novasplace/csm-codex-plugin

This project is a plugin that gives OpenAI's Codex coding assistant a persistent memory that carries over between separate sessions. Normally an AI coding assistant forgets everything once a conversation ends, but this plugin stores information like the assistant's ongoing goals, notes about the project, checkpoints, and a running work log in a local database, so the next session can pick up roughly where the last one left off. The plugin bundles a full set of memory related tools and behaviors, including onboarding steps for first use, ways to re-enter an existing project, a record of the assistant's beliefs and self-model, a history log called AgentBook, checkpoint saving, a context cache, goal tracking, automatic summarization of long histories, usage telemetry, and automation for handing work off between sessions. It is built specifically for Windows and requires a particular version of Node.js to run. Installation involves extracting a ZIP file, opening PowerShell in that folder, and running a single install script. That script checks every bundled file against a list before copying itself into a fixed location under the user's local application data folder, then registers itself with Codex's plugin system. After installing, the user restarts Codex, reviews and approves the plugin's hooks, and can ask Codex to check that its database connection is working. By default the plugin stores its data locally using SQLite, a lightweight file based database, though it can be configured to use PostgreSQL or OpenAI's embedding service instead by editing a configuration file. The project takes data handling seriously: the downloaded archive itself contains no credentials or personal file paths, and the installer verifies file integrity using checksum files before it will proceed, refusing to install if anything looks modified or incomplete.