PerryLink/dsh-memento

This is a purpose-built plugin that exists exclusively for DeepSeek Harness (DSH), adding bounded, layered cross-session memory with mandatory write approval and full persistent audit logging. It exposes a typed ctx.memory service seam and uses a local SQLite database stored at $DSH_HOME/dsh-memento/memory.db, no network access required, for persistent offline storage. To install, users can run the official DSH plugin command to pull it from npm, git, or a local tarball, and it is verified fully compatible with DSH v0.1.5-rc.2 across all major desktop platforms: Windows, macOS, and Linux.

The plugin organizes memory into two tracks (user facts, agent environment facts) and two layers (global user, workspace), isolated per agent preset, with hard character limits enforced per track and layer. A frozen memory snapshot is injected into the system prompt once per session at first prompt assembly, and does not change mid-session. All writes go through an approval gate that cannot be bypassed by any model path, and even denied writes are logged as audit entries for full traceability. This plugin is ideal for DSH users that need persistent long-term context with security controls over memory modifications.

dsh-memento is released under the open-source Apache 2.0 license, so it is free to use and modify for any personal or commercial purpose. It requires Node.js version 22.19 or higher, and does not need any network connectivity or native binary dependencies to run on your local machine. All existing configuration options can be edited either via the DSH settings sidebar or by manually editing the cordis.yml configuration file. When you uninstall the plugin, your existing memory database and audit logs are retained, so no stored context is lost during removal.