define

Encode the conversation's shared understanding as a Manifest at `~/.manifest-dev/manifests/manifest-{ts}.md` (create the dir; `~` = `$HOME` / `%USERPROFILE%`) — a durable home so manifests survive OS temp cleanup across multi-day work. Fall back to a writable temp path (`/tmp/`, else `$TMPDIR` / `%TEMP%`) only when the home directory isn't writable. If the transcript lacks shared understanding, invoke `figure-out` first; propagate `--autonomous` when invoked from `/auto` or `/do`'s amendment path. **Pre-flight:** if `--babysit <pr-url>`, load `references/BABYSIT_MODE.md` and follow its synthesis flow; if `$ARGUMENTS` contains a manifest file path, amend (see below); else fresh. **Encoding discipline.** figure-out reaches shared understanding of the *problem*; /define handles manifest-specific *encoding* judgment calls — invariant vs process guidance, AC scope and pass threshold, phase ordering (fast vs slow), trade-offs to record as `[T-N]`. Surface the load-bearing encoding decisions briefly with a recommended answer before encoding; auto-decide the rest and mark `(auto)` + matching ASM. The manifest is the acceptance contract — what the user accepts as *"I'd ship the outcome of executing this."* Consume `Known Assumption candidate` items from the latest figure-out Read: encode each still-unresolved candidate as an `ASM-*` entry with its default and impact if wrong; omit candidates that later evidence or the user resolved. Do not copy the full Evidence Ledger into the Mani...