In-depth architectural comparison of the Roast My Design System and Xahau MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Roast My Design System
Developer Tools · Local stdio
Quality: 48/100 (Fair) | Auth: No auth required
Xahau MCP
Developer Tools · Local stdio
Quality: 45/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Roast My Design System if you need specialized Developer Tools tools running via a local process. Choose Xahau MCP if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
R
Choose Roast My Design System when:
You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
No explicit tool names declared in metadata yet. Check project README on main listing page.
Xahau MCP Tools (53)
execute_hook
Run the real Hook bytecode in a local VM** against a simulated tx/state → actual accept/rollback, return code, state writes, emits, trace (`LOCAL_VM`).
simulate_transaction
PRE-SIGN FLIGHT SIMULATOR** — predict an unsigned tx's fate: originator + stakeholder hook chains (order canonical from xahaud `Transactor.cpp`/`applyHook.cpp`) run as real bytecode against live state; per-hook verdicts, decoded emits, state writes, static engine preflights, scam score.
what_if
TIME MACHINE** — fetch a real historical tx, apply your overrides, re-simulate at its original ledger. Reproduces the real reward claim's `GenesisMint` to the drop (test-locked).
fuzz_hook
Differential fuzzing**: sweep many generated transactions through the VM to map the hook's accept/rollback **decision boundary** (which tx types / amounts it accepts vs rejects).
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Roast My Design System is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Xahau MCP belongs to Developer Tools using local stdio subprocess. Select Roast My Design System when you need capabilities focused on developer tools and Xahau MCP when you require tools for developer tools.
Post-mortem a real on-chain tx's hooks**: fetch the tx + its `meta.HookExecutions` + engine result, then run each fired hook's **real bytecode** through the VM and compare the VM's accept/rollback to what the chain recorded. On-chain decision is authoritative; VM run is `LOCAL_VM`; `agree` is `null…
vm_fidelity_report
Honest fidelity metric**: replays a committed corpus of real mainnet HookExecutions through the VM and reports agreement % over **comparable (non-degraded)** runs only; offline.
classify_hook
Infer in plain English what a hook does (firewall/emitter/stateful/financial/…).