name: vibe-step-3-shared-types description: Create shared TypeScript types in src/types/common.ts disable-model-invocation: true allowed-tools: Read, Write

Step 3: Shared Types

Define all shared TypeScript types that components will consume.

Prerequisites

Read docs/orchestration/progress.json and verify:

• step-1b-init-project status is completed

If not, tell the user to run /vibe-step-1b-init-project first.

Reference Docs

Read this for type definitions:

• docs/orchestration/06-technical-specifications.md — Shared types section

Step 1: Write Common Types

Write src/types/common.ts with all shared types from 06-technical-specifications.md:

/** Status of an individual agent step */
export type AgentStepStatus = 'pending' | 'active' | 'completed' | 'failed';

/** Overall agent operational status */
export type AgentStatus = 'idle' | 'running' | 'completed' | 'failed' | 'waiting' | 'connecting';

/** Semantic confidence level derived from numeric score */
export type ConfidenceLevel = 'low' | 'medium' | 'high';

/** Status of a human approval gate */
export type ApprovalStatus = 'pending' | 'approved' | 'rejected' | 'expired';

/** Represents a single step in an agent workflow */
export interface AgentStep {
  id: string;
  status: AgentStepStatus;
  label: string;
  description?: string;
  confidence?: number; // 0-100
  timestamp?: Date;
  reasoning?: string;
  errorMessage?: string;
}

/** Utility: derive confidence level from numeric score */
export function getConfidenceLevel(score: number): ConfidenceLevel {
  if (score >= 80) return 'high';
  if (score >= 40) return 'medium';
  return 'low';
}

Step 2: Update Entry Point

Read src/index.ts and add type re-exports:

export type { AgentStep, AgentStepStatus, AgentStatus, ConfidenceLevel, ApprovalStatus } from './types/common';
export { getConfidenceLevel } from './types/common';

Step 3: Update Progress

Read docs/orchestration/progress.json, set globalSteps.step-3-shared-types.status to "completed", set completedAt to current ISO timestamp, update lastUpdated, write back.

Exit Criteria

• src/types/common.ts exports all shared types: AgentStepStatus, AgentStatus, ConfidenceLevel, ApprovalStatus, AgentStep, getConfidenceLevel
• src/index.ts re-exports all types
• No any types used
• All types have JSDoc comments
• Progress updated
• Confirm to user: "Shared types created. If step 2 is also done, run /vibe-step-4-component PlanCard next."