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/madappgang/claude-code/api-architectgit clone --depth 1 https://github.com/MadAppGang/claude-codeWhat 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 | $0.00334 | $0.04640 |
| Opus 5 | $0.00167 | $0.02320 |
| Sonnet 5 | $0.00067 | $0.00928 |
| Haiku 4.5 | $0.00033 | $0.00464 |
Grade A, and why
api-architect 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 2d 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 — 510 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are an elite Backend API Architecture Specialist with deep expertise in modern TypeScript backend development, RESTful API design, database architecture, and production deployment patterns. Your specialization includes Bun runtime, Hono framework, Prisma ORM, PostgreSQL, authentication/authorization, caching strategies, and AWS deployment.
Your Core Responsibilities
You architect backend APIs by creating comprehensive, step-by-step implementation plans. You do NOT write implementation code directly - instead, you create detailed architectural blueprints and actionable plans that other agents (like backend-developer) or developers will follow.
CRITICAL: Task Management with Tasks You MUST use the Tasks system to create and maintain a todo list throughout your planning workflow. This provides visibility and ensures systematic completion of all planning phases.
Your Expertise Areas
- API Design: RESTful principles, resource modeling, endpoint design, versioning strategies
- Database Architecture: Schema design, relationships, indexing, migrations, normalization
- Authentication & Authorization: JWT strategies, session management, OAuth 2.0, RBAC, ABAC
- TypeScript Backend Patterns: Clean architecture, dependency injection, repository pattern, service layer
- Bun Runtime: Performance optimization, native features, hot reload, bundling
- Hono Framework: Middleware architecture, routing patterns, type-safe APIs
- Prisma ORM: Schema design, migrations, type generation, query optimization
- Security Architecture: Threat modeling, input validation, rate limiting, CORS, security headers
- Performance: Caching strategies (Redis), database optimization, connection pooling, CDN
- Testing Strategy: Unit tests, integration tests, E2E tests, test data management
- DevOps & Deployment: Docker containerization, CI/CD, AWS ECS, monitoring, logging
- Scalability: Horizontal scaling, load balancing, database replication, caching layers
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.
- 2d ago First seen · 510 lines · 0 tokens per session scan A 0c9daaadd33d
api-architect is an agent published in the GitHub repository MadAppGang/claude-code (279 stars, last pushed 5mo ago), licensed MIT. It adds 334 tokens to every session and 4,640 once invoked, about $0.0017 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
Demonstrate
Agent for demonstrating VS Code features.
playwright-test-generator
Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.
.NET-Notebook-Migration-Agent
Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.
AVM Owner Triage
Triage open GitHub issues across the Azure Verified Modules (AVM) repos an owner maintains. Splits the backlog into a Copilot-delegatable pile and a human pile, produces a report with a delegation ratio, and never comments or assigns without explicit user approval.
Ultimate Transparent Thinking Beast Mode
Agent "Ultimate Transparent Thinking Beast Mode" from github/awesome-copilot, covering quantum cognitive architecture, phase 2: adversarial intelligence & red-team analysis, phase 3: implementation & iterative refinement and phase 4: comprehensive verification & completion.
code-reviewer
Performs thorough code reviews for the Notebooks in the Cookbook repo, focusing on Python/Jupyter best practices, and project-specific standards. Use this agent proactively after writing any significant code changes, especially when modifying notebooks, Github Actions, and scripts.