Specification: Phase 6 Review and Regression Verification

Overview

Perform a comprehensive review and technical audit of the Phase 6 implementation. This track focuses on ensuring zero regressions via a full-suite batch test run and expanding test coverage for the four major "Advanced Context" features introduced in Phase 6.

Functional Requirements

Regression Testing: Execute the entire test suite (230+ tests) in batches of 4 files each to verify codebase stability.
Feature Coverage: Implement new integration and unit tests for:
- AST Tree Masking: Verify per-symbol masking logic against unconventional C++ samples from the gencpp project (components and dependencies).
- Text Slice Highlighting: Verify "Fuzzy Anchor" resolution resilience when files are modified.
- Takes Snapshotting: Verify that FileItem states (flags, masks, slices) are perfectly restored when branching/switching discussions.
- Batch Operations UX: Verify Shift-Click selection and mass-assignment logic.
Technical Audit: Review the Phase 6 commits to ensure adherence to Conductor workflow protocols (TDD, MMA delegation, and documentation sync).

Non-Functional Requirements

Stability: Ensure 0 regressions across the full suite.
Documentation: Synchronize guide_architecture.md and guide_tools.md with the new context mechanics.
Reporting: Generate a final Phase 6 Verification Report summarizing the findings.

Acceptance Criteria

Full suite batch run completes with 100% pass rate.
New tests for AST Masking, Text Slices, Snapshots, and Batch Ops are implemented and passing.
Verification of AST parsing successful against gencpp source samples.
Documentation updated to reflect the "Advanced Context Curation" architecture.
Final Audit Report created and approved.

Out of Scope

Functional changes to the RAG engine.
Implementation of new features beyond the Phase 6 scope.
Automated MMA orchestration for the gencpp project itself (this track is strictly for Manual Slop infrastructure verification).

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