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.
npx skills add samttoo22-MewCat/OpenSoul --skill xurlgit clone --depth 1 https://github.com/samttoo22-MewCat/OpenSoulWrote 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/skills/samttoo22-mewcat/opensoul/xurl)<a href="https://agentmods.dev/skills/samttoo22-mewcat/opensoul/xurl"><img src="https://agentmods.dev/badge/skills/samttoo22-mewcat/opensoul/xurl/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.
<a href="https://agentmods.dev/skills/samttoo22-mewcat/opensoul/xurl"><img src="https://agentmods.dev/badge/skills/samttoo22-mewcat/opensoul/xurl.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00000 | $0.03494 |
| Opus 5 | $0.00000 | $0.01747 |
| Sonnet 5 | $0.00000 | $0.00699 |
| Haiku 4.5 | $0.00000 | $0.00349 |
Grade C, and why
xurl scanned grade C with 2 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 7d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
curl -fsSL https://raw.githubusercontent.com/xdevplatform/xurl/main/install.sh | bash Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
`xurl` is a CLI tool for the X API. It supports both **shortcut commands** (human/agent‑friendly one‑liners) and **raw curl‑style** access to any v2 endpoint. All commands return JSON to stdout. This is a copy
83% identical to xurl — 78 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 442 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Real-time Data & Honesty Guidelines
When the user asks for dynamic information that updates frequently:
- Mandatory Fetching: You MUST use this tool (or a browser tool) to get real-time data for:
- Stock / Crypto prices and market trends.
- Today's news or recent events.
- Current local weather.
- Anti-Hallucination: NEVER use your internal training data to "guess" or "simulate" current market prices or news. This is considered deception.
- Disclosure: If you cannot access the real-time data for any reason, honestly state: "I cannot see the current data right now, can you provide it?" instead of providing outdated or fabricated information.
xurl — Agent Skill Reference
xurl is a CLI tool for the X API. It supports both shortcut commands (human/agent‑friendly one‑liners) and raw curl‑style access to any v2 endpoint. All commands return JSON to stdout.
Installation
Homebrew (macOS)
brew install --cask xdevplatform/tap/xurl
npm
npm install -g @xdevplatform/xurl
Shell script
curl -fsSL https://raw.githubusercontent.com/xdevplatform/xurl/main/install.sh | bash
Installs to ~/.local/bin. If it's not in your PATH, the script will tell you what to add.
Go
go install github.com/xdevplatform/xurl@latest
Prerequisites
This skill requires the xurl CLI utility: https://github.com/xdevplatform/xurl.
Before using any command you must be authenticated. Run xurl auth status to check.
Secret Safety (Mandatory)
- Never read, print, parse, summarize, upload, or send
~/.xurl(or copies of it) to the LLM context. - Never ask the user to paste credentials/tokens into chat.
- The user must fill
~/.xurlwith required secrets manually on their own machine. - Do not recommend or execute auth commands with inline secrets in agent/LLM sessions.
- Warn that using CLI secret options in agent sessions can leak credentials (prompt/context, logs, shell history).
- Never use
--verbose/-vin agent/LLM sessions; it can expose sensitive headers/tokens in output. - Sensitive flags that must never be used in agent commands:
--bearer-token,--consumer-key,--consumer-secret,--access-token,--token-secret,--client-id,--client-secret. - To verify whether at least one app with credentials is already registered, run:
xurl auth status.
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.
- 7d ago First seen · 442 lines · 0 tokens per session scan C 5fcf76d3bc2e
xurl is a skill published in the GitHub repository samttoo22-MewCat/OpenSoul (19 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,494 tokens. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). It is 83% identical to xurl, differing in 78 lines, and is treated as a copy.
Other skills, from other repositories
Discord Integration
Send messages to Discord channels via webhook or bot.
twitter-writer
Write X/Twitter posts, tweet drafts, shitposts, and short threads for engineering or startup topics. Use this when the user asks for a tweet, X post, shitpost, post draft, or wants social copy for Twitter/X. Always return 3 distinct variants, each inside its own code block, unless the user explicitly asks for one.
obsidian-pro
Advanced Obsidian knowledge management using callouts, properties, and wikilinks. Aligned with the Gold Standard.
Weather
Get current weather and forecasts using wttr.in (no API key needed).
vault-memory
Treat the Obsidian vault as operational memory, not just note storage. Focus on retrieval quality, metadata integrity, and safe consolidation.
Logging
Where logs live and when to write them — errors, daily, system.