Quophic/dsh-persona-memory

dsh-persona-memory is a native plugin built exclusively for DeepSeek Harness (DSH) that adds long-term persistent persona memory capabilities to DSH agents. It stores user facts, preferences, project context and lessons learned permanently on disk, and automatically injects relevant memory into every agent request context. The plugin supports automatic background learning, error correction tracking, failure memory logging and automatic memory consolidation to keep memory growing in a controlled way. Its disk format is fully byte-compatible with pi-hermes-memory, so DSH and Pi agents can read and write the same memory files interchangeably.

The plugin organizes memory by project, with each git repository getting its own isolated memory that is automatically injected based on the current working directory. It exposes a memory tool for reading, adding, updating, deleting and rewriting memory entries, and a memory_search tool that uses hybrid retrieval by default. Hybrid retrieval combines FTS5 full-text search and semantic vector search via reciprocal rank fusion (RRF), and gracefully falls back to FTS5-only or substring search if higher-level dependencies are unavailable. It also includes a built-in WebUI settings panel for managing memory, configuring plugin options, rebuilding indexes, and backing up or restoring memory data.

All new memory entries are scanned for security threats before being written to disk: prompt injection payloads, exposed API keys, tokens, private keys and invisible Unicode characters are all blocked to prevent malicious content and credential leaks. Standing instructions can only be added or modified by users via the /standing command or direct file editing, so the agent model cannot inject unauthorized rules into memory. Memory writes use atomic temporary file renaming and a single-lock serial queue to prevent concurrent writes from corrupting files, and it includes a pre-write fingerprint check to avoid overwriting changes made by external processes like Pi.