deep-research

deep-research is a skill for Claude Code, Codex from insight68/Skills. It costs 88 tokens per session (8,103 once invoked), scanned C, a copy of deep-research, MIT.

A structured method for carrying out research using multiple sources, tracked citations, and claim verification. It combines retrieved information into a checked research report.

In plain words
What is it for?
Use it for comprehensive analyses, research reports, and comparisons that require many verified sources. Simple lookups and ordinary debugging are outside its stated use.
Why use it?
It helps with complex questions where one search result is not enough. It reduces the risk of relying on unsupported claims or overlooking conflicting evidence.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; positional $N argument; mentions Claude Code.

Good fit Use it for comprehensive analyses, research reports, and comparisons that require many verified sources. Simple lookups and ordinary debugging are outside its stated use.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/insight68/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 insight68/Skills --skill deep-research
Clone the repo
git clone --depth 1 https://github.com/insight68/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/insight68/skills/deep-research.svg)](https://agentmods.dev/skills/insight68/skills/deep-research)
Your own site
<a href="https://agentmods.dev/skills/insight68/skills/deep-research"><img src="https://agentmods.dev/badge/skills/insight68/skills/deep-research.svg" alt="Measured on agentmods" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,103 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% 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 $0.00088 $0.08103
Opus 5 $0.00044 $0.04052
Sonnet 5 $0.00018 $0.01621
Haiku 4.5 $0.00009 $0.00810

Measured 7d ago against content hash af533b36012a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade C, and why

deep-research scanned grade C 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 7d ago.

The scan reads SKILL.md. This mod also ships 7 executable files (scripts/citation_manager.py, scripts/md_to_html.py, scripts/research_engine.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- All static instructions, methodology, and templates below this line -->
Origin

This is a copy

100% identical to deep-research — 0 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 · 857 lines

How it starts

The opening of the file, as written. The whole thing — 857 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deep Research

Core System Instructions

Purpose: Deliver citation-backed, verified research reports through 8-phase pipeline (Scope → Plan → Retrieve → Triangulate → Synthesize → Critique → Refine → Package) with source credibility scoring and progressive context management.

Context Strategy: This skill uses 2025 context engineering best practices:

  • Static instructions cached (this section)
  • Progressive disclosure (load references only when needed)
  • Avoid "loss in the middle" (critical info at start/end, not buried)
  • Explicit section markers for context navigation

Decision Tree (Execute First)

Request Analysis
├─ Simple lookup? → STOP: Use WebSearch, not this skill
├─ Debugging? → STOP: Use standard tools, not this skill
└─ Complex analysis needed? → CONTINUE

Mode Selection
├─ Initial exploration? → quick (3 phases, 2-5 min)
├─ Standard research? → standard (6 phases, 5-10 min) [DEFAULT]
├─ Critical decision? → deep (8 phases, 10-20 min)
└─ Comprehensive review? → ultradeep (8+ phases, 20-45 min)

Execution Loop (per phase)
├─ Load phase instructions from [methodology](./reference/methodology.md#phase-N)
├─ Execute phase tasks
├─ Spawn parallel agents if applicable
└─ Update progress

Validation Gate
├─ Run `python scripts/validate_report.py --report [path]`
├─ Pass? → Deliver
└─ Fail? → Fix (max 2 attempts) → Still fails? → Escalate

Workflow (Clarify → Plan → Act → Verify → Report)

AUTONOMY PRINCIPLE: This skill operates independently. Infer assumptions from query context. Only stop for critical errors or incomprehensible queries.

1. Clarify (Rarely Needed - Prefer Autonomy)

DEFAULT: Proceed autonomously. Derive assumptions from query signals.

ONLY ask if CRITICALLY ambiguous:

  • Query is incomprehensible (e.g., "research the thing")
  • Contradictory requirements (e.g., "quick 50-source ultradeep analysis")

Read the full file on GitHub · 857 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. 7d ago First seen · 857 lines · 88 tokens per session scan C af533b36012a

Subscribe to this mod's changes

deep-research is a skill published in the GitHub repository insight68/Skills (5 stars, last pushed 5mo ago), licensed MIT. It adds 88 tokens to every session and 8,103 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). It is 100% identical to deep-research, differing in 0 lines, and is treated as a copy.

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