Caid MCP Server
caid-mcp
PyPI
v0.7.0
Published by an unidentified publisher — no publish provenance and no public repository, so the publisher could not be verified and the source cannot be independently located.
MCP server giving AI agents validated 3D modeling via CAiD + OCCT
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 8 = 92. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −6 | capability blast radius (high) — client exposure if the model is manipulated |
| −2 | publisher verification (unlinked) — no provenance/repo link, but the shipped source was fully read |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 9
high Tool "shell_object" exposes command/code executionMTC-CAP-001
Tool "shell_object" appears to run shell commands or evaluate code (keyword "shell" in tool name). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.
Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.
Location: tool shell_object
high Tool "add_caid_shell_feature" exposes command/code executionMTC-CAP-001
Tool "add_caid_shell_feature" appears to run shell commands or evaluate code (keyword "shell" in tool name). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.
Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.
Location: tool add_caid_shell_feature
high Shell/command execution in server code (caid_mcp/core.py)MTC-SRC-002
In the server's implementation (`caid_mcp/core.py:237`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: try: proc = subprocess.run( [sys.executable, "-c", script], capture_output=True, tex
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server caid_mcp/core.py
high Shell/command execution in server code (caid_mcp/tools/advanced.py)MTC-SRC-002
In the server's implementation (`caid_mcp/tools/advanced.py:53`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: try: proc = subprocess.run( [sys.executable, "-c", wrapper], capture_output=True,
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server caid_mcp/tools/advanced.py
high Shell/command execution in server code (caid_mcp/tools/parts_user.py)MTC-SRC-002
In the server's implementation (`caid_mcp/tools/parts_user.py:154`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: try: proc = subprocess.run( [sys.executable, "-c", wrapper], capture_output=True, te
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server caid_mcp/tools/parts_user.py
medium Untrusted input can drive an external actionMTC-FLOW-005
Untrusted-input tools ([freecad_library_browse, freecad_library_import]) co-exist with external-action tools ([shell_object, add_caid_shell_feature]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.
Evidence: untrusted [freecad_library_browse, freecad_library_import] → sinks [shell_object, add_caid_shell_feature]
Fix: Require confirmation for state-changing/egress actions triggered after processing untrusted content.
Location: flow freecad_library_browse → shell_object
low Mutating tool "shell_object" declares no destructiveHintMTC-CAP-005
Tool "shell_object" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.
Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.
Location: tool shell_object
low Mutating tool "add_caid_shell_feature" declares no destructiveHintMTC-CAP-005
Tool "add_caid_shell_feature" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.
Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.
Location: tool add_caid_shell_feature
low Shell/command execution in packaging/dev tooling (tests/test_caid_mcp.py)MTC-SRC-002
In a packaging/dev/install script (shipped, but not the server runtime) (`tests/test_caid_mcp.py:529`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: "scene": scene} exec("result = caid.box(5, 5, 5)", exec_globals) assert "result" in exec_globals
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server tests/test_caid_mcp.py
Tools 177
Each tool and what it can reach — statically extracted from the published source.
