deep-research

deep-research is a skill for Claude Code, Codex from lfyxhappy/lfcode. It costs 56 tokens per session (367 once invoked), scanned A, original, MIT.

A structured investigation that uses current online sources to answer broad, detailed, or time-sensitive questions. It compares evidence from authoritative sources and records the sources behind important claims.

In plain words
What is it for?
Use it for technology scouting, comparisons, market or policy analysis, and other deep investigations. It helps gather primary evidence, verify claims, and summarize findings with links and a stated time scope.
Why use it?
Single-source searches can miss conflicting information, outdated facts, or important context. This process separates research lines, checks disagreements, and produces an evidence-backed brief.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for technology scouting, comparisons, market or policy analysis, and other deep investigations. It helps gather primary evidence, verify claims, and summarize findings with links and a stated time scope.

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

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/lfyxhappy/lfcode/deep-research/github.svg)](https://agentmods.dev/skills/lfyxhappy/lfcode/deep-research)
Your own site
<a href="https://agentmods.dev/skills/lfyxhappy/lfcode/deep-research"><img src="https://agentmods.dev/badge/skills/lfyxhappy/lfcode/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/lfyxhappy/lfcode/deep-research"><img src="https://agentmods.dev/badge/skills/lfyxhappy/lfcode/deep-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 367 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 $0.00056 $0.00367
Opus 5.5 $0.00022 $0.00147
Sonnet 5.5 $0.00011 $0.00073
Haiku 4.5 $0.00006 $0.00037

Measured 1mo ago against content hash e88c48b44c30, 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 1mo 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.

packages/lfcode/src/skill/lfcode/.bundle/deep-research/SKILL.md · 23 lines

What it actually says

Deep Research

Run this as a background research coordination task. Use local project files only to clarify the user's context; the primary evidence must come from current online sources and the project's research cache.

Method

  1. Select quick for a narrow factual question, standard for a comparison or decision, and deep for a broad, high-stakes, or time-sensitive investigation.
  2. Split standard or deep research into at most three independent lines: primary evidence, complementary evidence, and a contrarian or verification pass. The coordinator must issue the actor.spawn calls before replying with any plan, then use actor.wait and synthesize the returned evidence. Delegate only to the read-only researcher Agent in background mode. Do not let delegated researchers dispatch further Agents.
  3. Prefer official, primary, institutional, and recent sources. Reuse cached evidence when still relevant, fetch authoritative pages when needed, and record URLs for every material claim.
  4. Cross-check important claims, numbers, dates, quotations, and causal conclusions. Treat a source disagreement as a finding, not an error to hide.
  5. Return a concise report with scope and cutoff time, findings labeled as facts or inferences, source citations, confidence/caveats, and unresolved questions.

Boundaries

  • Do not claim to have browsed, verified, or cited material that is unavailable.
  • Do not use local code or documents as a substitute for required external evidence.
  • Do not edit project files, access restricted sources, collect sensitive personal data, or publish results externally.
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. 1mo ago First seen · 23 lines · 56 tokens per session scan A e88c48b44c30

Subscribe to this mod's changes

deep-research is a skill published in the GitHub repository lfyxhappy/lfcode (2 stars, last pushed 26d ago), licensed MIT. It adds 56 tokens to every session and 367 once invoked, about $0.0002 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 2026-09-05.