gemini

gemini is a skill for Claude Code, Codex from spinabot/brigade. It costs 17 tokens per session (232 once invoked), scanned A, original, MIT.

Instructions for using the Gemini command-line tool for one-off questions, summaries, and generated content. A command-line tool is a program run from a terminal.

In plain words
What is it for?
Use it for short Q&A, summarization, or generation tasks from the terminal, including requests that need structured JSON output.
Why use it?
It provides a consistent way to send a prompt to Gemini, choose a model, request JSON output, and handle sign-in when needed.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Gemini CLI.

Good fit Use it for short Q&A, summarization, or generation tasks from the terminal, including requests that need structured JSON output.

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Install with agentmods
npx agentmods add skills/spinabot/brigade/gemini
About the project

Brigade is an ecosystem for running crews of AI agents as a personal intelligence system, with local handling of credentials and support for exposing agent crews to the internet for testing. It is for people who want to organize and operate multiple AI agents using their own API keys or existing Claude, ChatGPT, Copilot, Claude Code, or Codex access. The catalogue skills provide workflows for using Brigade and its agent ecosystem.

spinabot/brigade · 11,347 stars · on GitHub · brigade.spinabot.com

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 spinabot/brigade --skill gemini
Clone the repo
git clone --depth 1 https://github.com/spinabot/brigade

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.

agentmods badge for gemini

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/spinabot/brigade/gemini"><img src="https://agentmods.dev/badge/skills/spinabot/brigade/gemini.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 232 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 $0.00017 $0.00232
Opus 5.5 $0.00007 $0.00093
Sonnet 5.5 $0.00003 $0.00046
Haiku 4.5 $0.00002 $0.00023

Measured 1mo ago against content hash 45df4bab544f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gemini 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.

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.

Origin

Copies of this mod

8 near-identical copies found in the catalogue:

  • gemini — 92% identical, 4 lines differ
  • gemini — 91% identical, 4 lines differ
  • gemini — 91% identical, 4 lines differ
  • gemini — 91% identical, 4 lines differ
  • gemini — 89% identical, 6 lines differ
  • gemini — 88% identical, 4 lines differ
  • gemini — 88% identical, 4 lines differ
  • gemini — 88% identical, 4 lines differ
skills/gemini/SKILL.md · 44 lines

What it actually says

Gemini CLI

Use Gemini in one-shot mode with a positional prompt (avoid interactive mode).

Quick start

  • gemini "Answer this question..."
  • gemini --model <name> "Prompt..."
  • gemini --output-format json "Return JSON"

Extensions

  • List: gemini --list-extensions
  • Manage: gemini extensions <command>

Notes

  • If auth is required, run gemini once interactively and follow the login flow.
  • Avoid --yolo for safety.
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. 1mo ago First seen · 44 lines · 17 tokens per session scan A 45df4bab544f

Subscribe to this mod's changes

gemini is a skill published in the GitHub repository spinabot/brigade (11,347 stars, last pushed 4d ago), licensed MIT. It adds 17 tokens to every session and 232 once invoked, about $0.0001 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.