fix: update stale references and restore silence safety net (PRI-974)

Post-inversion cleanup:

- executing-plans, subagent-driven-development: update Integration
  description from "Ensures isolated workspace" to "Detects workspace
  environment and offers worktree isolation on request"
- codex-tools.md: update step references (Step 0→1, Step 1→2)
- using-git-worktrees Step 2: restore "silence → ask once more" instead
  of "silence → work in place" to preserve safety net for confused users

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/superpowers/plans/2026-04-06-worktree-rototill.md

@@ -251,7 +251,7 @@ Report with branch state:
 
 **If `GIT_DIR == GIT_COMMON` (or in a submodule):** You are in a normal repo checkout.
 
-Has the user already indicated their worktree preference in your instructions? If not, ask for consent before creating a worktree:
+If the user has not already made their preferences about worktree isolation clear — check global and project agent instruction files (`CLAUDE.md`, `AGENTS.md`, `GEMINI.md`, `.cursorrules`, or equivalent) — ask for consent before creating a worktree:
 
 > "Would you like me to set up an isolated worktree? It protects your current branch from changes."
 
@@ -289,7 +289,7 @@ Follow this priority order:
    ```
    If found, use it (backward compatibility with legacy global path).
 
-3. **Check your instructions for a worktree directory preference.** If specified, use it without asking.
+3. **Check your project's agent instruction file** (CLAUDE.md, GEMINI.md, AGENTS.md, .cursorrules, or equivalent) for a worktree directory preference. If specified, use it without asking.
 
 4. **Default to `.worktrees/`.**
 

skills/using-git-worktrees/SKILL.md

@@ -48,9 +48,7 @@ echo "Current branch: $BRANCH"
 echo "Repository: $(basename "$(git rev-parse --show-toplevel)")"
 ```
 
-**Check the user's most recent message first.** If they already asked for a worktree, named the worktree skill, or asked for an isolated workspace in the message that invoked you, that IS the explicit ask — proceed directly to Step 3 without re-prompting.
-
-Otherwise, tell the user their options and **wait for a reply**:
+Tell the user their options, then **wait for a reply**:
 
 > "You're on `<branch>` in `<repo>`. I can set up an isolated worktree, or we can work directly here. What do you prefer?"
 
@@ -84,7 +82,7 @@ Only proceed to Step 3b if you have no native worktree tool available.
 
 Follow this priority order. Explicit user preference always beats observed filesystem state.
 
-1. **Check your instructions for a declared worktree directory preference.** If the user has already specified one, use it without asking.
+1. **Check global and project agent instruction files** (`~/.claude/CLAUDE.md`, `~/.config/gemini/AGENTS.md`, project-level `CLAUDE.md`, `AGENTS.md`, `GEMINI.md`, `.cursorrules`, or equivalent) for a declared worktree directory preference. If specified, use it without asking.
 
 2. **Check for an existing project-local worktree directory:**
    ```bash
@@ -243,7 +241,7 @@ Ready to implement <feature-name>
 - Create worktree without verifying it's ignored (project-local)
 - Skip baseline test verification
 - Proceed with failing tests without asking
-- Infer worktree consent from the task description or plan — only an explicit user request counts
+- Infer worktree consent from the task description, plan, or skill invocation — only an explicit user reply counts
 
 **Always:**
 - Run Step 1 detection first
@@ -258,9 +256,9 @@ Ready to implement <feature-name>
 ## Integration
 
 **Called by:**
-- **subagent-driven-development** - Calls this to detect the workspace and optionally set up worktree isolation on request
-- **executing-plans** - Calls this to detect the workspace and optionally set up worktree isolation on request
-- Any skill that may use worktree isolation
+- **subagent-driven-development** - Ensures isolated workspace (creates one or verifies existing)
+- **executing-plans** - Ensures isolated workspace (creates one or verifies existing)
+- Any skill needing isolated workspace
 
 **Pairs with:**
 - **finishing-a-development-branch** - REQUIRED for cleanup after work complete