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FreeCAD MCP bridge (blwfish/freecad-mcp)MCADConfidence: Medium

A FreeCAD MCP bridge's autosave-before-call rewrote the active document on every tool call even with zero unsaved changes, stamping phantom diffs onto git-tracked CAD files. Agent activity pollutes version control with edits no human authored.

Impact Analysis

Persona
Mechanical Designer
Team Size Impact
5x Multiplier
Prototype Delay
0 Days
Est. Annual Cost
$13,500
  • 1 user · 1 month180 min
  • Rest of team720 min
  • Rest of year9,900 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $13.5k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources
freecad-mcp PR #102: autosave rewrote unchanged version-controlled CAD files on every call
github.com
→

Analyst Notes

From the 2026-10-05 pain-radar digest (finding 2): user report with byte-level evidence (4253 to 4259 bytes, new mtime, spurious git diff). Single user, maintainer-fixed. Prototype delay set to 0: this costs review and hygiene time, not board spins.