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nexus: Skill for Claude Code

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

memory-backup is a skill for Claude Code from tslim/nexus. It costs 38 tokens per session (768 once invoked), scanned A, original, no licence file.

A backup tool for saving CLAUDE.md, TASKS.md, and the memory/ folder in a private Git repository.

In plain words
What is it for?
It helps back up these files with the provided Bash script.
Why use it?
It keeps important agent instructions, task notes, and memory files recoverable if the working copy is lost or changed.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is tslim/nexus's own configuration. It tells Claude Code how to work on nexus 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 nexus configures →

not rated 7repo +1 changed yesterday A scan 38 tokens no licence
View source ↗ tslim/nexus
Reuse

Borrowing it

Nothing to install: this file belongs to tslim/nexus. 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/tslim/nexus/main/.claude/skills/memory-backup/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/tslim/nexus

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-backup

README.md
[![agentmods](https://agentmods.dev/badge/skills/tslim/nexus/memory-backup/github.svg)](https://agentmods.dev/skills/tslim/nexus/memory-backup)
Your own site
<a href="https://agentmods.dev/skills/tslim/nexus/memory-backup"><img src="https://agentmods.dev/badge/skills/tslim/nexus/memory-backup/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-backup

Your own site · 80×15
<a href="https://agentmods.dev/skills/tslim/nexus/memory-backup"><img src="https://agentmods.dev/badge/skills/tslim/nexus/memory-backup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 768 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 $0.00038 $0.00768
Opus 5.5 $0.00015 $0.00307
Sonnet 5.5 $0.00008 $0.00154
Haiku 4.5 $0.00004 $0.00077

Measured yesterday against content hash 9588699a250b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

memory-backup 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.

The scan reads SKILL.md. This mod also ships 1 executable file (backup.sh), 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-backup/SKILL.md · 65 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

1 file 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. yesterday Changed · +5 lines 9588699a250b
  2. 2mo ago First seen · 60 lines · 38 tokens per session scan A 04f826eb08bb

Subscribe to this mod's changes

memory-backup is a skill published in the GitHub repository tslim/nexus (7 stars, last pushed 2d ago), with no licence file. It adds 38 tokens to every session and 768 once invoked, about $0.0002 per session on Opus 5.5. 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.

Git and workflowMemory and context
Related

memory-backup compared with skills from other repositories

memory-backup next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
memory-backuptslim/nexusSkill72d agononeA38Claude Code
git-ai-searchgit-ai-project/git-aiSkill2.9k2d agoApache-2.0A13Claude Code
rememberpacifio/atlasSkill9.5k2d agoApache-2.0A32Claude Code
releasematrixorigin/memoriaSkill6232d agoApache-2.0A27Claude Code, Codex
recall-rationaletobihagemann/turboSkill41914d agoMITA74Claude Code, Codex
change-boottikalk/adlc-team-skillsSkill144yesterdayMITA113Claude Code, Codex
jolli-searchjolliai/jolliaiSkill1493d agoApache-2.0A39Claude Code, Codex