diff --git a/.github/workflows/rust-check.yml b/.github/workflows/rust-check.yml
index d4c0eb03..7c8cac36 100644
--- a/.github/workflows/rust-check.yml
+++ b/.github/workflows/rust-check.yml
@@ -24,7 +24,7 @@ on:
 
 jobs:
   check:
-    name: ${{ matrix.os }} / 1.85
+    name: ${{ matrix.os }} / 1.94
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -36,7 +36,7 @@ jobs:
           submodules: recursive
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: '1.85'
+          toolchain: '1.94'
           components: rustfmt, clippy
       - uses: Swatinem/rust-cache@v2
       # Linux GL prerequisites for winit's x11+wayland feature link.
diff --git a/.github/workflows/rust-multiplatform.yml b/.github/workflows/rust-multiplatform.yml
index 4857d398..e7487925 100644
--- a/.github/workflows/rust-multiplatform.yml
+++ b/.github/workflows/rust-multiplatform.yml
@@ -72,7 +72,7 @@ jobs:
           submodules: recursive
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: '1.85'
+          toolchain: '1.94'
           targets: ${{ matrix.target }}
           components: rustfmt, clippy
       - uses: Swatinem/rust-cache@v2
@@ -114,9 +114,9 @@ jobs:
       - name: Test (host, macOS / Windows)
         if: matrix.cross == false && matrix.check_only != true && runner.os != 'Linux'
         run: cargo test --workspace --target ${{ matrix.target }}
-      # Desktop binary artifact upload removed with the `openpencil-app`
-      # placeholder crate (Phase 1 Task 1.2). Step 1f reintroduces a
-      # real desktop binary (new `op-*` crate) and its upload step here.
+      # Desktop binary artifact upload is intentionally not wired here yet.
+      # The real desktop binary lives in the `openpencil-desktop` crate; a
+      # build + upload step can be added once release packaging is finalized.
 
   wasm-web:
     name: wasm32-unknown-unknown / openpencil-shell-web (compile guard)
@@ -127,7 +127,7 @@ jobs:
           submodules: recursive
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: '1.85'
+          toolchain: '1.94'
           targets: wasm32-unknown-unknown
       - uses: Swatinem/rust-cache@v2
         with:
@@ -173,7 +173,7 @@ jobs:
           submodules: recursive
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: '1.85'
+          toolchain: '1.94'
           targets: ${{ matrix.target }}
       - uses: Swatinem/rust-cache@v2
         with:
diff --git a/.github/workflows/rust-release.yml b/.github/workflows/rust-release.yml
index c2f52e07..34340d40 100644
--- a/.github/workflows/rust-release.yml
+++ b/.github/workflows/rust-release.yml
@@ -57,7 +57,7 @@ jobs:
           submodules: recursive
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: '1.85'
+          toolchain: '1.94'
           targets: ${{ matrix.target }}
       - uses: Swatinem/rust-cache@v2
         with:
diff --git a/.github/workflows/wasm-bundle-check.yml b/.github/workflows/wasm-bundle-check.yml
index d4d76869..c6faae8a 100644
--- a/.github/workflows/wasm-bundle-check.yml
+++ b/.github/workflows/wasm-bundle-check.yml
@@ -21,7 +21,7 @@ jobs:
           submodules: recursive
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: '1.85'
+          toolchain: '1.94'
           targets: wasm32-unknown-unknown
       - uses: Swatinem/rust-cache@v2
         with:
diff --git a/README.md b/README.md
index e2497d8b..cc5cae51 100644
--- a/README.md
+++ b/README.md
@@ -447,8 +447,8 @@ bun run mcp:dev            # Run MCP server from source
 OpenPencil 正在进行全量 Rust 化。当前状态见 `openpencil-docs/superpowers/specs/2026-05-02-rust-ification-kickoff.md`（v7 FROZEN）。
 
 ```bash
-# Install Rust toolchain (rust-toolchain.toml auto-pins 1.85)
-rustup toolchain install 1.85
+# Install Rust toolchain (rust-toolchain.toml auto-pins 1.94)
+rustup toolchain install 1.94
 rustup target add wasm32-unknown-unknown
 
 # build / test / lint
@@ -461,9 +461,14 @@ bun run cargo:deny        # cargo-deny (native + wasm32 bans; CI uses cargo-deny
 
 **Crate list (`crates/`):**
 
-| Crate                              | Category                       | wasm32                                        |
-| ---------------------------------- | ------------------------------ | --------------------------------------------- |
-| openpencil-shell-{core,web,native} | UI shell（spec §1.2 三 crate） | core/web ✅ / native ❌ (compile_error guard) |
+| Crate                   | Category                                         | wasm32                   |
+| ----------------------- | ------------------------------------------------ | ------------------------ |
+| openpencil-shell-core   | Platform-free widgets + Document model           | ✅                       |
+| openpencil-shell-web    | Browser runner (wasm32 + skia-safe-op fork)      | ✅                       |
+| openpencil-shell-native | Native lib (WidgetHostNative + NativeBackend)    | ❌ (compile_error guard) |
+| openpencil-desktop      | Desktop binary (winit + skia-safe GL surface)    | ❌ (native only)         |
+| anthropic-agent-sdk     | Vendored Claude Code CLI SDK (streaming, MCP)    | ❌ (native only)         |
+| wasm-libc-shim          | libc / libm / libcxx shim for wasm32 skia bundle | ✅                       |
 
 **Submodule:** `vendor/agent` → `github.com/ZSeven-W/agent-rs` (cross-product Rust agent runtime).