Kql
microsoft/fabric-rti-mcp
KQL language expertise for writing correct, efficient Kusto queries using the Fabric RTI MCP tools.
ANALYSIS SKILL — Query and analyze data in Azure Data Explorer (Kusto/ADX) using KQL.
$ npx skills add jonathan-vella/apex --skill apex-azure-kusto -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jonathan-vella/apex apex-azure-kusto --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/apex-azure-kusto .claude/skills/apex-azure-kusto && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "apex-azure-kusto" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-azure-kusto into .claude/skills/apex-azure-kusto/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-azure-kusto", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-azure-kustoType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add jonathan-vella/apex --skill apex-azure-kusto -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jonathan-vella/apex apex-azure-kusto --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.github/skills/apex-azure-kusto .agents/skills/apex-azure-kusto && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "apex-azure-kusto" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-azure-kusto into .agents/skills/apex-azure-kusto/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-azure-kusto", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jonathan-vella/apex --skill apex-azure-kusto -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jonathan-vella/apex apex-azure-kusto --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.github/skills/apex-azure-kusto .cursor/skills/apex-azure-kusto && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "apex-azure-kusto" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-azure-kusto into .cursor/skills/apex-azure-kusto/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-azure-kusto", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/jonathan-vella/apex.git --path .github/skills/apex-azure-kusto--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add jonathan-vella/apex --skill apex-azure-kusto -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jonathan-vella/apex apex-azure-kusto --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.github/skills/apex-azure-kusto .gemini/skills/apex-azure-kusto && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "apex-azure-kusto" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-azure-kusto into .gemini/skills/apex-azure-kusto/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-azure-kusto", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install jonathan-vella/apex apex-azure-kustoInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add jonathan-vella/apex --skill apex-azure-kusto -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .github/skills && cp -r skills-src/.github/skills/apex-azure-kusto .github/skills/apex-azure-kusto && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "apex-azure-kusto" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-azure-kusto into .github/skills/apex-azure-kusto/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-azure-kusto", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jonathan-vella/apex --skill apex-azure-kusto -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jonathan-vella/apex apex-azure-kusto --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.github/skills/apex-azure-kusto .opencode/skills/apex-azure-kusto && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "apex-azure-kusto" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-azure-kusto into .opencode/skills/apex-azure-kusto/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-azure-kusto", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
apex-azure-kustoANALYSIS SKILL — Query and analyze data in Azure Data Explorer (Kusto/ADX) using KQL.
Apex Azure Kusto is an agent skill from jonathan-vella/apex. ANALYSIS SKILL — Query and analyze data in Azure Data Explorer (Kusto/ADX) using KQL. WHEN: "KQL queries", "Kusto database queries", "Azure Data Explorer", "ADX clusters", "time series data", "IoT telemetry", "anomaly detection". DO NOT USE FOR: App Insights / Log Analytics troubleshooting (apex-azure-diagnostics), cost analysis (apex-azure-cost-optimization).
Its SKILL.md is about 980 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `references/common-issues.md`, `references/fallback-strategy.md` and `references/query-patterns.md`).
It sits in Data & Analytics, covering Forecasting and time series, Data analysis and Anomaly detection. It works with Microsoft Azure, Microsoft Sentinel and Model Context Protocol. The repository describes itself as: APEX turns Azure platform engineering requirements into verified, deploy-ready IaC — powered by GitHub Copilot agents, real-time pricing, and built-in compliance. The licence is MIT.
4 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit b8e5908. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Shell commands in SKILL.md call:
azFrom the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md. Its commands use az, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Apex Azure Kusto loads about 984 tokens when it runs, and up to ~2.6k if it reads all its reference files. Until then it costs about 96 tokens; SKILL.md has 298 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from jonathan-vella/apex at commit b8e5908, republished under its MIT licence (© jonathan-vella). 298 words, ~984 tokens.
.claude/skills/apex-azure-kusto/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.Execute KQL queries against Azure Data Explorer for fast, scalable big-data analytics on log, telemetry, and time-series data.
az login) with a subscription containing Kusto resourcesAllDatabasesViewer on the cluster, or Database Viewer per database.vscode/mcp.json for the mcp_azure-mcp_kusto
namespace; CLI fallback in
references/fallback-strategy.mdkusto_table_schema_get for table structurekusto_query with a KQL expression| Pattern | Use For |
|---|---|
| Basic Data Retrieval | Quick inspection, recent events |
| Aggregation Analysis | Counting, distribution, top-N |
| Time Series Analytics | Performance monitoring, trends |
| Join and Correlation | Root-cause analysis, event tracing |
| Schema Discovery | Data model exploration |
For full KQL syntax, examples, best practices, and performance tips, read
references/query-patterns.md.
take/limit for exploratory querieswhere before join / summarize)summarize for aggregations; bin() for time bucketingproject to select only needed columnsThese names are capability hints, not proof of installation. Inspect available tools and their current schemas before use; do not invent a missing tool or silently substitute ARG/Monitor for ADX execution.
| Tool | Purpose |
|---|---|
kusto_cluster_list | List Kusto clusters in a subscription |
kusto_database_list | List databases in a cluster |
kusto_query | Execute KQL against a database |
kusto_table_schema_get | Retrieve table schema |
Required parameters: subscription, cluster, database, query (or table).
