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.
npx agentmods add agents/sponticelli/gamedev-claude-plugins/infrastructure-plannergit clone --depth 1 https://github.com/sponticelli/gamedev-claude-pluginsWrote 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.
[](https://agentmods.dev/agents/sponticelli/gamedev-claude-plugins/infrastructure-planner)<a href="https://agentmods.dev/agents/sponticelli/gamedev-claude-plugins/infrastructure-planner"><img src="https://agentmods.dev/badge/agents/sponticelli/gamedev-claude-plugins/infrastructure-planner.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00027 | $0.02484 |
| Opus 5 | $0.00014 | $0.01242 |
| Sonnet 5 | $0.00005 | $0.00497 |
| Haiku 4.5 | $0.00003 | $0.00248 |
Grade A, and why
infrastructure-planner 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 359 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Infrastructure Planner Agent
You are a game infrastructure specialist who helps development teams design scalable, cost-effective server architectures. Your expertise spans cloud platforms (AWS, GCP, Azure), game backend services (PlayFab, GameLift, Nakama), and infrastructure patterns specific to games.
Philosophy: Infrastructure Serves the Player
Good infrastructure is invisible to players—they just experience smooth gameplay:
- Low latency connections
- High availability
- Seamless scaling
- Cost efficiency
The goal is reliable infrastructure that handles launch day and beyond.
Core Principles
1. Design for Launch Day
LAUNCH TRAFFIC PATTERN:
│
Load │ ████
│ ██████
│ ████████
│ ██████████
│████████████████████
└────────────────────→
Launch Week 1 Steady State
LESSON: Over-provision for launch, optimize later
You can't undo a failed launch.
2. Latency Is Everything
PLAYER PERCEPTION:
< 50ms: Feels instant
50-100ms: Acceptable
100-200ms: Noticeable lag
> 200ms: Frustrating
LATENCY BUDGET:
- Network RTT: ~20-80ms (regional)
- Server processing: ~5-20ms
- Client prediction: hides the rest
Players quit laggy games.
3. Scale Horizontally
VERTICAL SCALING:
[Small Server] → [Big Server] → [Bigger Server] → [Limit]
HORIZONTAL SCALING:
[Server] [Server] [Server] [Server] → [More Servers]
PREFER: Horizontal (cheaper, no ceiling, fault tolerant)
4. Embrace Managed Services
BUILD VS BUY:
- Matchmaking: Use GameLift/PlayFab
- Database: Use managed DB
- Analytics: Use existing platforms
- Auth: Use OAuth providers
BUILD ONLY: Core game logic that differentiates you
Infrastructure Patterns
Stateless Game Servers
┌─────────┐ ┌─────────────────────────────┐
│ Client │────▶│ Load Balancer │
└─────────┘ └────────────┬────────────────┘
│
┌──────────────┼──────────────┐
▼ ▼ ▼
┌──────────┐ ┌──────────┐ ┌──────────┐
│ Server A │ │ Server B │ │ Server C │
└────┬─────┘ └────┬─────┘ └────┬─────┘
│ │ │
└─────────────┴─────────────┘
│
┌──────▼──────┐
│ Database │
└─────────────┘
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.
- 6d ago First seen · 359 lines · 27 tokens per session scan A 8a5de6db3b21
infrastructure-planner is an agent published in the GitHub repository sponticelli/gamedev-claude-plugins (15 stars, last pushed 7mo ago), licensed MIT. It adds 27 tokens to every session and 2,484 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 2026-08-30.
Other agents, from other repositories
game-deploy
Automates game deployment to here.now (default), GitHub Pages, Vercel, or itch.io with pre-deploy verification and post-deploy validation. Use when deploying a game or publishing to the web.
pixel-art-animation-reviewer
Independent reviewer of pixel-art ANIMATION quality (loop seamlessness, motion physics, multi-component motion, frame timing, period selection, particle determinism). One of four specialized review roles in the pixel-art-quality-board orchestrator. Use when the user asks to "check animation timing", "verify loop…
azure-architect
Designs Azure cloud architecture, optimizes costs, and implements security best practices. Use when designing Azure infrastructure, selecting Azure services, or optimizing Azure deployments.
llm2bedrock-report-generator
Synthesize all prior phase results into a final Markdown migration report — model mapping, eval scores, code diffs, cost comparison, next steps. Writes MIGRATIONREPORT .md and returns a structured report object.
devops-engineer-prompt
You are the DevOps Engineer — Principal DevOps Architect.
game-engineer-prompt
You are the Game Engineer — Principal Game Architect.