Development Estimation Skill Systematic estimation with confidence intervals and risk assessment. Quick Start

Time estimate with breakdown

/sc:estimate "auth system" --type time --unit days --breakdown

Complexity assessment

/sc:estimate "microservices migration" --type complexity

Effort analysis

/sc:estimate "performance optimization" --type effort --unit hours Behavioral Flow Analyze - Examine scope, complexity, and dependencies Calculate - Apply estimation methodology with benchmarks Validate - Cross-reference with domain expertise Present - Provide breakdown with confidence intervals Track - Document for accuracy improvement Flags Flag Type Default Description --type string time time, effort, complexity --unit string days hours, days, weeks --breakdown bool false Show detailed breakdown Personas Activated architect - Design complexity assessment performance - Optimization effort analysis project-manager - Timeline and resource planning MCP Integration PAL MCP - Multi-perspective estimate validation Evidence Requirements This skill does NOT require hard evidence. Deliverables are: Estimates with confidence intervals Risk factor identification Breakdown documentation Estimation Types Time ( --type time ) Calendar duration estimates Milestone planning Deadline assessment Effort ( --type effort ) Person-hours/days required Resource allocation guidance Team capacity planning Complexity ( --type complexity ) Technical complexity scoring Risk factor identification Dependency mapping Confidence Levels Estimates include confidence intervals: High (85-95%) - Well-understood scope Medium (70-84%) - Some unknowns Low (50-69%) - Significant uncertainty Examples Feature Estimation /sc:estimate "user authentication" --type time --unit days --breakdown

Breakdown: DB design (2d) + API (3d) + UI (2d) + Tests (1d)

Total: 8 days @ 85% confidence

Complexity Assessment /sc:estimate "monolith to microservices" --type complexity --breakdown

Architecture complexity with risk factors

Dependency mapping and migration phases

Effort Analysis /sc:estimate "API performance optimization" --type effort --unit hours

Profiling (4h) + Analysis (6h) + Implementation (16h) + Testing (8h)

Total: 34 hours @ 75% confidence

Tool Coordination Read/Grep/Glob - Codebase complexity analysis TodoWrite - Estimation breakdown tracking Task - Multi-domain estimation delegation Bash - Dependency and project analysis