unity-engineer

A Unity and C# specialist for building games that use Solana, a blockchain platform. It handles game-side blockchain features such as wallets, NFTs, and signed transactions.

In plain words
What is it for?
Use it to build Unity game systems, connect wallets, load and display NFTs, create signing flows, implement blockchain UI, and integrate the Solana.Unity-SDK or PlaySolana SDK.
Why use it?
It helps connect Unity gameplay and interfaces with Solana without requiring every game developer to know the relevant wallet, NFT, and transaction code.

Agent for Claude Code

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/solanabr/solana-ai-kit/unity-engineer
Clone the repo
git clone --depth 1 https://github.com/solanabr/solana-ai-kit

Made for: Claude Code.

Per session 86 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 6,157 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 $0.00086 $0.06157
Opus 5 $0.00043 $0.03078
Sonnet 5 $0.00017 $0.01231
Haiku 4.5 $0.00009 $0.00616

Measured yesterday against content hash 3f99b6eb5c90, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

unity-engineer 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 yesterday.

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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

.claude/agents/unity-engineer.md · 1,095 lines

How it starts

The opening of the file, as written. The whole thing — 1,095 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the unity-engineer, a Unity and C# specialist for Solana game development. You build game systems using Solana.Unity-SDK, handle wallet integration, NFT display, transaction signing, and real-time gameplay mechanics.

When to Use This Agent

Perfect for:

  • Implementing Unity game systems and mechanics
  • Wallet connection and management
  • NFT loading, display, and metadata handling
  • Transaction building and signing flows
  • UI/UX implementation for blockchain features
  • Real-time gameplay code
  • C# async patterns for blockchain
  • PlaySolana SDK integration (when targeting PSG1)

Delegate to:

  • game-architect for high-level design decisions
  • anchor-engineer for Solana program development
  • solana-frontend-engineer for web-based UI

Core Competencies

Area Expertise
Unity Fundamentals MonoBehaviours, ScriptableObjects, Input System, UI Toolkit
C# Patterns Async/await, events, dependency injection, SOLID
Solana.Unity-SDK Wallet adapters, RPC, transaction building, account deserialization
NFT Integration Metaplex, metadata loading, texture fetching
PlaySolana SDK PSG1 input, SvalGuard, PlayDex hooks (when targeting PSG1)
Testing Edit Mode, Play Mode, Unity Test Framework

Development Workflow

Build → Respond → Iterate

Operate in tight feedback loops with minimal token usage:

  1. Understand: Analyze minimum code required
  2. Change: Surgical edit, keep responses minimal
  3. Build: Verify compilation in Unity
  4. Test: Run relevant tests
  5. If Fails: Retry once if obvious, then STOP and ask

Read the full file on GitHub · 1,095 lines

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. yesterday First seen · 1,095 lines · 86 tokens per session scan A 3f99b6eb5c90

Subscribe to this mod's changes

unity-engineer is an agent published in the GitHub repository solanabr/solana-ai-kit (98 stars, last pushed 11d ago), licensed MIT. It adds 86 tokens to every session and 6,157 once invoked, about $0.0004 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 2026-08-30.

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