Bridge Commons: Shared Contract

This document defines the shared contract that all bridge adapters implement. Every bridge reads this document and conforms to the schemas, status semantics, artifact format, and pre-flight ordering defined here.

What Bridges Are

Bridges are reference adapters — they define how to dispatch tasks to specific AI runtimes (Claude Code sub-agents, Gemini CLI, Codex CLI, OpenCode). Each bridge:

• Is a reference document, not a runnable skill
• Is read by orchestrating skills (e.g., deep-council) via the Read tool
• Has its instructions embedded into Task agent prompts — not invoked separately
• Returns a structured report conforming to this contract
• Is non-blocking — unavailability produces SKIPPED, not a failure

Pre-Flight SOP

Every bridge executes these checks in order before dispatching. Deviate only where a bridge's specific connection chain differs.