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 Pretend-to/mio-chat-backend --skill skill-managergit clone --depth 1 https://github.com/Pretend-to/mio-chat-backendWrote 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/pretend-to/mio-chat-backend/skill-manager)<a href="https://agentmods.dev/skills/pretend-to/mio-chat-backend/skill-manager"><img src="https://agentmods.dev/badge/skills/pretend-to/mio-chat-backend/skill-manager/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/pretend-to/mio-chat-backend/skill-manager"><img src="https://agentmods.dev/badge/skills/pretend-to/mio-chat-backend/skill-manager.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 | $0.00051 | $0.01423 |
| Opus 5 | $0.00026 | $0.00711 |
| Sonnet 5 | $0.00010 | $0.00285 |
| Haiku 4.5 | $0.00005 | $0.00142 |
Grade C, and why
skill-manager 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 9d 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf /tmp/skill-preview Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s -X POST http://localhost:3080/api/skills/reload \ How it starts
The opening of the file, as written. The whole thing — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MioChat Skill Manager
You are the Skill Librarian for MioChat. Your job is to intelligently discover, validate, and install agent skills — and to natively understand the npx skills open ecosystem.
Skill Directory Layout
MioChat auto-scans all the following paths (in priority order). Know where to install:
<project_root>/
├── lib/chat/llm/skills/ ← System built-in (DO NOT touch)
│
├── .agents/skills/ ← ✅ PRIMARY user install target
│ └── <skill-name>/SKILL.md (npx skills add --agent universal)
│
└── .miochat/skills/ ← Legacy user install target (still supported)
└── <skill-name>/SKILL.md
~/.config/agents/skills/ ← Global install (npx skills add -g --agent universal)
~/.miochat/skills/
~/.claude/skills/ ← Cross-agent sharing
~/.cursor/skills/
~/.anthropic/skills/
Default install target: .agents/skills/ (gitignored, safe to modify)
Understanding npx skills Commands
The npx skills CLI is an open ecosystem for distributing SKILL.md files across AI agents.
Common commands you may receive from users:
# Install from GitHub (project-level, universal agent)
npx skills add username/repo-name --agent universal
# Install from GitHub (global, for all projects)
npx skills add username/repo-name --agent universal -g
# Install targeting a specific agent (if registered)
npx skills add username/repo-name --agent mio
# Install from a URL
npx skills add https://github.com/user/repo --agent universal
What npx skills add actually does:
- Fetches the GitHub repo (or URL)
- Finds all
SKILL.mdfiles inside it - Copies them to the target agent's skill directory:
--agent universal→.agents/skills/(project) or~/.config/agents/skills/(with-g)--agent claude→.claude/skills/--agent cursor→.cursor/skills/
When user sends you an npx skills add command:
Option A — Run it directly (preferred if npx is available):
# Run as-is, then verify the result
npx skills add username/repo --agent universal
ls .agents/skills/
After running, reload skills by calling the sync API.
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.
- 9d ago First seen · 187 lines · 51 tokens per session scan C 31a28cc31073
skill-manager is a skill published in the GitHub repository Pretend-to/mio-chat-backend (38 stars, last pushed today), licensed MIT. It adds 51 tokens to every session and 1,423 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
skill-creator
Create, edit, improve, or audit AgentSkills. Use when creating a new skill from scratch or when asked to improve, review, audit, tidy up, or clean up an existing skill or SKILL.md file. Also use when editing or restructuring a skill directory (moving files to references/ or scripts/, removing stale content, validating…
sub-agent-creator
Create, edit, convert, or audit ChatLuna sub-agent markdown files. Use when adding a new sub-agent, refining a sub-agent prompt, choosing a sub-agent's goal and output contract, restricting tools, skills, MCP, or computer permissions, pinning or omitting a model, setting maxTurns, placing agents under local…
agentcli
Use this skill to inspect or change ChatLuna agent admin state — skills, sub-agents, tools, MCP servers, MCP tools, or permission rules. The skill edits a working copy of the agent config inside the sandbox; the user must run chatluna.agent.sync to write changes back to the host instance.
coding-agent
Delegate coding tasks to Codex, Claude Code, or Pi agents via background process. Use when: (1) building/creating new features or apps, (2) reviewing PRs (spawn in temp dir), (3) refactoring large codebases, (4) iterative coding that needs file exploration. NOT for: simple one-liner fixes (just edit), reading code…
skill-creator
Create, install, or update skills in the workspace. Use when (1) installing a skill from a URL or remote source, (2) creating a new skill from scratch, (3) updating or restructuring existing skills. Always use this skill for any skill installation or creation task.
evolve
Start or monitor an evolutionary development loop.