vellum-feature-flag-rollout SKILL.md skillA

vellum-feature-flag-rollout from vellum-ai/vellum-assistant is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add vellum-ai/vellum-assistant/vellum-feature-flag-rollout@git:20260612.4834458

Pins git:20260612.4834458 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
.cursor/skills/vellum-feature-flag-rollout/SKILL.md
Versions recorded
3
Latest version
git:20260612.4834458, committed Jun 12, 2026
First version recorded
May 21, 2026
Size
1,815 bytes
Repository stars
1,467
License
MIT

Guide Vellum Assistant feature flag changes and rollout hygiene. Use when adding, editing, reviewing, or documenting assistant feature flags, rollout-gated behavior, or platform flag follow-up work.

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

# Vellum Feature Flag Rollout

## Flag Rules

Assistant feature flags use simple kebab-case keys and must be declared in:

```text
meta/feature-flags/feature-flag-registry.json
```

New flags require:

- `scope: "assistant"`
- a canonical kebab-case key
- a safe default
- tests or guard coverage when resolver behavior changes
- a companion `vellum-assistant-platform` PR to provision the flag in Terraform

## Rollout Hygiene

There is no release-note surfacing mechanism — the workspace-bulletin feature was removed and the historical release-note migrations are frozen. Do not add new release-note migrations for any feature (flagged or GA). If a release needs user-facing notes, design an explicit on-demand surfacing mechanism first.

## Permission Controls V2

Under `permission-controls-v2`, do not add new deterministic approval modes for assistant-owned actions beyond the conversation-scoped host computer access gate. Avoid global toggles, persistent trust-rule UI, wildcard scopes, and time-window approvals.

## Review Workflow

1. Confirm whether the change adds, renames, removes, or consumes a flag.
2. Check registry declaration and key format.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add vellum-ai/vellum-assistant/vellum-feature-flag-rollout@sha256:ad8300051689c0a0

The line at the top of this page pins the label git:20260612.4834458, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_i5i2kh5jtcz3w4qx.svg)](https://markdownregistry.com/a/art_i5i2kh5jtcz3w4qx)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between May 21, 2026 and Jun 12, 2026, about one every 11 days.

versioncommittedcommitsizeaudit
git:20260612.4834458 latest2026-06-12 4834458 1,815 BA view · diff
git:20260524.561a44d2026-05-24 561a44d 1,840 BA view · diff
git:20260521.b4bdd7a2026-05-21 b4bdd7a 1,853 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (1815 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

GitHub

vellum-ai/vellum-assistant · 1,467 stars · license MIT · pushed 2026-10-29 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_i5i2kh5jtcz3w4qx
GET https://markdownregistry.com/api/v1/resolve?ref=vellum-ai/vellum-assistant/vellum-feature-flag-rollout
GET https://markdownregistry.com/api/v1/blob/ad8300051689c0a044c09f5182122beea774f9c5081ef6d2ec2e430f2a775c7f

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.

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