curriculum-project-hub/docs/adr/0001-project-group-is-collaboration-space.md

ADR 0001: Feishu Project Group Is The Collaboration Space

Status

Accepted.

Context

Teachers need to work on multiple curriculum projects at the same time. The previous mental model tied a teacher to one active project session, which makes multi-open workflows awkward and turns "exit project" into a confusing concept.

The revised product model is:

• one project has one long-lived Feishu project group;
• teachers discuss freely in the group;
• Claude does not process every group message;
• a teacher explicitly @Claude when Claude should join the current context and do work.

Decision

Treat the project group as a long-lived collaboration space, not as a lock owner and not as a temporary processing session.

The group can stay open while no Claude processing is active. A teacher leaving or muting a group is separate from project permissions and from Claude processing lifecycle.

Consequences

• Multi-open is natural: a teacher participates in multiple project groups.
• Normal group discussion does not occupy the project.
• "Exit project" should not be the normal action in the group workflow.
• ADR-0021 adds those explicit product rules: active project↔Feishu chat binding is strict 1:1, while archived historical bindings are retained so org admins can correct pilot setup mistakes without losing audit/session history.