axiom-storage-management-ref

axiom-storage-management-ref is a skill for Claude Code, Codex from ComeOnOliver/skillshub. It costs 68 tokens per session (4,461 once invoked), scanned A, original, MIT.

A reference for managing disk space and cached files in iOS apps. It explains how iOS treats temporary files, caches, permanent app data, backup exclusions, and available capacity.

In plain words
What is it for?
Use it to check free space, mark caches for removal, exclude files from backups, monitor storage pressure, and decide where different files should live.
Why use it?
It helps apps respond sensibly to low storage and avoid having important data purged or unnecessary files included in backups.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to check free space, mark caches for removal, exclude files from backups, monitor storage pressure, and decide where different files should live.

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Install with agentmods
npx agentmods add skills/comeonoliver/skillshub/axiom-storage-management-ref
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 ComeOnOliver/skillshub --skill axiom-storage-management-ref
Clone the repo
git clone --depth 1 https://github.com/ComeOnOliver/skillshub

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 axiom-storage-management-ref

README.md
[![agentmods](https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-storage-management-ref/github.svg)](https://agentmods.dev/skills/comeonoliver/skillshub/axiom-storage-management-ref)
Your own site
<a href="https://agentmods.dev/skills/comeonoliver/skillshub/axiom-storage-management-ref"><img src="https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-storage-management-ref/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 axiom-storage-management-ref

Your own site · 80×15
<a href="https://agentmods.dev/skills/comeonoliver/skillshub/axiom-storage-management-ref"><img src="https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-storage-management-ref.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,461 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 $0.00068 $0.04461
Opus 5 $0.00034 $0.02230
Sonnet 5 $0.00014 $0.00892
Haiku 4.5 $0.00007 $0.00446

Measured 9d ago against content hash e5e629eb0b6d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

axiom-storage-management-ref 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 9d 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.

skills/CharlesWiltgen/Axiom/axiom-storage-management-ref/SKILL.md · 615 lines

How it starts

The opening of the file, as written. The whole thing — 615 lines — stays where its author put it; the contents beside it link to each section on GitHub.

iOS Storage Management Reference

Purpose: Comprehensive reference for storage pressure, purging policies, disk space, and URL resource values Availability: iOS 5.0+ (basic), iOS 11.0+ (modern capacity APIs) Context: Answer to "Does iOS provide any way to mark files as 'purge as last resort'?"

When to Use This Skill

Use this skill when you need to:

  • Understand iOS file purging behavior
  • Check available disk space correctly
  • Set purge priorities for cached files
  • Exclude files from backup
  • Monitor storage pressure
  • Mark files as purgeable
  • Understand volume capacity APIs
  • Handle "low storage" scenarios

The Core Question

"Does iOS provide any way to mark files as 'purge as last resort'?"

Answer: Not directly, but iOS provides two approaches:

  1. Location-based purging (implicit priority):

    • tmp/ → Purged aggressively (anytime)
    • Library/Caches/ → Purged under storage pressure
    • Documents/, Application Support/ → Never purged
  2. Capacity checking (explicit strategy):

    • volumeAvailableCapacityForImportantUsage — For must-save data
    • volumeAvailableCapacityForOpportunisticUsage — For nice-to-have data
    • Check before saving, choose location based on available space

URL Resource Values for Storage

Complete Reference Table

Resource Key Type Purpose Availability
volumeAvailableCapacityKey Int64 Total available space iOS 5.0+
volumeAvailableCapacityForImportantUsageKey Int64 Space for essential files iOS 11.0+
volumeAvailableCapacityForOpportunisticUsageKey Int64 Space for optional files iOS 11.0+
volumeTotalCapacityKey Int64 Total volume capacity iOS 5.0+
isExcludedFromBackupKey Bool Exclude from iCloud/iTunes backup iOS 5.1+
isPurgeableKey Bool System can delete under pressure iOS 9.0+
fileAllocatedSizeKey Int64 Actual disk space used iOS 5.0+
totalFileAllocatedSizeKey Int64 Total allocated (including metadata) iOS 5.0+

Read the full file on GitHub · 615 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. 9d ago First seen · 615 lines · 68 tokens per session scan A e5e629eb0b6d

Subscribe to this mod's changes

axiom-storage-management-ref is a skill published in the GitHub repository ComeOnOliver/skillshub (63 stars, last pushed 2mo ago), licensed MIT. It adds 68 tokens to every session and 4,461 once invoked, about $0.0003 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 2026-09-03.