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gemini

Use Gemini CLI for single-request answers, text generation, and summaries of supplied file content. Choose a model, request JSON output, and access commands for managing extensions, skills, hooks, and MCP connections used to connect external tools.

OriginalShow the original description

Gemini CLI one-shot prompts, summaries, generation, skills, hooks, MCP, or Gemma routing.

AI rating90/ 100See how to install

Good for

  • Summarizing a notes file
  • Generating text from a single prompt
  • Requesting an answer in JSON format
  • Listing extensions and managing skills

Overview

What it does

This skill uses Gemini CLI to answer questions, generate text, and summarize supplied text in a single request. It explains commands that run without opening the interactive interface, including how to choose a model and request JSON output. It also introduces commands for listing extensions and managing skills, hooks—mechanisms triggered by processing events—and MCP connections for external tools.

When it helps

Use it when you want to summarize a notes file or generate a piece of text from one request. You can pass file content through standard input and process it together with a prompt. It also helps when you need to specify the response format or select the model used for the request.

Example requests

  • “Send notes.md to Gemini CLI and summarize it.”
  • “Return the answer to this question in JSON format.”
  • “List the installed extensions.”

Notes

The gemini command is required. The material provides an installation method using Homebrew’s gemini-cli package. Use -p/--prompt for a single request; placing text directly in positional arguments starts interactive mode. If authentication is required, launch interactive mode once and sign in.

This overview was written by AI (OpenAI Codex) from the public SKILL.md. Check the original below for the exact behavior.

Objective evaluation

AI rated this skill on four points using only the contents of its SKILL.md. Stars and popularity are not taken into account.

Clear instructionsIs it clear when to use it and what it does?
AGoodThe material states the single-request use case and specifies -p/--prompt to avoid interactive mode.
Concrete stepsAre steps, inputs, outputs, and examples spelled out?
AGoodCommand examples cover model selection, JSON output, and passing notes.md through standard input.
SafetyAre sending data, deleting files, and running commands disclosed?
BPartly lackingAn example passes notes.md to Gemini, but no procedure checks the content before submission.
Easy setupDoes it need few tools or API keys, and are they documented?
AGoodThe required gemini command, Homebrew installation method, and login procedure are provided.

The total counts each point as A = 25, B = 15, C = 5. Rated by AI (OpenAI Codex) as of Oct 19, 2026. Treat it as a guide and read the original before installing.

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Files included (1)

  • SKILL.md1.1 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Gemini CLI

Use Gemini in headless one-shot mode. Positional text starts interactive mode; use -p/--prompt.

Quick start

  • gemini -p "Answer this question..."
  • gemini -m <model> -p "Prompt..."
  • gemini -p "Return JSON" --output-format json
  • stdin appends to -p: cat notes.md | gemini -p "Summarize"

Extensions

  • List: gemini --list-extensions
  • Manage: gemini extensions <command>
  • Skills: gemini skills <command>
  • Hooks: gemini hooks <command>
  • MCP: gemini mcp <command>

Notes

  • If auth is required, run gemini once interactively and follow the login flow.

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