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在 OpenClaw 中安装
/install sha256-tool
功能描述
Compute SHA-256 cryptographic hash values for files and text. Use for secure data verification and integrity checks.
使用说明 (SKILL.md)
SHA256 - SHA-256 Hash Calculator
Generate 256-bit (32-byte) SHA-256 hash values. Industry-standard for file integrity verification, software distribution checksums, and data authentication.
Usage
sha256-tool [options] \x3Cfile>
Examples
sha256-tool downloaded.iso
sha256-tool important.pdf
echo "verify me" | sha256-tool
安全使用建议
Review the mismatch before installing. The code is small and local-only, but it should not be trusted for piped text input unless fixed; use explicit file paths or a known-good hashing command for security-critical checks.
功能分析
Type: OpenClaw Skill
Name: sha256-tool
Version: 1.0.0
The skill is a straightforward SHA-256 hashing utility. While the implementation in scripts/sha256.py contains a minor vulnerability by reading the entire file into memory at once (which could lead to memory exhaustion for very large files), there is no evidence of malicious intent, data exfiltration, or prompt injection.
能力评估
Purpose & Capability
The stated purpose includes hashing files and text, and the examples show piping text, but the included script only hashes a file path or a default local file named a.txt.
Instruction Scope
The SKILL.md example `echo "verify me" | sha256-tool` is not supported by the script; with no argument, the script reads `a.txt` instead of stdin.
Install Mechanism
No install specification is provided even though a Python script is included and SKILL.md documents a `sha256-tool` command. This is mainly a usability/provenance note, not evidence of malicious behavior.
Credentials
The script performs a local file read and SHA-256 digest calculation only, with no credentials, network calls, environment variables, or broad system access shown.
Persistence & Privilege
No persistence, background behavior, privilege escalation, credential use, or stored state is present in the provided artifacts.
如何使用
- 确保已安装 OpenClaw（本地或 Docker 部署）
- 在对话框中输入安装命令：
/install sha256-tool - 安装完成后，直接呼叫该 Skill 的名称或使用
/sha256-tool触发 - 根据 Skill 的参数说明提供必要输入，即可获得结构化输出
版本历史
v1.0.0
Initial release
元数据
常见问题
Sha256 Tool 是什么？
Compute SHA-256 cryptographic hash values for files and text. Use for secure data verification and integrity checks. 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件，目前累计下载 49 次。
如何安装 Sha256 Tool？
在 OpenClaw 或 Claude Code 对话框中运行命令「/install sha256-tool」即可一键安装，无需额外配置。
Sha256 Tool 是免费的吗？
是的，Sha256 Tool 完全免费，采用 MIT-0 许可证，可自由下载、安装和使用。
Sha256 Tool 支持哪些平台？
Sha256 Tool 跨平台运行，可在任意部署了 OpenClaw / Claude Code 的环境中使用（cross-platform）。
谁开发了 Sha256 Tool？
由 BIN（@dinghaibin）开发并维护，当前版本 v1.0.0。
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