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 skills add ComeOnOliver/skillshub --skill axiom-background-processinggit clone --depth 1 https://github.com/ComeOnOliver/skillshubWrote 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/comeonoliver/skillshub/axiom-background-processing)<a href="https://agentmods.dev/skills/comeonoliver/skillshub/axiom-background-processing"><img src="https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-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 5.1 | $0.00047 | $0.07242 |
| Opus 5 | $0.00023 | $0.03621 |
| Sonnet 5 | $0.00009 | $0.01448 |
| Haiku 4.5 | $0.00005 | $0.00724 |
Grade A, and why
axiom-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 4d 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 — 1,013 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Background Processing
Overview
Background execution is a privilege, not a right. iOS actively limits background work to protect battery life and user experience. Core principle: Treat background tasks as discretionary jobs — you request a time window, the system decides when (or if) to run your code.
Key insight: Most "my task never runs" issues stem from registration mistakes or misunderstanding the 7 scheduling factors that govern execution. This skill provides systematic debugging, not guesswork.
Energy optimization: For reducing battery impact of background tasks, see axiom-energy skill. This skill focuses on task mechanics — making tasks run correctly and complete reliably.
Requirements: iOS 13+ (BGTaskScheduler), iOS 26+ (BGContinuedProcessingTask), Xcode 15+
Example Prompts
Real questions developers ask that this skill answers:
1. "My background task never runs. I register it, schedule it, but nothing happens."
→ The skill covers the registration checklist and debugging decision tree for "task never runs" issues
2. "How do I test background tasks? They don't seem to trigger in the simulator."
→ The skill covers LLDB debugging commands and simulator limitations
3. "My task gets terminated before it completes. How do I extend the time?"
→ The skill covers task types (BGAppRefresh 30s vs BGProcessing minutes), expiration handlers, and incremental progress saving
4. "Should I use BGAppRefreshTask or BGProcessingTask? What's the difference?"
→ The skill provides decision tree for choosing the correct task type based on work duration and system requirements
5. "How do I integrate Swift 6 concurrency with background task expiration?"
→ The skill covers withTaskCancellationHandler patterns for bridging BGTask expiration to structured concurrency
6. "My background task works in development but not in production."
→ The skill covers the 7 scheduling factors, throttling behavior, and production debugging
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.
- 4d ago First seen · 1,013 lines · 47 tokens per session scan A 905b121c380d
axiom-background-processing is a skill published in the GitHub repository ComeOnOliver/skillshub (63 stars, last pushed 2mo ago), licensed MIT. It adds 47 tokens to every session and 7,242 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 2026-09-03.
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