add_caid_shell_featureruns code / shellfreecad_library_browseingests untrusted inputfreecad_library_importingests untrusted inputshell_objectruns code / shelladd_caid_assembly_componentno sensitive capabilityadd_caid_assembly_jointno sensitive capabilityadd_caid_assembly_scopeno sensitive capabilityadd_caid_basic_hole_featureno sensitive capabilityadd_caid_box_featureno sensitive capabilityadd_caid_chamfer_featureno sensitive capability
Show 167 more tools ↓
add_caid_cut_extrude_featureno sensitive capabilityadd_caid_datum_axisno sensitive capabilityadd_caid_datum_planeno sensitive capabilityadd_caid_datum_pointno sensitive capabilityadd_caid_draft_featureno sensitive capabilityadd_caid_extrude_featureno sensitive capabilityadd_caid_fillet_featureno sensitive capabilityadd_caid_helix_path_featureno sensitive capabilityadd_caid_loft_featureno sensitive capabilityadd_caid_mate_connectorno sensitive capabilityadd_caid_metric_clearance_holeno sensitive capabilityadd_caid_mirror_featureno sensitive capabilityadd_caid_parameterno sensitive capabilityadd_caid_path_featureno sensitive capabilityadd_caid_rectangle_sketchno sensitive capabilityadd_caid_revolve_featureno sensitive capabilityadd_caid_sheet_metal_base_flangeno sensitive capabilityadd_caid_sheet_metal_edge_flangeno sensitive capabilityadd_caid_standard_holeno sensitive capabilityadd_caid_sweep_featureno sensitive capabilityadd_clearance_holeno sensitive capabilityadd_holeno sensitive capabilityadd_tap_holeno sensitive capabilityalign_objectsno sensitive capabilityapply_cad_mutationno sensitive capabilityapply_caid_assembly_planno sensitive capabilityassembly_addno sensitive capabilityassembly_mergeno sensitive capabilityassembly_moveno sensitive capabilityassembly_rotateno sensitive capabilityboolean_cutno sensitive capabilityboolean_intersectno sensitive capabilityboolean_unionno sensitive capabilitycapture_cad_stateno sensitive capabilitychamfer_solid_edgesno sensitive capabilitychamfer_wire_cornersno sensitive capabilitycheck_caid_assembly_interferenceno sensitive capabilitycheck_object_validno sensitive capabilitycheck_protected_geometryno sensitive capabilityclear_sceneno sensitive capabilityclose_caid_assemblyno sensitive capabilityclose_caid_documentno sensitive capabilitycombine_objectsno sensitive capabilitycompare_rendersno sensitive capabilitycreate_arcno sensitive capabilitycreate_array_on_curveno sensitive capabilitycreate_assemblyno sensitive capabilitycreate_belt_wireno sensitive capabilitycreate_boltno sensitive capabilitycreate_boxno sensitive capabilitycreate_cad_checkpointno sensitive capabilitycreate_caid_assemblyno sensitive capabilitycreate_caid_documentno sensitive capabilitycreate_caid_geometry_referenceno sensitive capabilitycreate_circleno sensitive capabilitycreate_circular_patternno sensitive capabilitycreate_coneno sensitive capabilitycreate_cylinderno sensitive capabilitycreate_extruded_polygonno sensitive capabilitycreate_groupno sensitive capabilitycreate_layerno sensitive capabilitycreate_lineno sensitive capabilitycreate_linear_patternno sensitive capabilitycreate_nutno sensitive capabilitycreate_polylineno sensitive capabilitycreate_pulley_assemblyno sensitive capabilitycreate_revolved_profileno sensitive capabilitycreate_sphereno sensitive capabilitycreate_splineno sensitive capabilitycreate_torusno sensitive capabilitycreate_warehouse_bearingno sensitive capabilitycreate_warehouse_fastenerno sensitive capabilitycreate_washerno sensitive capabilitydelete_objectno sensitive capabilitydistribute_objectsno sensitive capabilityduplicate_objectno sensitive capabilityexploded_viewno sensitive capabilityexport_brepno sensitive capabilityexport_stepno sensitive capabilityexport_stlno sensitive capabilityextend_curveno sensitive capabilityextrude_surfaceno sensitive capabilityfillet_solid_edgesno sensitive capabilityfillet_wire_cornersno sensitive capabilityfind_caid_assembly_componentsno sensitive capabilityfind_edges_near_pointno sensitive capabilityfind_faces_near_pointno sensitive capabilityfind_partsno sensitive capabilityfreecad_library_searchno sensitive capabilityget_caid_assembly_bomno sensitive capabilityget_caid_assembly_stateno sensitive capabilityget_caid_document_stateno sensitive capabilityget_object_propertiesno sensitive