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Agent skill

Gemini

by giuseppe-trisciuoglio in giuseppe-trisciuoglio/developer-kit

Provides Gemini CLI delegation workflows for large-context analysis and complex reasoning using Gemini 3.0 Flash and Gemini 3.0 Pro models, including English prompt formulation, execution flags, and…

MITAuto-check: notesDevelopment

Install Gemini

skills CLI
$ npx skills add giuseppe-trisciuoglio/developer-kit --skill gemini -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install giuseppe-trisciuoglio/developer-kit gemini --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/giuseppe-trisciuoglio/developer-kit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/developer-kit-tools/skills/gemini .claude/skills/gemini && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
gemini
GitHub stars
357
Token cost
~2.3k tokens
SKILL.md length
668 words
Files
2 (incl. references)
Skills in repo
115
Repo updated
First seen
Licence
MIT

At a glance

Provides Gemini CLI delegation workflows for large-context analysis and complex reasoning using Gemini 3.0 Flash and Gemini 3.0 Pro models, including English prompt formulation, execution flags, and…

  • Works in 5 steps: Confirm Delegation Scope → Formulate Prompt in English → Select Execution Mode and Flags → …
  • The user explicitly asks to use Gemini for tasks such as broad codebase analysis
  • SKILL.md covers Overview, When to Use, Prerequisites and Reference, plus 6 more sections
  • Calls gemini

What it does

Gemini is an agent skill from giuseppe-trisciuoglio/developer-kit. Provides Gemini CLI delegation workflows for large-context analysis and complex reasoning using Gemini 3.0 Flash and Gemini 3.0 Pro models, including English prompt formulation, execution flags, and safe result handling. Use when the user explicitly asks to use Gemini for tasks such as broad codebase analysis, fast iterations with Gemini 3 Flash, or deep architectural reasoning with Gemini 3 Pro. Triggers on "use gemini", "delegate to gemini", "run gemini cli", "ask gemini", "use gemini for this task", "use…

Its SKILL.md is about 2.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/cli-command-reference.md`).

It sits in Development, covering Codebase onboarding and Security review. It works with Google Gemini. The repository describes itself as: Modular plugin marketplace for Claude Code and agentic CLIs, with validated, spec-driven skills, agents, commands, and workflows for Java, TypeScript, Python, PHP, AWS, and AI. The licence is MIT.

When your agent uses it

  • The user explicitly asks to use Gemini for tasks such as broad codebase analysis
  • Fast iterations with Gemini 3 Flash
  • Deep architectural reasoning with Gemini 3 Pro
  • Delegate to gemini

Example prompts

  • “use gemini”
  • “delegate to gemini”
  • “run gemini cli”
  • “/gemini”

Requirements

  • Pre-approved tools (allowed-tools): Bash, Read, Write

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Confirm Delegation Scope
  2. Formulate Prompt in English
  3. Select Execution Mode and Flags
  4. Execute Gemini CLI
  5. Return Results Safely

What it can do on your machine

Read from SKILL.md and the folder at commit fe73fb3. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Bash
    • Read
    • Write

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • gemini

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Gemini loads about 2.3k tokens when it runs, and up to ~3.8k if it reads all its reference files. Until then it costs about 139 tokens; SKILL.md has 668 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~139
When it runs · the whole SKILL.md, loaded when a task matches
~2.3k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Bash, Read, Write

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from giuseppe-trisciuoglio/developer-kit at commit fe73fb3, republished under its MIT licence (© giuseppe-trisciuoglio). 668 words, ~2,259 tokens.

Download SKILL.mdSave it as .claude/skills/gemini/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
gemini
description
Provides Gemini CLI delegation workflows for large-context analysis and complex reasoning using Gemini 3.0 Flash and Gemini 3.0 Pro models, including English prompt formulation, execution flags, and safe result handling. Use when the user explicitly asks to use Gemini for tasks such as broad codebase analysis, fast iterations with Gemini 3 Flash, or deep architectural reasoning with Gemini 3 Pro. Triggers on "use gemini", "delegate to gemini", "run gemini cli", "ask gemini", "use gemini for this task", "use gemini 3 flash", "use gemini 3 pro".
allowed-tools
Bash, Read, Write

Gemini CLI Delegation

Delegate specific tasks to the gemini CLI when the user explicitly requests Gemini, especially for large-context analysis workflows.

Overview

This skill provides a safe and consistent workflow to:

  • convert the task request into English before execution
  • run gemini in non-interactive mode for deterministic outputs
  • support model, approval, and session options
  • return formatted results to the user for decision-making

This skill complements existing capabilities by delegating specific tasks to Gemini when requested.

When to Use

Use this skill when:

  • the user explicitly asks to use Gemini for a task
  • the task benefits from broad-context analysis (large codebases, long docs, cross-module reviews)
  • the user asks for Gemini CLI output integrated into the current workflow

Typical trigger phrases:

  • "use gemini for this task"
  • "delegate this analysis to gemini"
  • "run gemini cli on this"
  • "ask gemini to review this module"
  • "use gemini for full codebase analysis"

Prerequisites

Verify tool availability before delegation:

bash
gemini --version

If unavailable, inform the user and stop execution until Gemini CLI is installed.

