deep-research

deep-research is a skill for Claude Code, Codex from comisai/comis. It costs 117 tokens per session (1,795 once invoked), scanned A, original, Apache-2.0.

A method for researching a subject through several angles and sources before explaining it. It is intended for detailed research rather than a short answer based only on general knowledge.

In plain words
What is it for?
Use it when a request needs thorough background research, comparisons, current information, or source checking. The description says it uses web searches and fetched web pages, but gives no more specific capabilities.
Why use it?
It reduces the risk of relying on one source or unsupported assumptions. The available description does not specify a particular subject area or final output format.

Skill for Claude CodeCodex

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

Good fit Use it when a request needs thorough background research, comparisons, current information, or source checking. The description says it uses web searches and fetched web pages, but gives no more specific capabilities.

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

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/comisai/comis/deep-research/github.svg)](https://agentmods.dev/skills/comisai/comis/deep-research)
Your own site
<a href="https://agentmods.dev/skills/comisai/comis/deep-research"><img src="https://agentmods.dev/badge/skills/comisai/comis/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/comisai/comis/deep-research"><img src="https://agentmods.dev/badge/skills/comisai/comis/deep-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 117 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,795 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 $0.00117 $0.01795
Opus 5.5 $0.00047 $0.00718
Sonnet 5.5 $0.00023 $0.00359
Haiku 4.5 $0.00012 $0.00179

Measured 1mo ago against content hash f688eccbedb5, 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/daemon/bundled-skills/deep-research/SKILL.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deep Research

Systematic methodology for thorough web research. Load this skill BEFORE starting any content generation task to gather sufficient information from multiple angles, depths, and sources.

Core Principle

Never generate content based solely on general knowledge. The quality of output depends directly on research quality. A single search query is never enough.

For context-dependent follow-ups about attribution, failed sources, or compression, re-fetch every candidate citation from the existing research before using it in the new answer and preserve the user's requested format. If the user says a source is down but no failed receipt identifies one, do not invent an unavailable URL; report only failures observed during re-fetch.

Before answering, obtain at least three distinct successful web_search query receipts covering different research angles and at least three distinct successful web_fetch receipts from three different URLs. If fewer than three successful query receipts or source receipts can be obtained, label the result partial or incomplete, name each unavailable source or capability blocker, and do not fill the evidence gap from memory.

Build a receipt ledger keyed by canonical URL before writing. Re-fetching the same URL does not count as another source, even when the options or returned length differ. Continue fetching until the ledger has three unique successful URLs; otherwise abstain from a substantive answer and return only the incomplete-research status.

Every factual paragraph or claim cluster in the answer must carry an inline citation to one or more fetched URLs that support it. Omit any statement the fetched sources do not support. On every failed source fetch, name the failed URL in an Unavailable sources note with its error; never cite or use that source as evidence.

Every URL presented as a citation must have a successful web_fetch receipt from the current research run. A web_search result or snippet is discovery evidence, not citation evidence. Fetch a discovered source before citing it; if the fetch fails, omit it from citations and name it separately as an attempted but unavailable source.

Read the full file on GitHub · 159 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. 1mo ago First seen · 159 lines · 117 tokens per session scan A f688eccbedb5

Subscribe to this mod's changes

deep-research is a skill published in the GitHub repository comisai/comis (5 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 117 tokens to every session and 1,795 once invoked, about $0.0005 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 2026-08-31.