concurrency-diagnostics SKILL.md skillA

concurrency-diagnostics from robsonkades/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add robsonkades/agent-skills/concurrency-diagnostics@git:20261016.c769bd8

Pins git:20261016.c769bd8 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
robsonkades/agent-skills
Path
skills/concurrency-diagnostics/SKILL.md
Versions recorded
5
Latest version
git:20261016.c769bd8, committed Oct 16, 2026
First version recorded
Sep 6, 2026
Size
17,857 bytes
Repository stars
3
License
Apache-2.0

Evidence-led diagnosis of deadlock, starvation, livelock, saturation, leaks and virtual-thread scheduler problems. Compares traditional platform-thread dumps, jcmd all-thread dumps, ThreadMXBean, VirtualThreadSchedulerMXBean, JFR, wall/CPU profiles and application telemetry, including each tool's visibility and consistency limits. Use when progress stops, CPU and latency disagree, tasks disappear, shutdown hangs, or a virtual-thread dump is inconclusive.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Concurrency Diagnostics

## Purpose

Classify loss of progress before changing concurrency policy. Deadlock, starvation, saturation,
livelock, a slow dependency and leaked work can all produce high latency with little useful CPU,
but their confirming evidence and remediation differ.

This skill owns evidence collection and classification. It routes proven causes to the skills that
own JMM correctness, lock internals, executor lifecycle, virtual-thread mechanics or capacity.

## Evidence workflow

The reference baseline is HotSpot Java 25. Inspect the project's toolchain, runtime image,
actual vendor/update and diagnostic tool version before using the matrix. Scheduler MXBean
access requires Java 24+; virtual-thread dumps require a supporting runtime. Keep the target
version unchanged and use available evidence when a tool is unsupported or attach is denied.
Record that limitation instead of interpreting missing output as no threads or no contention.

Reuse relevant existing artifacts. Collect another view only when its missing evidence can change
the diagnosis or intervention. A supported explanation of a healthy wait can finish without a new
recording or a policy change.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add robsonkades/agent-skills/concurrency-diagnostics@sha256:c2a5e758931b4704

The line at the top of this page pins the label git:20261016.c769bd8, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_uy2sc4izrnhiwt2c.svg)](https://markdownregistry.com/a/art_uy2sc4izrnhiwt2c)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Sep 6, 2026 and Oct 16, 2026, about one every 10 days.

versioncommittedcommitsizeaudit
git:20261016.c769bd8 latest2026-10-16 c769bd8 17,857 BA view · diff
git:20260927.9ecadfd2026-09-27 9ecadfd 17,368 BA view · diff
git:20260923.832673e2026-09-23 832673e 15,806 BA view · diff
git:20260911.37b054b2026-09-11 37b054b 15,615 BA view · diff
git:20260906.e6ad4bd2026-09-06 e6ad4bd 14,478 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (17857 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

robsonkades/agent-skills · 3 stars · license Apache-2.0 · pushed 2026-10-28 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_uy2sc4izrnhiwt2c
GET https://markdownregistry.com/api/v1/resolve?ref=robsonkades/agent-skills/concurrency-diagnostics
GET https://markdownregistry.com/api/v1/blob/c2a5e758931b470468c9663b930e3a8c22b352e5e1dee19e4d14d0899176dfeb

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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