chain

MANDATORY PREPARATION

Chain Patterns

Chain Design Process

## Chain: [Name]

### Steps
1. [Tool A] — [what it does] — Input: [schema] — Output: [schema]
2. [Tool B] — [what it does] — Input: [output of step 1] — Output: [schema]
3. [Tool C] — [what it does] — Input: [output of step 2] — Output: [schema]

### Data Flow
Step 1 output.field_a → Step 2 input.source_data
Step 2 output.results → Step 3 input.items

### Error Handling
Step 1 failure → [retry 3x, then return error]
Step 2 failure → [return partial results from step 1]
Step 3 failure → [retry with simplified input]

### Constraints
Max total execution time: 60s
Max retries per step: 3

Chain Validation

• Data schemas are compatible between connected steps
• Every step has error handling
• Total chain timeout is set
• Maximum iteration count is set for loops
• Partial results are handled (what if step 2 of 4 fails?)

Recommended Next Step

{{command_prefix}}fortify

{{command_prefix}}evaluate

• Build chains without defining data contracts between steps
• Create loops without maximum iteration counts
• Skip error handling at any step (the chain breaks at the weakest link)
• Assume output of step N is always valid input for step N+1
• Build long chains when a single prompt could handle the task