package-usage

package-usage is a skill for Claude Code, Codex from pulumi/agent-skills. It costs 124 tokens per session (655 once invoked), scanned A, original, Apache-2.0.

A procedure for finding which Pulumi stacks use a particular package and which versions they run. A stack is one named instance of infrastructure, such as a test or production environment.

In plain words
What is it for?
Use it to find outdated stacks, assess the impact of a breaking package change, or plan coordinated upgrades.
Why use it?
It replaces manual checking across many environments with a focused package-usage audit.

Skill for Claude CodeCodex

Part of the pulumi plugin — 9 skills shipped together

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.

agentmods
npx agentmods add skills/pulumi/agent-skills/package-usage
Any agent
npx skills add pulumi/agent-skills --skill package-usage
Clone the repo
git clone --depth 1 https://github.com/pulumi/agent-skills

Made for: Claude Code, Codex.

Or install pulumi, the plugin that ships this one along with the rest of its 9 skills.

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 package-usage

README.md
[![agentmods](https://agentmods.dev/badge/skills/pulumi/agent-skills/package-usage.svg)](https://agentmods.dev/skills/pulumi/agent-skills/package-usage)
Your own site
<a href="https://agentmods.dev/skills/pulumi/agent-skills/package-usage"><img src="https://agentmods.dev/badge/skills/pulumi/agent-skills/package-usage.svg" alt="Measured on agentmods" height="20"></a>
Per session 124 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 655 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00124 $0.00655
Opus 5 $0.00062 $0.00328
Sonnet 5 $0.00025 $0.00131
Haiku 4.5 $0.00012 $0.00065

Measured 6d ago against content hash 60a91a13b11d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

package-usage 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 6d 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.

pulumi/skills/package-usage/SKILL.md · 56 lines

How it starts

The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.

API Reference

Query the Pulumi Cloud API with the pulumi api CLI subcommand. It authenticates with your existing Pulumi credentials and returns JSON.

Get the latest version of a package

pulumi api /api/registry/packages -F name={package_name} -F orgLogin={orgName}

Include orgLogin with the user's organization name. Omit -F name=... to list all packages visible to the organization (useful when the user has not named a specific package). The response contains a packages array. Each entry has a version field (the latest version), plus name, publisher, source, and packageStatus.

Get stack usage for a package

pulumi api /api/orgs/{orgName}/packages/usage -F packageName={package_name}

Replace {orgName} with the org name from context, PULUMI_ORG, or ask the user. packageName is required; query one package at a time.

Response fields:

  • packageName: The queried package
  • stacks: Array of {stackName, projectName, version, lastUpdate}
  • totalStacks: Total count

Workflow: Find outdated stacks

Use when the user wants to know which stacks are using an outdated version of a package.

  1. Get the latest version of the package
  2. Get stack usage for the package
  3. Compare each stack's version against the latest to identify outdated stacks
  4. Present results using the output format below

Output Format

Present results as a markdown table followed by a summary line:

| Project | Stack | Current Version | Latest Version | Status |
|---------|-------|-----------------|----------------|--------|
| my-app  | dev   | 6.40.0          | 6.52.0         | Outdated |
| my-app  | prod  | 6.52.0          | 6.52.0         | Up-to-date |

2 of 2 stacks checked. 1 outdated.

Out of scope: upgrading a specific stack

This skill identifies outdated stacks. It does not perform the upgrade itself. For actually bumping a package version in a project — editing package.json, requirements.txt, pyproject.toml, go.mod, or Pulumi.yaml, running pulumi preview, and reconciling the diff — hand off to the provider-upgrade skill.

Read the full file on GitHub · 56 lines

Files

What ships with it

2 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.

  1. 6d ago First seen · 56 lines · 124 tokens per session scan A 60a91a13b11d

Subscribe to this mod's changes

package-usage is a skill published in the GitHub repository pulumi/agent-skills (67 stars, last pushed 7d ago), licensed Apache-2.0. It adds 124 tokens to every session and 655 once invoked, about $0.0006 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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