WebSocket Toolkit (googleai_dart)

Uses shared scripts from websocket-toolkit with googleai_dart-specific configuration.

Uses verification scripts from openapi-toolkit.

Prerequisites

• GEMINI_API_KEY or GOOGLE_AI_API_KEY environment variable set
• Working directory: Repository root
• Python 3

Spec Registry

Workflow

1. Fetch Latest Schema

python3 .claude/shared/websocket-toolkit/scripts/fetch_schema.py \
  --config-dir .claude/skills/websocket-toolkit-googleai-dart/config

Output: /tmp/websocket-toolkit-googleai-dart/latest-live.json

2. Analyze Changes

python3 .claude/shared/websocket-toolkit/scripts/analyze_changes.py \
  --config-dir .claude/skills/websocket-toolkit-googleai-dart/config \
  packages/googleai_dart/specs/live-api-schema.json /tmp/websocket-toolkit-googleai-dart/latest-live.json \
  --format all \
  --changelog-out /tmp/websocket-toolkit-googleai-dart/changelog-live.md \
  --plan-out /tmp/websocket-toolkit-googleai-dart/plan-live.md

Generates:

• changelog-live.md - Human-readable change summary
• plan-live.md - Prioritized implementation plan (P0-P4)

3. Implement Changes

Before implementing, read references/implementation-patterns.md for:

• Sealed class structure for messages
• WebSocket connection patterns
• JSON serialization for WebSocket messages

Use templates from ../../shared/websocket-toolkit/assets/:

• sealed_message_template.dart - Sealed class for WebSocket messages
• model_template.dart - Model class structure
• test_template.dart - Unit test structure

3.5 Update Documentation (MANDATORY)

Before running the review checklist:

1. README.md - Add/update Live API section
2. example/ - Create/update live_example.dart
3. CHANGELOG.md - Add entry for new features

4. Review & Validate (MANDATORY)

# Pass 2: Barrel file verification (from shared/openapi-toolkit)
python3 .claude/shared/openapi-toolkit/scripts/verify_exports.py \
  --config-dir .claude/skills/websocket-toolkit-googleai-dart/config

# Pass 3: Documentation completeness
python3 .claude/shared/openapi-toolkit/scripts/verify_readme.py \
  --config-dir .claude/skills/websocket-toolkit-googleai-dart/config
python3 .claude/shared/openapi-toolkit/scripts/verify_examples.py \
  --config-dir .claude/skills/websocket-toolkit-googleai-dart/config
python3 .claude/shared/openapi-toolkit/scripts/verify_readme_code.py \
  --config-dir .claude/skills/websocket-toolkit-googleai-dart/config

# Pass 4: Property-level verification
python3 .claude/shared/openapi-toolkit/scripts/verify_model_properties.py \
  --config-dir .claude/skills/websocket-toolkit-googleai-dart/config

# Dart quality checks (run from packages/googleai_dart)
cd packages/googleai_dart && dart analyze --fatal-infos && dart format --set-exit-if-changed . && dart test test/unit/

5. Testing (MANDATORY)

Test locations:

• Config classes: test/unit/models/live/config/
• Message types: test/unit/models/live/messages/
• Enums: test/unit/models/live/enums/

cd packages/googleai_dart && dart test test/unit/models/live/

6. Finalize

cp /tmp/websocket-toolkit-googleai-dart/latest-live.json packages/googleai_dart/specs/live-api-schema.json
cd packages/googleai_dart && dart test && dart analyze && dart format --set-exit-if-changed .

WebSocket Endpoints

Google AI:

wss://generativelanguage.googleapis.com/v1beta/models/{model}:BidiGenerateContent?key={API_KEY}&alt=ws

Vertex AI:

wss://{location}-aiplatform.googleapis.com/ws/google.cloud.aiplatform.v1beta1.PredictionService.BidiGenerateContent
Authorization: Bearer {ACCESS_TOKEN}

Message Types

Client Messages

• BidiGenerateContentSetup - Initial session configuration
• BidiGenerateContentClientContent - User content/context
• BidiGenerateContentRealtimeInput - Real-time audio/video/text input
• BidiGenerateContentToolResponse - Tool execution responses

Server Messages

• BidiGenerateContentSetupComplete - Session ready confirmation
• BidiGenerateContentServerContent - Model responses
• BidiGenerateContentToolCall - Tool execution requests
• BidiGenerateContentToolCallCancellation - Tool call cancellations
• GoAway - Session ending notification
• SessionResumptionUpdate - Resumption token updates

Package-Specific References

• Implementation Patterns - WebSocket patterns
• Live API Schema - Schema documentation
• Review Checklist - Validation process

Troubleshooting

• API key error: Export GEMINI_API_KEY or GOOGLE_AI_API_KEY
• Network errors: Check connectivity; retry after a few seconds
• No changes detected: Summary shows all zeros; no action needed