| name | doncheli-estimate |
| description | Estimate effort, duration and cost using 4 complementary models (Function Points, Planning Poker AI, COCOMO, Historical). Activate when user mentions "estimate", "estimation", "effort", "how long", "cost", "story points", "sizing". |
Don Cheli: Estimation Engine
Instructions
- Read the feature, story or task description
- Run all 4 estimation models independently (treat each as a separate agent):
- Function Points: count inputs, outputs, queries, files, interfaces; apply complexity weights
- Planning Poker AI: 3 independent agents guess simultaneously (pessimist, realist, optimist), then reconcile using Delphi method
- COCOMO II: classify project size (Organic / Semi-detached / Embedded), apply effort equation
- Historical: look for comparable past tasks in
.dc/hallazgos.md and docs/; extrapolate velocity
- Compute the consolidated estimate with 90% confidence interval
- Flag hidden risks that inflate variance
Output Format
## Estimation: <feature name>
| Model | Estimate | Unit | Confidence |
|------------------|------------|------------|------------|
| Function Points | X | hours | medium |
| Planning Poker | X–Y | story pts | high |
| COCOMO II | X | person-days| medium |
| Historical | X | days | low/med |
**Consolidated:** X–Y days (90% CI)
**Key assumptions:** …
**Top 3 risks that increase variance:** …
Quality Gate
- All 4 models must be executed; do not skip any
- If Historical has no comparable baseline, mark as N/A and explain
- If Planning Poker spread > 2x, escalate: ask the user to clarify scope before finalizing
Do not use this skill when
- The task is trivially small (< 1 hour) — just state it directly
- The user is asking for a rough gut-feel order of magnitude; use a one-liner instead
