calendar-spread-and-multi-leg-order-atomicity SKILL.md skillA
calendar-spread-and-multi-leg-order-atomicity from himanshuj16/algo-trading-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add himanshuj16/algo-trading-skills/calendar-spread-and-multi-leg-order-atomicity@v1.1.0Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- himanshuj16/algo-trading-skills
- Path
skills/calendar-spread-and-multi-leg-order-atomicity/SKILL.md- Versions recorded
- 5
- Latest version
- v1.1.0, committed Sep 3, 2026
- First version recorded
- Jul 30, 2026
- Size
- 6,567 bytes
- Repository stars
- 50
- License
- Apache-2.0
Use when executing a multi-leg strategy on a venue with no native combination instrument, managing legging risk when one leg fills and the market moves before the other. A native spread instrument makes this unnecessary.
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
## When to Use Invoke this skill when executing multi-leg derivatives strategies (e.g., selling near-month, buying far-month options) across exchanges that lack native "combo" or "spread" order types. Executing these legs independently exposes the portfolio to **Legging Risk**—where one leg is filled but the market moves away before the second leg fills, leaving the portfolio with unintended directional Delta risk. ## When NOT to Use - **A native combination instrument exists.** CME Globex lists calendar spreads as tradable instruments in their own right and its implied-order engine matches spread and outright books together "without the risk to the trader/broker of being double filled or filled on one leg and not on the other leg." Eurex, Deribit and most listed-derivatives venues offer equivalent combo/strategy books. Native combos give exchange-guaranteed atomicity; this skill only *approximates* it. Always check for a native instrument first — see `assets/checklist.md`. …
Read the whole file at its exact version.
How to install
mdr add himanshuj16/algo-trading-skills/calendar-spread-and-multi-leg-order-atomicity@sha256:ca7aede11054c5d9The line at the top of this page pins the label v1.1.0, 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_nt3vkwr43xklieno)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 30, 2026 and Sep 3, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.1.0 latest | 2026-09-03 | 8527a51 | 6,567 B | A | view · diff |
| v1.1.0 | 2026-09-03 | 64e8b01 | 6,504 B | A | view · diff |
| v1.1.0 | 2026-08-22 | 3ed130d | 6,481 B | A | view · diff |
| v1.0.0 | 2026-08-07 | 89d1436 | 2,873 B | A | view · diff |
| v1.0.0 | 2026-07-30 | dfc60c7 | 2,871 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 (6567 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
himanshuj16/algo-trading-skills · 50 stars · license Apache-2.0 · pushed 2026-09-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_nt3vkwr43xklieno GET https://markdownregistry.com/api/v1/resolve?ref=himanshuj16/algo-trading-skills/calendar-spread-and-multi-leg-order-atomicity GET https://markdownregistry.com/api/v1/blob/ca7aede11054c5d9e27b74bc1a1ffb7221a08c5df7432c81599904ea169bb77e
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.