feat(pid): instrument index, line list and equipment list from the graph

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd

server.py

@@ -6357,7 +6357,7 @@ async def solid_boolean(
 
 
 # ---------------------------------------------------------------------------
-# ── SECTION 17: P&ID (4 tools) ──────────────────────────────────────────────
+# ── SECTION 17: P&ID (7 tools) ──────────────────────────────────────────────
 # ---------------------------------------------------------------------------
 
 
@@ -6580,6 +6580,95 @@ async def pid_graph(
     )
 
 
+@cad_tool(
+    summary=(
+        "Instrument index derived from the P&ID graph (tag, function, loop, "
+        "connections); optional CSV."
+    ),
+    cost="read",
+)
+@mcp.tool(
+    annotations={"title": "P&ID: Instrument Index", "readOnlyHint": True},
+    tags={"pid", "query"},
+)
+async def pid_instrument_index(
+    csv_path: Annotated[str | None, "Write the rows as CSV here (inside ALLOWED_PATHS)"] = None,
+    tolerance: Annotated[
+        float, Field(default=0.5, gt=0, description="Endpoint-to-port snap distance (mm)")
+    ] = 0.5,
+    scope: Annotated[str, "current_space | all"] = "current_space",
+    ctx: Context = None,
+) -> dict:
+    """Every instrument bubble with its ISA-5.1 reading and what it connects to.
+
+    Rows come from `pid_graph`, never from typed-in lists; the drawing is not
+    modified. `csv_path` is the only file this tool writes.
+    """
+    from engineering.pid.deliverables import deliverable
+
+    return await deliverable(
+        _backend(ctx), "instrument_index", csv_path, tolerance=tolerance, scope=scope
+    )
+
+
+@cad_tool(
+    summary=(
+        "Line list derived from the P&ID graph (number, class, size, spec, from/to); optional CSV."
+    ),
+    cost="read",
+)
+@mcp.tool(
+    annotations={"title": "P&ID: Line List", "readOnlyHint": True},
+    tags={"pid", "query"},
+)
+async def pid_line_list(
+    csv_path: Annotated[str | None, "Write the rows as CSV here (inside ALLOWED_PATHS)"] = None,
+    tolerance: Annotated[
+        float, Field(default=0.5, gt=0, description="Endpoint-to-port snap distance (mm)")
+    ] = 0.5,
+    scope: Annotated[str, "current_space | all"] = "current_space",
+    ctx: Context = None,
+) -> dict:
+    """Every P&ID line with its number, class, size/service/spec/insulation and endpoints.
+
+    Rows come from `pid_graph`; untagged lines sort last with `line_number: null`.
+    The drawing is not modified; `csv_path` is the only file this tool writes.
+    """
+    from engineering.pid.deliverables import deliverable
+
+    return await deliverable(_backend(ctx), "line_list", csv_path, tolerance=tolerance, scope=scope)
+
+
+@cad_tool(
+    summary=(
+        "Equipment list derived from the P&ID graph (tag, kind, ports, connections); optional CSV."
+    ),
+    cost="read",
+)
+@mcp.tool(
+    annotations={"title": "P&ID: Equipment List", "readOnlyHint": True},
+    tags={"pid", "query"},
+)
+async def pid_equipment_list(
+    csv_path: Annotated[str | None, "Write the rows as CSV here (inside ALLOWED_PATHS)"] = None,
+    tolerance: Annotated[
+        float, Field(default=0.5, gt=0, description="Endpoint-to-port snap distance (mm)")
+    ] = 0.5,
+    scope: Annotated[str, "current_space | all"] = "current_space",
+    ctx: Context = None,
+) -> dict:
+    """Every equipment, valve and connector node with its ports and how many lines reach them.
+
+    Rows come from `pid_graph`; the drawing is not modified and `csv_path` is
+    the only file this tool writes.
+    """
+    from engineering.pid.deliverables import deliverable
+
+    return await deliverable(
+        _backend(ctx), "equipment_list", csv_path, tolerance=tolerance, scope=scope
+    )
+
+
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