Show HN: PMB – local memory for coding agents that shows if it is used
PMB is a local memory tool designed for coding agents that visually indicates when the stored memory is being accessed or used.
Background
- PMB (Persistent Memory Bank) is a developer tool that gives AI coding agents a local, project-specific memory that persists across sessions; the agent writes notes to a `memory/` folder, and PMB reports back whether that memory was actually read or used in the current conversation.
- The problem it tackles: AI coding assistants (like Claude, Copilot, Cursor) often forget context between chat sessions, forcing users to re-explain the codebase or project status. PMB lets the agent store its own "memory" in markdown files and then verifies that the memory is being referenced, not just written and ignored.
- The "shows if it is used" part is the distinguishing feature — most memory tools for AI agents simply store notes, but PMB also surfaces a simple yes/no signal (via a command-line readout or agent logs) to tell the developer whether the agent actually consulted its stored memory during a task.
- It's relevant to the growing ecosystem of "agentic" development tools where AI writes code autonomously; without reliable memory, agents constantly start from scratch, wasting tokens and producing inconsistent results.