APR-Lite Phase 6 Technical Note: Coalition Drift and Cross-Agent Memory Governance in Regulated Multi-Agent AI Systems
Year: 2026
Type: article
Abstract: This technical note describes Phase 6.0 of the APR-Lite governance platform: Coalition Drift and Cross-Agent Memory. Phase 6.0 introduces two governance surfaces not present in prior phases. Coalition drift detects governance patterns that only emerge when examining multiple agents collectively — drift that is invisible at the individual agent level but visible across the coalition. Cross-agent memory governs memory sharing between agents in a coalition under explicit policy, without collapsing into an unbounded shared memory pool. Both surfaces are implicit: they run inside existing routes (session/step, routing/resolve, memory/retrieve) with no new public endpoints. A new CRITICAL severity tier is introduced, representing coalition-level freeze. The implementation is validated against a 16-test smoke suite. Phase 6.1 (cross-session coalition patterns and observability endpoints) is deferred.
Author: Truong, Narnaiezzsshaa
Language: English
Subfield: Safety Research
Field: Social Sciences
Domain: Social Sciences
Open Access status: green
OpenAlex ID: W7140162672
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