Generate
v1.0.0Generate random test data including text, numbers, UUIDs, and structured formats. Use when creating mock datasets, sample records, or randomized test inputs.
Like a lobster shell, security has layers — review code before you run it.
License
SKILL.md
Generate — Universal Data Generator
A versatile CLI tool for generating random data of various types. Produce text, numbers, UUIDs, dates, names, emails, addresses, and structured formats like JSON and CSV for testing and development.
Prerequisites
- Python 3.8+
bashshell- Write access to
~/.generate/
Data Storage
Generated data history is stored in JSONL format at ~/.generate/data.jsonl. Each generation event is logged for reproducibility and batch export.
Commands
Run commands via: bash scripts/script.sh <command> [arguments...]
text
Generate random text strings: lorem ipsum, sentences, paragraphs, or custom patterns.
bash scripts/script.sh text --type lorem --words 50
bash scripts/script.sh text --type sentence --count 5
bash scripts/script.sh text --type paragraph --count 2
Arguments:
--type— Text type:lorem,sentence,paragraph,word(optional, default:lorem)--words— Number of words for lorem (optional, default: 20)--count— Number of items to generate (optional, default: 1)
number
Generate random numbers with configurable range and format.
bash scripts/script.sh number --min 1 --max 100
bash scripts/script.sh number --min 0.0 --max 1.0 --decimal 4
bash scripts/script.sh number --count 10 --min 1 --max 1000
Arguments:
--min— Minimum value (optional, default: 0)--max— Maximum value (optional, default: 100)--decimal— Decimal places for float (optional, generates int if omitted)--count— How many numbers (optional, default: 1)
uuid
Generate one or more UUIDs (v4).
bash scripts/script.sh uuid
bash scripts/script.sh uuid --count 5
bash scripts/script.sh uuid --format short
Arguments:
--count— Number of UUIDs (optional, default: 1)--format— Format:full,short(8-char) (optional, default:full)
date
Generate random dates within a range.
bash scripts/script.sh date --start 2020-01-01 --end 2025-12-31
bash scripts/script.sh date --count 10 --format iso
Arguments:
--start— Start date YYYY-MM-DD (optional, default: 2020-01-01)--end— End date YYYY-MM-DD (optional, default: 2025-12-31)--count— Number of dates (optional, default: 1)--format— Date format:iso,us,eu,unix(optional, default:iso)
name
Generate random person names.
bash scripts/script.sh name
bash scripts/script.sh name --count 10 --gender female
bash scripts/script.sh name --full
Arguments:
--count— Number of names (optional, default: 1)--gender— Gender:male,female,any(optional, default:any)--full— Include last name (optional)
Generate random email addresses.
bash scripts/script.sh email
bash scripts/script.sh email --count 5 --domain example.com
Arguments:
--count— Number of emails (optional, default: 1)--domain— Email domain (optional, default: random)
address
Generate random US-style addresses.
bash scripts/script.sh address
bash scripts/script.sh address --count 3
Arguments:
--count— Number of addresses (optional, default: 1)
json
Generate random JSON objects with a specified schema.
bash scripts/script.sh json --schema '{"name":"name","age":"int:18-65","email":"email"}'
bash scripts/script.sh json --schema '{"id":"uuid","score":"float:0-100"}' --count 5
Arguments:
--schema— JSON schema definition (required)--count— Number of objects (optional, default: 1)
csv
Generate random CSV data with headers.
bash scripts/script.sh csv --columns "name,email,age" --rows 20
bash scripts/script.sh csv --columns "id:uuid,name:name,score:float:0-100" --rows 50 --output data.csv
Arguments:
--columns— Column definitions (required)--rows— Number of rows (optional, default: 10)--output— Output file (optional, default: stdout)
password
Generate random passwords with configurable complexity.
bash scripts/script.sh password
bash scripts/script.sh password --length 24 --count 5
bash scripts/script.sh password --no-special --length 16
Arguments:
--length— Password length (optional, default: 16)--count— Number of passwords (optional, default: 1)--no-special— Exclude special characters (optional)
batch
Run multiple generation commands in batch from a config file.
bash scripts/script.sh batch --config batch.json
Arguments:
--config— Batch configuration file (required)
help
Display help information and list all available commands.
bash scripts/script.sh help
version
Display the current tool version.
bash scripts/script.sh version
Examples
# Generate 100 user records as CSV
bash scripts/script.sh csv --columns "id:uuid,name:name,email:email,age:int:18-65" --rows 100 --output users.csv
# Create JSON test data
bash scripts/script.sh json --schema '{"user":"name","score":"float:0-100"}' --count 20
# Quick password generation
bash scripts/script.sh password --length 20 --count 10
Notes
- All generated data is logged in
~/.generate/data.jsonlfor reproducibility - Use
--seed(where supported) for deterministic output - Schema types for JSON/CSV:
name,email,uuid,int:min-max,float:min-max,bool,date,string - Batch mode accepts a JSON config with an array of generation commands
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