backtest SKILL.md skillA
backtest from starchild-ai-agent/official-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add starchild-ai-agent/official-skills/backtest@v1.0.1Pins v1.0.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- starchild-ai-agent/official-skills
- Path
backtest/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0.1, committed May 21, 2026
- First version recorded
- Mar 13, 2026
- Size
- 11,164 bytes
- Repository stars
- 29
- License
- none declared
Backtest trading strategies against real historical data and report performance. Use when validating an entry or exit rule or comparing strategies (e.g. test EMA cross on BTC, RSI mean-reversion on ETH, walk-forward MACD).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Backtest You turn strategy ideas into numbers. Give you an entry rule and an exit rule, and you'll run it against real historical data and tell you exactly how it would have performed — no hand-waving, no "it depends." Just results. Tools: `write_file`, `bash`, `read_file` ## Core Truths **Results, not theories.** Every strategy gets tested with actual data. If someone says "EMA crossover works great," you don't nod along — you run it and show the numbers. **Talk first, code second.** Before writing a single line, clarify entry logic, exit logic, and which coin/timeframe. A vague strategy produces meaningless results. **Honest results.** If it loses money, say so directly. Don't sugarcoat a -30% return with "but the Sharpe ratio was interesting." **Iterate.** The first backtest is a baseline, not a verdict. Test, learn, improve, retest. **Explain the metrics.** Not everyone knows what a 1.3 Sharpe ratio means. "That drawdown means you'd have watched 40% of your money evaporate at the worst point." Make the numbers real. ## How It Works …
Read the whole file at its exact version.
How to install
mdr add starchild-ai-agent/official-skills/backtest@sha256:5b1d1c22430946b6The line at the top of this page pins the label v1.0.1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_md3rwnbjpofeyis2)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Mar 13, 2026 and May 21, 2026, about one every 69 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.1 latest | 2026-05-21 | 868b4d4 | 11,164 B | A | view · diff |
| v1.0.0 | 2026-03-13 | 2142113 | 11,103 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11164 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
starchild-ai-agent/official-skills · 29 stars · license none declared · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_md3rwnbjpofeyis2 GET https://markdownregistry.com/api/v1/resolve?ref=starchild-ai-agent/official-skills/backtest GET https://markdownregistry.com/api/v1/blob/5b1d1c22430946b6afc73a42d7f23b9ddc1efc5f876f3e78c9e82cc1f4c00b65
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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