vellum-assistant: Skill for Cursor

.cursor/skills/vellum-user-facing-copy/SKILL.md

vellum-user-facing-copy is a skill for Cursor from vellum-ai/vellum-assistant. It costs 63 tokens per session (409 once invoked), scanned A, original, MIT.

A writing guide for text that people read in Vellum, including documentation, examples, command-line messages, interface labels, and release notes.

In plain words
What is it for?
Reviewing or editing README files, skill instructions, CLI output, error messages, interface text, and assistant-facing release notes.
Why use it?
It helps keep user-facing language clear, consistent, and free of internal implementation terms or private example data.

Skill for Cursor

Written for Cursor: installed under .cursor/.

This is vellum-ai/vellum-assistant's own configuration. It tells Cursor how to work on vellum-assistant itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything vellum-assistant configures →

About the project

Vellum Assistant is a personal AI assistant that remembers information about users, learns their preferences, and takes actions across connected apps. It is intended for people who want an assistant that can manage conversations, unfinished work, and proactive notifications over time. The catalogue skills, hooks, instruction, and setting configure or extend how the assistant works.

vellum-ai/vellum-assistant · 1,234 stars · on GitHub · vellum.ai

Reuse

Borrowing it

Nothing to install: this file belongs to vellum-ai/vellum-assistant. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/vellum-ai/vellum-assistant/main/.cursor/skills/vellum-user-facing-copy/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/vellum-ai/vellum-assistant

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for vellum-user-facing-copy

README.md
[![agentmods](https://agentmods.dev/badge/skills/vellum-ai/vellum-assistant/vellum-user-facing-copy/github.svg)](https://agentmods.dev/skills/vellum-ai/vellum-assistant/vellum-user-facing-copy)
Your own site
<a href="https://agentmods.dev/skills/vellum-ai/vellum-assistant/vellum-user-facing-copy"><img src="https://agentmods.dev/badge/skills/vellum-ai/vellum-assistant/vellum-user-facing-copy/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for vellum-user-facing-copy

Your own site · 80×15
<a href="https://agentmods.dev/skills/vellum-ai/vellum-assistant/vellum-user-facing-copy"><img src="https://agentmods.dev/badge/skills/vellum-ai/vellum-assistant/vellum-user-facing-copy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 409 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00063 $0.00409
Opus 5 $0.00032 $0.00204
Sonnet 5 $0.00013 $0.00082
Haiku 4.5 $0.00006 $0.00041

Measured 12d ago against content hash ba48bc507f00, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

vellum-user-facing-copy scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/skills/vellum-user-facing-copy/SKILL.md · 49 lines

What it actually says

Vellum User-Facing Copy

Terminology

Use "assistant" in user-facing text. "Daemon" is an internal implementation detail and should only appear in internal code, internal comments, file paths, or architecture explanations intended for maintainers.

When unsure, ask: would a user ever read this? If yes, say "assistant".

Generic Examples

Never include real personal data in examples, fixtures, tests, docs, or commit messages.

Use:

Avoid real names, personal emails, real phone numbers, account IDs, tokens, or private workspace paths.

Release Notes

There is currently no release-note surfacing mechanism — the workspace-bulletin feature was removed. Do not add new release-note workspace migrations; the historical set is frozen.

Error Messages

Good user-facing errors:

  • explain what failed
  • avoid exposing internals or secrets
  • say what the user can do next when there is a clear action
  • use consistent product terminology

Avoid stack traces, implementation-only vocabulary, and ambiguous "something went wrong" messages when a concrete cause is available.

Review Workflow

  1. Identify text users may read.
  2. Check terminology, privacy, and clarity.
  3. Check whether the copy implies unavailable or flagged behavior.
  4. Preserve technical precision while removing internal jargon.
  5. Recommend tests or snapshots when copy is part of a stable interface.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 49 lines · 63 tokens per session scan A ba48bc507f00

Subscribe to this mod's changes

vellum-user-facing-copy is a skill published in the GitHub repository vellum-ai/vellum-assistant (1,234 stars, last pushed today), licensed MIT. It adds 63 tokens to every session and 409 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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