Stewards turn judgment into narrow reviewers you can reuse. Make one for billing, auth, migrations, or any concern worth watching; it checks the plan before you build and reviews what your agent ships back before you merge.
You add them one per concern, wherever something needs to keep working as the code changes.
Before the agent builds
Ask the event reliability steward about a telemetry plan. It spots the part that needs a test before your agent writes the first diff.
After the diff lands
The same steward reads the changed files, raises the concern that still needs you, then clears the check when the agent proves the fix.

One steward reviews your work wherever your agent runs: first when you plan it, then again before you merge it.
Plugin install, MCP auth, then define the steward from inside the repo.
/plugin marketplace add contextgraph/claude-code-plugin/plugin install stewardSign in to mcp.steward.foo when Claude Code prompts you.
/mcpRun this from inside your repo. The plugin walks the codebase and proposes a rubric for your approval.
/steward:define-steward