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tui-tester

Expert guidance for testing Gemini CLI behavior and visual output using terminal automation.

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UpdatedMay 18, 2026 at 15:46

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google-gemini

google-gemini/gemini-cli

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Software Quality Assurance Analysts and TestersComputer and Mathematical Occupations15-1253L4

SKILL.md

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name	tui-tester
description	Expert guidance for testing Gemini CLI behavior and visual output using terminal automation.

TUI Tester Skill

This skill provides the operational manual for verifying Gemini CLI behavioral changes and visual output using terminal automation.

Core Responsibilities

Verify Behavior: Confirm that code changes result in the expected terminal interactions.
Visual Validation: Ensure the TUI renders correctly across different terminal sizes and states.
Regression Testing: Use automation to prevent breaking existing interactive workflows.

Critical Protocol

When performing TUI testing, you must adhere to these strict rules:

1. Initialization

YOUR ABSOLUTE FIRST ACTION MUST BE: Activate the agent-tui skill. This provides the underlying tools needed for terminal automation.

2. Environment Setup (macOS / Parallel Safe)

Ensure the global daemon is running and the live preview is open:

if ! agent-tui sessions >/dev/null 2>&1; then
  tmux kill-session -t agent-tui 2>/dev/null || true
  agent-tui daemon stop 2>/dev/null || true
  rm -f /tmp/agent-tui*
  tmux new-session -d -s agent-tui 'agent-tui daemon start --foreground > /tmp/agent-tui-daemon.log 2>&1'
  sleep 1
fi
agent-tui live start --open

3. Session Management

Session IDs: Always use the session_id returned by agent-tui run for subsequent interactions.
Atomic Execution: Execute exactly one command per turn. Do not pipeline actions.
The Loop: Action -> Wait -> Screenshot -> Verify -> Next Action.

4. Gemini CLI Specifics

Build First: Always run npm run build or npm run build:all before testing local changes.
Bypass Trust: Set GEMINI_CLI_TRUST_WORKSPACE=true to avoid focus-stealing modals.
Isolate Config: Use GEMINI_CLI_HOME to prevent interference with your personal settings.

Workflow Example

# Start the CLI
env GEMINI_CLI_TRUST_WORKSPACE=true agent-tui run node packages/cli/dist/index.js

# Wait for the prompt
agent-tui wait "│" --assert

# Send a command
agent-tui type "/help"
agent-tui press Enter

# Verify output
agent-tui wait "Available Commands" --assert

Error Recovery

If a wait times out, take a fresh screenshot to diagnose the state. If you see os error 61, restart the daemon using the tmux method.

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TUI Tester Skill

This skill provides the operational manual for verifying Gemini CLI behavioral changes and visual output using terminal automation.

Core Responsibilities

Verify Behavior: Confirm that code changes result in the expected terminal interactions.

Visual Validation: Ensure the TUI renders correctly across different terminal sizes and states.

Regression Testing: Use automation to prevent breaking existing interactive workflows.

Critical Protocol

When performing TUI testing, you must adhere to these strict rules:

1. Initialization

YOUR ABSOLUTE FIRST ACTION MUST BE: Activate the agent-tui skill. This provides the underlying tools needed for terminal automation.

2. Environment Setup (macOS / Parallel Safe)

Ensure the global daemon is running and the live preview is open:

if ! agent-tui sessions >/dev/null 2>&1; then tmux kill-session -t agent-tui 2>/dev/null || true agent-tui daemon stop 2>/dev/null || true rm -f /tmp/agent-tui* tmux new-session -d -s agent-tui 'agent-tui daemon start --foreground > /tmp/agent-tui-daemon.log 2>&1' sleep 1 fi agent-tui live start --open

3. Session Management

Session IDs: Always use the session_id returned by agent-tui run for subsequent interactions.

Atomic Execution: Execute exactly one command per turn. Do not pipeline actions.

The Loop: Action -> Wait -> Screenshot -> Verify -> Next Action.

4. Gemini CLI Specifics

Build First: Always run npm run build or npm run build:all before testing local changes.

Bypass Trust: Set GEMINI_CLI_TRUST_WORKSPACE=true to avoid focus-stealing modals.

Isolate Config: Use GEMINI_CLI_HOME to prevent interference with your personal settings.

Workflow Example

# Start the CLI env GEMINI_CLI_TRUST_WORKSPACE=true agent-tui run node packages/cli/dist/index.js # Wait for the prompt agent-tui wait "│" --assert # Send a command agent-tui type "/help" agent-tui press Enter # Verify output agent-tui wait "Available Commands" --assert

Error Recovery

If a wait times out, take a fresh screenshot to diagnose the state. If you see os error 61, restart the daemon using the tmux method.