Generic detection rule creation and management using Sigma, the universal SIEM rule format.
$ npx skills add AgentSecOps/SecOpsAgentKit --skill detection-sigma -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install AgentSecOps/SecOpsAgentKit detection-sigma --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/AgentSecOps/SecOpsAgentKit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/incident-response/detection-sigma .claude/skills/detection-sigma && 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 "detection-sigma" agent skill from https://github.com/AgentSecOps/SecOpsAgentKit/tree/main/skills/incident-response/detection-sigma into .claude/skills/detection-sigma/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detection-sigma", 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/AgentSecOps/SecOpsAgentKit/tree/main/skills/incident-response/detection-sigmaType 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 AgentSecOps/SecOpsAgentKit --skill detection-sigma -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install AgentSecOps/SecOpsAgentKit detection-sigma --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AgentSecOps/SecOpsAgentKit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/incident-response/detection-sigma .agents/skills/detection-sigma && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "detection-sigma" agent skill from https://github.com/AgentSecOps/SecOpsAgentKit/tree/main/skills/incident-response/detection-sigma into .agents/skills/detection-sigma/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detection-sigma", 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 AgentSecOps/SecOpsAgentKit --skill detection-sigma -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install AgentSecOps/SecOpsAgentKit detection-sigma --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AgentSecOps/SecOpsAgentKit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/incident-response/detection-sigma .cursor/skills/detection-sigma && 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 "detection-sigma" agent skill from https://github.com/AgentSecOps/SecOpsAgentKit/tree/main/skills/incident-response/detection-sigma into .cursor/skills/detection-sigma/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detection-sigma", 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/AgentSecOps/SecOpsAgentKit.git --path skills/incident-response/detection-sigma--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 AgentSecOps/SecOpsAgentKit --skill detection-sigma -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install AgentSecOps/SecOpsAgentKit detection-sigma --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AgentSecOps/SecOpsAgentKit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/incident-response/detection-sigma .gemini/skills/detection-sigma && 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 "detection-sigma" agent skill from https://github.com/AgentSecOps/SecOpsAgentKit/tree/main/skills/incident-response/detection-sigma into .gemini/skills/detection-sigma/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detection-sigma", 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 AgentSecOps/SecOpsAgentKit detection-sigmaInstalls 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 AgentSecOps/SecOpsAgentKit --skill detection-sigma -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/AgentSecOps/SecOpsAgentKit.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/incident-response/detection-sigma .github/skills/detection-sigma && 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 "detection-sigma" agent skill from https://github.com/AgentSecOps/SecOpsAgentKit/tree/main/skills/incident-response/detection-sigma into .github/skills/detection-sigma/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detection-sigma", 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 AgentSecOps/SecOpsAgentKit --skill detection-sigma -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install AgentSecOps/SecOpsAgentKit detection-sigma --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AgentSecOps/SecOpsAgentKit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/incident-response/detection-sigma .opencode/skills/detection-sigma && 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 "detection-sigma" agent skill from https://github.com/AgentSecOps/SecOpsAgentKit/tree/main/skills/incident-response/detection-sigma into .opencode/skills/detection-sigma/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "detection-sigma", 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.
detection-sigmaGeneric detection rule creation and management using Sigma, the universal SIEM rule format.
Detection Sigma is an agent skill from AgentSecOps/SecOpsAgentKit. Generic detection rule creation and management using Sigma, the universal SIEM rule format. Sigma provides vendor-agnostic detection logic for log analysis across multiple SIEM platforms. Use when: (1) Creating detection rules for security monitoring, (2) Converting rules between SIEM platforms (Splunk, Elastic, QRadar, Sentinel), (3) Threat hunting with standardized detection patterns, (4) Building detection-as-code pipelines, (5) Mapping detections to MITRE ATT&CK tactics, (6) Implementing compliance-based…
Its SKILL.md is about 4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 17 other files, including reference files and assets (for example `assets/compliance-rules/iso27001-logging.yml`, `assets/compliance-rules/nist-800-53-audit.yml` and `assets/compliance-rules/pci-dss-monitoring.yml`).
It sits in Security, covering Security operations. It works with Splunk. The repository describes itself as: Security operations toolkit for AI coding agents. Give Claude Code 25+ skills to catch vulnerabilities, scan containers, detect secrets, and enforce policies automatically.
5 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 6e25a4b. 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:
pythonpipFrom the folder's file list and the shell code blocks in SKILL.md.
Hosts in commands or code, which the agent is likely to contact:
attack.mitre.orgAlso links to:
github.comsigconverter.ioFrom 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.
Detection Sigma loads about 4k tokens when it runs, and up to ~13k if it reads all its reference files. Until then it costs about 137 tokens; SKILL.md has 1,130 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.
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,130 words (~4,015 tokens).
“Sigma is to log detection what Snort is to network traffic and YARA is to files - a universal signature format for describing security-relevant log events. This skill helps create, validate, and convert Sigma rules for deployment across multiple SIEM…”
SKILL.md and 13 other files (references, assets) in skills/incident-response/detection-sigma of AgentSecOps/SecOpsAgentKit.
Open the folder on GitHubat commit 6e25a4b
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in AgentSecOps/SecOpsAgentKit, which our catalogue first saw on October 7, 2026.
