agents-at-scale-ark: Skill for Claude Code

.claude/skills/research/SKILL.md

ark-research is a skill for Claude Code from mckinsey/agents-at-scale-ark. It costs 30 tokens per session (582 once invoked), scanned A, original, Apache-2.0.

A workflow for researching technical solutions using web searches, GitHub repositories, documentation, tutorials, specifications, and local notes. It focuses on collecting evidence before choosing an implementation approach.

In plain words
What is it for?
Use it to compare implementation options, inspect how other projects work, and record findings for later development.
Why use it?
It reduces the risk of choosing a technology or design based on incomplete information.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is mckinsey/agents-at-scale-ark's own configuration. It tells Claude Code how to work on agents-at-scale-ark itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything agents-at-scale-ark configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is mkdir -p ./scratch/research.

Reuse

Borrowing it

Nothing to install: this file belongs to mckinsey/agents-at-scale-ark. 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/mckinsey/agents-at-scale-ark/main/.claude/skills/research/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/mckinsey/agents-at-scale-ark

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 ark-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/mckinsey/agents-at-scale-ark/research/github.svg)](https://agentmods.dev/skills/mckinsey/agents-at-scale-ark/research)
Your own site
<a href="https://agentmods.dev/skills/mckinsey/agents-at-scale-ark/research"><img src="https://agentmods.dev/badge/skills/mckinsey/agents-at-scale-ark/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 ark-research

Your own site · 80×15
<a href="https://agentmods.dev/skills/mckinsey/agents-at-scale-ark/research"><img src="https://agentmods.dev/badge/skills/mckinsey/agents-at-scale-ark/research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 582 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00030 $0.00582
Opus 5 $0.00015 $0.00291
Sonnet 5 $0.00006 $0.00116
Haiku 4.5 $0.00003 $0.00058

Measured 8d ago against content hash a31294b6dfea, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

ark-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 8d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • research — 86% identical, 8 lines differ
.claude/skills/research/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Ark Research

Research technical solutions and gather evidence before implementation.

Research Process

1. Web Search First

Always start with web search to find:

  • Official documentation
  • GitHub repositories
  • Blog posts and tutorials
  • Protocol specifications (PDFs, RFCs)

2. Examine GitHub Repositories

GitHub raw content is often blocked. Clone repos to examine them:

cd /tmp
git clone https://github.com/owner/repo.git
cat /tmp/repo/README.md

Look for:

  • README documentation
  • Code examples
  • Architecture patterns
  • Dependencies and requirements

3. Handle Blocked Content

If a website cannot be loaded:

  • Ask the user to paste the relevant content
  • Request PDFs or specification documents
  • Ask for screenshots if visual content is needed

Example prompt:

"I found a relevant resource at [URL] but cannot access it. Could you paste the key content or provide the PDF?"

4. Local Research Workspace

Store findings in ./scratch/research/ for review:

mkdir -p ./scratch/research

Save:

  • Cloned repo summaries
  • Code snippets
  • Architecture diagrams
  • Comparison notes

5. Evidence Requirements

Minimum 2-3 datapoints required before recommending a solution:

  • GitHub repo with active maintenance
  • Documentation or specification
  • Real-world usage examples
  • Community feedback (issues, discussions)

If insufficient evidence, ask for guidance:

"I found only one reference to this approach. Can you point me to additional resources or clarify the requirements?"

Output Format

Always back up findings with sources:

## Research: [Topic]

### Option 1: [Solution Name]
- **Source**: [URL or repo link]
- **Pros**: ...
- **Cons**: ...
- **Evidence**: [What confirms this works]

### Option 2: [Solution Name]
...

### Recommendation
Based on [N] sources, I recommend [Option] because...

### Sources
- [Title](URL)
- [Repo](GitHub URL) - cloned and examined
- [Spec](URL) - user provided

Example Usage

Read the full file on GitHub · 105 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. 8d ago First seen · 105 lines · 30 tokens per session scan A a31294b6dfea

Subscribe to this mod's changes

ark-research is a skill published in the GitHub repository mckinsey/agents-at-scale-ark (423 stars, last pushed today), licensed Apache-2.0. It adds 30 tokens to every session and 582 once invoked, about $0.0002 per session on Opus 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 2026-09-03.

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