# AutoCAD MCP Pro — Environment Variables

# Rendering (view_screenshot / drawing_export_pdf) is an install-time choice,
# not an env var — the core install cannot render at all. ezdxf's drawing
# add-on imports Pillow unconditionally, so every render path needs it:
#   pip install "autocad-mcp-pro[pdf]"   ezdxf backend, matplotlib renderer
#                                        (also pulls Pillow in transitively)
#   pip install "autocad-mcp-pro[com]"   live AutoCAD Win32 window capture
#   pip install "autocad-mcp-pro[full]"  both
# With only [com] the ezdxf backend still cannot render (no matplotlib).

# Backend selection: auto | com | ezdxf
AUTOCAD_MCP_BACKEND=auto

# COM ProgID the live backend attaches to. Escape hatch for AutoCAD-compatible
# applications that expose the same ActiveX object model.
#
# CAD_PROGID only changes which COM application the backend attaches to — every
# tool beyond the connection itself is developed and tested against AutoCAD
# alone, and AutoCAD-clone compatibility is unverified, so treat a non-default
# ProgID as experimental. An unrecognised ProgID fails loudly rather than
# falling back to AutoCAD, because the fallback would launch the very
# application you said you were not using.
#
# Candidates below are UNVERIFIED — none was tested against a running seat.
# List what is actually registered on your machine with:
#   Get-ChildItem Registry::HKEY_CLASSES_ROOT |
#     Where-Object { $_.PSChildName -like '*.Application*' } |
#     Select-Object -Expand PSChildName
# CAD_PROGID=BricscadApp.AcadApplication   # UNVERIFIED
# CAD_PROGID=ZWCAD.Application             # UNVERIFIED
# CAD_PROGID=GstarCAD.Application          # UNVERIFIED
CAD_PROGID=AutoCAD.Application

# Comma-separated list of allowed directories for file operations.
# Leave empty to allow all paths (not recommended for production).
# Example: ALLOWED_PATHS=C:\Drawings,D:\Projects\CAD
ALLOWED_PATHS=

# Maximum undo stack size (number of snapshots to keep). The code's default is
# 5; this file used to say 50, which was a documentation-only disagreement.
MAX_UNDO_STACK=5

# Logging level: DEBUG | INFO | WARNING | ERROR
LOG_LEVEL=INFO

# Enable dangerous AutoCAD commands (ERASE ALL, QUIT, etc.)
# Set to true only if you trust all MCP clients
DANGEROUS_COMMANDS_ENABLED=false

# Exposed tool profile: full (default) | lean
# lean is a curated ~47-tool drafting/inspection set for clients with tight
# tool caps. The "core" profile was removed in v1.5.0 — the discovery layer
# below solves the crowded-surface problem it existed for. TOOL_PROFILE=core
# still boots, falling back to full with a warning.
TOOL_PROFILE=full

# Tool packs: all (default) | comma list of core,pid — advertise only the
# vertical packs this client uses. core is always on.
TOOL_PACKS=all

# Tool discovery: off (default) | search
# "search" replaces the advertised catalog with search_tools + call_tool, so a
# client sees two tools instead of ~126 and searches by AutoCAD command name
# ("QSELECT") or plain English ("round off this corner").
DISCOVERY_MODE=off

# Per-call backend timeouts in seconds; 0 disables the check.
# A hung call would otherwise hold the backend lock forever.
COM_CALL_TIMEOUT=60
EZDXF_CALL_TIMEOUT=120

# Undo/redo history for the headless backend, in steps. 0 disables it.
# Not free: ezdxf has no journal, so each step is a full DXF snapshot.
# Measured 37x slower entity creation with it on (0.18 -> 6.65 ms/call),
# and a snapshot of a 5000-entity drawing costs 130 ms / 658 KB. For a
# single checkpoint use transaction_begin/rollback instead.
# The live COM backend uses AutoCAD's own undo and ignores this.
EZDXF_UNDO_DEPTH=0

# Opt-in 3D solids (COM backend only; ezdxf reports them as unsupported)
ENABLE_3D=false

# --- Limits and remote access -------------------------------------------------
# These four are read by config.py but were missing from this file, which made
# it look like the complete list. Two of them are the remote-HTTP controls.

# Reject DXF input larger than this many bytes. 0 disables the check.
MAX_DXF_BYTES=52428800

# Upper bound on list/selection response sizes.
MAX_LIST_LIMIT=5000

# Permit a non-loopback HTTP bind. Requires MCP_AUTH_TOKEN as well.
ALLOW_REMOTE_HTTP=false

# Bearer token required for remote HTTP. No default; remote binds refuse without it.
MCP_AUTH_TOKEN=