Detection Sigma 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 |
|---|---|---|---|---|---|---|
| Detection Sigma this skillAgentSecOps/SecOpsAgentKit | 219 | 1 repos | ~4k | Automated safety check: Pass | Custom licence | |
| Triaging Security Incident With Ir Playbookmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~2.2k | Automated safety check: Pass | Apache-2.0 | |
| Building Soc Playbook For Ransomwaremukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~2.9k | Automated safety check: Pass | Apache-2.0 | |
| Implementing Alert Fatigue Reductionmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~3.1k | Automated safety check: Pass | Apache-2.0 | |
| Implementing Siem Use Cases For Detectionmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| Implementing Soar Automation With Phantommukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~3.6k | Automated safety check: Pass | Apache-2.0 |
mukul975/Anthropic-Cybersecurity-Skills
Classifies and prioritizes security incidents using structured IR playbooks and SIEM/case-management queries (Splunk, TheHive) to determine severity, assign response teams, and initiate the…
mukul975/Anthropic-Cybersecurity-Skills
Builds a structured SOC incident response playbook for ransomware attacks covering detection, containment, eradication, and recovery phases with specific SIEM queries, isolation procedures, and…
mukul975/Anthropic-Cybersecurity-Skills
Implements strategies to reduce SOC alert fatigue by tuning detection rules, consolidating duplicate alerts, implementing risk-based alerting, and measuring alert quality metrics to maintain analyst…
mukul975/Anthropic-Cybersecurity-Skills
Implements SIEM detection use cases by designing correlation rules, threshold alerts, and behavioral analytics mapped to MITRE ATT&CK techniques across Splunk, Elastic, and Sentinel.
mukul975/Anthropic-Cybersecurity-Skills
Implements Security Orchestration, Automation, and Response (SOAR) workflows using Splunk SOAR (formerly Phantom) to automate alert triage, IOC enrichment, containment actions, and incident response…
mukul975/Anthropic-Cybersecurity-Skills
Leverages Splunk Enterprise Security and SPL (Search Processing Language) to investigate security incidents through log correlation, timeline reconstruction, and anomaly detection.
AgentSecOps/SecOpsAgentKit
Static application security testing (SAST) using Semgrep for vulnerability detection, security code review, and secure coding guidance with OWASP and CWE framework mapping.
AgentSecOps/SecOpsAgentKit
Hardcoded secret detection and prevention in git repositories and codebases using Gitleaks.
AgentSecOps/SecOpsAgentKit
Aggregates scanner results into DefectDojo, deduplicates findings, tracks remediation SLAs and prepares compliance reports across products and pipelines.
AgentSecOps/SecOpsAgentKit
Guides authorized packet capture and analysis with TShark, Wireshark's command-line tool, for security investigations, malware detection and forensic examination of network traffic.
AgentSecOps/SecOpsAgentKit
Scans container images, filesystems and SBOMs with Grype for known vulnerabilities, ranks them by CVSS, EPSS and CISA KEV, and wires scans into CI/CD thresholds.
AgentSecOps/SecOpsAgentKit
Lints Dockerfiles with Hadolint for security misconfigurations and best-practice violations, locally and in CI, with strict, balanced and permissive rule templates.
Works with
Categories
Generic detection rule creation and management using Sigma, the universal SIEM rule format. Detection Sigma is an agent skill from AgentSecOps/SecOpsAgentKit. Generic detection rule creation and management using Sigma, the universal SIEM rule format.
Detection Sigma fits situations like: creating detection rules for security monitoring; converting rules between SIEM platforms (Splunk; threat hunting with standardized detection patterns; building detection-as-code pipelines.
Run `npx skills add AgentSecOps/SecOpsAgentKit --skill detection-sigma -a claude-code`. Or copy the skill folder (skills/incident-response/detection-sigma in AgentSecOps/SecOpsAgentKit) into .claude/skills/detection-sigma in your project. Claude Code loads it when a task matches its description.
Run `npx skills add AgentSecOps/SecOpsAgentKit --skill detection-sigma -a codex`. Or copy the skill folder (skills/incident-response/detection-sigma in AgentSecOps/SecOpsAgentKit) into .agents/skills/detection-sigma 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 AgentSecOps/SecOpsAgentKit --skill detection-sigma -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/detection-sigma, .gemini/skills/detection-sigma, .github/skills/detection-sigma and .opencode/skills/detection-sigma in your project.
Going by SKILL.md and its folder, Detection Sigma needs the command-line tools its instructions call (python and pip). Our summary lists: Python 3.
SKILL.md names 3 domains. In commands or code: attack.mitre.org; the agent is likely to contact it when it follows the instructions. As links in the text: github.com and sigconverter.io. 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.
Detection Sigma has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
About 4k tokens (SKILL.md is roughly 16k 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 9.4k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Detection Sigma: Triaging Security Incident With Ir Playbook (mukul975/Anthropic-Cybersecurity-Skills, 34k stars), Building Soc Playbook For Ransomware (mukul975/Anthropic-Cybersecurity-Skills, 34k stars), Implementing Alert Fatigue Reduction (mukul975/Anthropic-Cybersecurity-Skills, 34k stars) and Implementing Siem Use Cases For Detection (mukul975/Anthropic-Cybersecurity-Skills, 34k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
AgentSecOps (a GitHub organization) maintains it in AgentSecOps/SecOpsAgentKit, which has 219 GitHub stars. The repository holds 24 skills in this directory. The repository was last updated on April 15, 2026.
Source: AgentSecOps/SecOpsAgentKit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.
