Agent skill

Vellum Feature Flag Rollout

by vellum-ai in vellum-ai/vellum-assistant

Guide Vellum Assistant feature flag changes and rollout hygiene.

MITAuto-check passedDevOps & Cloud

Install Vellum Feature Flag Rollout

skills CLI
$ npx skills add vellum-ai/vellum-assistant --skill vellum-feature-flag-rollout -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install vellum-ai/vellum-assistant vellum-feature-flag-rollout --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.cursor/skills/vellum-feature-flag-rollout .claude/skills/vellum-feature-flag-rollout && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
vellum-feature-flag-rollout
GitHub stars
1.4k
Token cost
~454 tokens
SKILL.md length
206 words
Files
1
Skills in repo
108
Repo updated
First seen
Licence
MIT

At a glance

Guide Vellum Assistant feature flag changes and rollout hygiene.

  • Works in 6 steps: Confirm whether the change adds,… → Check registry declaration and key format. → Check default behavior and rollout safety. → …
  • Documenting assistant feature flags
  • SKILL.md covers Flag Rules, Rollout Hygiene, Permission Controls V2 and Review Workflow, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Vellum Feature Flag Rollout is an agent skill from vellum-ai/vellum-assistant. 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.

Its SKILL.md is about 450 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud. The repository describes itself as: An AI Assistant that’s easy to setup, does your work 24/7, knows your preferences and gets better over time. The licence is MIT.

When your agent uses it

  • Documenting assistant feature flags
  • Rollout-gated behavior
  • Platform flag follow-up work

Example prompts

  • “/vellum-feature-flag-rollout”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Confirm whether the change adds, renames, removes, or consumes a flag.
  2. Check registry declaration and key format.
  3. Check default behavior and rollout safety.
  4. Check docs, release notes, and user-facing copy for flag leaks.
  5. Check whether the platform repo needs a Terraform update.
  6. Recommend focused tests for resolver, route, UI, or behavior changes.

What it can do on your machine

Read from SKILL.md and the folder at commit 33cc983. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Vellum Feature Flag Rollout loads about 454 tokens when it runs. Until then it costs about 57 tokens; SKILL.md has 206 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~57
When it runs · the whole SKILL.md, loaded when a task matches
~454

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from vellum-ai/vellum-assistant at commit 33cc983, republished under its MIT licence (© vellum-ai). 206 words, ~454 tokens.

Download SKILL.mdSave it as .claude/skills/vellum-feature-flag-rollout/SKILL.md (or your agent's skills folder).
name
vellum-feature-flag-rollout
description
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.

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.
  3. Check default behavior and rollout safety.
  4. Check docs, release notes, and user-facing copy for flag leaks.
  5. Check whether the platform repo needs a Terraform update.
  6. Recommend focused tests for resolver, route, UI, or behavior changes.

PR Notes

Call out:

  • flag key
  • default state
  • rollout plan
  • companion platform PR status
  • whether release notes are intentionally omitted

© vellum-ai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .cursor/skills/vellum-feature-flag-rollout of vellum-ai/vellum-assistant.

Open the folder on GitHubat commit 33cc983

Compare with similar skills

Vellum Feature Flag Rollout next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Vellum Feature Flag Rollout compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Vellum Feature Flag Rollout this skillvellum-ai/vellum-assistant1.4k—~454Automated safety check: PassMIT
Monitor CInrwl/nx29k6 repos~4.7kAutomated safety check: PassMIT
Repo Hygiene Scan and FixQwenLM/qwen-code28k—~1.7kAutomated safety check: PassApache-2.0
Bash Defensive Patternspromovaweb/setupvibe10314 repos~572Automated safety check: PassGPL-3.0
Terravision Cloud Diagramspatrickchugh/terravision1.6k—~5.6kAutomated safety check: NotesAGPL-3.0-only
Author Migrationnrwl/nx29k—~12kAutomated safety check: NotesMIT

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Questions about Vellum Feature Flag Rollout

What does Vellum Feature Flag Rollout do?

Guide Vellum Assistant feature flag changes and rollout hygiene. Vellum Feature Flag Rollout is an agent skill from vellum-ai/vellum-assistant. Guide Vellum Assistant feature flag changes and rollout hygiene.

When should I use Vellum Feature Flag Rollout?

Vellum Feature Flag Rollout fits situations like: documenting assistant feature flags; rollout-gated behavior; platform flag follow-up work.

How do I install Vellum Feature Flag Rollout in Claude Code?

Run `npx skills add vellum-ai/vellum-assistant --skill vellum-feature-flag-rollout -a claude-code`. Or copy the skill folder (.cursor/skills/vellum-feature-flag-rollout in vellum-ai/vellum-assistant) into .claude/skills/vellum-feature-flag-rollout in your project. Claude Code loads it when a task matches its description.

How do I install Vellum Feature Flag Rollout in Codex?

Run `npx skills add vellum-ai/vellum-assistant --skill vellum-feature-flag-rollout -a codex`. Or copy the skill folder (.cursor/skills/vellum-feature-flag-rollout in vellum-ai/vellum-assistant) into .agents/skills/vellum-feature-flag-rollout in your project. Codex loads it when a task matches its description.

Can I use Vellum Feature Flag Rollout in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add vellum-ai/vellum-assistant --skill vellum-feature-flag-rollout -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/vellum-feature-flag-rollout, .gemini/skills/vellum-feature-flag-rollout, .github/skills/vellum-feature-flag-rollout and .opencode/skills/vellum-feature-flag-rollout in your project.

What does Vellum Feature Flag Rollout need to run?

SKILL.md names no scripts, command-line tools or credentials: Vellum Feature Flag Rollout is instructions for the agent only.

Does Vellum Feature Flag Rollout access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Vellum Feature Flag Rollout safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Vellum Feature Flag Rollout use?

Vellum Feature Flag Rollout is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Vellum Feature Flag Rollout use?

About 454 tokens (SKILL.md is roughly 1.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Vellum Feature Flag Rollout?

Skills that share tags, products or a category with Vellum Feature Flag Rollout: Monitor CI (nrwl/nx, 29k stars), Repo Hygiene Scan and Fix (QwenLM/qwen-code, 28k stars), Bash Defensive Patterns (promovaweb/setupvibe, 103 stars) and Terravision Cloud Diagrams (patrickchugh/terravision, 1.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Vellum Feature Flag Rollout?

vellum-ai (a GitHub organization) maintains it in vellum-ai/vellum-assistant, which has 1,408 GitHub stars. The repository holds 108 skills in this directory. The repository was last updated on October 9, 2026.

Source: vellum-ai/vellum-assistant on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.