rsyslog-performance

rsyslog-performance is a skill for Codex from rsyslog/rsyslog. It costs 65 tokens per session (882 once invoked), scanned A, original, LGPL-3.0.

A procedure for improving rsyslog, a program that receives and writes system log messages, while checking that it still behaves correctly and securely. It uses representative workloads, separate baseline and candidate builds, profiling, and paired measurements.

In plain words
What is it for?
Use it to investigate or implement performance changes in rsyslog inputs such as TCP message reception and parsers, then compare the change against a measured baseline.
Why use it?
It reduces the risk of calling a change faster when the result is actually caused by measurement noise or an unrealistic test. It also requires explicit performance limits and correctness and security checks.

Skill for Codex

Written for Codex: agents/openai.yaml present.

About the project

rsyslog is a high-performance log processing system that receives logs from many sources, transforms and routes them, and sends them to destinations such as files, Kafka, Elasticsearch, or databases. It is used to build system and application logging pipelines, including remote forwarding and structured data processing. The catalogue contains skills and instructions for operating and working with rsyslog.

rsyslog/rsyslog · 2,335 stars · on GitHub · rsyslog.com

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/rsyslog/rsyslog/rsyslog-performance
Any agent
npx skills add rsyslog/rsyslog --skill rsyslog-performance
Clone the repo
git clone --depth 1 https://github.com/rsyslog/rsyslog

Made for: 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 rsyslog-performance

README.md
[![agentmods](https://agentmods.dev/badge/skills/rsyslog/rsyslog/rsyslog-performance.svg)](https://agentmods.dev/skills/rsyslog/rsyslog/rsyslog-performance)
Your own site
<a href="https://agentmods.dev/skills/rsyslog/rsyslog/rsyslog-performance"><img src="https://agentmods.dev/badge/skills/rsyslog/rsyslog/rsyslog-performance.svg" alt="Measured on agentmods" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 882 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 5.1 $0.00065 $0.00882
Opus 5 $0.00032 $0.00441
Sonnet 5 $0.00013 $0.00176
Haiku 4.5 $0.00006 $0.00088

Measured 6d ago against content hash b9059030a7c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

rsyslog-performance 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 6d 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.

.agent/skills/rsyslog-performance/SKILL.md · 89 lines

The source is not reproduced here

Licensed LGPL-3.0

The repository is licensed LGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

2 files 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.

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. 6d ago First seen · 89 lines · 65 tokens per session scan A b9059030a7c3

Subscribe to this mod's changes

rsyslog-performance is a skill published in the GitHub repository rsyslog/rsyslog (2,335 stars, last pushed 3d ago), licensed LGPL-3.0. It adds 65 tokens to every session and 882 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 2026-08-30.

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