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 skills add davidromeo/tradeblocks-skills --skill health-checkgit clone --depth 1 https://github.com/davidromeo/tradeblocks-skillsWrote 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/skills/davidromeo/tradeblocks-skills/health-check)<a href="https://agentmods.dev/skills/davidromeo/tradeblocks-skills/health-check"><img src="https://agentmods.dev/badge/skills/davidromeo/tradeblocks-skills/health-check/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/skills/davidromeo/tradeblocks-skills/health-check"><img src="https://agentmods.dev/badge/skills/davidromeo/tradeblocks-skills/health-check.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 | $0.00038 | $0.01486 |
| Opus 5 | $0.00019 | $0.00743 |
| Sonnet 5 | $0.00008 | $0.00297 |
| Haiku 4.5 | $0.00004 | $0.00149 |
Grade A, and why
health-check 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 12d 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 — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Strategy Health Check
Surface key performance metrics and stress test results to help understand a strategy's characteristics.
Prerequisites
- TradeBlocks MCP server must be running
- At least one block with trade data loaded
Process
Step 1: Select Strategy
List available blocks and help the user choose what to analyze.
Use list_blocks to show available options.
Ask clarifying questions:
- "Which backtest would you like to analyze?"
- "Do you want to analyze the full portfolio or a specific strategy within it?"
If analyzing a specific strategy, note it for filtering in subsequent steps.
Shortcut for multi-strategy portfolios: If the user wants a comprehensive portfolio-level health check, consider using portfolio_health_check (see Step 6) instead of running Steps 2-5 individually. It combines correlation, tail risk, Monte Carlo, walk-forward, and profile-aware dimensions in one call.
Step 2: Gather Basic Metrics
Run get_statistics for the selected block (with strategy filter if specified).
Present key metrics with context:
| Metric | What It Measures |
|---|---|
| Sharpe Ratio | Risk-adjusted return (higher = better return per unit risk) |
| Sortino Ratio | Downside risk-adjusted return (focuses only on losses) |
| Max Drawdown | Largest peak-to-trough decline (lower = less historical pain) |
| Win Rate | Percentage of trades that were profitable |
| Profit Factor | Gross wins / gross losses (>1 means profitable overall) |
| Net P&L | Total profit after commissions |
Key insight: A strategy can have low win rate but high profit factor if average wins exceed average losses significantly. Neither metric alone tells the full story.
Step 3: Stress Testing
Run stress_test to see how the strategy performed during named historical market stress scenarios (COVID crash, 2022 bear, VIX spikes, etc.).
Key parameters:
blockId: Block folder namescenarios: Optional list of specific scenario names (omit to run all built-in scenarios)customScenarios: User-defined scenarios with custom date rangesincludeEmpty: Include scenarios with no trades (default: false)
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 12d ago First seen · 165 lines · 38 tokens per session scan A 6a75496f0752
health-check is a skill published in the GitHub repository davidromeo/tradeblocks-skills (2 stars, last pushed 5mo ago), licensed MIT. It adds 38 tokens to every session and 1,486 once invoked, about $0.0002 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 2026-08-31.
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