database-performance

database-performance is a skill for Claude Code from F-U-S-E-E/FuseDevelopmentGroup. It costs 44 tokens per session (3,274 once invoked), scanned A, original, AGPL-3.0.

Guidance for making database access faster with EF Core or Dapper, two common .NET data-access libraries.

In plain words
What is it for?
Use it when designing read and write models, limiting rows, writing EF Core or Dapper queries, and reviewing database access for N+1 queries or application-side joins.
Why use it?
It helps avoid repeated per-row queries, tracking data that is only being read, oversized results, and joins performed in application code instead of the database.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it when designing read and write models, limiting rows, writing EF Core or Dapper queries, and reviewing database access for N+1 queries or application-side joins.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/f-u-s-e-e/fusedevelopmentgroup/database-performance
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.

Any agent
npx skills add F-U-S-E-E/FuseDevelopmentGroup --skill database-performance
Clone the repo
git clone --depth 1 https://github.com/F-U-S-E-E/FuseDevelopmentGroup

Made for: Claude Code.

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 database-performance

README.md
[![agentmods](https://agentmods.dev/badge/skills/f-u-s-e-e/fusedevelopmentgroup/database-performance/github.svg)](https://agentmods.dev/skills/f-u-s-e-e/fusedevelopmentgroup/database-performance)
Your own site
<a href="https://agentmods.dev/skills/f-u-s-e-e/fusedevelopmentgroup/database-performance"><img src="https://agentmods.dev/badge/skills/f-u-s-e-e/fusedevelopmentgroup/database-performance/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for database-performance

Your own site · 80×15
<a href="https://agentmods.dev/skills/f-u-s-e-e/fusedevelopmentgroup/database-performance"><img src="https://agentmods.dev/badge/skills/f-u-s-e-e/fusedevelopmentgroup/database-performance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,274 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00044 $0.03274
Opus 5.5 $0.00018 $0.01310
Sonnet 5.5 $0.00009 $0.00655
Haiku 4.5 $0.00004 $0.00327

Measured 1mo ago against content hash a2ae01737a39, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

database-performance 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 1mo 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.

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.

.claude/skills/database-performance/SKILL.md · 506 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 1mo ago First seen · 506 lines · 44 tokens per session scan A a2ae01737a39

Subscribe to this mod's changes

database-performance is a skill published in the GitHub repository F-U-S-E-E/FuseDevelopmentGroup (23 stars, last pushed 2d ago), licensed AGPL-3.0. It adds 44 tokens to every session and 3,274 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.

Related

Other skills, from other repositories

database-performance

Database access patterns for performance. Separate read/write models, avoid N+1 queries, use AsNoTracking, apply row limits, and never do application-side joins. Works with EF Core and Dapper.

Aaronontheweb/dotnet-skills · 44 tokens

database-performance

Database access patterns for performance. Separate read/write models, avoid N+1 queries, use AsNoTracking, apply row limits, and never do application-side joins. Works with EF Core and Dapper.

ComeOnOliver/skillshub · 44 tokens

doctrine-fetch-modes

Optimize Doctrine fetching with DTO hydration (SELECT NEW), fetch joins, lazy loading, query hints, and DBAL 4 access.

dev-toolings/superpowers-symfony · 31 tokens

doctrine-batch-processing

Process large datasets with Doctrine (ORM 3 toIterable, flush+clear, bulk DQL) and memory management.

dev-toolings/superpowers-symfony · 29 tokens

backend-cqrs-patterns

Use this skill when the user says 'CQRS', 'command query segregation', 'separate read write model', 'command model', 'query model', 'read model', 'write model', 'materialized view', 'command handler', 'query handler'. This skill enforces: strict command/query separation, write model optimized for consistency, read…

j4flmao/agent-skills · 125 tokens

database-testing

Database schema validation, data integrity testing, migration testing, transaction isolation, and query performance. Use when testing data persistence, ensuring referential integrity, or validating database migrations.

proffesor-for-testing/agentic-qe · 37 tokens