Server data from the Official MCP Registry
Portfolio and strategy stress diagnostics with hedge-break detection and regime outlook. Free tier.
About
Portfolio and strategy stress diagnostics with hedge-break detection and regime outlook. Free tier.
Remote endpoints: streamable-http: https://mcp.crashtestyourstrategy.ai/mcp
Security Report
Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.
Endpoint verified · Open access · No issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"io-github-fnobbe-crashtestyourstrategy": {
"url": "https://mcp.crashtestyourstrategy.ai/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
CrashTestYourStrategy — MCP Server
Remote MCP server for portfolio & trading-strategy stress diagnostics. Free tier — no key, no signup. Descriptive, never advisory.
https://mcp.crashtestyourstrategy.ai/mcp
Listed in the official MCP registry as
io.github.fnobbe/crashtestyourstrategy. This repository is the public server card —
the service itself is closed-source; everything an agent (or a reviewer) needs to
verify behaviour is linked below.
Quick start
Claude Code:
claude mcp add --transport http ctys https://mcp.crashtestyourstrategy.ai/mcp
Generic MCP client config (streamable HTTP):
{
"mcpServers": {
"ctys": {
"type": "streamable-http",
"url": "https://mcp.crashtestyourstrategy.ai/mcp"
}
}
}
claude.ai: Settings → Connectors → Add custom connector with the URL above.
The free tier is rate-limited per IP (30 req/min). No account, no key.
What it does
An open diagnostics layer that confronts a proposed portfolio or trading strategy with the failure modes an optimistic backtest ignores — hedge breaks (the 2022 stock-bond case), sequence-of-returns risk, regime blind spots, deflated Sharpe.
Free tier (16 tools)
| Group | Tools |
|---|---|
| Portfolio | portfolio_stress_test (multi-asset stress across baseline / risk-off / rate-shock regimes, hedge-break detection, full drawdown distribution) · portfolio_compare · factor_decomposition · ips_gate (hard gate vs an Investment Policy Statement, breach probability not median path) · long_horizon_stress (multi-year savings/withdrawal plans, ruin probabilities) |
| Strategy | run_stress_test · challenge_strategy · backtest_integrity (deflated Sharpe + which crisis regimes the backtest window missed) |
| Regimes | regime_outlook (model-conditional BULL/SIDEWAYS/BEAR/CRISIS probabilities at 5/21 trading days — preregistered, out-of-sample validated, refreshed daily) · market_regime_map (18-category cross-asset map) · describe_regime · find_similar_regime |
| Record & catalog | list_investment_theses · get_investment_thesis · get_dossier (citable audit trail of prior calls) · submit_feedback |
Full tier (token via contact):
tier2_stress_test (stress any ticker with auto-calibration + realism gate),
build_portfolio, portfolio_frontier.
Response contract
Every response is a versioned envelope (ctys-agent-v1 family) carrying:
grounding_summary— a risk-focused factual statement of the omitted tailrevision_required— a gate-capable signal (never a directive)methodological_limitations— required disclosure of what the diagnostic does NOT establishdata_through/data_staleness_days— self-reported data freshness (EOD, refreshed daily)
validation:// resources expose the realism trust layer: 18 measured stylized facts
per asset vs historical reference bands — the falsifiability surface. Recompute
locally; trust by independent reproduction.
Scope & compliance
Model-based scenario simulation. Descriptive, never advisory: no suitability, timing, or ranking claim is made or implied — the agent decides what "suitable" means. Out-of-sample limits are disclosed, not hidden (e.g. the GFC hedge-behaviour test failed and ships as a documented limitation).
Links
- Capability declaration: https://crashtestyourstrategy.com/interop (JSON: /interop.json)
- Methodology: https://crashtestyourstrategy.com/methodology
- Weekly market-regime outlook (citable, auto-generated): https://crashtestyourstrategy.com/outlook
- Failure-mode ontology: https://crashtestyourstrategy.com/ontology
- llms.txt: https://crashtestyourstrategy.com/llms.txt
- Smithery listing: https://smithery.ai/servers/nobbefrederic/crashtestyourstrategy
Maintainer: @fnobbe · Operator contact: https://crashtestyourstrategy.com/contact
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