typeorm-expert

typeorm-expert is an agent for Claude Code from 0xfurai/claude-code-subagents. It costs 23 tokens per session (412 once invoked), scanned A, original, MIT.

A guide to using TypeORM, a Node.js library that maps application objects to database tables. It covers models, relationships, queries, migrations, transactions, caching, and database connections.

In plain words
What is it for?
Use it when defining data models, connecting a Node.js app to a database, writing queries, managing schema changes, or tuning database access.
Why use it?
It helps keep database code organised and makes it easier to diagnose query, schema, and transaction problems.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

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 agents/0xfurai/claude-code-subagents/typeorm-expert
Clone the repo
git clone --depth 1 https://github.com/0xfurai/claude-code-subagents

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 typeorm-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/typeorm-expert.svg)](https://agentmods.dev/agents/0xfurai/claude-code-subagents/typeorm-expert)
Your own site
<a href="https://agentmods.dev/agents/0xfurai/claude-code-subagents/typeorm-expert"><img src="https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/typeorm-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 412 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 5.1 $0.00023 $0.00412
Opus 5 $0.00012 $0.00206
Sonnet 5 $0.00005 $0.00082
Haiku 4.5 $0.00002 $0.00041

Measured 3d ago against content hash 7852dbe00bc2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

typeorm-expert 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 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.

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.

agents/typeorm-expert.md · 57 lines

What it actually says

Focus Areas

  • Mastery of TypeORM entities and their configuration
  • Understanding and implementing relation mappings
  • Utilizing loaders and subscribers for lifecycle events
  • Knowledge of migrations and schema synchronization
  • Proficient use of query builders and repositories
  • Configuration of connection options and advanced settings
  • Expertise in handling transactions with TypeORM
  • Implementation of caching mechanisms for performance
  • Efficient use of TypeORM with different databases
  • Debugging and logging TypeORM queries

Approach

  • Define clear and precise entities with appropriate decorators
  • Establish robust relationships with correct cascade options
  • Utilize subscribers for reacting to entity events
  • Maintain a structured migration workflow
  • Optimize complex queries using the query builder
  • Ensure optimal connection settings for production environments
  • Implement transactions for atomic operations
  • Leverage caching techniques to reduce query load
  • Handle database-specific nuances within TypeORM
  • Use TypeORM logging features for query optimization

Quality Checklist

  • Entities are consistently defined and normalized
  • All relationships have appropriate cardinality and options
  • Migrations are idempotent and reversible
  • Queries are efficient and follow best indexing practices
  • Transactions are correctly implemented where needed
  • Connection settings prevent memory leaks and timeouts
  • Adhere to coding standards and TypeORM conventions
  • Error handling is comprehensive and informative
  • Database access is consistently logged for auditing
  • Documentation for schema and relationships is up-to-date

Output

  • Well-structured TypeORM entity classes
  • Comprehensive tests for TypeORM models and queries
  • Clean and safe migrations ready for production
  • Optimized query builder scripts
  • Transaction management strategy
  • Documented code with clear explanations of complex relationships
  • Performance benchmarks for database operations
  • Consistent logging and debugging output
  • Configuration files for different environments
  • Security checks for SQL injection prevention
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 · 57 lines · 23 tokens per session scan A 7852dbe00bc2

Subscribe to this mod's changes

typeorm-expert is an agent published in the GitHub repository 0xfurai/claude-code-subagents (995 stars, last pushed 10mo ago), licensed MIT. It adds 23 tokens to every session and 412 once invoked, about $0.0001 per session on Opus 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 2026-09-03.

Related

Other agents, from other repositories

MS-SQL Database Administrator

Work with Microsoft SQL Server databases using the MS SQL extension.

github/awesome-copilot · 18 tokens

core-data-auditor

Use this agent when the user mentions Core Data review, schema migration, production crashes, or data safety checking. Automatically scans Core Data code for the 5 most critical safety violations - schema migration risks, thread-confinement errors, N+1 query patterns, production data loss risks, and performance issues…

CharlesWiltgen/Axiom · 261 tokens

lens

Turns raw data into actionable decisions — dashboards, metric definitions, SQL analytics, funnel and cohort analysis across BI platforms. Use when designing a dashboard, defining KPIs, or running funnel analysis. Trigger with "design a dashboard", "analyze our funnel".

jeremylongshore/tons-of-skills-marketplace · 53 tokens

ecto-schema-designer

Ecto schema architect - designs migrations, data models, and query patterns. Use proactively when planning database structure for new features.

oliver-kriska/claude-elixir-phoenix · 30 tokens

django-migrations-specialist

Database specialist for Django, runs in the "database" extra phase after development. Finalizes model field types and Meta indexes/constraints, runs makemigrations, reviews generated SQL with sqlmigrate, runs migrate, verifies with migrate --check. Do NOT use for: application logic (django-architect), tests…

AratKruglik/claude-sdlc · 85 tokens

sql-expert

Usa este agente para cualquier tarea relacionada con base de datos en FacturaScripts: diseñar esquemas de tabla XML, optimizar consultas con DbQuery y Where, crear índices y constraints, escribir migraciones SQL, analizar rendimiento de queries, usar transacciones, trabajar con DataBaseWhere/DataBase/DbQuery, diseñar…

FacturaScripts/fs-claude-plugin · 102 tokens