# Implementation Plan: Architecture Boundary Hardening

Architecture reference: [docs/guide_architecture.md](../../../docs/guide_architecture.md)

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## Phase 1: Patch Context Amnesia Leak & Portability (Meta-Tooling) [checkpoint: 15536d7]
Focus: Stop `mma_exec.py` from injecting massive full-text dependencies and remove hardcoded external paths.

- [x] Task 1.1: In `scripts/mma_exec.py`, completely remove the `UNFETTERED_MODULES` constant and its associated `if dep in UNFETTERED_MODULES:` check. Ensure all imported local dependencies strictly use `generate_skeleton()`. 6875459
- [x] Task 1.2: In `scripts/mma_exec.py` and `scripts/claude_mma_exec.py`, remove the hardcoded reference to `C:\projects\misc\setup_*.ps1`. Rely on the active environment's PATH to resolve `gemini` and `claude`, or provide an `.env` configurable override. b30f040

## Phase 2: Complete MCP Tool Integration & Seal HITL Bypass (Application Core) [checkpoint: 1a65b11]
Focus: Expose all native MCP tools in the config and GUI, and ensure mutating tools trigger user approval.

- [x] Task 2.1: Update `manual_slop.toml` and `project_manager.py`'s `default_project()` to include all new tools (e.g., `set_file_slice`, `py_update_definition`, `py_set_signature`) under `[agent.tools]`. e4ccb06
- [x] Task 2.2: Update `gui_2.py`'s settings/config panels to expose toggles for these new tools. 4b7338a
- [x] Task 2.3: In `mcp_client.py`, define a `MUTATING_TOOLS` constant set. 1f92629
- [x] Task 2.4: In `ai_client.py`'s provider loops (`_send_gemini`, `_send_gemini_cli`, `_send_anthropic`, `_send_deepseek`), update the tool execution logic: if `name in mcp_client.MUTATING_TOOLS`, it MUST trigger a GUI approval mechanism (like `pre_tool_callback`) before dispatching the tool. e5e35f7

## Phase 3: DAG Engine Cascading Blocks (Application Core) [checkpoint: 80d79fe]
Focus: Prevent infinite deadlocks when Tier 3 workers fail repeatedly.

- [x] Task 3.1: In `dag_engine.py`, add a `cascade_blocks()` method to `TrackDAG`. This method should iterate through all `todo` tickets and if any of their dependencies are `blocked`, mark the ticket itself as `blocked`. 5b8a073
- [x] Task 3.2: In `multi_agent_conductor.py`, update `ConductorEngine.run()`. Before calling `self.engine.tick()`, call `self.track_dag.cascade_blocks()` (or equivalent) so that blocked states propagate cleanly, allowing the `all_done` or block detection logic to exit the while loop correctly. 5b8a073