Feature Flagging

Feature Flagging Skill

Overview

Specialized skill for feature flag configuration and rollout planning. Enables product teams to plan and manage controlled feature releases with proper targeting, monitoring, and rollback strategies.

Capabilities

Flag Design

• Generate feature flag specifications
• Design flag naming conventions
• Create flag documentation templates
• Define flag types (release, experiment, ops, permission)
• Plan flag dependencies and interactions

Rollout Planning

• Design rollout percentage strategies
• Create flag targeting rules
• Plan canary and gradual rollouts
• Define geographic or segment-based rollouts
• Create rollout schedules

Operations

• Generate kill switch procedures
• Track flag lifecycle and cleanup
• Monitor flag impact on metrics
• Plan flag deprecation
• Create incident response procedures

Target Processes

This skill integrates with the following processes:

• product-launch-gtm.js - Feature flag rollout for launches
• beta-program.js - Beta feature flagging
• conversion-funnel-analysis.js - A/B test flag management

Input Schema

{
  "type": "object",
  "properties": {
    "mode": {
      "type": "string",
      "enum": ["design", "rollout", "audit", "deprecate"],
      "description": "Operation mode"
    },
    "feature": {
      "type": "object",
      "properties": {
        "name": { "type": "string" },
        "description": { "type": "string" },
        "type": { "type": "string", "enum": ["release", "experiment", "ops", "permission"] },
        "owner": { "type": "string" },
        "impactLevel": { "type": "string", "enum": ["low", "medium", "high", "critical"] }
      }
    },
    "rolloutStrategy": {
      "type": "object",
      "properties": {
        "type": { "type": "string", "enum": ["percentage", "segment", "geographic", "gradual"] },
        "stages": { "type": "array", "items": { "type": "object" } },
        "criteria": { "type": "object" }
      }
    },
    "existingFlags": {
      "type": "array",
      "items": { "type": "object" },
      "description": "Existing flags for audit or cleanup"
    }
  },
  "required": ["mode"]
}

Output Schema

{
  "type": "object",
  "properties": {
    "flagSpec": {
      "type": "object",
      "properties": {
        "key": { "type": "string" },
        "name": { "type": "string" },
        "description": { "type": "string" },
        "type": { "type": "string" },
        "defaultValue": { "type": "boolean" },
        "variations": { "type": "array", "items": { "type": "object" } },
        "targetingRules": { "type": "array", "items": { "type": "object" } },
        "prerequisites": { "type": "array", "items": { "type": "string" } }
      }
    },
    "rolloutPlan": {
      "type": "object",
      "properties": {
        "stages": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "stage": { "type": "string" },
              "percentage": { "type": "number" },
              "targeting": { "type": "object" },
              "duration": { "type": "string" },
              "successCriteria": { "type": "array", "items": { "type": "string" } },
              "rollbackTriggers": { "type": "array", "items": { "type": "string" } }
            }
          }
        },
        "metrics": { "type": "array", "items": { "type": "string" } },
        "alerts": { "type": "array", "items": { "type": "object" } }
      }
    },
    "killSwitch": {
      "type": "object",
      "properties": {
        "procedure": { "type": "array", "items": { "type": "string" } },
        "owner": { "type": "string" },
        "escalation": { "type": "array", "items": { "type": "string" } }
      }
    },
    "lifecycle": {
      "type": "object",
      "properties": {
        "createdDate": { "type": "string" },
        "plannedRemovalDate": { "type": "string" },
        "cleanupTasks": { "type": "array", "items": { "type": "string" } }
      }
    }
  }
}

Usage Example

const flagPlan = await executeSkill('feature-flags', {
  mode: 'rollout',
  feature: {
    name: 'New Dashboard Experience',
    description: 'Redesigned analytics dashboard with AI insights',
    type: 'release',
    owner: 'product-team',
    impactLevel: 'high'
  },
  rolloutStrategy: {
    type: 'gradual',
    stages: [
      { name: 'internal', percentage: 100, duration: '3 days' },
      { name: 'beta', percentage: 10, duration: '1 week' },
      { name: 'early-adopters', percentage: 25, duration: '1 week' },
      { name: 'general', percentage: 100, duration: 'permanent' }
    ]
  }
});

Dependencies

• Feature flag platforms (LaunchDarkly, Split, Flagsmith)
• Monitoring and alerting systems