diff --git a/apps/readest-app/.claude/memory/MEMORY.md b/apps/readest-app/.claude/memory/MEMORY.md
index 05810ed6..47fefe39 100644
--- a/apps/readest-app/.claude/memory/MEMORY.md
+++ b/apps/readest-app/.claude/memory/MEMORY.md
@@ -35,4 +35,4 @@
 - [New branch per PR](feedback_pr_new_branch.md) — always create a fresh branch from main for each new PR/issue
 - [Upgrade gstack locally](feedback_gstack_upgrade.md) — always upgrade from the project's .claude/skills/gstack, not global
 - [No lookbehind regex](feedback_no_lookbehind_regex.md) — never use `(?<=)` or `(?<!)` in JS/TS; build check rejects them
-- [Use worktree](feedback_use_worktree.md) — always `pnpm worktree:new` before PR review, issue fix, or feature work
+- [Use worktree](feedback_use_worktree.md) — never `git worktree add` directly; always `pnpm worktree:new` before PR review, issue fix, or feature work
diff --git a/apps/readest-app/.claude/skills/gstack b/apps/readest-app/.claude/skills/gstack
index dbd7aee5..c6e6a21d 160000
--- a/apps/readest-app/.claude/skills/gstack
+++ b/apps/readest-app/.claude/skills/gstack
@@ -1 +1 @@
-Subproject commit dbd7aee5b6b5bb41b17ae7747568e2fda8a91d77
+Subproject commit c6e6a21d1a9a58e771403260ff6a134898f2dd02
diff --git a/apps/readest-app/AGENTS.md b/apps/readest-app/AGENTS.md
index 07218c2d..39c41514 100644
--- a/apps/readest-app/AGENTS.md
+++ b/apps/readest-app/AGENTS.md
@@ -56,6 +56,15 @@ pnpm clippy:check          # Lint Rust code (src-tauri)
 
 Platform-specific code lives in `src-tauri/src/{macos,windows,android,ios}/`. Custom Tauri plugins are in `src-tauri/plugins/`.
 
+## Git Worktrees
+
+Always use `pnpm worktree:new <branch-name|pr-number>` to create worktrees. Never use `git worktree add` directly — the script handles submodule initialization (simplecc WASM, foliate-js), dependency installation, `.env` copying, vendor assets, and Tauri gen symlinks that are required for lint and tests to pass.
+
+```bash
+pnpm worktree:new feat/my-feature   # New branch from origin/main
+pnpm worktree:new 3837              # Checkout PR #3837 with push access to fork
+```
+
 ## Project Rules
 
 Rules are in `.claude/rules/`: test-first, typescript, verification.
@@ -68,10 +77,6 @@ See [docs/i18n.md](docs/i18n.md) for the key-as-content translation approach, `s
 
 See [docs/safe-area-insets.md](docs/safe-area-insets.md) for rules on handling top/bottom insets for UI elements near screen edges.
 
-## Web Browsing & QA (gstack)
-
-For all web browsing, QA testing, and site interaction, use the `/browse` skill from gstack. **Never use `mcp__claude-in-chrome__*` tools directly.**
-
 Available gstack skills:
 
 - `/plan-ceo-review` — CEO/founder-mode plan review