health-check

health-check is a skill for Claude Code from davidromeo/tradeblocks-skills. It costs 38 tokens per session (1,486 once invoked), scanned A, original, MIT.

A skill for checking the health of a trading strategy by reviewing backtest results. A backtest is a test of how a strategy would have performed using historical market data.

In plain words
What is it for?
Use it to review metrics such as risk-adjusted return, run stress tests, and assess a full portfolio or a selected strategy. It requires the TradeBlocks MCP server and loaded trade data.
Why use it?
It helps reveal performance characteristics, stress behavior, and risk indicators that a return figure alone can miss.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the tradeblocks plugin — 9 skills shipped together

Good fit Use it to review metrics such as risk-adjusted return, run stress tests, and assess a full portfolio or a selected strategy. It requires the TradeBlocks MCP server and loaded trade data.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/davidromeo/tradeblocks-skills/health-check
Install

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.

Any agent
npx skills add davidromeo/tradeblocks-skills --skill health-check
Clone the repo
git clone --depth 1 https://github.com/davidromeo/tradeblocks-skills

Made for: Claude Code.

Or install tradeblocks, the plugin that ships this one along with the rest of its 9 skills.

Wrote 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.

agentmods badge for health-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/davidromeo/tradeblocks-skills/health-check/github.svg)](https://agentmods.dev/skills/davidromeo/tradeblocks-skills/health-check)
Your own site
<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.

agentmods 80×15 button for health-check

Your own site · 80×15
<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>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,486 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce 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

Measured 12d ago against content hash 6a75496f0752, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

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.

skills/health-check/SKILL.md · 165 lines

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 name
  • scenarios: Optional list of specific scenario names (omit to run all built-in scenarios)
  • customScenarios: User-defined scenarios with custom date ranges
  • includeEmpty: Include scenarios with no trades (default: false)

Read the full file on GitHub · 165 lines

Files

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.

Changes

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.

  1. 12d ago First seen · 165 lines · 38 tokens per session scan A 6a75496f0752

Subscribe to this mod's changes

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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