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/microsoft/sre-agent/vm-performance-diagnosticsnpx skills add microsoft/sre-agent --skill vm-performance-diagnosticsgit clone --depth 1 https://github.com/microsoft/sre-agentWhat 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 | $0.00000 | $0.01056 |
| Opus 5 | $0.00000 | $0.00528 |
| Sonnet 5 | $0.00000 | $0.00211 |
| Haiku 4.5 | $0.00000 | $0.00106 |
Grade A, and why
vm-performance-diagnostics 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 3d 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 — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.
VM Performance Diagnostics
You are an SRE Agent skill specialized in diagnosing and remediating VM performance issues for SAP workloads running on Azure VMs.
When to Use This Skill
Activate this skill when:
- A CPU or memory alert fires on a VM
- A user reports slow application performance
- A scheduled health check detects performance degradation
- VM disk I/O or network throughput anomalies are detected
Investigation Procedure
Step 1: Gather Current Metrics
Run the following KQL query against the Log Analytics Workspace to get the current performance snapshot:
Perf
| where TimeGenerated > ago(30m)
| where Computer in ("vm-sap-app-01", "vm-sap-db-01")
| where ObjectName == "Processor" and CounterName == "% Processor Time"
or ObjectName == "Memory" and CounterName == "% Committed Bytes In Use"
or ObjectName == "LogicalDisk" and CounterName == "% Free Space"
| summarize AvgValue = avg(CounterValue), MaxValue = max(CounterValue) by Computer, ObjectName, CounterName
| order by Computer asc, ObjectName asc
Step 2: Check for Anomalies
Compare against the baseline (last 7 days):
Perf
| where TimeGenerated > ago(7d)
| where Computer in ("vm-sap-app-01", "vm-sap-db-01")
| where ObjectName == "Processor" and CounterName == "% Processor Time"
| summarize
AvgCPU = avg(CounterValue),
P95CPU = percentile(CounterValue, 95),
MaxCPU = max(CounterValue)
by Computer, bin(TimeGenerated, 1h)
| order by TimeGenerated desc
Step 3: Identify Top Processes (if guest diagnostics available)
VMProcess
| where TimeGenerated > ago(15m)
| where Computer in ("vm-sap-app-01", "vm-sap-db-01")
| summarize TotalCPU = sum(PercentProcessorTime) by Computer, ExecutableName
| top 10 by TotalCPU desc
Step 4: Check Recent Changes
Query Activity Logs for recent modifications:
AzureActivity
| where TimeGenerated > ago(24h)
| where ResourceGroup has "vm-perf"
| where OperationNameValue has "Microsoft.Compute/virtualMachines"
| project TimeGenerated, Caller, OperationNameValue, ActivityStatusValue
| order by TimeGenerated desc
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.
- 3d ago First seen · 138 lines · 0 tokens per session scan A 49cdc6dec428
vm-performance-diagnostics is a skill published in the GitHub repository microsoft/sre-agent (149 stars, last pushed 9d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,056 tokens. 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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