mastra SKILL.md skillA
mastra from justsml/dans-blog is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add justsml/dans-blog/mastra@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
- justsml/dans-blog
- Path
.agents/skills/mastra/SKILL.md- Versions recorded
- 2
- Latest version
- v2.0.0, committed Oct 18, 2026
- First version recorded
- May 15, 2026
- Size
- 8,287 bytes
- Repository stars
- 16
- License
- none declared
Comprehensive Mastra framework guide for building agents, workflows, tools, memory, workspaces, and storage with current APIs. Use for documentation lookup, API verification, TypeScript setup, common errors, migrations, and `mastra api` CLI tasks: inspect or call resources on local, Mastra platform, or remote servers.
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
# Mastra Framework Guide Build AI applications with Mastra. This skill teaches you how to find current documentation and build agents and workflows. ## Critical: Do not trust internal knowledge Everything you know about Mastra is likely outdated or wrong. Never rely on memory. Always verify against current documentation. Your training data contains obsolete APIs, deprecated patterns, and incorrect usage. Mastra evolves rapidly - APIs change between versions, constructor signatures shift, and patterns get refactored. ## Prerequisites Before writing any Mastra code, check if packages are installed: ```bash ls node_modules/@mastra/ ``` - If packages exist: Use embedded docs first (most reliable) - If no packages: Install first or use remote docs ## Available files ### References | User Question | First Check | How To | | ----------------------------------- | ---------------------------------------------------------------- | ---------------------------------------------- | …
Read the whole file at its exact version.
How to install
mdr add justsml/dans-blog/mastra@sha256:6300b681105a51ccThe 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_crbe7cezoy2isjwa)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between May 15, 2026 and Oct 18, 2026, about one every 156 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.0.0 latest | 2026-10-18 | 76d6582 | 8,287 B | A | view · diff |
| v2.0.0 | 2026-05-15 | c34a497 | 8,287 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 (8287 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
justsml/dans-blog · 16 stars · license none declared · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_crbe7cezoy2isjwa GET https://markdownregistry.com/api/v1/resolve?ref=justsml/dans-blog/mastra GET https://markdownregistry.com/api/v1/blob/6300b681105a51cce658534de643584fbb72706af6c4d465fd8f252d4d573121
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.
More from justsml/dans-blog
Every file in justsml/dans-blog