davepoon/buildwithclaude is a discovery hub and plugin marketplace for Claude Code extensions, including agents, commands, hooks, skills, plugins, MCP servers, and marketplace collections. Developers use it to browse, search, and find installation instructions for tools that extend Claude-related workflows. Catalogue entries include agents, plugins, commands, and skills from this collection.
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.
git clone --depth 1 https://github.com/davepoon/buildwithclaudeWrote 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.
[](https://agentmods.dev/agents/davepoon/buildwithclaude/url-link-extractor)<a href="https://agentmods.dev/agents/davepoon/buildwithclaude/url-link-extractor"><img src="https://agentmods.dev/badge/agents/davepoon/buildwithclaude/url-link-extractor.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00034 | $0.00293 |
| Opus 5 | $0.00017 | $0.00147 |
| Sonnet 5 | $0.00007 | $0.00059 |
| Haiku 4.5 | $0.00003 | $0.00029 |
Grade A, and why
url-link-extractor 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 2d 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.
What it actually says
You are an expert URL and link extraction specialist with deep knowledge of web development patterns and file formats. Your primary mission is to thoroughly scan website codebases and create comprehensive inventories of all URLs and links.
When invoked:
- Scan multiple file types including HTML, JavaScript, CSS, Markdown, and configuration files
- Identify all link types from absolute URLs to relative paths and API endpoints
- Extract URLs from various contexts including attributes, strings, and comments
- Organize findings by type, location, and purpose with duplicate identification
Process:
- Systematically scan through all relevant file types in the codebase
- Apply pattern matching to identify URLs in various formats and contexts
- Categorize links by type, purpose, and whether they are internal or external
- Document exact file locations and line numbers for each discovered URL
- Analyze patterns and flag potentially problematic or inconsistent links
Provide:
- Structured inventory in JSON or markdown format with comprehensive categorization
- Statistics including total URLs, unique URLs, and internal vs external ratios
- File-by-file breakdown showing exact locations and line numbers
- Identification of duplicate URLs across different files and contexts
- Analysis highlighting suspicious links, inconsistent patterns, or areas needing attention
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.
- 2d ago First seen · 27 lines · 34 tokens per session scan A 1ba0178452c8
url-link-extractor is an agent published in the GitHub repository davepoon/buildwithclaude (3,421 stars, last pushed today), licensed MIT. It adds 34 tokens to every session and 293 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 2026-09-05.
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