diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index ef18187..dffb6a4 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -1,6 +1,6 @@
 {
   "name": "design-to-code-bridge-marketplace",
-  "description": "Single-plugin marketplace for the Design-to-Code Bridge — translates design exports (HTML + screenshot) into design-system-aligned code through ten explicit gates.",
+  "description": "Single-plugin marketplace for the Design-to-Code Bridge — translates design exports (HTML + screenshot) into design-system-aligned code through eleven explicit gates.",
   "owner": {
     "name": "Open Session",
     "email": "hello@opensession.co",
diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
index dbb6093..8690e5d 100644
--- a/.claude-plugin/plugin.json
+++ b/.claude-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "design-to-code-bridge",
-  "version": "0.1.0",
-  "description": "Translate design exports (HTML + screenshot) into design-system-aligned code through ten explicit gates",
+  "version": "0.2.0",
+  "description": "Translate design exports (HTML + screenshot) into design-system-aligned code through eleven explicit gates",
   "author": {
     "name": "Open Session",
     "email": "hello@opensession.co"
diff --git a/.github/workflows/version-check.yml b/.github/workflows/version-check.yml
new file mode 100644
index 0000000..37b1324
--- /dev/null
+++ b/.github/workflows/version-check.yml
@@ -0,0 +1,51 @@
+name: Version bump check
+
+on:
+  pull_request:
+    branches: [main]
+    paths:
+      - '.claude-plugin/plugin.json'
+      - 'agents/**'
+      - 'commands/**'
+      - 'skills/**'
+      - 'templates/**'
+      - 'scripts/**'
+      - 'DESIGN_TO_CODE_RULES.md'
+
+permissions:
+  contents: read
+  pull-requests: read
+
+jobs:
+  version-bump:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out PR head
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Read PR version
+        id: pr
+        run: |
+          version=$(jq -r '.version' .claude-plugin/plugin.json)
+          echo "version=$version" >> "$GITHUB_OUTPUT"
+
+      - name: Read main version
+        id: main
+        run: |
+          version=$(git show origin/main:.claude-plugin/plugin.json | jq -r '.version')
+          echo "version=$version" >> "$GITHUB_OUTPUT"
+
+      - name: Compare
+        run: |
+          pr_version="${{ steps.pr.outputs.version }}"
+          main_version="${{ steps.main.outputs.version }}"
+          echo "PR version:    $pr_version"
+          echo "main version:  $main_version"
+          if [ "$pr_version" = "$main_version" ]; then
+            echo ""
+            echo "::error::plugin.json version ($pr_version) matches main. Bump it (semver: patch for fixes/docs, minor for features, major for breaking) and update CHANGELOG.md."
+            exit 1
+          fi
+          echo "Version bumped — ok."
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 131c358..99f2bc0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,29 @@
 
 All notable changes to the Design-to-Code Bridge plugin are documented here. Follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/) and [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.2.0] — 2026-05-19
+
+### Added
+
+- **Gate 6 — Data binding.** New gate sits between Component mapping (Gate 5) and Slice plan. Classifies every mapped unit as `backend` (wire to an existing service), `mock` (emit a schema + JSON + TS-interface triple under hierarchical `data/<page>/<subpage>/`), or `none` (decorative). Low-confidence rows must be acknowledged before advancing.
+- **`design-to-code-data-binder` subagent** — 7th subagent, owns Gate 6. Walks the consumer's `lib/services/`, `hooks/`, and route tree to propose the binding tier per unit and queue mock-file triples for the planner.
+- **`templates/gate-failures/6-data-binding.md`** — per-gate failure message template for low-confidence bindings, page/subpage conflicts, and backend overrides.
+
+### Changed
+
+- **Gate renumbering** (breaking change for any consumer reading gate numbers from `status.json`):
+  - Slice plan: Gate 6 → Gate 7
+  - Pre-slice: Gate 7 → Gate 8
+  - Pre-swap: Gate 8 → Gate 9
+  - Pre-retro: Gate 9 → Gate 10
+- **`templates/gate-failures/9-pre-retro.md` → `10-pre-retro.md`** (renamed).
+- **`agents/design-to-code-pm.md`** — updated to reference "eleven gates"; Gate 6 section added between Gate 5 and Gate 7.
+- **`DESIGN_TO_CODE_RULES.md`** — expanded to document the data-binding gate and the hierarchical `data/<page>/<subpage>/` convention (~24% growth).
+
+### Notes
+
+- This is a breaking change for any consumer who has frozen `status.json` snapshots from v0.1.0 — gate numbers ≥ 6 have shifted by 1. Run `/design-to-code:start` on existing features to re-validate against the new gate ordering.
+
 ## [0.1.0] — 2026-05-12
 
 ### Added