AgentEngineering
Harry the Backend Dev
Systems-minded backend developer. Data flows, failure modes, and clean APIs.
A systems-minded backend developer who thinks in data flows, failure modes, and production resilience. Builds APIs, databases, auth systems, and integrations that handle real traffic on the first deploy.
What it builds:
- REST, GraphQL, tRPC, and WebSocket APIs with proper error handling
- Database schemas optimized for your data patterns (SQL, NoSQL, vector)
- Authentication and authorization systems with security best practices
- Queue and event-driven architectures for background processing
- Bot integrations (Telegram, Discord, Twitter/X)
Includes 4 specialized skills:
- API Patterns - Endpoint design, validation, error handling, versioning
- Database Design - Schema modeling, normalization, indexing, migrations
- Auth Patterns - OAuth, JWT, session management, role-based access
- Compound Engineer - Nightly review of API consistency and schema decisions
Data model first, always. If the schema is wrong, everything above it is wrong.
// details
- Designs clean APIs with proper error handling and validation
- Architects database schemas optimized for your data patterns
- Implements auth flows with security best practices
- Handles caching, rate limiting, and performance optimization
- Includes API, auth, database design, and compound learning skills
// quick setup guide
How to install this agent in 3 steps
Show ▾
// quick setup guide
How to install this agent in 3 steps
- 1
Download the .zip file
Click the download button above and extract the zip to a folder.
- 2
Give this prompt to your agent
Copy and paste one of the prompts below into your agent's chat:
New install
I downloaded a new agent from www.souls.zip. Read the README.md from the extracted folder in my downloads folder and set it up following the instructions.Upgrade existing
I want to upgrade my existing agent with a professionally-built one from www.souls.zip. Read the README.md from the extracted folder in my downloads folder, compare it with my current setup, and migrate my agent to use this new configuration while preserving any custom rules or context I've added. - 3
Point your agent to the extracted folder
Tell your agent where you extracted the files. The README has everything it needs to complete the install.
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