docs: simplify skill installation instructions

Author: makesynt

README.md

@@ -49,26 +49,9 @@ Installing the skill alone is **not** enough to render videos. You also need the
 npx skills add makesynt/seqvio
 ```
 
-This opens interactive selection for the skill, target agent, and install scope.
-From inside a project directory, use this explicit non-interactive Cursor
-install:
-
-```bash
-npx skills add makesynt/seqvio --skill seqvio --agent cursor --yes
-```
-
-`--skill seqvio` selects this skill without a picker, `--agent cursor` targets
-Cursor, and `--yes` skips confirmation prompts and auto-detects scope. None is
-required for an interactive install. By default the CLI installs into the
-current project when run inside one; add `--global` when the skill should be
-available across projects. Replace `cursor` with `claude-code`, `codex`, or
-another supported agent. To inspect the repository first:
-
-```bash
-npx skills add makesynt/seqvio --list
-```
-
-This step copies the Seqvio skill into your agent. It does **not** install npm packages, clone this repo, or render MP4 output by itself.
+This installs the Seqvio skill for the current agent. Use `--global` only when
+you want it available across projects. The skill install does **not** install
+npm packages or render MP4 output by itself.
 
 ### 2. Install the renderer
 

README.zh-CN.md

@@ -46,22 +46,8 @@ Seqvio 分两部分，需要分别安装：
 npx skills add makesynt/seqvio
 ```
 
-这会交互选择 skill、目标 agent 和安装范围。在项目目录中明确指定 Cursor 并进行无交互安装：
-
-```bash
-npx skills add makesynt/seqvio --skill seqvio --agent cursor --yes
-```
-
-`--skill seqvio` 跳过 skill 选择，`--agent cursor` 指定 Cursor，`--yes` 跳过
-确认提示并自动判断安装范围；交互安装时三者都不是必需参数。在项目目录中运行时默认
-安装到当前项目，只有需要跨项目使用时才添加 `--global`。也可把 `cursor` 换成
-`claude-code`、`codex` 等。查看仓库中的 skill 列表：
-
-```bash
-npx skills add makesynt/seqvio --list
-```
-
-这一步只会把 Seqvio skill 安装到 agent，**不会**安装 npm 包、不会 clone 仓库、也不会自动渲染 MP4。
+这会把 Seqvio skill 安装到当前 agent。只有需要跨项目使用时才添加
+`--global`。这一步**不会**安装 npm 包、clone 仓库或自动渲染 MP4。
 
 ### 2. 安装 renderer