Records the design gate for moving agent conversion off the inline bin/install.js loop onto the descriptor path (ADR-3660): the two-(really three-)path problem, the 10 parity behaviors the descriptor agents path must gain (verified against code — the issue's 7 plus Qwen/Hermes branding, the Codex TOML sidecar, and stale-agent cleanup), an AgentConverterContext contract to fix the leaky (content)=>string converter signature, and an incremental per-runtime cutover gated on byte-for-byte golden parity (full + minimal mode). Status: Proposed. Codex-reviewed for technical accuracy.
Closes#1235
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
