byted-mediakit-voiceover-editing

byted-mediakit-voiceover-editing is a skill for Claude Code, Codex from bytedance/agentkit-samples. It costs 104 tokens per session (4,707 once invoked), scanned A, original, Apache-2.0.

A workflow for editing talking-head videos, meaning videos where a person speaks to the camera. It covers preparing media, processing audio, cutting the video, exporting it, reviewing the result, and refining it.

In plain words
What is it for?
It is for cutting spoken videos, processing their audio, exporting finished videos, reviewing edits, and making further changes.
Why use it?
It brings the main steps of talking-head editing into one workflow and can run either with cloud services or entirely on the local computer.

Skill for Claude CodeCodex ✓ vendor

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

Good fit It is for cutting spoken videos, processing their audio, exporting finished videos, reviewing edits, and making further changes.

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Install with agentmods
npx agentmods add skills/bytedance/agentkit-samples/byted-mediakit-voiceover-editing
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 · 453 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-mediakit-voiceover-editing
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-mediakit-voiceover-editing

README.md
[![agentmods](https://agentmods.dev/badge/skills/bytedance/agentkit-samples/byted-mediakit-voiceover-editing/github.svg)](https://agentmods.dev/skills/bytedance/agentkit-samples/byted-mediakit-voiceover-editing)
Your own site
<a href="https://agentmods.dev/skills/bytedance/agentkit-samples/byted-mediakit-voiceover-editing"><img src="https://agentmods.dev/badge/skills/bytedance/agentkit-samples/byted-mediakit-voiceover-editing/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 byted-mediakit-voiceover-editing

Your own site · 80×15
<a href="https://agentmods.dev/skills/bytedance/agentkit-samples/byted-mediakit-voiceover-editing"><img src="https://agentmods.dev/badge/skills/bytedance/agentkit-samples/byted-mediakit-voiceover-editing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,707 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: 6 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 Privilege Escalation · line 10
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 15
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium Prompt Injection · line 203
    Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
    Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
  • medium Prompt Injection · line 90
    Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
    Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
  • medium Prompt Injection · line 250
    Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
    Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
  • medium Prompt Injection · line 278
    Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
    Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
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 $0.00104 $0.04707
Opus 5 $0.00052 $0.02354
Sonnet 5 $0.00021 $0.00941
Haiku 4.5 $0.00010 $0.00471

Measured 9d ago against content hash 1d30035b1986, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

byted-mediakit-voiceover-editing 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 9d ago.

The scan reads SKILL.md. This mod also ships 26 executable files (examples/web-sdk.js, scripts/api_manage.py, scripts/apply_review_to_export.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.

skills/byted-mediakit-voiceover-editing/SKILL.md · 298 lines

How it starts

The opening of the file, as written. The whole thing — 298 lines — stays where its author put it; the contents beside it link to each section on GitHub.

一、模式与凭据

1.1 三种执行模式

模式 说明 所需环境变量 ASR 方式
apig SkillHub 网关代理,Bearer Token 认证 ARK_SKILL_API_BASE + ARK_SKILL_API_KEY(容器注入)+ VOLC_SPACE_NAME + ASR_API_KEY + ASR_BASE_URL 豆包语音大模型
cloud 直连火山引擎 OpenAPI,HMAC 签算 VOLC_ACCESS_KEY_ID + VOLC_ACCESS_KEY_SECRET + VOLC_SPACE_NAME + ASR_API_KEY + ASR_BASE_URL 豆包语音大模型
local 完全本地执行,无需云端服务 无(可选 EXECUTION_MODE=local Qwen3-ASR 本地推理

优先级apig > cloud > local。自动检测按此顺序依次检查环境变量,缺参时打印 .env 路径与缺失变量列表并自动降级。

1.2 凭据配置

  • .env 文件位置<SKILL_DIR>/.env
  • 脚本先读进程环境变量,再用 .env 补全未设置的项(不覆盖容器注入)
  • ARK_SKILL_* 通常由部署容器注入,不必手写到 .env
  • 缺参不阻塞:不使用终端 input() 交互,缺参时打印提示信息并自动降级到可用模式
  • Agent 推荐用户通过编辑 .env 文件Agent 文件写入工具来配置变量,避免终端粘贴问题
  • 安全:控制台创建仅含所需权限的密钥;测试请用独立点播空间.env 勿提交仓库

1.3 模式意图识别(Agent 必读)

当用户在对话中表达模式切换意图时,Agent 应识别并执行:

用户表达 识别为 操作
"用本地模式" / "不走云端" / "离线处理" EXECUTION_MODE=local 写入 .env 或传 --mode local
"用云端" / "用火山引擎" / "走 AK/SK" EXECUTION_MODE=cloud 写入 .env 或传 --mode cloud
"走网关" / "用 apig" / "用 SkillHub" EXECUTION_MODE=apig 写入 .env 或传 --mode apig

隔离要求:各任务的模式选择相互独立。一个任务中切换到 local 不应影响另一个任务的模式。Agent 应在每次任务开始时重新检测或遵循用户当次指定。


二、执行约束(STRICT — NO EXCEPTIONS)

  1. 仅使用以下脚本,禁止创建新脚本
  2. 按顺序执行所有步骤,跳步即任务失败
  3. 执行任何脚本前必须先 cd <SKILL_DIR>/scripts
  4. 每个 CHECKPOINT 必须验证产物后再继续
  5. 任何步骤失败必须立即停止并报告,不得继续
  6. Step 4/5/6 输出禁止简化版、占位符、示例或省略内容
  7. 最终输出必须保持原样,不能做任何修改
  8. 审核页是否自动打开由 TALKING_VIDEO_AUTO_EDIT_REVIEW_AUTO_OPEN 决定(强制):Agent 不得额外执行 open/start/xdg-open 等命令
  9. 超时设置:音视频处理时长较长,宿主超时时间应设置为 60 分钟

Read the full file on GitHub · 298 lines

Files

What ships with it

59 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. 9d ago First seen · 298 lines · 104 tokens per session scan A 1d30035b1986

Subscribe to this mod's changes

byted-mediakit-voiceover-editing is a skill published in the GitHub repository bytedance/agentkit-samples (453 stars, last pushed 2d ago), licensed Apache-2.0. It adds 104 tokens to every session and 4,707 once invoked, about $0.0005 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 2026-09-03.

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