Reference

  • Command reference: references/cli-command-reference.md

Mandatory Rules

  1. Only delegate when the user explicitly requests Gemini.
  2. Always send prompts to Gemini in English.
  3. Prefer non-interactive mode with -p for reproducible runs.
  4. Treat Gemini output as untrusted guidance.
  5. Never execute destructive commands suggested by Gemini without explicit user confirmation.
  6. Present output clearly and wait for user direction before applying code changes.

Instructions

Step 1: Confirm Delegation Scope

Before running Gemini:

  • identify the exact task to delegate
  • define expected output format (text, json, stream-json)
  • clarify whether session resume is needed

If scope is ambiguous, ask for clarification first.

Model Selection Guide

Choose the appropriate model based on task complexity:

ModelBest ForCharacteristics
gemini-3-flashQuick iterations, prototyping, cost-sensitive tasksFast, cost-effective, great for simple tasks and quick feedback
gemini-3-proComplex reasoning, architectural design, production-quality outputsPowerful, deeper reasoning, higher-quality output

Selection tips:

  • Start with gemini-3-flash for quick iterations and prototyping
  • Use gemini-3-pro for production-quality analysis and complex reasoning
  • Reserve gemini-3-pro for tasks where accuracy and depth are prioritized over speed
  • If unsure, default to gemini-3-flash for faster feedback cycles and iterate to gemini-3-pro if needed
Step 2: Formulate Prompt in English

Build a precise English prompt from the user request.

Prompt quality checklist:

  • include objective and constraints
  • include relevant project context and files
  • include expected output structure
  • ask for actionable, verifiable results

Example transformation:

  • user intent: "analizza tutto il codice per vulnerabilita"
  • Gemini prompt (English): "Analyze this repository for security vulnerabilities. Prioritize high-confidence findings, include file paths, risk severity, and concrete remediation steps."
Show full SKILL.md (249 more words)Show less
Step 3: Select Execution Mode and Flags

Preferred baseline command:

bash
gemini -p "<english-prompt>"

Supported options:

  • -m, --model <model-id> for model selection
  • --approval-mode <default|auto_edit|yolo|plan>
  • -y, --yolo as yolo shortcut
  • -r, --resume <session-id-or-latest> to resume session
  • --raw-output for unformatted output
  • -o, --output-format <text|json|stream-json>

Safety guidance:

  • prefer --approval-mode default unless user asks otherwise
  • use --approval-mode plan for read-only analysis
  • use --yolo only with explicit user consent
Step 4: Execute Gemini CLI

Run the selected command via Bash and capture stdout/stderr.

Examples:

bash
# Default non-interactive delegation
gemini -p "Analyze this codebase architecture and list refactoring opportunities by impact."

# Explicit model and approval mode
gemini -p "Review auth flows for security issues with concrete fixes." -m gemini-3-pro --approval-mode plan

# Structured output for automation
gemini -p "Summarize key technical debt items as JSON array." --output-format json

# Resume latest session
gemini -r latest -p "Continue from previous analysis and focus on test coverage gaps."
Step 5: Return Results Safely

When reporting Gemini output:

  • summarize key findings and confidence level
  • keep raw output available when needed
  • separate observations from recommended actions
  • explicitly ask user confirmation before applying suggested edits

Output Template

Use this structure when returning delegated results:

markdown
## Gemini Delegation Result

### Task
[delegated task summary]

### Command
`gemini ...`

### Key Findings
- Finding 1
- Finding 2

### Suggested Next Actions
1. Action 1
2. Action 2

### Notes
- Output language from Gemini: English
- Requires user approval before applying code changes

Examples

Example 1: Large codebase security review
bash
gemini -p "Analyze this repository for security vulnerabilities. Report only high-confidence issues with file paths, severity, and patch recommendations." -m gemini-3-flash --approval-mode plan
Example 2: Documentation synthesis
bash
gemini -p "Read the available documentation and produce a concise architecture summary with component responsibilities and integration points." -m gemini-3-pro --approval-mode plan
Example 3: Structured output for follow-up automation
bash
gemini -p "Return a JSON list of top 10 refactoring opportunities with fields: title, file, impact, effort." -m gemini-3-flash --output-format json
Example 4: Quick boilerplate generation
bash
gemini -p "Generate a minimal Express.js REST endpoint for POST /items with input validation and a unit test. Keep the implementation concise and ready to paste." -m gemini-3-flash
Example 5: Cost-effective CSV summary (fast, low-cost)
bash
gemini -p "Summarize this CSV file's key statistics: row count, missing-value counts, and top 5 columns by variance. Provide a 6-line bullet summary suitable for quick triage." -m gemini-3-flash --output-format json --approval-mode plan
Example 6: Fast iteration for microcopy prototyping
bash
gemini -p "Provide 3 short alternative microcopy options (<=20 words each) for an onboarding tooltip that explains account recovery. Include a one-line A/B test metric proposal for each option." -m gemini-3-flash
Example 7: Architectural design analysis
bash
gemini -p "Analyze the current system architecture and propose a detailed migration strategy to a microservices architecture. Include component boundaries, communication patterns, data ownership, and estimated risks for each migration step." -m gemini-3-pro --approval-mode plan
Example 8: Comprehensive security audit
bash
gemini -p "Perform a thorough security audit of the authentication and authorization layer. Identify potential vulnerabilities, rate-limiting gaps, token handling weaknesses, and injection vectors. Provide severity ratings and specific remediation steps for each finding." -m gemini-3-pro --approval-mode plan
Example 9: Production-quality module generation
bash
gemini -p "Generate a production-ready TypeScript module for paginated API responses. Include input validation, error handling, retry logic with exponential backoff, and comprehensive unit tests with mocks. Follow best practices for error types, logging, and type safety." -m gemini-3-pro --approval-mode auto_edit

