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TIA MCP Industrial automation MCP

Security posture

Crack-resistant, not unhackable

The security model is explicit about attacker capabilities. A determined local administrator can patch local checks, so authority, revocation, signing, and audit state stay server-side.

Server-authoritative access

Subscription, device, and GitHub-connected capabilities are represented by cloud state rather than local claims.

Signed entitlement documents

The desktop and MCP server can verify signed claims without receiving the signing private key.

Revocation-aware design

Offline access is bounded by an explicit window, trading usability for a known revocation delay.

Renderer token boundary

Raw provider tokens do not belong in desktop renderer code, localStorage, logs, or MCP process arguments.

Separate GitHub grants

GitHub login identifies a user; GitHub product connection authorizes repository/product features.

Evidence-first operations

Smoke, security smoke, packaging, and deployment verification scripts write explicit evidence and skips.

Control Current phase Security purpose
OAuth separation Designed, not implemented Prevents GitHub login from silently becoming product repository authorization.
Signed entitlements Designed, not implemented Lets local components verify server-issued access claims without owning signing secrets.
No raw provider tokens in renderer Required for desktop phase Reduces exposure through logs, localStorage, devtools, and MCP arguments.
Evidence scripts Implemented locally Records what passed, what skipped, and what still requires external deployment.