Threading & Multi-Threading

Threading & Multi-Threading is a skill for Claude Code, Codex from delphicleancode/lazarus-spec-kit. It costs 46 tokens per session (3,551 once invoked), scanned A, original, no licence file.

A guide to using threads in FreePascal and Lazarus, where threads let a program do work concurrently. It covers thread coordination, shared-data protection, producer-consumer designs, and cancellation.

In plain words
What is it for?
Use it when building background tasks with TThread, synchronizing UI updates, coordinating threads with events or locks, or adding cancellation.
Why use it?
It helps avoid unsafe access to shared data and common problems when background work interacts with the main application.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/delphicleancode/lazarus-spec-kit/threading
Any agent
npx skills add delphicleancode/lazarus-spec-kit --skill threading
Clone the repo
git clone --depth 1 https://github.com/delphicleancode/lazarus-spec-kit

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 Threading & Multi-Threading

README.md
[![agentmods](https://agentmods.dev/badge/skills/delphicleancode/lazarus-spec-kit/threading.svg)](https://agentmods.dev/skills/delphicleancode/lazarus-spec-kit/threading)
Your own site
<a href="https://agentmods.dev/skills/delphicleancode/lazarus-spec-kit/threading"><img src="https://agentmods.dev/badge/skills/delphicleancode/lazarus-spec-kit/threading.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,551 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00046 $0.03551
Opus 5 $0.00023 $0.01775
Sonnet 5 $0.00009 $0.00710
Haiku 4.5 $0.00005 $0.00355

Measured 4d ago against content hash e4d0994ebf2e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Threading & Multi-Threading 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.

.claude/skills/threading/SKILL.md · 551 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 4d ago First seen · 551 lines · 46 tokens per session scan A e4d0994ebf2e

Subscribe to this mod's changes

Threading & Multi-Threading is a skill published in the GitHub repository delphicleancode/lazarus-spec-kit (17 stars, last pushed 5mo ago), with no licence file. It adds 46 tokens to every session and 3,551 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.