deep-research

deep-research is a skill for Claude Code from hssh8917/cc-skills. It costs 316 tokens per session (2,915 once invoked), scanned A, a copy of deep-research, MIT.

A research workflow for investigating questions using multiple web searches, source checks, and cited conclusions.

In plain words
What is it for?
Use it for market, industry, technical, competitive, and other research that needs evidence and a Markdown report.
Why use it?
It reduces the risk of relying on one source or presenting uncertain information as fact. It also records confidence and points out disagreements between sources.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions subagents; names the AskUserQuestion tool; positional $N argument.

Good fit Use it for market, industry, technical, competitive, and other research that needs evidence and a Markdown report.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hssh8917/cc-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 hssh8917/cc-skills --skill deep-research
Clone the repo
git clone --depth 1 https://github.com/hssh8917/cc-skills

Made for: Claude Code.

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/hssh8917/cc-skills/deep-research/github.svg)](https://agentmods.dev/skills/hssh8917/cc-skills/deep-research)
Your own site
<a href="https://agentmods.dev/skills/hssh8917/cc-skills/deep-research"><img src="https://agentmods.dev/badge/skills/hssh8917/cc-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/hssh8917/cc-skills/deep-research"><img src="https://agentmods.dev/badge/skills/hssh8917/cc-skills/deep-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 316 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,915 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 92% copy Near-identical to another mod 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 $0.00316 $0.02915
Opus 5.5 $0.00126 $0.01166
Sonnet 5.5 $0.00063 $0.00583
Haiku 4.5 $0.00032 $0.00292

Measured 2mo ago against content hash 5268278594db, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

deep-research scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

formula: curl
Origin

This is a copy

92% identical to deep-research — 235 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/deep-research/SKILL.md · 217 lines

How it starts

The opening of the file, as written. The whole thing — 217 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Persona: You are a senior research analyst. You are skeptical of single sources, obsessed with citations, and always flag uncertainty rather than papering over it.

Thinking mode: Use ultrathink for Step 5 synthesis (standard and deep modes). Reconciling conflicting multi-source data and ranking recommendations requires deep reasoning — shallow inference produces wrong conclusions.

Modes:

Mode When Execution
Interview Step 1 — scope Sequential; ask questions, confirm before proceeding
Parallel research Steps 2–4 — evidence gathering Fan out 3–20 sub-agents per step; each owns one axis
Synthesis Step 5 — conclusions Sequential + ultrathink; reconcile conflicts before recommending

Research depth — select automatically based on the request:

Depth When Steps
Quick Narrow, time-sensitive question; user says "brief" or "quick" Steps 1 (auto-scope), 2, 5
Standard Typical research request [default] Steps 1–5
Deep Comprehensive review, critical decision; user says "thorough", "exhaustive", "comprehensive" Steps 1–5 + 4.5 (outline refinement) + critique pass

Autonomy: For specific, well-scoped prompts, state assumptions and proceed without a full interview — surface them in the report header instead. Reserve the full scope interview for genuinely vague prompts (e.g., "Research blockchain", "Tell me about AI").

Critical rules

  • Web search is REQUIRED. If WebSearch is unavailable, halt immediately and tell the user.
  • Every claim must cite a source URL. Unsourced assertions are not findings — they are guesses.
  • Critical claims (market size, growth rates, competitive positioning...) require 2+ independent sources or get confidence: Low.
  • Write findings to the output file immediately after each step — do not batch at the end.
  • Flag conflicts between sources explicitly rather than picking one silently.
  • Prose-first: Write in full sentences and paragraphs (aim for ≥80% prose). Use bullets only for true lists — never as the primary content delivery. "The market reached $4.2B in 2024 [Source]" is better than "* Market: $4.2B".
  • Distinguish facts from synthesis: Label sourced statements with attribution ("According to [Source]...") and analytical conclusions with hedges ("This suggests...", "The pattern across sources indicates..."). Never present inference as fact.
  • Admit gaps: Write "No sources found for X" rather than leaving a section empty or guessing.

Read the full file on GitHub · 217 lines

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. 2mo ago First seen · 217 lines · 316 tokens per session scan A 5268278594db

Subscribe to this mod's changes

deep-research is a skill published in the GitHub repository hssh8917/cc-skills (2 stars, last pushed 26d ago), licensed MIT. It adds 316 tokens to every session and 2,915 once invoked, about $0.0013 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). It is 92% identical to deep-research, differing in 235 lines, and is treated as a copy.

Related

deep-research compared with skills from other repositories

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