maintain

maintain is a skill for Claude Code, Codex from DorianSchlede/nexus-template. It costs 0 tokens per session (964 once invoked), scanned D, original, MIT.

A maintenance checker for a Nexus codebase. It runs health checks covering Git status, dependencies, workspace files, and leftover build folders.

In plain words
What is it for?
Use it for routine codebase maintenance, dependency checks, and cleanup reviews.
Why use it?
It helps reveal stale branches, dependency problems, orphaned folders, and other issues that accumulate during development.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: names the AskUserQuestion tool.

Good fit Use it for routine codebase maintenance, dependency checks, and cleanup reviews.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dorianschlede/nexus-template/maintain
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.

Any agent
npx skills add DorianSchlede/nexus-template --skill maintain
Clone the repo
git clone --depth 1 https://github.com/DorianSchlede/nexus-template

Made for: Claude Code, Codex.

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 maintain

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/dorianschlede/nexus-template/maintain"><img src="https://agentmods.dev/badge/skills/dorianschlede/nexus-template/maintain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 964 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 2 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 $0.00964
Opus 5 $0.00000 $0.00482
Sonnet 5 $0.00000 $0.00193
Haiku 4.5 $0.00000 $0.00096

Measured 8d ago against content hash 66779b3a19cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade D, and why

maintain scanned grade D with 2 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 8d 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

1. Clean old sessions: `find .claude/sessions -mtime +7 -delete`

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

2. Clean Python cache: `find . -type d -name __pycache__ -exec rm -rf {} +`
00-system/skills/system/maintain/SKILL.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/maintain - Nexus Codebase Maintenance

Overview

Validates maintenance operations, runs health checks, and helps keep the Nexus codebase clean and up-to-date. Combines deterministic maintenance scripts with intelligent analysis.

Arguments

  • --interactive or -i: Enable human-in-the-loop mode for guided maintenance

Workflow

Step 1: Check for Interactive Mode

IF arguments contain "--interactive" or "-i":
    → Execute interactive maintenance workflow (see below)
    → STOP here, do not continue to Step 2

Step 2: Read Maintenance Log

Read the maintenance log to understand what the maintenance hook did:

File: .claude/logs/maintenance.log

If the log doesn't exist, inform the user they should run just maintenance or claude --maintenance first.

Step 3: Additional Health Checks

Run checks beyond what the deterministic script does:

Git Status:

  • Any uncommitted changes?
  • Is the branch up to date with remote?
  • Any stale branches to clean up?

Dependency Health:

  • Are there any security vulnerabilities in dependencies?
  • Are major version updates available?

Nexus-Specific:

  • Any orphaned build directories?
  • Is user-config.yaml valid?
  • Are there stale session files?

Disk Usage:

  • How much space is the .claude directory using?
  • Are there large files that shouldn't be tracked?

Step 4: Generate Report

Create a summary document at .claude/logs/maintenance-report.md:

# Nexus Maintenance Report
Generated: [timestamp]

## Status: [HEALTHY | NEEDS_ATTENTION | ACTION_REQUIRED]

## Deterministic Checks (from script)
[Summarize what the maintenance script found]

## AI-Powered Analysis
[Additional findings from intelligent checks]

## Recommendations
[Prioritized list of actions]

## Metrics
- Total disk usage: X MB
- Session files: X (X old)
- Uncommitted changes: X files

Step 5: Report to User

Display maintenance status:

  • If healthy: Confirm everything looks good
  • If issues found: Explain each and offer to help fix

Read the full file on GitHub · 156 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. 8d ago First seen · 156 lines · 0 tokens per session scan D 66779b3a19cd

Subscribe to this mod's changes

maintain is a skill published in the GitHub repository DorianSchlede/nexus-template (8 stars, last pushed 7mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 964 tokens. A static security scan graded it D with 2 findings (reads agent configuration directories, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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