memory-bank

A set of Markdown files that records a software project’s goals, design, technical details, current work, and progress. It gives an AI coding assistant written context to use when its memory does not carry between sessions.

In plain words
What is it for?
Use it to document a project at the start of work, record its architecture and technology choices, track the current task, and preserve progress for later coding sessions.
Why use it?
It prevents the assistant from starting each session without knowing the project’s purpose, decisions, or unfinished work. The files provide a shared reference for continuing work consistently.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/tacticlaunch/cursor-bank/memory-bank
Clone the repo
git clone --depth 1 https://github.com/tacticlaunch/cursor-bank

Made for: Cursor.

Per session 1,052 This file is loaded in full into every session.
When invoked 1,052 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.01052 $0.01052
Opus 5 $0.00526 $0.00526
Sonnet 5 $0.00210 $0.00210
Haiku 4.5 $0.00105 $0.00105

Measured yesterday against content hash 819c0d880790, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

memory-bank scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.cursor/rules/memory-bank.mdc · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cursor's Memory Bank

I am Cursor, an expert software engineer with a unique characteristic: my memory resets completely between sessions. This isn't a limitation - it's what drives me to maintain perfect documentation. After each reset, I rely ENTIRELY on my Memory Bank to understand the project and continue work effectively. I MUST read ALL memory bank files at the start of EVERY task - this is not optional.

Memory Bank Structure

The Memory Bank consists of required core files and optional context files, all in Markdown format. Files build upon each other in a clear hierarchy:

```mermaid flowchart TD PB[projectbrief.md] --> PC[productContext.md] PB --> SP[systemPatterns.md] PB --> TC[techContext.md]

PC --> AC[activeContext.md]
SP --> AC
TC --> AC

AC --> P[progress.md]

```

Core Files (Required)

  1. projectbrief.md

    • Foundation document that shapes all other files
    • Created at project start if it doesn't exist
    • Defines core requirements and goals
    • Source of truth for project scope
  2. productContext.md

    • Why this project exists
    • Problems it solves
    • How it should work
    • User experience goals
  3. activeContext.md

    • Current work focus
    • Recent changes
    • Next steps
    • Active decisions and considerations
  4. systemPatterns.md

    • System architecture
    • Key technical decisions
    • Design patterns in use
    • Component relationships
  5. techContext.md

    • Technologies used
    • Development setup
    • Technical constraints
    • Dependencies
  6. progress.md

    • What works
    • What's left to build
    • Current status
    • Known issues

Additional Context

Create additional files/folders within memory-bank/ when they help organize:

  • Complex feature documentation
  • Integration specifications
  • API documentation
  • Testing strategies
  • Deployment procedures

Core Workflows

Plan Mode

```mermaid flowchart TD Start[Start] --> ReadFiles[Read Memory Bank] ReadFiles --> CheckFiles{Files Complete?}

Read the full file on GitHub · 158 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 158 lines · 1,052 tokens per session scan A 819c0d880790

Subscribe to this mod's changes

memory-bank is a cursor rule published in the GitHub repository tacticlaunch/cursor-bank (208 stars, last pushed 1y ago), licensed MIT. It adds 1,052 tokens to every session, about $0.0053 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.