estimate-calibrator

Installation
SKILL.md

Estimate Calibrator

Replaces single-point guesses with structured three-point estimates: decomposes work into atomic units, estimates best/likely/worst case for each, identifies unknowns and assumptions, calculates aggregate ranges using PERT, and assigns confidence levels with explicit rationale.

Reference Files

File Contents Load When
references/estimation-methods.md PERT formula, three-point estimation, Monte Carlo basics Always
references/unknown-categories.md Technical, scope, external, and organizational uncertainty types Unknown identification
references/calibration-tips.md Cognitive biases in estimation, historical calibration, buffer strategies Always
references/sizing-heuristics.md Common task size patterns, complexity indicators, reference class data Quick sizing needed

Prerequisites

  • Work item description (feature, task, project)
Related skills

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Installs
46
GitHub Stars
230
First Seen
Mar 23, 2026