Layered context memory revision 0

src/markitect_tool/extension/builtins.py

@@ -19,6 +19,7 @@ def builtin_extension_registry() -> ExtensionRegistry:
         _runtime_assessment_descriptor(),
         _local_label_policy_descriptor(),
         _document_function_descriptor(),
+        _agent_memory_descriptor(),
     ]:
         registry.register(descriptor)
     return registry
@@ -265,3 +266,51 @@ def _document_function_descriptor() -> ExtensionDescriptor:
             "external_policy_services_required": False,
         },
     )
+
+
+def _agent_memory_descriptor() -> ExtensionDescriptor:
+    return ExtensionDescriptor(
+        id="memory.context-package",
+        kind="memory-registry",
+        summary="Local agent working-memory context package registry and activation lifecycle.",
+        capabilities=[
+            ProcessingCapability(id="context_packages", kind="create"),
+            ProcessingCapability(id="context_activation", kind="execute"),
+            ProcessingCapability(id="snapshots", kind="read"),
+            ProcessingCapability(id="fts", kind="read"),
+            ProcessingCapability(id="policy_filter", kind="filter"),
+            ProcessingCapability(id="provenance", kind="emit"),
+            ProcessingCapability(id="diagnostics", kind="emit"),
+        ],
+        safety={
+            "reads_files": True,
+            "writes_local_context_registry": True,
+            "network": False,
+            "assisted_generation": False,
+            "external_policy_engine": False,
+        },
+        input_contract="Selector/search/manifest + local snapshots/documents",
+        output_contract="ContextPackage | ContextActivation",
+        diagnostics_namespace="memory",
+        provenance_prefix="memory.context_package",
+        cli={
+            "commands": [
+                "mkt context pack",
+                "mkt context activate",
+                "mkt context deactivate",
+                "mkt context explain",
+                "mkt context refresh",
+                "mkt context list",
+            ]
+        },
+        docs=[
+            "docs/agent-working-memory.md",
+            "docs/agent-working-memory-thought-experiment.md",
+        ],
+        examples=["examples/memory/workplan-context.manifest.yaml"],
+        metadata={
+            "external_policy_services_required": False,
+            "assisted_summaries": "future adapter-only",
+            "default_registry": ".markitect/context",
+        },
+    )