diff --git a/README.md b/README.md
index 4a91643..568faf8 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,12 @@ MVP Roadmap (high level)
 - Phase 1 (2-4 weeks): add a small set of global constraints (mesh energy balance, water budgets), governance ledger, offline simulations with digital twins.
 - Phase 2 (4-6 weeks): adapter marketplace entry points, minimal codegen path, reference UI for graph composition of devices and constraints.
 - Phase 3 (6-8 weeks): hardware-in-the-loop validation with 2-3 devices, measure plan quality, convergence, latency; prepare for field pilots.
+- MVP Ownership & Delivery Details
+- Core protocol, graph registry, and EnergiBridge integration: you
+- Canonical IR bridge (EnergiBridge) and registry conformance: me
+- Starter adapters and marketplace scaffolding: you
+- Governance, audit, and per-message metadata: joint effort
+- Suggested pilots: two-domain cross-asset demo (DER + pumps + HVAC)
 
 Contribution & Governance
 - This project follows a collaborative, repository-driven development model. See AGENTS.md for architectural guidelines and contribution rules.
diff --git a/gridverse/adapter_marketplace/adapters/rover_planner_adapter.py b/gridverse/adapter_marketplace/adapters/rover_planner_adapter.py
new file mode 100644
index 0000000..3e49fac
--- /dev/null
+++ b/gridverse/adapter_marketplace/adapters/rover_planner_adapter.py
@@ -0,0 +1,25 @@
+class RoverPlannerAdapter:
+    """Minimal skeleton for a rover-planner adapter.
+
+    This adapter demonstrates a lightweight, well-scoped interface that
+    translates a domain payload into GridVerse's canonical form. This is a
+    bootstrap artifact intended for Phase 0 MVP wiring; it should be fleshed out
+    with domain-specific mappings for real pilots.
+    """
+
+    def __init__(self, config=None):
+        self.config = config or {}
+
+    def adapt(self, input_payload):
+        """Return a minimal canonical payload for GridVerse consumption.
+
+        Expected input_payload to contain keys like 'device_id' and 'state'. The
+        function returns a simple, stable shape that downstream components can
+        rely on for integration tests.
+        """
+        device_id = input_payload.get("device_id")
+        state = input_payload.get("state", {})
+        return {
+            "device": device_id,
+            "plan": state,
+        }
diff --git a/gridverse/dsl_sketch.md b/gridverse/dsl_sketch.md
index 3c937e5..9d19450 100644
--- a/gridverse/dsl_sketch.md
+++ b/gridverse/dsl_sketch.md
@@ -27,3 +27,23 @@ EnergiaBridge notes
 - Bridge: Canonical GridVerse -> vendor-agnostic form; map LocalProblem/SharedVariables/PlanDelta to interoperable contracts.
 - The registry keeps contract schemas and adapter descriptors with per-message metadata (version, timestamp, nonce).
 - A minimal example showing a translated LocalProblem into a CanonicalBundle via the EnergiaBridge.
+
+### Minimal Cross-Domain DSL Snippet (Expanded)
+- LocalProblem { id, domain, assets, objective, constraints }
+- SharedVariables { forecasts, priors, version }
+- PlanDelta { delta, timestamp, author, contract_id, signature }
+- DualVariables { multipliers }
+- PrivacyBudget { signal, budget, expiry }
+- AuditLog { entry, signer, timestamp, contract_id }
+- GovernanceBlock { policy, risk_limit }
+
+Example:
+```
+LocalProblem { id: "lp-01", domain: "district_heating", assets: ["boiler-1"], objective: "min_cost", constraints: ["mesh_energy"] }
+SharedVariables { forecasts: {demand: 1000}, priors: {temp: 21}, version: "0.2" }
+PlanDelta { delta: { add_adapter: ["rover_planner"] }, timestamp: 1700000000, author: "system", contract_id: "lp-01", signature: "abc123" }
+DualVariables { multipliers: { mu: 1.0 } }
+PrivacyBudget { signal: "energy", budget: 0.01, expiry: 3600 }
+AuditLog { entry: "bootstrap", signer: "system", timestamp: 1700000000, contract_id: "lp-01" }
+GovernanceBlock { policy: "safety", risk_limit: 0.05 }
+```