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diagnose-queries

v0.5.0

Diagnose slow database queries across Postgres, the ORM layer (N+1), and Snowflake/dbt — routes to five modes (known query, locate offender, live incident, proactive audit, regression) and produces a root-caused, verified fix.

Claude Code1 Skill

By Matt NoxonLicense: MIT0 GitHub starsUpdated last week

Directory evidence

Runtimes
Claude Code
Parsed components
1 skill or MCP entry
Source updated
Sep 11, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install diagnose-queries for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install diagnose-queries@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/mnox/mnox-ai

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/diagnose-queries/.

Plugin files

plugins/diagnose-queries/
├── .claude-plugin/plugin.json
└── skills/diagnose-queries/SKILL.md

Included Skills1

diagnose-queriesskills/diagnose-queries/SKILL.md

Use when a database query or query-backed endpoint is slow — this query is slow, the page takes forever, DB is pegged, find the slow queries, why is this endpoint slow, N+1 suspicion, query timeouts, high p99 latency, EXPLAIN or plan analysis, a slow Snowflake/dbt model, or a query that used to be fast. Routes to one of five diagnostic modes (analyze a known query, locate an unknown offender, triage a live incident, audit proactively, or chase a regression), runs the right toolkit (EXPLAIN ANALYZE, pg_stat_statements, pg_stat_activity, APM/DBM tracing, Snowflake Query Profile), and produces a root-caused fix with before/after verification.

Plugin manifests1

plugins/diagnose-queries/.claude-plugin/plugin.json
{
  "name": "diagnose-queries",
  "version": "0.5.0",
  "description": "Diagnose slow database queries across Postgres, the ORM layer (N+1), and Snowflake/dbt — routes to five modes (known query, locate offender, live incident, proactive audit, regression) and produces a root-caused, verified fix.",
  "author": {
    "name": "Matt Noxon"
  },
  "homepage": "https://github.com/mnox/mnox-ai",
  "license": "MIT"
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[diagnose-queries on Agent Plugins Marketplace](https://pluginsmp.com/plugins/diagnose-queries)