cme-stp-fix-and-ilink2-tag-value-encoding SKILL.md skillA
cme-stp-fix-and-ilink2-tag-value-encoding 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/cme-stp-fix-and-ilink2-tag-value-encoding@v2.0.0Pins v2.0.0 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/cme-stp-fix-and-ilink2-tag-value-encoding/SKILL.md- Versions recorded
- 2
- Latest version
- v2.0.0, committed Sep 4, 2026
- First version recorded
- Sep 3, 2026
- Size
- 10,746 bytes
- Repository stars
- 50
- License
- Apache-2.0
Use when a system speaks tag=value FIX to CME Group: an STP FIX 4.4 trade-capture session, a replay over archived iLink 2 flow, or a conformance harness. Not for live order entry, which moved to iLink 3 binary; see cme-globex-futures-api-integration.
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 Use this skill when a system speaks **tag=value FIX** to or about CME Group: a CME STP FIX 4.4 trade-capture session, a replay or simulator over archived iLink 2 flow, a conformance harness, or a port of legacy CME FIX order-entry code onto iLink 3. It covers the four things hand-rolled CME FIX code gets wrong: 1. Emitting a "FIX message" with no `BeginString`, `BodyLength`, `SendingTime` or `CheckSum` — a string no counterparty can frame, let alone accept. 2. Re-requesting a resend on every out-of-sequence message, turning one gap into a resend storm and a disconnect. 3. Putting a value in Tag 8000 that CME does not define (only `O` and `N` exist). 4. Rounding a price to a fixed number of decimals, which mis-prices any instrument quoted more finely. ## When NOT to Use - **For live CME order entry.** CME order entry no longer accepts tag=value FIX. iLink 2 — the FIX 4.2-based order-entry protocol these tags come from — was decommissioned on the Market Segment Gateway on **2021-03-28** and on the Convenience Gateway on **2025-04-06**. Live order entry is **iLink 3**: FIX Simple Binary Encoding over the …
Read the whole file at its exact version.
How to install
mdr add himanshuj16/algo-trading-skills/cme-stp-fix-and-ilink2-tag-value-encoding@sha256:73861bf5e6df2381The line at the top of this page pins the label v2.0.0, 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_vaowc7cyfyg6lspg)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Sep 3, 2026 and Sep 4, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.0.0 latest | 2026-09-04 | 48bcc05 | 10,746 B | A | view · diff |
| v2.0.0 | 2026-09-03 | 8527a51 | 10,745 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 (10746 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_vaowc7cyfyg6lspg GET https://markdownregistry.com/api/v1/resolve?ref=himanshuj16/algo-trading-skills/cme-stp-fix-and-ilink2-tag-value-encoding GET https://markdownregistry.com/api/v1/blob/73861bf5e6df23817ae428105e05c0ff081caa63968b9b7de4dea2814cb313c7
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.