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

Written for Cursor: installed under .cursor/.

Good fit It can initialize a memory model and run a forward pass using text or number vectors plus a structured memory state.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/henryhawke/mcp-titan/memory
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.

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/github.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/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for memory

Your own site · 80×15
<a href="https://agentmods.dev/rules/henryhawke/mcp-titan/memory"><img src="https://agentmods.dev/badge/rules/henryhawke/mcp-titan/memory.svg" alt="Reviewed on agentmods" width="80" 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. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00000 $0.05478
Opus 5.5 $0.00000 $0.02191
Sonnet 5.5 $0.00000 $0.01096
Haiku 4.5 $0.00000 $0.00548

Measured 1mo ago against content hash bc31eb8aef07, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 1mo 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. 1mo 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 (93 stars, last pushed 4mo 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.