A workflow for saving links and other outside material, such as articles, videos, bookmarks, or music, in a reference library with notes about why they matter.

It helps record a source URL, identify its type, add tags and notes, and store it in a suitable resources folder.

It keeps useful material and its context from getting scattered across browser tabs, chats, and services.

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

Your own site

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

Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 446 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	$0.00042	$0.00446
Opus 5.5	$0.00017	$0.00178
Sonnet 5.5	$0.00008	$0.00089
Haiku 4.5	$0.00004	$0.00045

Measured 2mo ago against content hash c361c09b96cf, 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/skills/capture/SKILL.md · 77 lines

What it actually says

Capture

Save external content (bookmarks, YouTube, Spotify, articles) with context.

When to Use

User shares a link worth saving
External content needs to be captured with context
Building a reference library of resources

Execution Steps

Step 1: Determine content type

From context or ask:

bookmark -> resources/bookmarks/
youtube -> resources/youtube/
spotify -> resources/spotify/
article -> resources/articles/
other -> resources/ root or create new subfolder

Step 2: Gather details

If not provided, ask for:

URL or identifier
Why this matters / why saving it (this is the valuable context)
Tags or topics it relates to
Any specific notes

Step 3: Create capture file

Filename: descriptive-title.md (no date prefix - frontmatter has timestamp)

---
title: "[Content title]"
created: YYYY-MM-DD
source: [full URL]
platform: [youtube|spotify|web|twitter|podcast|etc]
tags: [topic, topic]
status: unprocessed
---

# [Content title]

**Source:** [URL]
**Captured:** YYYY-MM-DD

## Why I Saved This
[User's reason - the context that will matter when rediscovering this later]

## Summary
[Brief description of what this is]

## Key Points
[If applicable - remove if just a bookmark for later]
- Point 1
- Point 2

## Notes
[Additional context, quotes, timestamps for videos, etc.]

## Related
- [[relevant-notes]]

Step 4: Confirm

Show saved location
Suggest related areas/projects to link
Note if this connects to current focus areas

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 · 77 lines · 42 tokens per session scan A c361c09b96cf

Subscribe to this mod's changes

capture is a skill published in the GitHub repository teejayen/arc (5 stars, last pushed 9mo ago), licensed MIT. It adds 42 tokens to every session and 446 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 2026-08-31.

Research

capture next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
captureteejayen/arc	Skill	5	9mo ago	MIT	A	42	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	yesterday	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	103	Claude Code

arc: Skill for Claude Code