A workflow for saving external content such as bookmarks, YouTube videos, Spotify items, and articles into organized resource folders. It records why the item matters, along with tags and notes.

Use it to capture a URL, classify it by content type, add notes and tags, and save it as a project resource.

It keeps useful references and the context around them from becoming scattered across browser tabs or messages.

How teejayen/arc configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to teejayen/arc. 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/teejayen/arc/main/.claude/commands/capture.md

Clone the repo

git clone --depth 1 https://github.com/teejayen/arc

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/commands/teejayen/arc/capture/github.svg)](https://agentmods.dev/commands/teejayen/arc/capture)

Your own site

<a href="https://agentmods.dev/commands/teejayen/arc/capture"><img src="https://agentmods.dev/badge/commands/teejayen/arc/capture/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/commands/teejayen/arc/capture"><img src="https://agentmods.dev/badge/commands/teejayen/arc/capture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 171 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.

Model	Per session	Once invoked
Fable 5.1	$0.00016	$0.00171
Opus 5.5	$0.00006	$0.00068
Sonnet 5.5	$0.00003	$0.00034
Haiku 4.5	$0.00002	$0.00017

Measured 2mo ago against content hash 15fe744b84ed, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

capture 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/commands/capture.md · 25 lines

What it actually says

Capture external content into the appropriate resources/ subfolder.

Use the capture skill (.claude/skills/capture/SKILL.md) to:

Determine content type from $ARGUMENTS:
- bookmark -> resources/bookmarks/
- youtube -> resources/youtube/
- spotify -> resources/spotify/
- article -> resources/articles/
Gather: URL, why it matters, tags, notes
Create file with frontmatter and context

Examples:

/capture youtube https://youtube.com/... - great explanation of X
/capture bookmark https://... - reference for project
/capture article https://... - interesting 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 · 25 lines · 16 tokens per session scan A 15fe744b84ed

Subscribe to this mod's changes

capture is a command published in the GitHub repository teejayen/arc (5 stars, last pushed 9mo ago), licensed MIT. It adds 16 tokens to every session and 171 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 2026-08-31.

Productivity Research

capture next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
captureteejayen/arc	Command	5	9mo ago	MIT	A	16	Claude Code
wsdanielmiessler/LifeOS	Command	20k	yesterday	MIT	A	0	Claude Code
cancel-ralphanthropics/claude-plugins-official	Command	46k	yesterday	Apache-2.0	A	4	Claude Code
engage.actionshypnguyen1209/offensive-claude	Command	412	15d ago	MIT	A	11	Claude Code
focusData-Wise/claude-plugins	Command	7	yesterday	MIT	A	0	Claude Code
stuckData-Wise/claude-plugins	Command	7	yesterday	MIT	A	0	Claude Code
quickstartorq-ai/assistant-plugins	Command	6	2d ago	MIT	A	23	Claude Code

arc: Command for Claude Code