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.
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 bytedance/agentkit-samples --skill tos-file-accessgit clone --depth 1 https://github.com/bytedance/agentkit-samplesWrote 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/bytedance/agentkit-samples/tos-file-access)<a href="https://agentmods.dev/skills/bytedance/agentkit-samples/tos-file-access"><img src="https://agentmods.dev/badge/skills/bytedance/agentkit-samples/tos-file-access.svg" alt="Measured on agentmods" 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 | $0.00053 | $0.02226 |
| Opus 5 | $0.00026 | $0.01113 |
| Sonnet 5 | $0.00011 | $0.00445 |
| Haiku 4.5 | $0.00005 | $0.00223 |
Grade A, and why
tos-file-access 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 6d 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 — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TOS File Access
This skill provides utilities for uploading files and directories to TOS-compatible object storage for Volcano Engine or BytePlus, and downloading files from URLs.
Overview
TOS-compatible object storage is used by Volcano Engine and BytePlus, similar to AWS S3. This skill enables:
- Upload: Upload Agent-generated files or entire directories to TOS and get shareable signed URLs (for files) or TOS paths (for directories)
- Download: Download files from URLs to local storage for Agent processing
Typical Workflows
Pre-Agent Execution: Download User Files
When users provide file URLs (TOS or external), download them before processing:
# Download single file
python scripts/file_download.py https://example.com/data.csv
# Download multiple files
python scripts/file_download.py https://example.com/data.csv https://example.com/config.json
# Specify save directory and filenames
python scripts/file_download.py https://example.com/data.csv --save-dir /workspace --filenames dataset.csv
Post-Agent Execution: Upload Output Files or Directories
After generating files or directories (videos, charts, reports, output folders, etc.), upload them to TOS for user access:
# Upload single file (auto-detected)
python scripts/tos_upload.py /path/to/output.mp4 --bucket my-bucket
# Upload entire directory (auto-detected)
python scripts/tos_upload.py /path/to/output_folder --bucket my-bucket
# Upload to BytePlus with custom expiration
TOS_REGION=ap-southeast-1 python scripts/tos_upload.py /path/to/report.pdf --bucket my-bucket --expires 86400
Scripts
scripts/file_download.py
Download files from URLs to local storage.
Usage:
python scripts/file_download.py <url1> [url2 ...] [--save-dir DIR] [--filenames NAME1 NAME2 ...]
Arguments:
urls: One or more URLs to download (positional, required)--save-dir: Save directory (optional, defaults to/tmp)--filenames: Custom filenames for downloaded files (optional, must match number of URLs)
What ships with it
3 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.
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.
- 6d ago First seen · 242 lines · 53 tokens per session scan A dc3c7f4b8d04
tos-file-access is a skill published in the GitHub repository bytedance/agentkit-samples (449 stars, last pushed 2d ago), licensed Apache-2.0. It adds 53 tokens to every session and 2,226 once invoked, about $0.0003 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 2026-08-31.
Other skills, from other repositories
claw-admin
Claw system administration: service management, IM connections, logs, cron, and workspace diagnostics. Use when the user asks to manage claw services, connect/disconnect IM platforms, view logs, or perform system-wide operations.
x-nets
Enhanced netstat module with cached data and structured output. View network connections, routing tables, and interface statistics in interactive or TSV/CSV formats. Dependency: This is an x-cmd module. Install x-cmd first (see x-cmd skill for installation options). see x-cmd skill for installation.
install
Install software any way the system allows. Recommends x install — one front door listing every method and picking the best; plus x eget/x env use/x pixi channels and system package managers with mirror switching. All x-cmd channels install in $HOME — no sudo, no pollution. Use for "install", "apt", "brew", "eget"…
x-theme
Change terminal command line prompt theme. Globally manage the display style of all x-cmd interactive components. Supports multiple theme vendors: theme, starship, ohmyposh. Dependency: This is an x-cmd module. Install x-cmd first (see x-cmd skill for installation options). see x-cmd skill for installation.
x-arp
Display ARP cache table with MAC vendor lookup and suspicious entry detection. Supports CSV, TSV, and TUI output. Dependency: This is an x-cmd module. Install x-cmd first (see x-cmd skill for installation options). see x-cmd skill for installation.
x-lsof
Enhanced lsof (List Open Files) with interactive UI and structured output. View open files, network connections, and processes. Dependency: This is an x-cmd module. Install x-cmd first (see x-cmd skill for installation options). see x-cmd skill for installation.