agentmods.dev

skillsmith-demo

skillsmith-demo is a skill for Claude Code from Songmu/skillsmith. It costs 17 tokens per session (322 once invoked), scanned A, original, MIT.

A demonstration skill for adding skill distribution to a command-line tool (CLI), a program controlled through terminal commands. It shows how a Go tool can bundle, install, update, inspect, reinstall, and remove agent skills.

In plain words
What is it for?
Use it to list available skills, preview or perform installation, install to a custom directory, check status, update changed skills, reinstall them, or uninstall managed skills.
Why use it?
It gives CLI developers a defined way to manage bundled skills across an agent environment or a specific repository.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

not rated 21repo changed 1mo ago A scan 17 tokens original MIT

Good fit Use it to list available skills, preview or perform installation, install to a custom directory, check status, update changed skills, reinstall them, or uninstall managed skills.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/songmu/skillsmith/skillsmith-demo
View source ↗ Songmu/skillsmith
Install

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.

Any agent
npx skills add Songmu/skillsmith --skill skillsmith-demo
Clone the repo
git clone --depth 1 https://github.com/Songmu/skillsmith

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.

agentmods badge for skillsmith-demo

README.md
[![agentmods](https://agentmods.dev/badge/skills/songmu/skillsmith/skillsmith-demo/github.svg)](https://agentmods.dev/skills/songmu/skillsmith/skillsmith-demo)
Your own site
<a href="https://agentmods.dev/skills/songmu/skillsmith/skillsmith-demo"><img src="https://agentmods.dev/badge/skills/songmu/skillsmith/skillsmith-demo/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.

agentmods 80×15 button for skillsmith-demo

Your own site · 80×15
<a href="https://agentmods.dev/skills/songmu/skillsmith/skillsmith-demo"><img src="https://agentmods.dev/badge/skills/songmu/skillsmith/skillsmith-demo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 322 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00017 $0.00322
Opus 5.5 $0.00007 $0.00129
Sonnet 5.5 $0.00003 $0.00064
Haiku 4.5 $0.00002 $0.00032

Measured 1mo ago against content hash 154c7f5af97e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skillsmith-demo 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 1mo 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.

skills/skillsmith-demo/SKILL.md · 57 lines

What it actually says

skillsmith-demo

skillsmith is a Go library that makes it easy to attach AI agent skill distribution to any existing CLI tool.

Overview

skillsmith lets you embed agentskills-compatible skill files into your Go binary and expose an skills subcommand that installs, updates, and manages those skills in the user's agent environment.

Usage

# List skills bundled with this tool
mytool skills list

# Install skills into the default skills directory (~/.agents/skills)
mytool skills install

# Install skills scoped to the current repository
mytool skills install --scope repo

# Install skills to a custom directory
mytool skills install --prefix /path/to/skills

# Preview what would be installed without making changes
mytool skills install --dry-run

# Check which skills are installed and whether updates are available
mytool skills status

# Update skills whose version has changed
mytool skills update

# Reinstall all managed skills
mytool skills reinstall

# Remove all managed skills
mytool skills uninstall

Notes

  • Skills are installed alongside a .skillsmith.json metadata file that records the installing tool, version, and timestamp.
  • Unmanaged skills (placed manually without .skillsmith.json) are never overwritten unless --force is provided.
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.

  1. 1mo ago Changed · -5 lines 154c7f5af97e
  2. 2mo ago First seen · 62 lines · 17 tokens per session scan A 14e86fedeb62

Subscribe to this mod's changes

skillsmith-demo is a skill published in the GitHub repository Songmu/skillsmith (21 stars, last pushed yesterday), licensed MIT. It adds 17 tokens to every session and 322 once invoked, about $0.0001 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 2026-08-30.

Building agents
Related

skillsmith-demo compared with skills from other repositories

skillsmith-demo next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
skillsmith-demoSongmu/skillsmithSkill21yesterdayMITA17Claude Code
imagegenopenai/codexSkill135ktodayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill100ktodayApache-2.0A19Claude Code
browser-automationopenclaw/openclawSkill394ktodayMITA36Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill80k7d agoMITA200Claude Code, Codex
next-cache-components-adoptionvercel/next.jsSkill144ktodayMITA95Claude Code
chat-pet-sprite-creationmicrosoft/vscodeSkill195ktodayMITA53Claude Code, Codex