google/Gemini, OpenAI, Anthropic, OpenRouter, or any other paid provider setup. When the user explicitly wants maximum depth, use dense/frontier mode to recommend the strongest available model and run a wider parallel research topology where the host platform supports subagents.

When to Use This Skill

Use this skill when:

  • Performing market analysis
  • Conducting competitive landscaping
  • Building literature or source reviews
  • Doing technical due diligence
  • Preparing decision memos with citations
  • Producing dense, high-confidence, Perplexity-like research with adversarial critique

Requirements

  • Access to built-in web research tools (WebSearch, WebFetch)
  • Clear research question and scope

No external API key is required for native mode.

Progress Tracking

Display a progress gauge at each research phase:

[████░░░░░░░░░░░░░░░░] 20% — Phase 1/5: Objective, Scope & Decomposition
[████████░░░░░░░░░░░░] 40% — Phase 2/5: Parallel Source Collection
[████████████░░░░░░░░] 60% — Phase 3/5: Evidence Ledger & Triangulation
[████████████████░░░░] 80% — Phase 4/5: Synthesis & Confidence/Gaps
[████████████████████] 100% — Phase 5/5: Citation Audit & Final Review

Operating Modes

Native Research

Use native mode by default.

  • Use built-in WebSearch and WebFetch.
  • Decompose complex topics into 3-5 sub-questions.
  • Run parallel ResearchScout agents where subagents are available.
  • Produce an evidence ledger, citations, and Confidence & Gaps.

Dense / Frontier Research

Use dense/frontier mode when the user asks for maximum depth, exhaustive research, "frontier model", "Perplexity-like" research, "turbinado", adversarial review, high-confidence evidence, or says cost is secondary to research quality.

Read the full file on GitHub · 578 lines

Files

What ships with it

6 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. 11d ago First seen · 578 lines · 44 tokens per session scan A cb4c7dfb1780

Subscribe to this mod's changes

deep-research is a skill published in the GitHub repository ericgandrade/claude-superskills (75 stars, last pushed 4mo ago), licensed MIT. It adds 44 tokens to every session and 5,774 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 2026-08-30.

Related

Other skills, from other repositories

writing-fragments

Grilling session that mines the user for fragments — heterogeneous nuggets of writing (claims, vignettes, sharp sentences, half-thoughts) — and appends them to a single document as raw material for a future article. Use when the user wants to develop ideas before imposing structure, or mentions "fragments", "ideate"…

stevesolun/ctx · 80 tokens

obsidian-vault

Search, create, and manage notes in the Obsidian vault with wikilinks and index notes. Use when user wants to find, create, or organize notes in Obsidian.

stevesolun/ctx · 43 tokens

no-mistakes

Validate committed feature-branch changes through the no-mistakes pipeline: intent, rebase, review, test, docs, lint, push, PR, and CI. Use when the user asks to run no-mistakes, ship safely, validate before pushing, or gate a change before it reaches upstream.

stevesolun/ctx · 67 tokens

continuous-learning-v2

Instinct-based learning system that observes sessions via hooks, creates atomic instincts with confidence scoring, and evolves them into skills/commands/agents.

sangrokjung/claude-forge · 33 tokens

review

Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes — Standards (does the code follow this repo's documented coding standards?) and Spec (does the code match what the originating issue/PRD asked for?). Runs both reviews in parallel sub-agents and reports them side by side. Use…

stevesolun/ctx · 95 tokens

writing-shape

Take a markdown file of raw material and shape it into an article through a conversational session — drafting candidate openings, growing the piece paragraph by paragraph, arguing about format (lists, tables, callouts, quotes) at each step. Use when the user has a pile of notes, fragments, or a rough draft and wants…

stevesolun/ctx · 76 tokens