What is sn-sdk-setup?

Setup guidance for the ServiceNow SDK, a command-line toolkit for building and deploying ServiceNow applications.

Use it to start SDK projects, configure Basic or OAuth login, convert existing applications, add packages, build, deploy, and validate the setup.

It reduces uncertainty around project creation, authentication, conversion, builds, deployment, and environment checks.

sn-sdk-setup — Skill for Claude Code and Codex by aatrey882

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add aatrey882/servicenow-agent-skills --skill sn-sdk-setup

Clone the repo

git clone --depth 1 https://github.com/aatrey882/servicenow-agent-skills

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/aatrey882/servicenow-agent-skills/sn-sdk-setup/github.svg)](https://agentmods.dev/skills/aatrey882/servicenow-agent-skills/sn-sdk-setup)

Your own site

<a href="https://agentmods.dev/skills/aatrey882/servicenow-agent-skills/sn-sdk-setup"><img src="https://agentmods.dev/badge/skills/aatrey882/servicenow-agent-skills/sn-sdk-setup/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/aatrey882/servicenow-agent-skills/sn-sdk-setup"><img src="https://agentmods.dev/badge/skills/aatrey882/servicenow-agent-skills/sn-sdk-setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,955 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00076	$0.01955
Opus 5.5	$0.00030	$0.00782
Sonnet 5.5	$0.00015	$0.00391
Haiku 4.5	$0.00008	$0.00196

Measured 1mo ago against content hash 117afd3de7f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sn-sdk-setup 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 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/check-environment.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

sn-sdk-setup/SKILL.md · 142 lines

How it starts

The opening of the file, as written. The whole thing — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ServiceNow SDK Setup

The ServiceNow SDK (now-sdk) CLI scaffolds, builds, and deploys Fluent DSL applications. Use this skill for any SDK installation, project creation, authentication, or environment validation task.

Reference Files

Read only the file relevant to your task. Do not pre-load references at session start.

File	When to read
`references/setup-workflows.md`	When scaffolding a new project, configuring auth, converting an existing app, or diagnosing environment issues
`references/auth-profiles.md`	When configuring Basic or OAuth auth, managing named aliases, or passing `--auth` to commands
`references/init-templates.md`	When choosing a project template or passing non-interactive init flags
`references/convert-existing-app.md`	When converting an existing application from XML metadata or Update Set
`references/third-party-libraries.md`	When adding npm packages to an SDK project
`references/js-modules-types.md`	When using JS modules in src/server/, TypeScript in server-side modules, or @servicenow/glide type definitions
`references/cli-reference.md`	When looking up auth, init, build, install, download, or dependencies command flags

Scripts

Script	When to use
`scripts/check-environment.sh`	When validating the developer environment before starting SDK work. Use `--offline` in CI pipelines.

Hard Rules

Read before advising. Always read references/setup-workflows.md before giving setup instructions. Do not rely on memory for command syntax — SDK commands change between versions.
Use now-sdk auth --add, not auth save or login. auth save does not exist. login is deprecated. The correct command is now-sdk auth --add <url> --alias <name>.
Always use a named alias. Use now-sdk auth --add <url> --alias dev — aliases allow multiple instances.
Never pick a template without understanding the use case. Follow the discovery flow in the scaffold behavior below. Default to typescript.basic only as a last resort after two unanswered prompts.
The scope prefix comes from now.config.json. When helping with Fluent DSL code after setup, tell the user to activate the sn-sdk-fluent skill.
Never run install without a successful build first. now-sdk install deploys whatever is in dist/. Running it without a prior now-sdk build silently pushes stale or missing artifacts. Build must complete cleanly before deploy.
Always verify auth before deploying. OAuth tokens expire silently. Run now-sdk auth --list and confirm the correct alias is active before every deploy. A mid-deploy auth failure is confusing and hard to diagnose.
sys_app.do is the app record, not the running UI. After deploy, the link in the install output points to the app record. The live UI URL is the endpoint value defined in the UiPage() call in the .now.ts source — e.g. https://<instance>.service-now.com/<endpoint>.do.

Read the full file on GitHub · 142 lines

Files

What ships with it

12 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

1mo ago First seen · 142 lines · 76 tokens per session scan A 117afd3de7f3

Subscribe to this mod's changes

sn-sdk-setup is a skill published in the GitHub repository aatrey882/servicenow-agent-skills (19 stars, last pushed 6mo ago), licensed MIT. It adds 76 tokens to every session and 1,955 once invoked, about $0.0003 per session on Opus 5.5. 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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