glassity-auth

glassity-auth is a skill for Claude Code from glassity/agent-skills. It costs 97 tokens per session (783 once invoked), scanned A, original, Apache-2.0.

A command set for signing in to Glassity, checking the currently selected account space, and signing out. Glassity is the cloud-cost management service used by the related commands.

In plain words
What is it for?
Use it to log in through a browser, inspect the active tenant, view account and permission details, or clear saved credentials.
Why use it?
It ensures other Glassity operations run under the intended account and have valid credentials.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the glassity plugin — 19 skills, 6 commands, 2 agents shipped together

Good fit Use it to log in through a browser, inspect the active tenant, view account and permission details, or clear saved credentials.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/glassity/agent-skills/glassity-auth
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 glassity/agent-skills --skill glassity-auth
Clone the repo
git clone --depth 1 https://github.com/glassity/agent-skills

Made for: Claude Code.

Or install glassity, the plugin that ships this one along with the rest of its 19 skills, 6 commands, 2 agents.

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 glassity-auth

README.md
[![agentmods](https://agentmods.dev/badge/skills/glassity/agent-skills/glassity-auth/github.svg)](https://agentmods.dev/skills/glassity/agent-skills/glassity-auth)
Your own site
<a href="https://agentmods.dev/skills/glassity/agent-skills/glassity-auth"><img src="https://agentmods.dev/badge/skills/glassity/agent-skills/glassity-auth/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 glassity-auth

Your own site · 80×15
<a href="https://agentmods.dev/skills/glassity/agent-skills/glassity-auth"><img src="https://agentmods.dev/badge/skills/glassity/agent-skills/glassity-auth.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 97 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 783 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00097 $0.00783
Opus 5 $0.00048 $0.00392
Sonnet 5 $0.00019 $0.00157
Haiku 4.5 $0.00010 $0.00078

Measured 12d ago against content hash 5232f6d1e3db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

glassity-auth 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.

skills/glassity-auth/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Glassity authentication

When to use

  • The user says "log in to Glassity", "connect Glassity", "auth with Glassity"
  • The user asks "who am I on Glassity", "which tenant am I using", "show my scopes"
  • The user wants to clear credentials ("log out of Glassity")
  • Any Glassity skill reports not authenticated (exit code 3)

Binary check

Run command -v glassity before the first CLI call. If it is missing, stop and tell the user to install it with brew install glassity/tap/glassity or from https://github.com/glassity/cli/releases. No account yet? Sign up at app.glassity.cloud.

Signing in

glassity auth login

This prints a URL and a short code. The user opens the URL in a browser on any device, signs in, and the credential is written to the OS keychain. Nothing has to launch a browser on this machine, so it works over SSH, in dev containers, and under WSL.

Show the user the printed URL and code verbatim, then wait — the command completes once they finish in the browser.

Checking the active tenant

glassity --output=json auth whoami

Returns the tenant name, account_prefix_id, AWS account ids, scopes, and token expiry. Always repeat the tenant and AWS account back to the user so a wrong-tenant session is caught before anything is read or written.

Headless and CI

A CI runner has no browser and often no keychain. Mint a Personal Access Token in the Glassity web app and pass it through the environment:

export GLASSITY_TOKEN=<pat>
glassity --output=json opp list

GLASSITY_TOKEN takes precedence over the keychain, so nothing is written to disk on the runner.

Where a keychain does exist and the user wants a token stored persistently instead of an OAuth session, pipe the secret so it never reaches argv:

echo "$GLASSITY_PAT" | glassity auth set-token --token=-

The binary validates the token against the API before persisting it, then writes the resolved tenant defaults into the profile so later commands do not need --account.

Read the full file on GitHub · 87 lines

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 · 87 lines · 97 tokens per session scan A 5232f6d1e3db

Subscribe to this mod's changes

glassity-auth is a skill published in the GitHub repository glassity/agent-skills (2 stars, last pushed 29d ago), licensed Apache-2.0. It adds 97 tokens to every session and 783 once invoked, about $0.0005 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 2026-08-31.

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