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 youdotcom-oss/agent-skills --skill you-freegit clone --depth 1 https://github.com/youdotcom-oss/agent-skillsWrote 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/youdotcom-oss/agent-skills/you-free)<a href="https://agentmods.dev/skills/youdotcom-oss/agent-skills/you-free"><img src="https://agentmods.dev/badge/skills/youdotcom-oss/agent-skills/you-free/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/youdotcom-oss/agent-skills/you-free"><img src="https://agentmods.dev/badge/skills/youdotcom-oss/agent-skills/you-free.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Data Exfiltration · line 7 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 22 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 30 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00024 | $0.00632 |
| Opus 5 | $0.00012 | $0.00316 |
| Sonnet 5 | $0.00005 | $0.00126 |
| Haiku 4.5 | $0.00002 | $0.00063 |
Grade A, and why
you-free 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 11d 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.
How it starts
The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You.com Free Search MCP
Use this skill for basic current web search when the task only needs search results and does not require authentication.
Prerequisites
The free You.com MCP server profile must be installed and connected before using this skill:
- Server URL:
https://api.you.com/mcp?profile=free - Auth: none. Do not require
YDC_API_KEYor OAuth. - Required tool:
you-search
If the task needs URL content extraction, cited research synthesis, finance, or livecrawl full-content search, use you-web, you-research, or you-finance instead.
MCP server
Use the You.com free MCP server profile at https://api.you.com/mcp?profile=free.
Required tool:
you-search: find current web sources and snippets.
Before using this skill, check the MCP tools available in the current agent environment:
- If
you-searchis available, use it directly. - If
you-searchis missing, tell the user the You.com free MCP server profile is unavailable, provide the server URL and auth requirement from the prerequisites above, and request approval before installing, connecting, or changing MCP configuration. - The free profile does not require You.com auth via
YDC_API_KEYor OAuth.
If an x402-aware MCP client receives an HTTP 402 with a payment-required header, treat it as a payment challenge, not a tool failure. Let the MCP client handle external payment and retry with Authorization: Payment ..., x-payment, or payment-signature headers when supported.
Do not use livecrawl=web with this skill. Do not use you-contents, you-research, or you-finance.
Tool selection
- Use
you-searchfor simple current lookup, source discovery, and search-result based answers. - If the user provides URLs, asks for synthesized cited research, or needs finance-specific data, this skill cannot satisfy the request. Use the appropriate You.com skill; if that path requires another MCP profile, request approval before installing, connecting, or changing configuration.
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.
- 11d ago First seen · 56 lines · 24 tokens per session scan A 6a9576af15d6
you-free is a skill published in the GitHub repository youdotcom-oss/agent-skills (67 stars, last pushed yesterday), licensed MIT. It adds 24 tokens to every session and 632 once invoked, about $0.0001 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 2026-08-30.
Other skills, from other repositories
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Modify a Unity UnityEngine.Object's serializable fields/properties. Three modification surfaces are available (objectDiff, pathPatches, jsonPatch) — see the skill body. Use 'object-get-data' first to inspect the object structure.
assets-get-data
Get asset data from the asset file in the Unity project — every serializable field and property. Supports token-saving path-scoped reads via paths or viewQuery. Use 'assets-find' to find the asset first.
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Get information about the current Selection in the Unity Editor — active object, active transform, selected GameObjects, transforms, instance IDs, and asset GUIDs (each enrichment is opt-in). Pair with 'editor-selection-set' to change the selection.
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object-get-data
Get serialized data for a Unity UnityEngine.Object — all serializable fields and properties. Supports token-saving path-scoped reads via paths or viewQuery. Pair with 'object-modify' when you need to write back.
unity-skill-create
Create a new skill (MCP tool) for the Unity Editor by writing a C# (.cs) file that Unity compiles into the project. After compilation the new tool becomes callable through MCP. The file must be a partial class decorated with [AiToolType], each tool method must be decorated with [AiTool], the class name should match…