chrisdavidson
UserClaude Code plugin for systematic first-principles thinking — a 5-phase methodology (identify essence, challenge assumptions, establish ground truths, reason upward, validate) plus 13 companion skills. Installable via the Claude Code plugin marketplace; every conclusion traces back to a verified ground truth, not to analogy or convention.
Categories
Indexed Skills (14)
first-principles-analysis
Runs the full five-phase first-principles analysis. Slash-only.
challenge-assumptions
Slash-only Phase 2 stub — classify and test every assumption before reasoning.
estimate
Runs a focused estimate only — magnitude rebuild from units. Invoke via /estimate only.
fishbone
Runs a focused fishbone only — breadth-first cause-category map. Invoke via /fishbone only.
five-whys
Runs a focused 5-Whys only — root-cause drill on a symptom or a reduce-to-primitives irreducibility drill on a claim. Invoke via /five-whys only.
ground-truths
Slash-only Phase 3 stub — compile GT-ID-anchored verified facts for derivation chains.
identify-essence
Slash-only Phase 1 stub — expose core question by stripping framing artifacts.
inversion
Runs a focused inversion only — enumerates failure preconditions. Invoke via /inversion only.
pre-mortem
Runs a focused pre-mortem only — prospective-hindsight failure analysis. Invoke via /pre-mortem only.
reason-upward
Slash-only Phase 4 stub — build derivation chains upward from named ground truths.
second-order
Runs a focused second-order only — 2nd/3rd-order effects. Invoke via /second-order only.
theoretical-limit
Strips conventions to the law-permitted ceiling. Invoke via /theoretical-limit only.
trade-off
Runs a focused trade-off only — weighted-criteria scoring. Invoke via /trade-off only.
validate
Slash-only Phase 5 stub — stress-test each derivation chain for weak links.
Bio shown is the top-scored skill's repo description as a fallback — real GitHub bios land in a future update.