Optional: resource-group, tenant.
For CLI fallback (timeouts, auth failures), read
references/fallback-strategy.md. For access, timeout, empty-result and
ingestion problems, read references/common-issues.md.
| Reference | When to Load |
|---|---|
references/query-patterns.md | KQL patterns, examples, best practices, common functions |
references/fallback-strategy.md | CLI commands and REST API fallback when MCP tools fail |
references/common-issues.md | Access, timeout, syntax, empty-result and ingestion issues |
© jonathan-vella, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 3 other files (references) in .github/skills/apex-azure-kusto of jonathan-vella/apex.
Open the folder on GitHubat commit b8e5908
Apex Azure Kusto next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Apex Azure Kusto this skilljonathan-vella/apex | 217 | — | ~984 | Automated safety check: Pass | MIT | |
| Kqlmicrosoft/fabric-rti-mcp | 131 | — | ~6.2k | Automated safety check: Pass | MIT | |
| Azure Kustomicrosoft/GitHub-Copilot-for-Azure | 255 | 1 repos | ~2.1k | Automated safety check: Pass | MIT | |
| Kqlmicrosoft/skills | 3.1k | — | ~4.7k | Automated safety check: Pass | MIT | |
| Kql Query AuthoringSCStelz/security-investigator | 249 | — | ~5.7k | Automated safety check: Pass | MIT | |
| Azure AI Anomalydetector Javamicrosoft/skills | 3.1k | 5 repos | ~2.3k | Automated safety check: Pass | MIT |
microsoft/fabric-rti-mcp
KQL language expertise for writing correct, efficient Kusto queries using the Fabric RTI MCP tools.
microsoft/GitHub-Copilot-for-Azure
Query and analyze data in Azure Data Explorer (Kusto/ADX) using KQL for log analytics, telemetry, and time series analysis.
microsoft/skills
KQL language expertise for writing correct, efficient Kusto Query Language queries.
SCStelz/security-investigator
A skill your agent uses when asked to write, create, or help with KQL (Kusto Query Language) queries for Microsoft Sentinel, Defender XDR, or Azure Data Explorer.
microsoft/skills
Build anomaly detection applications with Azure AI Anomaly Detector SDK for Java.
mukul975/Anthropic-Cybersecurity-Skills
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jonathan-vella/apex
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UTILITY SKILL — Two-mode context-window management. An agent skill from jonathan-vella/apex.
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UTILITY SKILL — Python diagram generation for Azure architectures, WAF/cost/compliance charts, ERDs, swimlanes, timelines, and wireframes.
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jonathan-vella/apex
ANALYSIS SKILL — Manual-only audit of Anthropic Claude Opus 5.5 / Sonnet 5.5 and OpenAI GPT-6 / GPT-5.6 prompting guidance and APEX conventions.
Categories
ANALYSIS SKILL — Query and analyze data in Azure Data Explorer (Kusto/ADX) using KQL. Apex Azure Kusto is an agent skill from jonathan-vella/apex. ANALYSIS SKILL — Query and analyze data in Azure Data Explorer (Kusto/ADX) using KQL.
Apex Azure Kusto fits situations like: : App Insights / Log Analytics troubleshooting (apex-azure-diagnostics); cost analysis (apex-azure-cost-optimization).
Run `npx skills add jonathan-vella/apex --skill apex-azure-kusto -a claude-code`. Or copy the skill folder (.github/skills/apex-azure-kusto in jonathan-vella/apex) into .claude/skills/apex-azure-kusto in your project. Claude Code loads it when a task matches its description.
Run `npx skills add jonathan-vella/apex --skill apex-azure-kusto -a codex`. Or copy the skill folder (.github/skills/apex-azure-kusto in jonathan-vella/apex) into .agents/skills/apex-azure-kusto in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jonathan-vella/apex --skill apex-azure-kusto -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/apex-azure-kusto, .gemini/skills/apex-azure-kusto, .github/skills/apex-azure-kusto and .opencode/skills/apex-azure-kusto in your project.
Going by SKILL.md and its folder, Apex Azure Kusto needs the command-line tools its instructions call (az).
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Apex Azure Kusto is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
About 984 tokens (SKILL.md is roughly 3.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.6k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Apex Azure Kusto: Kql (microsoft/fabric-rti-mcp, 131 stars), Azure Kusto (microsoft/GitHub-Copilot-for-Azure, 255 stars), Kql (microsoft/skills, 3.1k stars) and Kql Query Authoring (SCStelz/security-investigator, 249 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
jonathan-vella (a GitHub user) maintains it in jonathan-vella/apex, which has 217 GitHub stars. The repository holds 39 skills in this directory. The repository was last updated on October 10, 2026.
Source: jonathan-vella/apex on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.