memory_store accepts empty or missing content without validation

[loveRhythm1990]

Summary

memory_store does not validate that content is present and non-empty before persisting a memory. Calling the tool with an empty body or blank content succeeds and creates a useless memory record.

Steps to Reproduce

1. Call memory_store with an empty argument object:

   {}

2. Alternatively, call with an empty string:

   { "content": "" }

Expected Behavior

The API should reject the request with a clear validation error, e.g.:

content is required

Validation should happen before embedding is invoked.

Actual Behavior

The request succeeds and stores an empty memory, e.g.:

Stored memory 019efebd2e9d7ec39a3e95b910e1daab:

Impact

• Pollutes the memory store with empty records
• Wastes embedding API calls
• Makes downstream retrieval noisier

Environment

• MCP server: http://localhost/memoria-api/mcp
• Tool: memory_store
• Discovered during functional testing on 2026-06-25

Suggested Fix

Add server-side validation to reject missing or whitespace-only content before embedding/persistence.