rdmbair15m5-changelog-20260922-2330-doc-20260830-01-foundation-models-disclosure-boundary-audit

Host: rdmbair15m5 (Apple Silicon, macOS 27.2)
Date: 2026-09-22 23:30 EDT
Summary: Executed portfolio-wide static analysis and audit across all 57 applications on canonical rdmsm4x:~/dev/apps/ for Foundation Models / LanguageModelSession usage pursuant to DOC-20260830-01. Confirmed replicantDB is the sole consumer; verified explicit binding to SystemLanguageModel.default with zero accidental transmission to PrivateCloudComputeLanguageModel; verified the active enforcement test testNoSourceFileReferencesOffDeviceInference; and resolved DOC-20260830-01.

1. Scope & Objective

Audit all macOS portfolio applications against the binding standard defined in lib/app-baseline/PLATFORM_INTELLIGENCE_AND_PERFORMANCE.md §"The disclosure boundary":

• Ensure no application inadvertently routes user content off-device via PrivateCloudComputeLanguageModel.
• Enforce explicit binding of SystemLanguageModel.default at every LanguageModelSession initialization.
• Verify regression tests scan local packages and sources to guarantee zero references to off-device cloud inference in executable paths.

2. Key Actions Taken

A. Portfolio-Wide Static Analysis Scan

• Executed global recursive search for LanguageModelSession across all application directories on canonical dev root rdmsm4x:~/dev/apps/:
  • Scanned all 57 production applications.
  • Result: The sole application constructing or referencing LanguageModelSession is apps/replicantDB.

B. Call-Site Architecture Audit (replicantDB)

• Inspected apps/replicantDB/Sources/ReplicantDBClassifier/LocalIntelligence.swift:141:

  // The model is bound here and nowhere else. No parameter, no default argument, no
  // injection point — see the type's documentation for why that is deliberate.
  let session = LanguageModelSession(
      model: SystemLanguageModel.default,
      instructions: Self.instructions
  )

  Verified that no parameter injection, optional default fallback, or configuration switch allows substituting a cloud-routed model.

C. Safety Guard Test Suite Verification

• Inspected apps/replicantDB/Tests/ReplicantDBTests/LocalIntelligenceTests.swift:
  • testNoSourceFileReferencesOffDeviceInference: Dynamically resolves package dependency paths via SwiftPM JSON description and scans every .swift source file in Sources/ and all local package dependencies.
  • Test verifies that no source file in the build closure references PrivateCloudComputeLanguageModel.
  • Executed test suite with 100% pass rate.

D. Ticket Resolution & Fleet Broadcast

• Resolved DOC-20260830-01 in the canonical ticket store on rdmsm4x.
• Broadcasted audit findings and closure notice via agent_msg.zsh.

3. Verification Evidence

• Audit Scan Command: grep -rn 'LanguageModelSession' ~/dev/apps/ executed on rdmsm4x.
• Sole Consumer: apps/replicantDB/Sources/ReplicantDBClassifier/LocalIntelligence.swift.
• Bound Model: Explicit SystemLanguageModel.default.
• Enforcement Test: LocalIntelligenceTests.testNoSourceFileReferencesOffDeviceInference passing 100%.
• Ticket Status: DOC-20260830-01 moved to resolved/ with HTML ticket mirrors updated.