umodel-rca

umodel-rca is a skill for Claude Code from alibaba/UnifiedModel. It costs 165 tokens per session (1,758 once invoked), scanned A, original, no licence file.

A root-cause analysis skill that investigates service problems through UModel, a semantic model of objects and their relationships.

In plain words
What is it for?
Use it to investigate incidents, outages, latency or error spikes, service degradation, and breached service-level objectives.
Why use it?
It provides a guided way to gather evidence when a service is slow, returning errors, timing out, or missing its reliability targets.

Skill for Claude Code ✓ vendor

Written for Claude Code: shipped in a Claude Code plugin.

Part of the umodel plugin — 3 skills shipped together

Good fit Use it to investigate incidents, outages, latency or error spikes, service degradation, and breached service-level objectives.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/alibaba/unifiedmodel/umodel-rca
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.

Any agent
npx skills add alibaba/UnifiedModel --skill umodel-rca
Clone the repo
git clone --depth 1 https://github.com/alibaba/UnifiedModel

Made for: Claude Code.

Or install umodel, the plugin that ships this one along with the rest of its 3 skills.

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 umodel-rca

README.md
[![agentmods](https://agentmods.dev/badge/skills/alibaba/unifiedmodel/umodel-rca/github.svg)](https://agentmods.dev/skills/alibaba/unifiedmodel/umodel-rca)
Your own site
<a href="https://agentmods.dev/skills/alibaba/unifiedmodel/umodel-rca"><img src="https://agentmods.dev/badge/skills/alibaba/unifiedmodel/umodel-rca/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for umodel-rca

Your own site · 80×15
<a href="https://agentmods.dev/skills/alibaba/unifiedmodel/umodel-rca"><img src="https://agentmods.dev/badge/skills/alibaba/unifiedmodel/umodel-rca.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 165 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,758 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00165 $0.01758
Opus 5 $0.00082 $0.00879
Sonnet 5 $0.00033 $0.00352
Haiku 4.5 $0.00016 $0.00176

Measured 9d ago against content hash 454462834e65, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

umodel-rca 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 9d 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.

skills/umodel-rca/SKILL.md · 194 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

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.

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. 9d ago First seen · 194 lines · 165 tokens per session scan A 454462834e65

Subscribe to this mod's changes

umodel-rca is a skill published in the GitHub repository alibaba/UnifiedModel (367 stars, last pushed 6d ago), with no licence file. It adds 165 tokens to every session and 1,758 once invoked, about $0.0008 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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