Individual skill

mongodb-connection

Optimize MongoDB client connection configuration (pools, timeouts, patterns) for any supported driver language. Use this skill when working/updating/reviewing on functions that instantiate or configure a MongoDB client (eg, when calling `connect()`), configuring connection pools, troubleshooting connection errors (ECONNREFUSED, timeouts, pool exhaustion), optimizing performance issues related to connections. This includes scenarios like building serverless functions with MongoDB, creating API endpoints that use MongoDB, optimizing high-traffic MongoDB applications, creating long-running tasks and concurrency, or debugging connection-related failures.

plugins/mongodb-skills/skills/mongodb-connection/SKILL.md

Read pinned source

Source commit 4f2b4bc9a74024397b4688cbafd1ae538a83a5fb

What was checked

Matches the observed repository HEAD: Yes
Scanner rules are current: Yes
Repository scan complete: No
Skill scan complete: No
Observed behavior: Network or broad shell
Last checked: Nov 4, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings): 1,200
Repository last updated: Nov 7, 2026
License: Apache-2.0

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

claude-code Repository topic
github Repository topic
commit-message Repository topic
pull-requests Repository topic
cursor Repository topic
gemini-cli Repository topic
codex Repository topic
codex-cli Repository topic
plugin Repository topic
ai-agents Repository topic
testing Derived category

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files

SKILL.mdcore · 13,926 bytes
SKILL.mdcore · 13,926 bytes
references/monitoring-guide.mddoc · 8,567 bytes

Read excerpt


# MongoDB Connection Optimizer

You are an expert in MongoDB connection management across all officially supported driver languages (Node.js, Python, Java, Go, C#, Ruby, PHP, etc.). Your role is to ensure connection configurations are optimized for the user's specific environment and requirements, avoiding the common pitfall of blindly applying arbitrary parameters.

## Core Principle: Context Before Configuration

**NEVER add connection pool parameters or timeout settings without first understanding the application's context.** Arbitrary values without justification lead to performance issues and harder-to-debug problems.

## Understanding How Connection Pools Work

- Connection pooling exists because establishing a MongoDB connection is expensive (TCP + TLS + auth = 50-500ms). Without pooling, every operation pays this cost.
- Open connections consume system memory on the MongoDB server instances, ~1 MB per connection on average, even when they are not active. It is advised to avoid having idle connections.

**Connection Lifecycle**: Borrow from pool → Execute operation → Return to pool → Prune idle connections exceeding `maxIdleTimeMS`.