b3-brazil-exchange-api-integration SKILL.md skillA
b3-brazil-exchange-api-integration 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/b3-brazil-exchange-api-integration@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/b3-brazil-exchange-api-integration/SKILL.md- Versions recorded
- 5
- Latest version
- v2.0.0, committed Sep 4, 2026
- First version recorded
- Aug 7, 2026
- Size
- 9,256 bytes
- Repository stars
- 50
- License
- Apache-2.0
Use when configuring B3 PUMA Trading System connectivity and choosing between the legacy FIX/FAST stack and Binary SBE; enforces the SBE gap-recovery precondition that separates them, and manages connection lifecycle state around a vendor SDK.
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
## Purpose
Validates B3-specific connectivity configuration and manages connection state for algorithmic trading systems connecting to the B3 PUMA Trading System. Its central job is to make one architectural asymmetry impossible to get wrong: B3's legacy FIX/FAST UMDF publishes TCP-based recovery services, while the newer Binary UMDF (SBE) feed does not — so an SBE consumer must implement its own gap recovery or it will lose market data silently.
## Scope — what this skill does NOT do
**This module performs no network I/O.** It opens no sockets, sends no FIX/FIXP messages, and contacts nothing. `connect()` drives a state machine and delegates to an injected `connector` callable; with no connector supplied it logs a warning and reports success without touching the network.
A successful `connect()` is therefore **not** evidence of reachability, valid credentials, IP whitelisting, or entitlement. Earlier versions of this skill presented `if engine.connect(): print("Connected to B3")` as a connectivity example, which was misleading — it would print success on a machine with no network at all. Inject a real connector (OnixS, B2BITS, or your own socket layer) for actual sessions.
…Read the whole file at its exact version.
How to install
mdr add himanshuj16/algo-trading-skills/b3-brazil-exchange-api-integration@sha256:ead83df9e6609ee9The 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_uimswiigvxgtmuxo)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Aug 7, 2026 and Sep 4, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.0.0 latest | 2026-09-04 | 48bcc05 | 9,256 B | A | view · diff |
| v2.0.0 | 2026-09-03 | 8527a51 | 9,255 B | A | view · diff |
| v2.0.0 | 2026-09-03 | 64e8b01 | 9,257 B | A | view · diff |
| v2.0.0 | 2026-08-13 | 097e217 | 9,234 B | A | view · diff |
| v1.1.0 | 2026-08-07 | 89d1436 | 2,507 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 (9256 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_uimswiigvxgtmuxo GET https://markdownregistry.com/api/v1/resolve?ref=himanshuj16/algo-trading-skills/b3-brazil-exchange-api-integration GET https://markdownregistry.com/api/v1/blob/ead83df9e6609ee903320bb7ff2a73ffbbc581bf45e1d79cb500bd8f1365f2a3
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.