---
phase: 04-cross-framework-linking
plan: 02
subsystem: mcp-tools
tags: [entity-linking, mcp, tools]
requires:
- phase: 04-01
provides: Storage linking functions (linkEntities, unlinkEntities, getLinkedEntities)
provides:
- MCP tools for entity linking (link_entities, unlink_entities, get_linked_entities)
- Tool schemas for input validation
affects: [04-03-export]
tech-stack:
added: []
patterns:
- Tool wrapper pattern for storage functions
key-files:
created:
- src/tools/linking.ts
- src/tools/linking.test.ts
modified:
- src/tools/index.ts
- src/index.ts
key-decisions:
- "Tool functions wrap storage helpers directly"
- "Return success/message object for link/unlink tools"
patterns-established:
- "Tool functions return success boolean with message for mutation operations"
duration: 5min
completed: 2026-01-15
---
# Phase 4 Plan 2: Create Linking Tools Summary
**MCP tools for entity linking: link_entities, unlink_entities, get_linked_entities with Zod schemas and full test coverage**
## Performance
- **Duration:** 5 min
- **Started:** 2026-01-15T00:20:00Z
- **Completed:** 2026-01-15T00:25:00Z
- **Tasks:** 4
- **Files modified:** 4
## Accomplishments
- Created linking tool functions wrapping storage helpers
- Exported tools from tools index
- Registered three new MCP tools in server
- Added comprehensive test suite with 12 tests
## Task Commits
Each task was committed atomically:
1. **Task 1: Create linking tool functions** - `f3a0f20` (feat)
2. **Task 2: Export from tools index** - `1c6fe45` (feat)
3. **Task 3: Register tools in MCP server** - `ced7256` (feat)
4. **Task 4: Add tool tests** - `ea9a67a` (test)
## Files Created/Modified
- `src/tools/linking.ts` - Tool functions and Zod schemas for linking
- `src/tools/linking.test.ts` - 12 tests covering all linking tool functions
- `src/tools/index.ts` - Added exports for linking tools
- `src/index.ts` - Registered link_entities, unlink_entities, get_linked_entities tools
## Decisions Made
None - followed plan as specified
## Deviations from Plan
None - plan executed exactly as written
## Issues Encountered
None
## User Setup Required
None - no external service configuration required.
## Next Phase Readiness
- Entity linking tools complete and tested
- Ready for 04-03 (update export to show relationships)
---
*Phase: 04-cross-framework-linking*
*Completed: 2026-01-15*
