* Add mental model CRUD tools to MCP server
Expose mental models (pinned reflections) as 6 new MCP tools:
- list_mental_models: List with optional tag filtering
- get_mental_model: Get by ID
- create_mental_model: Create with async content generation
- update_mental_model: Update name/source_query/tags
- delete_mental_model: Delete by ID
- refresh_mental_model: Re-run source query to update content
Both multi-bank (bank_id param) and single-bank modes supported,
following the same patterns as existing retain/recall/reflect tools.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: include mental model tools in single-bank MCP mode and update tests
The single-bank mode tool set was hardcoded to only retain/recall/reflect,
excluding the new mental model tools. Updated all 3 test layers (unit,
routing, HTTP integration) to assert mental model tool exposure.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: update extension test tool count for mental model tools
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: move mental model usage metering into engine for MCP support
Mental model validation hooks (validate_mental_model_get, validate_mental_model_refresh)
were only called in REST HTTP handlers, not in the engine. MCP tools call engine methods
directly, so usage metering was skipped entirely for MCP mental model operations.
Moved pre-validation and post-completion hooks into memory_engine.py (matching the
retain/recall/reflect pattern) and removed the duplicate code from http.py.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: remove double validation from create_mental_model and add internal checks
- Remove pre-validation from create_mental_model since callers always call
submit_async_refresh_mental_model next (which validates), preventing
double credit checks
- Add is_internal checks to mental model metering validators (matching
the existing pattern for recall/reflect) so background worker tasks
skip billing
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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