add

add is a command for coding agents from Efilkucf/mysql-mcp-plugin. It costs 13 tokens per session (844 once invoked), scanned B, original, MIT.

A guided command for adding a MySQL database connection, optionally through an SSH tunnel.

In plain words
What is it for?
It is for saving a named connection, configuring its database and SSH details, and setting which operations the agent may perform.
Why use it?
It avoids manually editing the connection file and helps collect the details needed for direct or bastion-host access.

Command

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the mysql plugin — 8 commands, 2 hooks, 1 MCP server shipped together

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 commands/efilkucf/mysql-mcp-plugin/add
Clone the repo
git clone --depth 1 https://github.com/Efilkucf/mysql-mcp-plugin

Or install mysql, the plugin that ships this one along with the rest of its 8 commands, 2 hooks, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for add

README.md
[![agentmods](https://agentmods.dev/badge/commands/efilkucf/mysql-mcp-plugin/add.svg)](https://agentmods.dev/commands/efilkucf/mysql-mcp-plugin/add)
Your own site
<a href="https://agentmods.dev/commands/efilkucf/mysql-mcp-plugin/add"><img src="https://agentmods.dev/badge/commands/efilkucf/mysql-mcp-plugin/add.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 844 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00013 $0.00844
Opus 5 $0.00006 $0.00422
Sonnet 5 $0.00003 $0.00169
Haiku 4.5 $0.00001 $0.00084

Measured 3d ago against content hash 050a0ca5e110, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

add scanned grade B with 1 finding 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 3d ago.

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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

|| find ~/.claude/plugins -name cli.js -path '*mysql*' -not -path '*/node_modules/*' 2>/dev/null | head -1
commands/add.md · 72 lines

How it starts

The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add a new MySQL connection to the user's ~/.config/claude-mysql/connections.json.

Resolve the CLI path first

The config CLI lives at dist/cli.js inside this plugin. Resolve its absolute path before doing anything else, because the command you hand the user runs in their shell, where ${CLAUDE_PLUGIN_ROOT} is not set:

ls "${CLAUDE_PLUGIN_ROOT}/dist/cli.js" 2>/dev/null \
  || find ~/.claude/plugins -name cli.js -path '*mysql*' -not -path '*/node_modules/*' 2>/dev/null | head -1

Use the absolute path it prints for the rest of this command. If neither finds it, tell the user the plugin build looks incomplete and stop.

Gather the connection details

Ask for these using AskUserQuestion where there are sensible options, and plain questions otherwise. Never ask for the password — see below.

  1. Name — short identifier, e.g. staging-replica. Use $ARGUMENTS if provided.
  2. Is the database reachable directly from this machine, or only via a bastion?
    • Direct — ask for host and port.
    • Via SSH bastion — ask for the database host and port as resolved from the bastion (not 127.0.0.1), then the bastion host, SSH user, and whether to use the SSH agent (default) or a key file.
    • Already tunnelled locally — host is 127.0.0.1 with the forwarded port. Ask for the command that starts the tunnel and pass it as --tunnel-hint so failures tell the user what to run.
  3. MySQL user and default database (optional).
  4. Capabilities — offer these as options and explain that the plugin refuses anything outside the set, while MySQL's own GRANTs remain the real boundary:
    • select,schema_read — read-only (recommended default)
    • select,schema_read,insert,update — read and modify rows, no deletes
    • select,schema_read,insert,update,delete — full row access
    • select,schema_read,insert,update,delete,ddl — plus schema changes
    • Anything including drop or admin should be chosen deliberately; say so.

Read the full file on GitHub · 72 lines

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.

  1. 3d ago First seen · 72 lines · 13 tokens per session scan B 050a0ca5e110

Subscribe to this mod's changes

add is a command published in the GitHub repository Efilkucf/mysql-mcp-plugin (0 stars, last pushed 21d ago), licensed MIT. It adds 13 tokens to every session and 844 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.