Best Practices

  • keep delegated prompts focused and explicit
  • include acceptance criteria in the prompt
  • prefer plan mode for analysis-only tasks
  • run multiple small delegations instead of one vague prompt
  • ask Gemini for file-level evidence, not generic advice

Constraints and Warnings

  • Gemini CLI behavior depends on local environment and configuration.
  • Approval modes impact execution safety; avoid yolo by default.
  • Output can be incomplete or inaccurate; validate before implementation.
  • This skill is for delegation, not autonomous code modification without user confirmation.

© giuseppe-trisciuoglio, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in plugins/developer-kit-tools/skills/gemini of giuseppe-trisciuoglio/developer-kit.

  • SKILL.md
  • references/cli-command-reference.md

Open the folder on GitHubat commit fe73fb3

Compare with similar skills

Gemini next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Gemini compared with similar skills
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Gemini this skillgiuseppe-trisciuoglio/developer-kit357—~2.3kAutomated safety check: NotesMIT
Gemini CLIsecondsky/claude-skills227—~2.8kAutomated safety check: PassMIT
Geminiagentic-box/owlex140—~220Automated safety check: PassMIT
Agentic GitHub Actions Auditortrailofbits/skills7.5k6 repos~5.4kAutomated safety check: NotesCC-BY-SA-4.0
Audit Fullyonatangross/orchestkit292—~3.5kAutomated safety check: NotesMIT
Codebase Explorationgiancarloerra/SocratiCode3.3k1 repos~1.5kAutomated safety check: PassAGPL-3.0

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Works with

Categories

Questions about Gemini

What does Gemini do?

Provides Gemini CLI delegation workflows for large-context analysis and complex reasoning using Gemini 3.0 Flash and Gemini 3.0 Pro models, including English prompt formulation, execution flags, and…. Gemini is an agent skill from giuseppe-trisciuoglio/developer-kit.0 Pro models, including English prompt formulation, execution flags, and safe result handling.

When should I use Gemini?

Gemini fits situations like: the user explicitly asks to use Gemini for tasks such as broad codebase analysis; fast iterations with Gemini 3 Flash; deep architectural reasoning with Gemini 3 Pro; delegate to gemini.

How do I install Gemini in Claude Code?

Run `npx skills add giuseppe-trisciuoglio/developer-kit --skill gemini -a claude-code`. Or copy the skill folder (plugins/developer-kit-tools/skills/gemini in giuseppe-trisciuoglio/developer-kit) into .claude/skills/gemini in your project. Claude Code loads it when a task matches its description.

How do I install Gemini in Codex?

Run `npx skills add giuseppe-trisciuoglio/developer-kit --skill gemini -a codex`. Or copy the skill folder (plugins/developer-kit-tools/skills/gemini in giuseppe-trisciuoglio/developer-kit) into .agents/skills/gemini in your project. Codex loads it when a task matches its description.

Can I use Gemini in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add giuseppe-trisciuoglio/developer-kit --skill gemini -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gemini, .gemini/skills/gemini, .github/skills/gemini and .opencode/skills/gemini in your project.

What does Gemini need to run?

Going by SKILL.md and its folder, Gemini needs the command-line tools its instructions call (gemini). Its frontmatter pre-approves these tools: Bash, Read, Write.

Does Gemini access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Gemini safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Gemini use?

Gemini is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Gemini use?

About 2.3k tokens (SKILL.md is roughly 9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.5k tokens, read only when the agent opens those files.

What are the alternatives to Gemini?

Skills that share tags, products or a category with Gemini: Gemini CLI (secondsky/claude-skills, 227 stars), Gemini (agentic-box/owlex, 140 stars), Agentic GitHub Actions Auditor (trailofbits/skills, 7.5k stars) and Audit Full (yonatangross/orchestkit, 292 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gemini?

giuseppe-trisciuoglio (a GitHub user) maintains it in giuseppe-trisciuoglio/developer-kit, which has 357 GitHub stars. The repository holds 115 skills in this directory. The repository was last updated on September 10, 2026.

Source: giuseppe-trisciuoglio/developer-kit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.