Codex Adapter Instructions

September 4, 2026 · View on GitHub

This crate may read and normalize Codex user Instructions, Subagent, MCP, and Hook configuration but must never invoke Hook handlers, start Codex/app-server, connect MCP servers, or own trust, enablement, or product policy.
Keep commands, prompts, arguments, environment values, and credentials inside the adapter. Public contracts expose only bounded summaries.
Preserve native Codex event and handler names. Map only reviewed OpenBitFun Hook points; report every other event as native-only.
Preserve Codex configuration-layer and field-overlay semantics inside each typed provider. Unknown behavior fields must block explicitly; do not invent Codex Command or standalone Tool sources.
Do not depend on another ecosystem adapter. Shared product behavior belongs in contracts or assembly.