authenticating-looker-cli

authenticating-looker-cli is a skill for Claude Code from looker-open-source/looker-skills. It costs 45 tokens per session (856 once invoked), scanned A, original, Apache-2.0.

A setup guide for signing the Looker command-line tool into a Looker account using OAuth, a browser-based login method.

In plain words
What is it for?
Use it after installing and checking the Looker command-line tool to create a connection profile and complete browser authorization.
Why use it?
It removes the need to work out how to connect the command-line tool to a specific Looker server and save the login settings.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the looker-skills plugin — 23 skills shipped together

Good fit Use it after installing and checking the Looker command-line tool to create a connection profile and complete browser authorization.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/looker-open-source/looker-skills/authenticating-looker-cli
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 looker-open-source/looker-skills --skill authenticating-looker-cli
Clone the repo
git clone --depth 1 https://github.com/looker-open-source/looker-skills

Made for: Claude Code.

Or install looker-skills, the plugin that ships this one along with the rest of its 23 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 authenticating-looker-cli

README.md
[![agentmods](https://agentmods.dev/badge/skills/looker-open-source/looker-skills/authenticating-looker-cli/github.svg)](https://agentmods.dev/skills/looker-open-source/looker-skills/authenticating-looker-cli)
Your own site
<a href="https://agentmods.dev/skills/looker-open-source/looker-skills/authenticating-looker-cli"><img src="https://agentmods.dev/badge/skills/looker-open-source/looker-skills/authenticating-looker-cli/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 authenticating-looker-cli

Your own site · 80×15
<a href="https://agentmods.dev/skills/looker-open-source/looker-skills/authenticating-looker-cli"><img src="https://agentmods.dev/badge/skills/looker-open-source/looker-skills/authenticating-looker-cli.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 856 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Rogue Agent · line 28
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 $0.00045 $0.00856
Opus 5 $0.00023 $0.00428
Sonnet 5 $0.00009 $0.00171
Haiku 4.5 $0.00005 $0.00086

Measured 10d ago against content hash 3d431e9b162c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

authenticating-looker-cli 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 10d 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/authenticating-looker-cli/SKILL.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Authenticating Looker CLI

Authenticates the Looker CLI to a Looker instance using OAuth and saves the session configuration in a named profile.

Prerequisites

  • Looker CLI must be installed (see installing-looker-cli skill).
  • You must know the Looker instance URL (host and API port). Generically, the API port is 443 for Looker Core / Google Cloud Core.

Instructions

1. Configure a Named Profile

Create a new profile named default to save your connection details:

looker-cli profile add default --host {instance_host} --port {instance_port}

Set this new profile as your default configuration:

looker-cli profile use default

2. Trigger OAuth Login

Run the login command in the background (since it requires interactive browser authorization):

looker-cli session login --oauth

3. Retrieve the Authorization URL

Monitor the background login task log or stdout to extract the generated login URL. Looker CLI will output:

Opening browser to URL: followed by a long URL.

4. Instruct the User (Interactive Step)

Present the login URL to the user and instruct them:

"Please open the following URL in your browser, log in to Looker, and authorize the CLI:

URL: {auth_url}

If you are running on a local desktop machine, the login should complete automatically once authorized. If you are on a remote server/headless workspace, the browser will show a page load error or try to redirect to http://127.0.0.1:7777/?code=.... Please copy the entire redirected URL from your browser's address bar and paste it back into the terminal prompt."

5. Handle the OAuth Response

  • Scenario A (Automatic): If the user completes authentication and the CLI is listening locally on port 7777, the login command task will finish successfully.
  • Scenario B (Headless Fallback): The background process will print: Paste redirected URL here: If the user pastes the redirected URL, use manage_task with send_input to pass the pasted URL directly to the background login task.

Read the full file on GitHub · 111 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. 10d ago First seen · 111 lines · 45 tokens per session scan A 3d431e9b162c

Subscribe to this mod's changes

authenticating-looker-cli is a skill published in the GitHub repository looker-open-source/looker-skills (28 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 45 tokens to every session and 856 once invoked, about $0.0002 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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