stabilize tests

docs/modules/excititor/changes.md

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+# Excititor Changes Log
+
+This file records breaking or behavior-changing updates for the Excititor module.
+Update this log whenever public contracts, schemas, or workflows change.
+
+## Format
+- Date (UTC)
+- Change summary
+- Impacted contracts or schemas
+- Migration notes (if required)
+
+## Entries
+- 2026-01-30: Log initialized. No breaking changes recorded.

docs/modules/excititor/implementation_plan.md

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+# Excititor Implementation Plan
+
+## Purpose
+Provide a living plan for Excititor deliverables, dependencies, and evidence.
+
+## Active work
+- Track current sprints under `docs/implplan/SPRINT_*.md` for this module.
+- Update this file when new scoped work is approved.
+
+## Near-term deliverables
+- TBD (add when sprint is staffed).
+
+## Dependencies
+- `docs/modules/excititor/architecture.md`
+- `docs/modules/excititor/README.md`
+- `docs/modules/platform/architecture-overview.md`
+
+## Evidence of completion
+- Code changes under `src/Excititor/**`.
+- Tests and fixtures under the module's `__Tests` / `__Libraries`.
+- Docs and runbooks under `docs/modules/excititor/**`.
+
+## Notes
+- Keep deterministic and offline-first expectations aligned with module AGENTS.