Skill bundle · 2-in-1

Scientific Method
Bundle

Stop Claude from guessing. One skill runs a hypothesis-driven investigation and produces an evidence-backed report; the second adversarially reviews that report before you act on it.

Why two skills together

When the words "maybe", "probably", "likely" appear, the agent is guessing. /scientific-method switches it into investigation mode — but an investigator grading its own homework inherits its own blind spots. That's what the reviewer is for:

Investigate →/scientific-method forms hypotheses, derives testable consequences, runs experiments, and reports a PROVED / DISPROVED / INCONCLUSIVE verdict with the evidence attached.
Review →/investigation-review — run in a fresh context (new session or subagent) — re-runs the evidence, challenges the strongest claim, and gates the verdict with PASS or numbered challenges.

Only a PASS-ed verdict graduates from hypothesis to fact. Each skill is also useful on its own.

One-command install

Drops two SKILL.md files into ~/.claude/skills/. Restart Claude Code to pick them up.

for s in scientific-method investigation-review; do
  mkdir -p ~/.claude/skills/$s
  curl -fsSL "https://guide.zenaitutoring.com/scientific-method/$s.md" \
    -o ~/.claude/skills/$s/SKILL.md
done

After install: invoke with /scientific-method or /investigation-review — or just say "use the scientific method" when Claude starts guessing.

The two skills

Curl each one individually, or use the bundle install above.

/scientific-method investigator · hypothesis → experiment → verdict

Triggers on hedge words ("maybe", "probably", "likely"). Verifies the premise first, surfaces hidden assumptions, then loops hypothesis → experiment until it reaches a PROVED / DISPROVED / INCONCLUSIVE verdict — every claim backed by a command and its actual output.

/investigation-review adversarial reviewer · PASS / REVISE gate

Assumes the investigator cut corners until proven otherwise. Re-runs at least two pieces of evidence, checks what was NOT checked, challenges the strongest claim independently, then gates with PASS or numbered REVISE challenges. Best run in a fresh context.

Manual install (per skill)

If you only want one of the two, drop the file into its own folder under ~/.claude/skills/:

mkdir -p ~/.claude/skills/scientific-method
curl -fsSL https://guide.zenaitutoring.com/scientific-method/scientific-method.md \
  -o ~/.claude/skills/scientific-method/SKILL.md