Heterogeneous Agent Development Use this skill when the bug or feature lives in the external CLI agent pipeline, not the normal server-side agent runtime. Use This Skill For - Adding or changing a driver under - Editing an adapter under - Debugging transport, , or - Fixing Claude Code stream-json bugs such as duplicate partial/full chunks, broken boundaries, missing , TodoWrite state drift, or subagent thread routing - Fixing Codex JSONL bugs such as mixed multi-tool messages, broken turn boundaries, or missing tool-result mapping - Fixing step-boundary, tool persistence, subagent thread, or…