vellum-memory-v3-migration SKILL.md skillA
vellum-memory-v3-migration from vellum-ai/vellum-assistant is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vellum-ai/vellum-assistant/vellum-memory-v3-migration@git:20260906.dcf82c1Pins git:20260906.dcf82c1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vellum-ai/vellum-assistant
- Path
skills/vellum-memory-v3-migration/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260906.dcf82c1, committed Sep 6, 2026
- First version recorded
- Jun 18, 2026
- Size
- 24,148 bytes
- Repository stars
- 1,483
- License
- MIT
One-time migration of an existing memory-v2 concept corpus into the memory-v3 section-grain "wiki" — topical articles with a stand-alone lead and queryable sections — with loss-proof staging, assistant-reviewed authoring, and a retrieval-eval gate before cutover.
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
# Memory v3 Migration Reform an **existing** memory-v2 corpus into the memory-v3 wiki: a cross-linked set of topical articles where each article's **lead is its retrieval card** and each `## ` section is an independently retrievable unit. The assistant is the sole reader and editor of this knowledge base; the goal is a clean, well-organized wiki optimized for retrieval. This skill is the **successor** to `vellum-memory-v2-migration`. That skill backfills an empty corpus from scratch; this one **reorganizes a populated one**. If `concepts/` is empty, stop and run that skill instead. ## What actually changes, and why it's two jobs The mechanical cutover is cheap and mostly automatic: v3 reads the same `memory/concepts/*.md` tree, the schema is shared, the DB tables already exist, and section embeddings backfill on demand. **The work is the reform.** v3 retrieval is section-grain: the selector sees a compact **card** per candidate (the article's lead + its section names), and what reaches context is the best-matching `## ` section of each selected article in full (the lead when the article was selected without a section match). A section longer than the section index's chunk… …
Read the whole file at its exact version.
How to install
mdr add vellum-ai/vellum-assistant/vellum-memory-v3-migration@sha256:6ac0f5bf71613af0The line at the top of this page pins the label git:20260906.dcf82c1, 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_jos4y4prpj6fvptl)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 18, 2026 and Sep 6, 2026, about one every 27 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260906.dcf82c1 latest | 2026-09-06 | dcf82c1 | 24,148 B | A | view · diff |
| git:20260727.4bfc747 | 2026-07-27 | 4bfc747 | 23,468 B | A | view · diff |
| git:20260622.0ee8132 | 2026-06-22 | 0ee8132 | 21,169 B | A | view · diff |
| git:20260618.2d76607 | 2026-06-18 | 2d76607 | 19,485 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 (24148 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
vellum-ai/vellum-assistant · 1,483 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jos4y4prpj6fvptl GET https://markdownregistry.com/api/v1/resolve?ref=vellum-ai/vellum-assistant/vellum-memory-v3-migration GET https://markdownregistry.com/api/v1/blob/6ac0f5bf71613af0fec9d5f5f0c105cf17580e268d29b1a3687ed9136361483d
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.