0.1.0

First public release.

who: binary-searches any command's output across a commit range and names the exact commit that flipped the behavior. --fast runs the search only. --parallel probes worktrees concurrently.

explanations: minimized causal diff via delta debugging over hunks; interaction-fault detection that names both commits when two are required; dependency blame reading vendored manifests and Cargo.lock transitions, with upstream attribution on request; ranked candidates when history is not monotone; rewrite resilience through squashes via patch-id matching.

guarding: behavior guardians with watch mode, drift auto-blame, and markdown reports; deterministic pinned replay, byte-compared twice; code and environment signatures classifying every observation.

plumbing: JSONL time series in .crux/history.jsonl, causal chain reports, doctor, diff, predict, index export, shell completions.

Single 2.04 MiB stripped binary. Only dependency: git on PATH.