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.
npx agentmods add skills/rshankras/claude-code-apple-skills/background-processingnpx skills add rshankras/claude-code-apple-skills --skill background-processinggit clone --depth 1 https://github.com/rshankras/claude-code-apple-skillsWrote 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.
[](https://agentmods.dev/skills/rshankras/claude-code-apple-skills/background-processing)<a href="https://agentmods.dev/skills/rshankras/claude-code-apple-skills/background-processing"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/background-processing.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00045 | $0.02078 |
| Opus 5 | $0.00023 | $0.01039 |
| Sonnet 5 | $0.00009 | $0.00416 |
| Haiku 4.5 | $0.00005 | $0.00208 |
Grade A, and why
background-processing 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 266 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Background Processing Generator
Generate production background processing infrastructure -- BGTaskScheduler for periodic refresh and long-running tasks, background URLSession for downloads/uploads that survive app termination, and silent push handling for server-triggered updates.
When This Skill Activates
Use this skill when the user:
- Asks to "add background processing" or "background tasks"
- Mentions "BGTaskScheduler" or "BGAppRefreshTask" or "BGProcessingTask"
- Wants "background refresh" or "periodic background updates"
- Asks about "background downloads" or "background uploads"
- Mentions "silent push" or "content-available push notifications"
- Wants data to sync or update while the app is in the background
- Asks about "background fetch" or "background execution"
Pre-Generation Checks
1. Project Context Detection
- Check deployment target (BGTaskScheduler requires iOS 13+)
- Check Swift version (requires Swift 5.9+)
- Check for @Observable support (iOS 17+ / macOS 14+)
- Identify source file locations
2. Existing Background Task Detection
Search for existing background task code:
Glob: **/*BackgroundTask*.swift, **/*BGTask*.swift, **/*BackgroundDownload*.swift
Grep: "BGTaskScheduler" or "BGAppRefreshTask" or "BGProcessingTask" or "backgroundSession"
If existing background code found:
- Ask if user wants to replace or augment it
- If augmenting, identify what is missing and generate only those pieces
3. Info.plist Check
Search for existing background modes configuration:
Grep: "BGTaskSchedulerPermittedIdentifiers" or "UIBackgroundModes"
Check for push notification entitlements if silent push is needed:
Glob: **/*.entitlements
Grep: "aps-environment"
Configuration Questions
Ask user via AskUserQuestion:
- What background processing do you need?
- App refresh (lightweight periodic updates -- weather, feeds, content)
- Data processing (long-running -- database cleanup, ML model updates, large syncs)
- Background downloads (files, media, assets that survive app termination)
- Silent push notifications (server-triggered content updates)
- Multiple (select which combination)
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.
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.
- 5d ago First seen · 266 lines · 45 tokens per session scan A 7bc3e87fda9d
background-processing is a skill published in the GitHub repository rshankras/claude-code-apple-skills (696 stars, last pushed 1mo ago), licensed MIT. It adds 45 tokens to every session and 2,078 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 2026-08-30.
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