# Parallel Agent Contracts

> Parallel Agent Type Contracts

Parallel Agent Type Contracts

- Page: https://ss33.ai/skills/parcadei/parallel-agent-contracts-71676120271
- Publisher: parcadei
- Category: [Software Development](https://ss33.ai/skills/category/software-development-t44z8z) › [Languages & frameworks](https://ss33.ai/skills/category/software-development-t44z8z/languages-and-frameworks-rgvrso)
- License: MIT
- Source: https://github.com/parcadei/continuous-claude-v3/blob/d07ff4b06b62f43771bc0c927d0211b734d6149e/.claude/skills/parallel-agent-contracts/SKILL.md

## Skill

SKILL.md: https://ss33.ai/api/v1/ss33/download/parcadei/parallel-agent-contracts-71676120271

# Parallel Agent Type Contracts

When launching parallel agents for code implementation, prevent type duplication.

## Required in Every Agent Prompt

### 1. Verification Command (MANDATORY)
```markdown
## Before Marking Complete
Run verification:
\`\`\`bash
npx tsc --noEmit 2>&1 | head -20
\`\`\`
If ANY type errors exist, fix them before completing.
```

### 2. Grep-Before-Create
```markdown
## Before Creating Any Type/Interface
First check if it exists:
\`\`\`bash
grep -r "interface YourTypeName\|type YourTypeName" src/
\`\`\`
If found, import it. NEVER duplicate existing types.
```

### 3. Canonical Type Map
Include relevant entries from this map in agent prompts:

| Type | Owner File | Import From |
|------|-----------|-------------|
| `NormalizedTool` | `src/sdk/agent.ts` | `'./agent'` |
| `ToolCall` | `src/sdk/agent.ts` | `'./agent'` |
| `ToolResult` | `src/sdk/agent.ts` | `'./agent'` |
| `ToolDefinition` | `src/sdk/agent.ts` | `'./agent'` |
| `Message` | `src/sdk/types.ts` | `'./types'` |
| `ContentBlock` | `src/sdk/types.ts` | `'./types'` |
| `TokenUsage` | `src/sdk/types.ts` | `'./types'` |
| `ProviderAdapter` | `src/sdk/providers/index.ts` | `'./providers'` |
| `RiggClient` | `src/sdk/client.ts` | `'./client'` |

## Prompt Template

When spawning implementation agents:

```markdown
# Task: [Description]

## Type Ownership (DO NOT recreate)
- [List relevant types from canonical map]

## Before Creating New Types
Run: `grep -r "interface TypeName" src/` - if exists, import it.

## Before Marking Complete
Run: `npx tsc --noEmit 2>&1 | head -20`
Fix all type errors before completing.

## Your Implementation
[Actual task description]
```

## Why This Works

1. **Type checker is the contract** - tsc catches conflicts automatically
2. **Grep is fast** - 1 second to check if type exists
3. **Explicit ownership** - No ambiguity about where types live
4. **Fail fast** - Agent can't claim "done" with broken types