capture-alpaca-create SKILL.md skillA
capture-alpaca-create from estuary/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add estuary/agent-skills/capture-alpaca-create@git:20260924.c6e4810Pins git:20260924.c6e4810 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- estuary/agent-skills
- Path
skills/capture-alpaca-create/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260924.c6e4810, committed Sep 24, 2026
- First version recorded
- Jun 16, 2026
- Size
- 14,105 bytes
- Repository stars
- 7
- License
- Apache-2.0
Create an Alpaca capture using flowctl to stream stock trade data into Estuary collections. Use when setting up an Alpaca Market Data source for historical and real-time stock trades. Use when user says "capture Alpaca", "stream stock trades", "Alpaca market data", or "connect Alpaca to Estuary".
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
# Create Alpaca Capture Create an Alpaca capture using flowctl to stream stock trade data from the Alpaca Market Data API into Estuary collections — both a historical backfill and a low-latency real-time stream, in parallel. **Applies to**: source-alpaca (Alpaca Market Data connector) ## Step 0: Load Connector Documentation Before proceeding, fetch the official connector docs for prerequisites, config reference, and limitations. **Load the docs page:** https://docs.estuary.dev/reference/Connectors/capture-connectors/alpaca/ Use WebFetch to load this page. It covers: - The dual-API model (Trades REST API for backfill + Data API websocket for real-time) - Supported symbols (8000+ stocks/ETFs, max 20 per capture) - Plan requirements (Free/`iex` vs. Unlimited/`sip`) - Full config property reference - The historical/real-time overlap and how to reconcile duplicates **Search Kapa for tribal knowledge** (if the Estuary MCP is configured): ``` Search kapa ai knowledge sources for "capture alpaca common issues" ``` If Kapa MCP is not configured, the user can set it up: https://docs.estuary.dev/features/mcp-integration/ …
Read the whole file at its exact version.
How to install
mdr add estuary/agent-skills/capture-alpaca-create@sha256:b4af09cbdc0926deThe line at the top of this page pins the label git:20260924.c6e4810, 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_uzdaqgjp3amjvzeh)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jun 16, 2026 and Sep 24, 2026, about one every 100 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260924.c6e4810 latest | 2026-09-24 | c6e4810 | 14,105 B | A | view · diff |
| git:20260616.babbd39 | 2026-06-16 | babbd39 | 14,119 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 (14105 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
estuary/agent-skills · 7 stars · license Apache-2.0 · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uzdaqgjp3amjvzeh GET https://markdownregistry.com/api/v1/resolve?ref=estuary/agent-skills/capture-alpaca-create GET https://markdownregistry.com/api/v1/blob/b4af09cbdc0926de7c1cc096df3d7735739f8194f1216b997c904fd5e4ea3aa6
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.