Setup & Installation
openclaw skills install @raghulpasupathi/hash-toolkit
Or with the ClawHub CLI, for registry-managed skill folders outside a full OpenClaw workspace:
npx clawhub install hash-toolkit
What This Skill Does
Provides MD5, SHA1, SHA256, and SHA512 hashing via Node.js built-in crypto, plus a simplified perceptual hash for content similarity. Includes duplicate detection by comparing against a known hash set and a similarity score between two hashes.
Generates all common hash types in one call instead of writing separate crypto.createHash boilerplate for each algorithm.
When to use it
- Deduplicating uploaded files before storing them
- Generating cache keys from request payloads
- Checking document integrity after network transfer
- Finding near-duplicate text content in a processing pipeline
- Building a seen-URLs set to avoid re-crawling
Example Workflow
Here's how your AI assistant might use this skill in practice.
INPUT
User asks: has this document been processed before?
AGENT
- 1Generate SHA256 hash of the document content using generateHash
- 2Load the set of previously seen hashes from storage
- 3Call checkDuplicate with the new hash and the known-hashes Set
- 4Return the isDuplicate flag and hash value to the caller
OUTPUT
{isDuplicate: true, hash: 'a3f2...', algorithm: 'sha256'}