# Execution Plan: Debug "do-memory-mcp Failed to get tools" Error

## Task Overview
Debug and fix the "Failed to get tools" error in the do-memory-mcp server. This requires research into latest MCP standards, code analysis, root cause identification, and fix implementation.

## Execution Strategy: Sequential with Quality Gates
- **Phase 1**: Web Research (CRITICAL DEPENDENCY - all later phases depend on this)
- **Phase 2**: Code Analysis & Diagnosis
- **Phase 3**: Root Cause Analysis
- **Phase 4**: Fix Implementation
- **Phase 5**: Verification & Testing

## Phase 1: MCP Standards Research (CRITICAL)

### Objective
Research latest MCP (Model Context Protocol) tool inspection best practices and validate current implementation against 2025 standards.

### Research Tasks
1. **Fetch Official Documentation**:
   - URL: https://modelcontextprotocol.io/docs/tools/inspector
   - Focus: Tool registration, discovery, and validation flow
   - Extract: Current MCP protocol version, tool schema requirements, best practices

2. **Analyze MCP Tool Registration**:
   - Tool list API requirements
   - Tool schema validation rules
   - Tool handler implementation patterns
   - Breaking changes or deprecations

3. **Repository Health Check**:
   - Check MCP spec repository maintenance status
   - Last commit activity
   - Recent releases and version tags
   - Active issue handling

4. **Identify Best Practices**:
   - Tool discovery mechanism
   - Schema validation requirements
   - Error handling patterns
   - Testing approaches

### Success Criteria
- [ ] Latest MCP documentation fetched and analyzed
- [ ] Tool registration requirements documented
- [ ] Current vs required protocol version identified
- [ ] Breaking changes or new requirements identified
- [ ] Repository health validated as active/maintained

### Quality Gate
Research must be completed and validated before proceeding to Phase 2.

---

## Phase 2: Code Analysis & Diagnosis

### Objective
Analyze do-memory-mcp implementation to identify misalignment with MCP standards.

### Analysis Tasks
1. **Locate MCP Server Implementation**:
   - Find main MCP server file(s) in `do-memory-mcp/src/`
   - Identify tool registration code
   - Locate tool handler implementations

2. **Examine Tool Registration**:
   - Find `tools()` or `list_tools` method
   - Check tool schema definitions
   - Verify tool export/listing mechanism

3. **Review MCP Protocol Implementation**:
   - Check protocol version used
   - Verify tool discovery mechanism
   - Examine error handling for tool listing

4. **Check Runtime Errors**:
   - Look for error logs or messages
   - Identify validation failures
   - Check for missing dependencies

### Success Criteria
- [ ] MCP server implementation files located
- [ ] Tool registration mechanism identified
- [ ] Protocol version documented
- [ ] Error sources pinpointed

### Quality Gate
Code analysis complete with clear findings before Phase 3.

---

## Phase 3: Root Cause Analysis

### Objective
Determine specific cause of "Failed to get tools" error.

### Analysis Tasks
1. **Compare Implementation vs Standards**:
   - Align current code with MCP requirements from Phase 1
   - Identify gaps or misconfigurations
   - Check for deprecated patterns

2. **Determine Error Origin**:
   - Protocol version mismatch
   - Invalid tool schema
   - Missing tool registration
   - Handler implementation issue
   - Dependency or build issue

3. **Document Root Cause**:
   - Specific error location (file:line)
   - Technical explanation
   - Impact assessment

### Success Criteria
- [ ] Root cause clearly identified
- [ ] Specific file:line references documented
- [ ] Fix strategy defined

### Quality Gate
Root cause validated before Phase 4.

---

## Phase 4: Fix Implementation

### Objective
Implement fix to resolve "Failed to get tools" error.

### Implementation Tasks
1. **Apply Code Changes**:
   - Update tool registration to match MCP standards
   - Fix schema validation issues
   - Update protocol version if needed
   - Add missing dependencies

2. **Code Quality**:
   - Follow project conventions (AGENTS.md)
   - Add comments explaining changes
   - Ensure rustfmt and clippy compliance

3. **Testing**:
   - Write/update tests for tool registration
   - Verify tool discovery works
   - Test all three tools: query_memory, analyze_patterns, advanced_pattern_analysis

### Success Criteria
- [ ] Code changes implemented
- [ ] Code quality checks pass (fmt, clippy)
- [ ] Tests pass
- [ ] Tool registration works correctly

### Quality Gate
All quality gates passed before Phase 5.

---

## Phase 5: Verification & Testing

### Objective
Verify fix resolves the error using MCP inspector guidelines.

### Verification Tasks
1. **Manual Testing**:
   - Start MCP server
   - Test tool discovery using MCP inspector
   - Verify all three tools are listed
   - Test each tool with sample requests

2. **Automated Testing**:
   - Run full test suite
   - Verify coverage maintained (>90%)
   - Check for regressions

3. **Documentation**:
   - Update any relevant docs
   - Document fix for future reference
   - Add troubleshooting notes if needed

### Success Criteria
- [ ] MCP server starts successfully
- [ ] Tool discovery returns all 3 tools
- [ ] Each tool executes correctly
- [ ] All tests pass
- [ ] Coverage maintained

### Final Quality Gate
All verification tasks complete and documented.

---

## Deliverables

### Required Deliverables
1. **Research Report** (Phase 1):
   - Latest MCP standards summary
   - Tool registration requirements
   - Breaking changes or new requirements

2. **Root Cause Analysis** (Phase 3):
   - Specific error cause (file:line)
   - Technical explanation
   - Impact assessment

3. **Fix Implementation** (Phase 4):
   - Code changes with file:line references
   - Rationale for each change
   - Testing approach

4. **Verification Report** (Phase 5):
   - MCP inspector test results
   - Tool discovery confirmation
   - Test results summary

### Documentation
- All analysis/reports stored in `plans/` folder
- Maximum 500 lines per file
- Clear file naming convention

---

## Risk Assessment

| Risk | Probability | Impact | Mitigation |
|------|------------|--------|------------|
| MCP standards changed significantly | Medium | High | Research Phase 1 will identify breaking changes |
| Multiple issues causing error | Medium | Medium | Systematic analysis in Phase 2-3 |
| Fix requires extensive refactoring | Low | High | Phase 3 analysis will scope changes needed |
| Breaking changes to API | Low | High | Test thoroughly in Phase 5 |

---

## Timeline Estimates

- Phase 1 (Research): 30-45 minutes
- Phase 2 (Code Analysis): 15-20 minutes
- Phase 3 (Root Cause): 10-15 minutes
- Phase 4 (Fix): 20-30 minutes
- Phase 5 (Verification): 15-20 minutes

**Total Estimated Time**: 90-130 minutes

---

## Progress Tracking

- Phase 1: ⬜ Not Started
- Phase 2: ⬜ Not Started (blocked by Phase 1)
- Phase 3: ⬜ Not Started (blocked by Phase 2)
- Phase 4: ⬜ Not Started (blocked by Phase 3)
- Phase 5: ⬜ Not Started (blocked by Phase 4)
