/gemini-delegation

name: gemini-delegation
description: Delegates to the Gemini CLI. Use when delegation-core selects Gemini or 1M+ token context is needed.
alwaysApply: false
category: delegation-implementation
tags:
- gemini
- cli
- delegation
- google
- large-context
dependencies:
- delegation-core
tools:
- gemini-cli
usage_patterns:
- gemini-cli-integration
- large-context-analysis
- batch-processing
complexity: intermediate
estimated_tokens: 600
progressive_loading: true
modules:
- modules/gemini-specifics.md
references:
- delegation-core/../../leyline/skills/authentication-patterns/SKILL.md
- delegation-core/../../leyline/skills/service-registry/SKILL.md
- delegation-core/../../leyline/skills/error-patterns/SKILL.md

Gemini CLI Delegation

Overview

This skill implements `conjure:delegation-core` for the Gemini CLI. It provides Gemini-specific authentication, quota management, and command construction.

For shared delegation patterns, see `Skill(conjure:delegation-core)`.

When To Use

• After `Skill(conjure:delegation-core)` determines Gemini is suitable
• When you need Gemini's large context window (1M+ tokens)
• For batch processing, summarization, or pattern extraction tasks
• If the `gemini` CLI is installed and authenticated

When NOT To Use

• Choosing which provider to delegate to (use `conjure:delegation-core`)
• Qwen was the selected provider (use `conjure:qwen-delegation`)

Prerequisites

**Installation:**

# Verify installation
gemini --version

# Check authentication
gemini auth status

# Login if needed
gemini auth login

# Or set API key
export GEMINI_API_KEY="your-key"

**Verification:** Run the command with `--help` flag to verify availability.

Quick Start

Basic Command

# File analysis
gemini -p "@path/to/file Analyze this code"

# Multiple files
gemini -p "@src/**/*.py Summarize these files"

# With specific model
gemini --model gemini-3.1-pro-preview -p "..."

# JSON output
gemini --output-format json -p "..."

Save Output

gemini -p "..." > delegations/gemini/$(date +%Y%m%d_%H%M%S).md

Gemini-Specific Details

For Gemini-specific models, CLI options, cost reference, and troubleshooting, see `modules/gemini-specifics.md`.

Exit Criteria

• [ ] `gemini --version` exits 0 before any task is delegated, and a missing

installation is reported and stops execution.

• [ ] Authentication is judged from `GEMINI_API_KEY` and from the delegation's

own exit code, never from `gemini auth status`. That command exits 0 while printing `Error authenticating: ProjectIdRequiredError` over a credential that cannot be used, so its status is not evidence. `delegation-core`'s shared module states the rule: authentication is never decided by running a provider's own CLI.

• [ ] The delegated task output is saved to

`delegations/gemini/YYYYMMDD_HHMMSS.md` (timestamp format matching the Quick Start example), and that file exists on disk after the delegation completes.

• [ ] If `conjure:delegation-core` selected a different provider (Qwen or local), this skill

is not invoked; Gemini delegation only runs when delegation-core explicitly routes to Gemini.

• [ ] Tasks requiring > 1M tokens in context are flagged before submission. The skill reports

the estimated token count and confirms it falls within Gemini's supported window.