prometeu-studio/discussion/lessons/DSC-0001-studio-docs-import/LSN-0008-project-scoped-state-and-activity-legacy.md

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id ticket title created tags
LSN-0008 studio-docs-import Project-scoped state and activity legacy lesson 2026-03-26
studio
legacy-import
project-state
activity

Context

Legacy import from docs/studio/learn/project-scoped-state-and-activity.md.

This lesson preserves the rule for project-local Studio state and shell activity persistence.

Relevant spec:

  • docs/studio/specs/1. Studio Shell and Workspace Layout Specification.md

Key Decisions

Project-local Studio state should live under .studio/ inside the project root

What: Project-local Studio state should be rooted at .studio/, shell activity should be persisted and restored per project, persisted history should be bounded, and .studio/ should remain the reserved root for future project-local Studio settings. Why: If project-local state is stored as if it were application-global, the shell mixes unrelated histories and stops teaching what happened in the currently opened project. Trade-offs: This design requires project-scoped persistence logic and bounded retention, but it preserves causality and keeps Studio-owned project data in one obvious root.

Patterns and Algorithms

  • Create .studio/ during new-project scaffolding.
  • Load shell activity when the project opens.
  • Append new activity to the current project's local history.
  • Trim persisted activity to the latest 500 entries.
  • Keep launcher-global concerns outside the project-local .studio/ root.

Pitfalls

  • Treating project activity as launcher-global state.
  • Mixing multiple projects into one persisted activity history.
  • Leaving project-local Studio files in ad hoc roots instead of .studio/.
  • Allowing activity persistence to grow without a hard cap.

Takeaways

  • Project-local history must preserve causality for the currently opened project.
  • .studio/ is the reserved home for project-scoped Studio state.
  • Legacy source attribution: docs/studio/learn/project-scoped-state-and-activity.md.