What is deep-research?

A codebase investigation procedure for researching a feature, bug, or implementation pattern. It searches files, follows related code paths, and reports findings with file and line references.

Use it for thorough repository research, including finding relevant files, tracing connected code, and producing a structured summary of the results.

It provides a repeatable way to understand how a behavior is implemented across a repository.

How j4flmao/agent-skills configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to j4flmao/agent-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/j4flmao/agent-skills/main/.claude/skills/deep-research/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/j4flmao/agent-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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/j4flmao/agent-skills/deep-research/github.svg)](https://agentmods.dev/skills/j4flmao/agent-skills/deep-research)

Your own site

<a href="https://agentmods.dev/skills/j4flmao/agent-skills/deep-research"><img src="https://agentmods.dev/badge/skills/j4flmao/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/j4flmao/agent-skills/deep-research"><img src="https://agentmods.dev/badge/skills/j4flmao/agent-skills/deep-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 142 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.

Model	Per session	Once invoked
Fable 5.1	$0.00029	$0.00142
Opus 5.5	$0.00012	$0.00057
Sonnet 5.5	$0.00006	$0.00028
Haiku 4.5	$0.00003	$0.00014

Measured 2mo ago against content hash 94b02b2ae02d, 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 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 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.

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.

.claude/skills/deep-research/SKILL.md · 29 lines

What it actually says

Task

Research $ARGUMENTS thoroughly.

Find relevant files using Glob and Grep
Read and analyze the code
Trace all related code paths
Summarize findings with specific file:line references

Response Format

## Summary
[2-3 sentence overview]

## Key Files
- path/to/file.ext:line — what it does

## Findings
[detailed analysis]

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.

2mo ago First seen · 29 lines · 29 tokens per session scan A 94b02b2ae02d

Subscribe to this mod's changes

deep-research is a skill published in the GitHub repository j4flmao/agent-skills (38 stars, last pushed 3d ago), licensed MIT. It adds 29 tokens to every session and 142 once invoked, about $0.0001 per session on Opus 5.5. 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.

Research

deep-research next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
deep-researchj4flmao/agent-skills	Skill	38	3d ago	MIT	A	29	Claude Code
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	today	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	today	MIT	A	103	Claude Code

agent-skills: Skill for Claude Code