Linus Developer Tools
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About this skill
Problem
Every day, developers run small, repetitive jobs across shells, web utilities, and notes: hashing a string with md5, converting timestamps, generating a UUID, validating an IP or domain, compacting JSON, translating CSV, or decoding a JWT. Writing one-off commands is error-prone, especially with keys, ports, and encodings, and hard to reuse in Agent workflows.
How It Works
linus-dev-tools exposes common developer operations as callable tools across four categories:
- Crypto and encoding:
md5,sha256,hmac,base64-encode,url-decode - Network and time:
gen-ports,check-port,validate-ip,ts-to-datetime - Tokens and security:
uuid,api-key,jwt-generate,verify-sign - Data formats:
json-format,csv-to-json,escape-html
It targets Python >= 3.9.0 and relies mainly on the standard library, making it a lightweight utility layer for scripts or Agent tasks. The docs also list an ai tool that supports Claude, GPT, and Qwen.
Boundaries
This is a high-frequency developer toolkit, not a full DevOps suite; do not use it as a substitute for production key management, security auditing, or complex network debugging. Free usage is 100 operations per day, while Pro is $9.99/month and includes 100 AI calls, so quotas should be checked in automated flows.
Use Cases
- Generate and verify request signatures with `hmac` and `sign` while integrating third-party APIs.
- Convert CSV user exports to JSON and compact them with `json-minify` before API submission.
- Check local service configuration using `gen-ports`, `check-port`, and `validate-ip` during debugging.
- Escape rich text before storing frontend content with `escape-html` to prevent rendering issues.
Best For
- Backend engineers integrating external APIs who need quick HMAC, signatures, and request validation.
- Data engineers exporting datasets who need CSV/JSON conversion and compact request payloads.
- Frontend engineers running local services who need port checks, random ports, and domain validation.
- Automation engineers building Agent scripts who need UUID, JWT helpers, and lightweight AI calls.
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