A skill-management module for storing, organising, sharing, and managing reusable skills, including their descriptions, content, tags, and files.

Use it to create, read, update, delete, organise, and control access to skill resources through its service and API layers.

It provides a central way to manage skill records and their related files instead of handling them as disconnected data.

app — Skill for Claude Code and Codex by jd-opensource/JoySafeter

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 jd-opensource/JoySafeter --skill app

Clone the repo

git clone --depth 1 https://github.com/jd-opensource/JoySafeter

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/jd-opensource/joysafeter/app/github.svg)](https://agentmods.dev/skills/jd-opensource/joysafeter/app)

Your own site

<a href="https://agentmods.dev/skills/jd-opensource/joysafeter/app"><img src="https://agentmods.dev/badge/skills/jd-opensource/joysafeter/app/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/jd-opensource/joysafeter/app"><img src="https://agentmods.dev/badge/skills/jd-opensource/joysafeter/app.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,746 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. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 2 findings, up to high

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 →

high Tool Misuse · line 218
Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).

Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
high Tool Misuse · line 248
Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).

Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.03746
Opus 5.5	$0.00000	$0.01498
Sonnet 5.5	$0.00000	$0.00749
Haiku 4.5	$0.00000	$0.00375

Measured 1mo ago against content hash 4198bb047cfd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

app 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.

The scan reads SKILL.md. This mod also ships 59 executable files (__init__.py, api/__init__.py, api/schemas.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

backend/app/SKILL.md · 446 lines

How it starts

The opening of the file, as written. The whole thing — 446 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SKILL 后端功能说明文档

概述

SKILL（技能）模块是平台的核心功能之一，用于管理和组织可复用的技能资源。每个技能可以包含描述、内容、标签、文件等丰富的信息，支持公开分享和私有管理。

架构设计

分层架构

SKILL 模块采用经典的分层架构设计：

API Layer (api/v1/skills.py)
    ↓
Service Layer (services/skill_service.py)
    ↓
Repository Layer (repositories/skill.py)
    ↓
Model Layer (models/skill.py)

核心组件

模型层 (Models)
- Skill: 技能主表模型
- SkillFile: 技能文件关联表模型
仓库层 (Repositories)
- SkillRepository: 技能数据访问层
- SkillFileRepository: 技能文件数据访问层
服务层 (Services)
- SkillService: 技能业务逻辑和权限校验
API层 (API)
- RESTful API 端点，提供完整的 CRUD 操作

数据模型

Skill 模型

技能主表，存储技能的核心信息：

字段	类型	说明
`id`	UUID	主键，自动生成
`name`	String(255)	技能名称，必填
`description`	Text	技能描述，必填
`content`	Text	技能内容，必填
`tags`	JSONB	标签列表，默认为空列表
`source_type`	String(50)	来源类型，默认为 "local"
`source_url`	String(1024)	来源 URL，可选
`root_path`	String(512)	根路径，可选
`owner_id`	String(255)	拥有者 ID，外键关联 user.id
`created_by_id`	String(255)	创建者 ID，外键关联 user.id，必填
`is_public`	Boolean	是否公开，默认为 False
`license`	String(100)	许可证信息，可选
`created_at`	DateTime	创建时间
`updated_at`	DateTime	更新时间

约束和索引：

唯一约束：(owner_id, name) - 同一拥有者的技能名称必须唯一
索引：
- skills_owner_idx: 拥有者索引
- skills_created_by_idx: 创建者索引
- skills_public_idx: 公开状态索引
- skills_tags_idx: 标签 GIN 索引（支持 JSONB 查询）

SkillFile 模型

技能文件关联表，存储技能关联的文件信息：

字段	类型	说明
`id`	UUID	主键，自动生成
`skill_id`	UUID	技能 ID，外键关联 skills.id
`path`	String(512)	文件路径，必填
`file_name`	String(255)	文件名，必填
`file_type`	String(50)	文件类型，必填
`content`	Text	文件内容，可选
`storage_type`	String(20)	存储类型，默认为 "database"
`storage_key`	String(512)	存储键（如对象存储的 key），可选
`size`	Integer	文件大小（字节），默认为 0
`created_at`	DateTime	创建时间
`updated_at`	DateTime	更新时间

索引：

skill_files_skill_idx: 技能 ID 索引
skill_files_path_idx: 技能 ID + 路径复合索引

Read the full file on GitHub · 446 lines

Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

1mo ago First seen · 446 lines · 0 tokens per session scan A 4198bb047cfd

Subscribe to this mod's changes

app is a skill published in the GitHub repository jd-opensource/JoySafeter (314 stars, last pushed 1mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 3,746 tokens. 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.

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