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/christian289/dotnet-with-claudecode/processing-parallel-tasksnpx skills add christian289/dotnet-with-claudecode --skill processing-parallel-tasksgit clone --depth 1 https://github.com/christian289/dotnet-with-claudecodeWrote 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/christian289/dotnet-with-claudecode/processing-parallel-tasks)<a href="https://agentmods.dev/skills/christian289/dotnet-with-claudecode/processing-parallel-tasks"><img src="https://agentmods.dev/badge/skills/christian289/dotnet-with-claudecode/processing-parallel-tasks.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 | $0.00032 | $0.00805 |
| Opus 5 | $0.00016 | $0.00402 |
| Sonnet 5 | $0.00006 | $0.00161 |
| Haiku 4.5 | $0.00003 | $0.00081 |
Grade A, and why
processing-parallel-tasks 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 — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.
.NET Parallel Processing
A guide for APIs and patterns for parallel processing of CPU-bound tasks.
Quick Reference: See QUICKREF.md for essential patterns at a glance.
1. Core APIs
| API | Purpose |
|---|---|
Parallel.For, Parallel.ForEach |
CPU-bound parallel processing |
PLINQ (.AsParallel()) |
LINQ query parallelization |
Partitioner<T> |
Large data partitioning |
ConcurrentDictionary<K,V> |
Thread-safe dictionary |
2. Parallel Class
2.1 Parallel.ForEach
public sealed class ImageProcessor
{
public void ProcessImages(IEnumerable<string> imagePaths)
{
var options = new ParallelOptions
{
MaxDegreeOfParallelism = Environment.ProcessorCount
};
Parallel.ForEach(imagePaths, options, path =>
{
ProcessImage(path);
});
}
}
2.2 Early Termination
Parallel.For(0, data.Length, (i, state) =>
{
if (data[i] == target)
{
state.Break();
}
});
3. PLINQ
var results = data
.AsParallel()
.WithDegreeOfParallelism(Environment.ProcessorCount)
.Where(d => d.IsValid)
.Select(d => Transform(d))
.ToList();
// When order preservation is needed
var results = data
.AsParallel()
.AsOrdered()
.Select(d => Process(d))
.ToList();
4. Thread-Safe Collections
| Collection | Purpose |
|---|---|
ConcurrentDictionary<K,V> |
Thread-safe dictionary |
ConcurrentQueue<T> |
Thread-safe FIFO queue |
ConcurrentBag<T> |
Thread-safe unordered collection |
// Collecting results during parallel processing
var results = new ConcurrentBag<Result>();
Parallel.ForEach(data, item =>
{
var result = Process(item);
results.Add(result);
});
5. ThreadLocal
Prevents contention with thread-local variables
private readonly ThreadLocal<StringBuilder> _localBuilder =
new(() => new StringBuilder());
public void ProcessInParallel()
{
Parallel.For(0, 1000, i =>
{
var sb = _localBuilder.Value!;
sb.Clear();
sb.Append(i);
});
}
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 · 155 lines · 32 tokens per session scan A bdabfdd7c72d
processing-parallel-tasks is a skill published in the GitHub repository christian289/dotnet-with-claudecode (41 stars, last pushed 1mo ago), licensed MIT. It adds 32 tokens to every session and 805 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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