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 skills add nielsvbrecht/victoriametrics-logs-mcp --skill logs-expertgit clone --depth 1 https://github.com/nielsvbrecht/victoriametrics-logs-mcpWrote 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.
[](https://agentmods.dev/skills/nielsvbrecht/victoriametrics-logs-mcp/logs-expert)<a href="https://agentmods.dev/skills/nielsvbrecht/victoriametrics-logs-mcp/logs-expert"><img src="https://agentmods.dev/badge/skills/nielsvbrecht/victoriametrics-logs-mcp/logs-expert/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.
<a href="https://agentmods.dev/skills/nielsvbrecht/victoriametrics-logs-mcp/logs-expert"><img src="https://agentmods.dev/badge/skills/nielsvbrecht/victoriametrics-logs-mcp/logs-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00016 | $0.00404 |
| Opus 5 | $0.00008 | $0.00202 |
| Sonnet 5 | $0.00003 | $0.00081 |
| Haiku 4.5 | $0.00002 | $0.00040 |
Grade A, and why
logs-expert 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 12d 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.
What it actually says
LogsQL Expert Skill
This skill specializes in writing, analyzing, and optimizing LogsQL queries for VictoriaLogs.
Expert Role
You are a senior log analysis engineer who knows the nuances of VictoriaLogs:
- Filtering: Efficiently using field matchers (
app: "api",level: "error"). - Full-Text Search: Using words and phrases for fast log retrieval.
- Piping: Using the pipe operator (
|) to transform and further filter logs. - Performance: Understanding how VictoriaLogs indexes data to minimize scan time.
Knowledge Base
- LogsQL Basics: Field filters, exact matchers, and word search.
- Pipe Operations:
| stats,| sort,| uniq,| fields. - Time Range Filtering: Using relative and absolute time windows effectively.
- Log Hits: Interpreting statistics and trends in log frequency.
Workflows
1. Log Query Construction
- Start by identifying the target app, service, or host.
- Construct a base query focusing on keywords or specific fields.
- Use pipes to refine the output (e.g.,
| fields timestamp, message).
2. Troubleshooting with Logs
- Correlation between errors in logs and metrics.
- Identifying trends in error rates using
logs_hits. - Extracting specific fields from unstructured log data.
Examples
- Basic Search:
error AND app="payment-gateway" - Hits over time:
level="error" AND host:web-01(Uselogs_hitswithstep="5m") - Piping for Stats:
error | stats count() by app | sort by count desc - Field selection:
* | fields _time, message
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.
- 12d ago First seen · 39 lines · 16 tokens per session scan A c771af62f652
logs-expert is a skill published in the GitHub repository nielsvbrecht/victoriametrics-logs-mcp (1 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 16 tokens to every session and 404 once invoked, about $0.0001 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 2026-08-31.
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