byted-volcengine-tosutil

byted-volcengine-tosutil is a skill for Claude Code, Codex from bytedance/agentkit-samples. It costs 63 tokens per session (4,487 once invoked), scanned B, original, Apache-2.0.

A command-line assistant for Volcengine TOS, an object-storage service for storing files and other data. It creates and checks tosutil commands for listing, uploading, downloading, copying, inspecting, and deleting stored objects.

In plain words
What is it for?
It helps plan bucket and object operations, handle batch transfers, inspect object metadata and size, configure access, and troubleshoot tosutil failures.
Why use it?
It lowers the risk of incorrect or destructive storage commands by showing a preview first and requiring explicit confirmation for deletion. It also helps diagnose permission, connection, and argument errors.

Skill for Claude CodeCodex ✓ vendor

Written for no agent in particular: nothing here depends on one.

Good fit It helps plan bucket and object operations, handle batch transfers, inspect object metadata and size, configure access, and troubleshoot tosutil failures.

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Install with agentmods
npx agentmods add skills/bytedance/agentkit-samples/byted-volcengine-tosutil
About the project

bytedance/agentkit-samples is a collection of examples and tutorials for Volcengine AgentKit, an AI-agent development platform for building, deploying, and operating agent applications. Developers use the samples to learn agent creation, multi-agent collaboration, memory, retrieval, MCP integrations, media generation, customer service, and other workflows. The catalogue skills provide agent workflows based on these examples.

bytedance/agentkit-samples · 449 stars · on GitHub

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 bytedance/agentkit-samples --skill byted-volcengine-tosutil
Clone the repo
git clone --depth 1 https://github.com/bytedance/agentkit-samples

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.

agentmods badge for byted-volcengine-tosutil

README.md
[![agentmods](https://agentmods.dev/badge/skills/bytedance/agentkit-samples/byted-volcengine-tosutil.svg)](https://agentmods.dev/skills/bytedance/agentkit-samples/byted-volcengine-tosutil)
Your own site
<a href="https://agentmods.dev/skills/bytedance/agentkit-samples/byted-volcengine-tosutil"><img src="https://agentmods.dev/badge/skills/bytedance/agentkit-samples/byted-volcengine-tosutil.svg" alt="Measured on agentmods" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,487 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 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: 4 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 245
    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.
  • medium Privilege Escalation · line 68
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 76
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 84
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00063 $0.04487
Opus 5 $0.00032 $0.02243
Sonnet 5 $0.00013 $0.00897
Haiku 4.5 $0.00006 $0.00449

Measured 4d ago against content hash 00aa52cfb4b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade B, and why

byted-volcengine-tosutil scanned grade B 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 4d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/main.py, scripts/models.py, scripts/result_handler.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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo mv tosutil /usr/local/bin

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- 辅助命令包括 `config`、`help`、`probe`、`netdig`、`hash`、`fcp`、`clear`、`version`、`ping`、`connect`、`traceroute`、`curl`。
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/byted-volcengine-tosutil/SKILL.md · 415 lines

How it starts

The opening of the file, as written. The whole thing — 415 lines — stays where its author put it; the contents beside it link to each section on GitHub.

火山引擎 tosutil Skill

这个 Skill 面向火山引擎对象存储 TOS 的 tosutil 命令行工具,负责把用户意图转换成安全、可执行、可校验的 tosutil 操作流程。

目标一句话

把“要对 TOS 做什么操作”的需求,转换成默认只预览tosutil 命令,并在需要执行时输出结构化 JSON 结果 + 可复现证据 + 可诊断建议

输入与输出

  • 输入:目标命令(如 ls/cp/rm/du/setmeta)+ 最少必要参数(如 tos:// 地址、本地路径、递归开关)+ 可选公共参数(endpoint/region/credentials/conf)。
  • 输出:统一 JSON 协议(ok/code/message/data/ts),包含 preview.shell(脱敏后的可复现命令)、执行摘要、失败时的 advice.codenext_actions

默认行为(降低用户成本 + 安全)

  • 默认只生成命令预览,不执行(需要显式 --run 才会执行)。
  • 破坏性命令(例如 rm)默认不执行:必须显式 --yes(或 legacy 模式下 --assume-yes)才会真正运行。
  • 输出默认脱敏:不会回显 AK/SK/Token。

何时使用

当用户要求以下任一场景时调用本 Skill:

  • 使用 tosutil 初始化或更新 TOS 配置
  • 创建桶、列举桶/对象、查询对象属性
  • 上传、下载、复制、批量删除对象
  • 计算对象容量、设置对象元数据
  • 分析 Http status [403]、连通性失败、命令参数错误等问题
  • shareset-aclmountprobenetdig 等高级命令生成执行方案

文档事实基线

基于 tosutil 文档体系,可确认以下事实:

  • tosutil 是访问和管理火山引擎对象存储 TOS 的命令行工具,适合本地与 TOS 之间的批量数据处理、脚本集成和中小数据迁移。
  • 核心命令包括 lsmkdirdumbcpsetmetastatrmshareset-aclmount
  • 辅助命令包括 confighelpprobenetdighashfcpclearversionpingconnecttraceroutecurl
  • 初始化配置支持永久密钥、STS 临时密钥和匿名访问三种方式。
  • 初始化时应使用 TOS 协议域名,而不是 S3 协议域名。
  • rm 默认存在二次确认;递归和批量删除必须显式评估风险。
  • du 在百万级对象下可能耗时较长,优先按目录拆分计算。

下载与安装

tosutil 支持 Windows、Linux 和 macOS。使用本 Skill 前,建议先根据当前操作系统与芯片架构下载对应版本,并完成执行权限设置。

官方下载建议

  • Linux amd64:支持直接下载二进制并执行
  • macOS amd64(Intel):支持直接下载二进制并执行
  • macOS arm64(Apple M 系列芯片):支持直接下载二进制并执行
  • Windows 64bit:下载 tosutil.exe
  • 官方同时提供对应的 sha256 校验文件,建议下载后做完整性校验
  • 当前 tosutil 最新版本主要适用于 Windows、macOS 和 Linux amd 系统

安装命令

Linux:

wget https://m645b3e1bb36e-mrap.mrap.accesspoint.tos-global.volces.com/linux/amd64/tosutil
chmod a+x tosutil
sudo mv tosutil /usr/local/bin

macOS Intel:

wget https://m645b3e1bb36e-mrap.mrap.accesspoint.tos-global.volces.com/darwin/amd64/tosutil
chmod a+x tosutil
sudo mv tosutil /usr/local/bin

macOS Apple Silicon:

wget https://m645b3e1bb36e-mrap.mrap.accesspoint.tos-global.volces.com/darwin/arm64/tosutil
chmod a+x tosutil
sudo mv tosutil /usr/local/bin

Read the full file on GitHub · 415 lines

Files

What ships with it

5 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.

  1. 4d ago First seen · 415 lines · 63 tokens per session scan B 00aa52cfb4b9

Subscribe to this mod's changes

byted-volcengine-tosutil is a skill published in the GitHub repository bytedance/agentkit-samples (449 stars, last pushed 3d ago), licensed Apache-2.0. It adds 63 tokens to every session and 4,487 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.