A local developer toolbox that provides common helpers for encoding data, creating IDs, hashing values, reading JWT contents, working with cron schedules, and converting timestamps.

Use it to encode or decode values, generate UUIDs, calculate hashes, inspect JWTs, check cron expressions, and convert timestamps.

It avoids writing or installing separate small scripts for routine development checks and conversions.

devutils — MCP server by ofershap

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add mcp/ofershap/mcp-server-devutils/devutils

Clone the repo

git clone --depth 1 https://github.com/ofershap/mcp-server-devutils

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

devutils scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

server.json · 10 lines

What it actually says

{
  "devutils": {
    "command": "npx",
    "args": [
      "-y",
      "mcp-server-devutils"
    ],
    "env": {}
  }
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 10 lines scan A c4a86a329cbf

Subscribe to this mod's changes

devutils is an MCP server published in the GitHub repository ofershap/mcp-server-devutils (3 stars, last pushed 5mo ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Data and AI Languages Security base64 developer-tools jwt mcp mcp-server model-context-protocol

devutils

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

Other mcp servers, from other repositories

crypto

lime-ref-postgres-mcp

base64

jwt

godot-mcp

hypermnesia-mcp