docs: describe grilling as round-by-round everywhere

The round-by-round rework left the wrappers and callers still promising
a one-question-at-a-time interview. Sync grill-me, grill-with-docs and
triage (docs + skill step), plus grilling's Codex short_description and
the loop-me draft.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

docs/engineering/grill-with-docs.md

@@ -12,7 +12,7 @@ npx skills update grill-with-docs
 
 ## What it does
 
-`grill-with-docs` interviews you relentlessly about a plan or design, one question at a time, until you and the agent reach a shared understanding — and it writes the vocabulary and decisions down as you go.
+`grill-with-docs` interviews you relentlessly about a plan or design, a round of questions at a time, until you and the agent reach a shared understanding — and it writes the vocabulary and decisions down as you go.
 
 The grilling **leaves a paper trail**. A plain interview sharpens your thinking and then evaporates when the session ends; this one captures each term the moment it's resolved into a `CONTEXT.md` glossary, and records the hard, one-way decisions as ADRs. The alignment survives the conversation instead of living only in your head.
 
@@ -28,13 +28,13 @@ This skill is stateful — it writes into your repo as it grills. Resolved terms
 
 ## The grill
 
-The engine is a **grill**: a relentless, one-question-at-a-time walk down the decision tree, resolving dependencies between decisions before moving on, with a recommended answer offered for every question. Questions the codebase can answer are answered by reading the codebase, not by asking you.
+The engine is a **grill**: a relentless, round-by-round walk down the decision tree. Each round asks the whole **frontier** — every decision whose prerequisites are already settled — and waits, so dependencies between decisions are resolved before the questions that hang off them are asked, with a recommended answer offered for every question. Questions the codebase can answer are answered by reading the codebase, not by asking you.
 
 What makes this variant its own skill is where the answers go. As the grill runs, fuzzy language gets sharpened into canonical terms and written to the glossary inline — not batched at the end. The glossary stays a glossary: pure vocabulary, no implementation details, no spec. ADRs are offered sparingly, only when a decision is hard to reverse, surprising without context, and the result of a real trade-off. Most sessions produce a sharper glossary and few or no ADRs, and that's the intended shape.
 
 ## It's working if
 
-- It asks one question at a time and waits, rather than dumping a questionnaire.
+- It asks a round of independent questions and waits, rather than dumping the whole questionnaire at you.
 - Terms get written to `CONTEXT.md` the moment they resolve, in your project's own words.
 - It reaches into the codebase to answer its own questions where it can.
 - ADRs stay rare — you're not asked to rubber-stamp reversible choices.