GB-Power-Market-JJ checksum

A CLI utility for generating and verifying cryptographic file checksums (MD5, SHA1, SHA256). Supports recursive directory hashing and verification from file.

install

source · Clone the upstream repo

git clone https://github.com/GeorgeDoors888/GB-Power-Market-JJ

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/GeorgeDoors888/GB-Power-Market-JJ "$T" && mkdir -p ~/.claude/skills && cp -r "$T/openclaw-skills/skills/autogame-17/checksum" ~/.claude/skills/georgedoors888-gb-power-market-jj-checksum && rm -rf "$T"

OpenClaw · Install into ~/.openclaw/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/GeorgeDoors888/GB-Power-Market-JJ "$T" && mkdir -p ~/.openclaw/skills && cp -r "$T/openclaw-skills/skills/autogame-17/checksum" ~/.openclaw/skills/georgedoors888-gb-power-market-jj-checksum && rm -rf "$T"

manifest: openclaw-skills/skills/autogame-17/checksum/SKILL.md

source content

Checksum Utility

A dedicated CLI tool for ensuring file integrity. Use this skill to verify downloads, check for changes in files, or generate checksums for release artifacts.

Features

Multi-Algorithm: Supports
```
md5
```
(default),
```
sha1
```
,
```
sha256
```
,
```
sha512
```
.
Recursive Hashing: Generates checksums for entire directories.
Verification: (Planned) Validate files against a checksum list.
JSON Output: Machine-readable output for integration scripts.

Usage

Calculate File Checksum

node skills/checksum/index.js --file <path> [--algo <md5|sha1|sha256>]

Example:

node skills/checksum/index.js --file package.json --algo sha256
# Output: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  package.json

Recursive Directory Checksum

node skills/checksum/index.js --dir <path> [--algo <md5|sha1|sha256>] [--json]

Example:

node skills/checksum/index.js --dir src/ --algo sha1 --json > checksums.json

Why use this instead of

md5sum

Cross-Platform: Works on any OS with Node.js (Linux, macOS, Windows).
No System Deps: Doesn't rely on
```
coreutils
```
being installed.
JSON Support: Easy to parse in other scripts.