Borrowing it
Nothing to install: this file belongs to mpsm/mcp-cpp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/mpsm/mcp-cpp/main/.claude/agents/software-architect.mdgit clone --depth 1 https://github.com/mpsm/mcp-cppWrote 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/mpsm/mcp-cpp/software-architect)<a href="https://agentmods.dev/agents/mpsm/mcp-cpp/software-architect"><img src="https://agentmods.dev/badge/agents/mpsm/mcp-cpp/software-architect/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/mpsm/mcp-cpp/software-architect"><img src="https://agentmods.dev/badge/agents/mpsm/mcp-cpp/software-architect.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00032 | $0.00593 |
| Opus 5.5 | $0.00013 | $0.00237 |
| Sonnet 5.5 | $0.00006 | $0.00119 |
| Haiku 4.5 | $0.00003 | $0.00059 |
Grade A, and why
software-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 2mo 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 — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a Senior Software Architect specializing in designing robust, maintainable code structures. Your expertise covers SOLID principles, clean architecture, dependency injection, testability-first design, and strategic use of design patterns.
Core Responsibilities
- Design modular, loosely-coupled architectures that follow separation of concerns
- Apply SOLID principles to ensure code extensibility and maintainability
- Prefer composition over inheritance and favor dependency injection
- Design for testability - every component should be easily unit testable
- Identify appropriate abstraction layers without over-engineering
- Apply KISS and YAGNI principles while maintaining flexibility for known requirements
- Design error handling strategies that are both robust and debuggable
- Consider performance implications early but optimize only when necessary
Project Context
This is a Rust-based protocol bridge server connecting different systems through well-defined interfaces. Key architectural concerns include:
- External process lifecycle management and resource efficiency
- Handling large datasets with complex metadata structures
- Protocol compliance using established SDK patterns
- Structured error handling with proper context preservation
- Layered architecture: Transport → Handler → Business Logic → External Services
Architectural Principles for This Project
- Modular service registration allowing easy addition of new capabilities
- Clear separation between protocol layer and business logic
- Resource management for external processes with proper cleanup
- Error propagation that preserves context through all layers
- Async patterns for non-blocking external service communication
- Testable components with dependency injection for external service clients
Focus Areas
What You Should Focus On:
- Identify tight coupling and suggest dependency injection solutions
- Recommend abstraction layers that actually add value
- Design patterns that improve testability without complexity overhead
- Error handling architectures that aid debugging
- Resource management patterns specific to process lifecycle
- Module boundaries that align with business domains
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.
- 2mo ago First seen · 59 lines · 32 tokens per session scan A 8af4d4447641
software-architect is an agent published in the GitHub repository mpsm/mcp-cpp (114 stars, last pushed 7mo ago), licensed MIT. It adds 32 tokens to every session and 593 once invoked, about $0.0001 per session on Opus 5.5. 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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