memory

memory is a cursor rule for Cursor from henryhawke/mcp-titan. It costs 0 tokens per session (5,478 once invoked), scanned A, original, MIT.

A set of tools and settings for giving a model a short-term and long-term memory while it processes text or data.

In plain words
What is it for?
It can initialize a memory model and run a forward pass using text or number vectors plus a structured memory state.
Why use it?
It provides a defined way to keep, update, and use information across processing steps instead of treating every input as completely new.

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/henryhawke/mcp-titan/memory
Clone the repo
git clone --depth 1 https://github.com/henryhawke/mcp-titan

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for memory

README.md
[![agentmods](https://agentmods.dev/badge/rules/henryhawke/mcp-titan/memory.svg)](https://agentmods.dev/rules/henryhawke/mcp-titan/memory)
Your own site
<a href="https://agentmods.dev/rules/henryhawke/mcp-titan/memory"><img src="https://agentmods.dev/badge/rules/henryhawke/mcp-titan/memory.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 5,478 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00000 $0.05478
Opus 5 $0.00000 $0.02739
Sonnet 5 $0.00000 $0.01096
Haiku 4.5 $0.00000 $0.00548

Measured 3d ago against content hash bc31eb8aef07, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

memory 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 3d ago.

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.

.cursor/rules/memory.mdc · 952 lines

How it starts

The opening of the file, as written. The whole thing — 952 lines — stays where its author put it; the contents beside it link to each section on GitHub.

🛠️ Complete Tool Usage Reference

Core Memory Tools

  1. init_model
interface InitModelParams {
  inputDim?: number; // Default: 768
  hiddenDim?: number; // Default: 512
  memoryDim?: number; // Default: 1024
  transformerLayers?: number; // Default: 6
  numHeads?: number; // Default: 8
  ffDimension?: number; // Default: 2048
  dropoutRate?: number; // Default: 0.1
  maxSequenceLength?: number; // Default: 512
  memorySlots?: number; // Default: 5000
  similarityThreshold?: number; // Default: 0.65
  surpriseDecay?: number; // Default: 0.9
  pruningInterval?: number; // Default: 1000
  gradientClip?: number; // Default: 1.0
}

const response = await callTool("init_model", {
  inputDim: 768,
  memorySlots: 10000,
  transformerLayers: 8,
});
  1. forward_pass
interface ForwardPassParams {
  x: number[] | string; // Input vector or text
  memoryState: {
    shortTerm: number[];
    longTerm: number[];
    meta: number[];
    timestamps: number[];
    accessCounts: number[];
    surpriseHistory: number[];
  };
}

const { predicted, memoryUpdate } = await callTool("forward_pass", {
  x: "const x = 5;", // or vector: [0.1, 0.2, ...]
  memoryState: currentMemory,
});
  1. train_step
interface TrainStepParams {
  x_t: number[] | string; // Current input
  x_next: number[] | string; // Next input
}

const result = await callTool("train_step", {
  x_t: "function hello() {",
  x_next: "  console.log('world');",
});
  1. get_memory_state
interface GetMemoryStateParams {
  type?: string; // Optional memory type filter
}

const state = await callTool("get_memory_state", {});
// Returns:
{
  stats: {
    meanActivation: number;
    patternDiversity: number;
    surpriseScore: number;
    timestamps: number[];
    accessCounts: number[];
  },
  capacity: number;
  status: "active" | "pruning" | "error";
}
  1. manifold_step
interface ManifoldStepParams {
  base: number[];    // Base memory state
  velocity: number[]; // Update direction
}

const newBase = await callTool("manifold_step", {
  base: memory.meta,
  velocity: [0.1, 0.2, ...] // or analysis.stats.meanActivation
});

Read the full file on GitHub · 952 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. 3d ago First seen · 952 lines · 5,478 tokens per session scan A bc31eb8aef07

Subscribe to this mod's changes

memory is a cursor rule published in the GitHub repository henryhawke/mcp-titan (91 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 5,478 tokens. 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.