modify-agent-prompts

name	modify-agent-prompts
description	Modify the review-item-processor agent's prompts, model configuration, confidence thresholds, JSON output schemas, and tool setup. Use when changing document or image review prompts, adjusting model IDs, modifying output format, updating citation settings, or adding new tools to the agent.

Modify Agent Prompts and Configuration

Agent Architecture

review-item-processor/
├── agent.py               # Prompt generators + agent execution
├── model_config.py        # Model registry with capabilities
├── tools/
│   ├── factory.py         # Dynamic tool creation
│   ├── knowledge_base.py  # Bedrock KB integration
│   ├── code_interpreter.py
│   └── mcp_tool.py        # MCP tool support
└── index.py               # Lambda handler entry point

Common Modifications

1. Modifying Document Review Prompts

File: agent.py

Key functions:

• get_document_review_prompt() - Main entry point
• _get_document_review_prompt_with_citations() - With citations
• _get_document_review_prompt_legacy() - Without citations

JSON Schema:

{
  "result": "pass" | "fail",
  "confidence": <number 0-1>,
  "explanation": "<detailed reasoning>",
  "shortExplanation": "<max 80 chars>",
  "pageNumber": <integer from 1>,
  "citations": ["<quoted text>", ...]
}

2. Modifying Image Review Prompts

File: agent.py, function get_image_review_prompt()

JSON Schema (Nova models add boundingBoxes):

{
  "result": "pass" | "fail",
  "confidence": <number 0-1>,
  "explanation": "<detailed reasoning>",
  "shortExplanation": "<max 80 chars>",
  "usedImageIndexes": [<list of indexes>]
}

3. Model Configuration

Environment Variables (set in CDK):

• DOCUMENT_PROCESSING_MODEL_ID, IMAGE_REVIEW_MODEL_ID, BEDROCK_REGION
• ENABLE_CITATIONS, ENABLE_CODE_INTERPRETER

Change models via CDK:

cdk deploy -c rapid.documentProcessingModelId="global.anthropic.claude-opus-4-6-v1"

Add new model to model_config.py in _get_model_configs():

"model-id": ModelConfig(
    model_id="model-id",
    supports_document_block=True,
    supports_citation=True,
    supports_caching=True,
    input_per_1k=0.XXX,
    output_per_1k=0.XXX,
)

4. Adding New Environment Variables

1. Define in cdk/lib/parameter-schema.ts
2. Pass to Lambda in cdk/lib/constructs/agent.ts
3. Read in agent.py with os.environ.get()

5. Adding New Tools

For detailed tool creation guide, see references/TOOL-CREATION.md.

Quick Reference

Modification	Location	Search For
Document prompt schema	agent.py	_get_document_review_prompt
Image prompt schema	agent.py	get_image_review_prompt
Confidence guidelines	agent.py	confidence_guidelines
Tool usage instructions	agent.py	_build_tool_usage_section
Model capabilities	model_config.py	_get_model_configs
Environment variables	CDK agent.ts	environment:

Troubleshooting

Issue	Check
Citations not working	ENABLE_CITATIONS env var, model supports citations in model_config.py
Model not found	Model ID format, available in BEDROCK_REGION, added to model_config.py
Tool not available	Tool configuration in event payload, registered in factory.py
Wrong output format	JSON schema in prompt, {language_name} placeholders

After Modification

1. Run /build-and-format if Python code changed
2. Run /deploy-cdk-stack if CDK changes made
3. Test with sample documents and monitor CloudWatch logs