capabilityheal_objectno sensitive capabilityimport_brepno sensitive capabilityimport_caid_part_definitionno sensitive capabilityimport_partno sensitive capabilityimport_stepno sensitive capabilityinspect_caid_assembly_hierarchyno sensitive capabilityinspect_caid_documentno sensitive capabilityinspect_caid_referenceno sensitive capabilityinspect_objectno sensitive capabilityintersect_curvesno sensitive capabilityjoin_curvesno sensitive capabilitylist_caid_featuresno sensitive capabilitylist_caid_parametersno sensitive capabilitylist_caid_topologyno sensitive capabilitylist_caid_topology_rolesno sensitive capabilitylist_edgesno sensitive capabilitylist_facesno sensitive capabilitylist_fastener_sizesno sensitive capabilitylist_groupsno sensitive capabilitylist_layersno sensitive capabilitylist_objectsno sensitive capabilitylist_open_caid_assembliesno sensitive capabilitylist_open_caid_documentsno sensitive capabilitylist_snapshotsno sensitive capabilitylist_warehouse_partsno sensitive capabilitylist_warehouse_sizesno sensitive capabilitylocalize_caid_componentno sensitive capabilitylocalize_caid_componentsno sensitive capabilityloft_circle_to_rectno sensitive capabilityloft_profilesno sensitive capabilitymass_propertiesno sensitive capabilitymaterialize_caid_referenceno sensitive capabilitymeasure_caid_referencesno sensitive capabilitymeasure_distanceno sensitive capabilitymirror_objectno sensitive capabilityoffset_curveno sensitive capabilityopen_caid_assemblyno sensitive capabilityopen_caid_documentno sensitive capabilityorient_objectno sensitive capabilityplan_cad_mutationno sensitive capabilityplan_caid_assembly_localizationno sensitive capabilityproject_curveno sensitive capabilityrebuild_caid_documentno sensitive capabilityrename_caid_documentno sensitive capabilityrender_objectno sensitive capabilityrender_sceneno sensitive capabilityrestore_cad_checkpointno sensitive capabilityrestore_snapshotno sensitive capabilityreverse_curveno sensitive capabilityrotate_objectno sensitive capabilityrun_cadquery_scriptno sensitive capabilitysave_caid_assemblyno sensitive capabilitysave_caid_documentno sensitive capabilitysave_snapshotno sensitive capabilityscale_objectno sensitive capabilityscan_part_libraryno sensitive capabilitysearch_partsno sensitive capabilitysection_viewno sensitive capabilitysemantic_caid_capabilitiesno sensitive capabilityserver_infono sensitive capabilityset_caid_parameterno sensitive capabilityset_caid_scope_poseno sensitive capabilityset_object_propertiesno sensitive capabilitysimplify_objectno sensitive capabilitysolve_caid_assemblyno sensitive capabilitysplit_with_objectno sensitive capabilitysplit_with_planeno sensitive capabilitysuppress_caid_featureno sensitive capabilitysweep_along_pathno sensitive capabilitysweep_circle_along_pathno sensitive capabilitytranslate_objectno sensitive capabilityundono sensitive capabilityungroupno sensitive capabilityunroll_surfaceno sensitive capability
Toxic flows 1
Cross-tool combinations that form a data-exfiltration primitive (untrusted input → sensitive source → external sink).
What this scan could not see
- Tools were statically extracted from the published source (177 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 2
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v0.7.0 latest |
A 92/100 | 9 | 1.13.0 | 2026-08-25 |
v0.6.0 |
A 92/100 | 7 | 1.12.1 | 2026-07-27 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
npx mcptrustchecker scan caid-mcp --online --registry pypiMore in Developer Tools
Hotel booking MCP server — 300K+ properties, real confirmation numbers, loyalty programs. Builders monetize every booking via Stripe Connect. The first MCP server that completes real hotel reservations inside AI conversations.
Manage AdGuard Home through AI assistants
Read-only Azure DevOps for MCP clients using only your existing browser session — no PAT, no Azure CLI. Browse work items, pull requests, comments, attachments and Artifacts feeds across every project, repo and feed you can access.
MCP server for Adobe Experience Manager Assets integration development
Servidor MCP para el tiempo oficial de España (API pública OpenData de AEMET). Predicción, observación y avisos como herramientas MCP tipadas.
A standalone MCP stdio bridge for Affinity by Canva's local MCP SSE server.