feat(mcp): add title and tags annotations to all MCP tool decorators (issue #826 phase 1)

Adds human-readable `title` and categorization `tags` to all ~24 @mcp.tool
decorators across the MCP tools package. FastMCP 3.3.1 (pinned in pyproject.toml)
supports both fields natively. Tags used: notes, search, projects, cloud, schema,
navigation, canvas, ui.

Extends test_tool_contracts.py with an async test that asserts every registered
tool has a non-empty title and at least one tag to prevent future regressions.

output_schema is explicitly deferred as a follow-up (phase 2): it requires
per-tool design decisions about which tools reliably return structured JSON and
how to handle tools that return str|dict depending on output_format.

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Drew Cain <groksrc@gmail.com>

Author: groksrc

src/basic_memory/mcp/tools/build_context.py

@@ -112,6 +112,7 @@ def _format_context_markdown(graph: GraphContext, project: str) -> str:
 
 
 @mcp.tool(
+    title="Build Context",
     description="""Build context from a memory:// URI to continue conversations naturally.
 
     Use this to follow up on previous discussions or explore related topics.
@@ -131,6 +132,7 @@ def _format_context_markdown(graph: GraphContext, project: str) -> str:
     - "json" (default): Structured JSON with internal fields excluded
     - "text": Compact markdown text for LLM consumption
     """,
+    tags={"navigation", "notes"},
     annotations={"readOnlyHint": True, "openWorldHint": False},
 )
 async def build_context(

src/basic_memory/mcp/tools/canvas.py

@@ -17,7 +17,9 @@
 
 
 @mcp.tool(
+    title="Create Canvas",
     description="Create an Obsidian canvas file to visualize concepts and connections.",
+    tags={"canvas", "notes"},
     annotations={"destructiveHint": False, "idempotentHint": True, "openWorldHint": False},
 )
 async def canvas(

src/basic_memory/mcp/tools/chatgpt_tools.py

@@ -105,7 +105,9 @@ def _format_document_for_chatgpt(
 
 
 @mcp.tool(
+    title="Search Knowledge Base",
     description="Search for content across the knowledge base",
+    tags={"search"},
     annotations={"readOnlyHint": True, "openWorldHint": False},
 )
 async def search(
@@ -167,7 +169,9 @@ async def search(
 
 
 @mcp.tool(
+    title="Fetch Document",
     description="Fetch the full contents of a search result document",
+    tags={"search", "notes"},
     annotations={"readOnlyHint": True, "openWorldHint": False},
 )
 async def fetch(

src/basic_memory/mcp/tools/cloud_info.py

@@ -7,6 +7,8 @@
 
 @mcp.tool(
     "cloud_info",
+    title="Cloud Info",
+    tags={"cloud"},
     annotations={"readOnlyHint": True, "openWorldHint": False},
 )
 def cloud_info() -> str:

src/basic_memory/mcp/tools/delete_note.py

@@ -182,7 +182,9 @@ def _directory_path_for_delete(
 
 
 @mcp.tool(
+    title="Delete Note",
     description="Delete a note or directory by title, permalink, or path",
+    tags={"notes"},
     annotations={"destructiveHint": True, "openWorldHint": False},
 )
 async def delete_note(

src/basic_memory/mcp/tools/edit_note.py

@@ -304,7 +304,9 @@ def _format_error_response(
 
 
 @mcp.tool(
+    title="Edit Note",
     description="Edit an existing markdown note using various operations like append, prepend, find_replace, replace_section, insert_before_section, or insert_after_section.",
+    tags={"notes"},
     annotations={"destructiveHint": False, "openWorldHint": False},
 )
 async def edit_note(

src/basic_memory/mcp/tools/list_directory.py

@@ -11,7 +11,9 @@
 
 
 @mcp.tool(
+    title="List Directory",
     description="List directory contents with filtering and depth control.",
+    tags={"navigation", "notes"},
     annotations={"readOnlyHint": True, "openWorldHint": False},
 )
 async def list_directory(

src/basic_memory/mcp/tools/move_note.py

@@ -357,7 +357,9 @@ def _format_move_error_response(error_message: str, identifier: str, destination
 
 
 @mcp.tool(
+    title="Move Note",
     description="Move a note or directory to a new location, updating database and maintaining links.",
+    tags={"notes"},
     annotations={"destructiveHint": False, "openWorldHint": False},
 )
 async def move_note(

src/basic_memory/mcp/tools/project_management.py

@@ -357,6 +357,8 @@ def _format_project_list_json(
 
 @mcp.tool(
     "list_memory_projects",
+    title="List Memory Projects",
+    tags={"projects"},
     annotations={"readOnlyHint": True, "openWorldHint": False},
 )
 async def list_memory_projects(
@@ -495,6 +497,8 @@ async def _resolve_workspace_routing(
 
 @mcp.tool(
     "create_memory_project",
+    title="Create Memory Project",
+    tags={"projects"},
     annotations={"destructiveHint": False, "openWorldHint": False},
 )
 async def create_memory_project(
@@ -636,6 +640,8 @@ async def create_memory_project(
 
 
 @mcp.tool(
+    title="Delete Project",
+    tags={"projects"},
     annotations={"destructiveHint": True, "openWorldHint": False},
 )
 async def delete_project(

src/basic_memory/mcp/tools/read_content.py

@@ -155,7 +155,9 @@ def optimize_image(img, content_length, max_output_bytes=350000):
 
 
 @mcp.tool(
+    title="Read Content",
     description="Read a file's raw content by path or permalink",
+    tags={"notes"},
     annotations={"readOnlyHint": True, "openWorldHint": False},
 )
 async def read_content(