assumption-challenger

Installation
SKILL.md

Assumption Challenger

Systematically identifies and stress-tests assumptions that are treated as facts but may not be validated.

When to Use

  • Validating roadmaps and project plans
  • Reviewing architecture proposals
  • Assessing build vs buy decisions
  • Evaluating timelines and budgets
  • Challenging strategic initiatives

Why Assumptions Matter

Most project failures trace back to invalid assumptions:

  • Timeline assumptions: "We can ship in 6 weeks" (based on nothing)
  • Resource assumptions: "We'll hire 3 engineers" (in a tight market)
  • Technical assumptions: "The API can handle 10K requests/sec" (never tested)
  • Business assumptions: "Users will adopt this feature" (never validated)
Related skills
Installs
14
GitHub Stars
88
First Seen
Jan 28, 2026