Hacathan_5: Skill for Claude Code

.claude/skills/memory-systems/SKILL.md

memory-systems is a skill for Claude Code from AbdullahMalik17/Hacathan_5. It costs 35 tokens per session (2,318 once invoked), scanned A, original, no licence file.

Guidance for building agent systems that keep information between sessions and maintain consistent records about people, things, or entities.

In plain words
What is it for?
Use it when designing persistent memory, session-to-session state, or structured knowledge for an agent system.
Why use it?
It helps prevent an agent from losing important context or creating conflicting records as work continues over time.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is AbdullahMalik17/Hacathan_5's own configuration. It tells Claude Code how to work on Hacathan_5 itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Hacathan_5 configures →

Reuse

Borrowing it

Nothing to install: this file belongs to AbdullahMalik17/Hacathan_5. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/AbdullahMalik17/Hacathan_5/main/.claude/skills/memory-systems/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/AbdullahMalik17/Hacathan_5

Made for: Claude Code.

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-systems

README.md
[![agentmods](https://agentmods.dev/badge/skills/abdullahmalik17/hacathan_5/memory-systems.svg)](https://agentmods.dev/skills/abdullahmalik17/hacathan_5/memory-systems)
Your own site
<a href="https://agentmods.dev/skills/abdullahmalik17/hacathan_5/memory-systems"><img src="https://agentmods.dev/badge/skills/abdullahmalik17/hacathan_5/memory-systems.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,318 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 unknown 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 $0.00035 $0.02318
Opus 5 $0.00017 $0.01159
Sonnet 5 $0.00007 $0.00464
Haiku 4.5 $0.00003 $0.00232

Measured 7d ago against content hash 06c1188b57c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

memory-systems 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 7d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/memory_store.py, scripts/verify.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.claude/skills/memory-systems/SKILL.md · 222 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 7d ago First seen · 222 lines · 35 tokens per session scan A 06c1188b57c8

Subscribe to this mod's changes

memory-systems is a skill published in the GitHub repository AbdullahMalik17/Hacathan_5 (9 stars, last pushed 6mo ago), with no licence file. It adds 35 tokens to every session and 2,318 once invoked, about $0.0002 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 2026-08-31.

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