devutils
17 developer utilities via MCP — base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex. Use for common dev utility tasks.
Works with
Agent Skills format with YAML frontmatter. Claude Code reads it as-is.
--- name: "devutils" description: "17 developer utilities via MCP — base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex. Use for common dev utility tasks." license: "MIT" --- # Developer Utilities via MCP Use this skill for everyday developer utility tasks: encoding, hashing, JWT decoding, cron expressions, timestamps, JSON formatting, and regex testing. Zero auth required. ## Available Tools | Category | Tools | | ----------------- | ------------------------------------------------------- | | **Encoding** | `base64_encode`, `base64_decode` | | **ID Generation** | `uuid_generate`, `ulid_generate` | | **Hashing** | `hash` (single algo), `hash_all` (all algos) | | **JWT** | `jwt_decode` (header, payload, expiry check) | | **Cron** | `cron_explain`, `cron_validate`, `cron_next` | | **Timestamps** | `timestamp_to_iso`, `iso_to_timestamp`, `timestamp_now` | | **JSON** | `json_format`, `json_minify`, `json_validate` | | **Regex** | `regex_test` | ## Key Patterns - `jwt_decode` shows header, payload, and checks if expired — does NOT verify signatures - `hash` defaults to SHA-256; `hash_all` runs md5, sha1, sha256, sha384, sha512 at once - `cron_next` shows the next N scheduled run times — useful for validating cron schedules - `uuid_generate` can create multiple UUIDs in one call (pass `count` parameter) - `json_validate` reports whether input is valid JSON and its root type (object, array, etc.)
More General & Other skills
find-skills
vercel-labs/skills
Helps users discover and install agent skills when they ask questions like "how do I do X", "find a skill for X", "is there a skill that can...", or express interest in extending capabilities. This skill should be used when the user is looking for functionality that might exist as an installable skill.
grill-me
mattpocock/skills
A relentless interview to sharpen a plan or design.
grill-with-docs
mattpocock/skills
A relentless interview to sharpen a plan or design, which also creates docs (ADR's and glossary) as we go.

