Agent skill

Performing Cloud Native Forensics With Falco

by mukul975 in mukul975/Anthropic-Cybersecurity-Skills

Uses Falco YAML rules for runtime threat detection in containers and Kubernetes, monitoring syscalls for shell spawns, file tampering, network anomalies, and privilege escalation.

Apache-2.0Auto-check passedSecurity

Install Performing Cloud Native Forensics With Falco

skills CLI
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-cloud-native-forensics-with-falco -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills performing-cloud-native-forensics-with-falco --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/performing-cloud-native-forensics-with-falco .claude/skills/performing-cloud-native-forensics-with-falco && rm -rf skills-src

Use ~/.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/

Facts

Skill name
performing-cloud-native-forensics-with-falco
GitHub stars
34k
Token cost
~635 tokens
SKILL.md length
128 words
Files
4 (incl. scripts, references)
Skills in repo
644
Repo updated
First seen
Licence
Apache-2.0

At a glance

Uses Falco YAML rules for runtime threat detection in containers and Kubernetes, monitoring syscalls for shell spawns, file tampering, network anomalies, and privilege escalation.

  • Works in 5 steps: Shell spawn in non-interactive containers → Sensitive file access (/etc/shadow,… → Outbound connections from unexpected… → …
  • Building container runtime security
  • SKILL.md covers When to Use, Prerequisites, Instructions and Examples
  • Runs Python scripts from its folder; calls python3

What it does

Performing Cloud Native Forensics With Falco is an agent skill from mukul975/Anthropic-Cybersecurity-Skills. Uses Falco YAML rules for runtime threat detection in containers and Kubernetes, monitoring syscalls for shell spawns, file tampering, network anomalies, and privilege escalation. Manages Falco rules via the Falco gRPC API and parses Falco alert output. Use when building container runtime security or investigating k8s cluster compromises.

Its SKILL.md is about 640 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including scripts and reference files (for example `references/api-reference.md` and `scripts/agent.py`).

It sits in Security, covering Container orchestration, Red teaming and adversary simulation and gRPC and Protobuf. It works with Kubernetes and gRPC. The repository describes itself as: 817 structured cybersecurity skills for AI agents · Mapped to 6 frameworks: MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND, NIST AI RMF & MITRE F3 (Fight Fraud) · agentskills.io…. The licence is Apache-2.0.

When your agent uses it

  • Building container runtime security
  • Investigating k8s cluster compromises

Example prompts

  • “Use the performing-cloud-native-forensics-with-falco skill to use Falco YAML rules for runtime threat detection in containers and Kubernetes…”
  • “/performing-cloud-native-forensics-with-falco”

Requirements

  • Python 3
  • Docker

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Shell spawn in non-interactive containers
  2. Sensitive file access (/etc/shadow, /etc/passwd)
  3. Outbound connections from unexpected containers
  4. Privilege escalation via setuid/setgid
  5. Container escape via mount or ptrace

What it can do on your machine

Read from SKILL.md and the folder at commit 54a7988. It shows what the files ask for, not the result of running them.

  • Tool permissions

    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.

  • Runs code

    Ships 1 file in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python3

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Performing Cloud Native Forensics With Falco loads about 635 tokens when it runs, and up to ~1k if it reads all its reference files. Until then it costs about 96 tokens; SKILL.md has 128 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~96
When it runs · the whole SKILL.md, loaded when a task matches
~635
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1k

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.

Safety

Auto-check passed

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); the scripts in this folder are not scanned.

SKILL.md

The full file from mukul975/Anthropic-Cybersecurity-Skills at commit 54a7988, republished under its Apache-2.0 licence (© mukul975). 128 words, ~635 tokens.

Download SKILL.mdSave it as .claude/skills/performing-cloud-native-forensics-with-falco/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
performing-cloud-native-forensics-with-falco
description
Uses Falco YAML rules for runtime threat detection in containers and Kubernetes, monitoring syscalls for shell spawns, file tampering, network anomalies, and privilege escalation. Manages Falco rules via the Falco gRPC API and parses Falco alert output. Use when building container runtime security or investigating k8s cluster compromises.
domain
cybersecurity
subdomain
cloud-security
tags
cloud-security, falco, runtime-threat-detection, container-forensics, kubernetes-security, syscall-monitoring
version
1.0
author
mahipal
license
Apache-2.0
nist_csf
PR.IR-01, ID.AM-08, GV.SC-06, DE.CM-01
mitre_attack
T1078.004, T1530, T1537, T1580, T1068

Performing Cloud Native Forensics with Falco

When to Use

  • When conducting security assessments that involve performing cloud native forensics with falco
  • When following incident response procedures for related security events
  • When performing scheduled security testing or auditing activities
  • When validating security controls through hands-on testing

Prerequisites

  • Familiarity with cloud security concepts and tools
  • Access to a test or lab environment for safe execution
  • Python 3.8+ with required dependencies installed
  • Appropriate authorization for any testing activities

Instructions

Deploy and manage Falco rules for runtime security detection in containerized environments. Parse Falco alerts for incident response.

yaml
# Custom Falco rule for detecting shell in container
- rule: Shell Spawned in Container
  desc: Detect shell process started in a container
  condition: >
    spawned_process and container
    and proc.name in (bash, sh, zsh, dash, csh)
    and not proc.pname in (docker-entrypo, supervisord)
  output: >
    Shell spawned in container
    (user=%user.name command=%proc.cmdline container=%container.name
     image=%container.image.repository)
  priority: WARNING
  tags: [container, shell, mitre_execution]

Key detection rules:

  1. Shell spawn in non-interactive containers
  2. Sensitive file access (/etc/shadow, /etc/passwd)
  3. Outbound connections from unexpected containers
  4. Privilege escalation via setuid/setgid
  5. Container escape via mount or ptrace

Examples

bash
# Run Falco with custom rules
falco -r /etc/falco/custom_rules.yaml -o json_output=true
# Parse JSON alerts
cat /var/log/falco/alerts.json | python3 -c "import json,sys; [print(json.loads(l)['output']) for l in sys.stdin]"

© mukul975, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (scripts, references) in skills/performing-cloud-native-forensics-with-falco of mukul975/Anthropic-Cybersecurity-Skills.

  • SKILL.md
  • LICENSE
  • references/api-reference.md
  • scripts/agent.py

Open the folder on GitHubat commit 54a7988

Compare with similar skills

Performing Cloud Native Forensics With Falco 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.

Performing Cloud Native Forensics With Falco compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Performing Cloud Native Forensics With Falco this skillmukul975/Anthropic-Cybersecurity-Skills34k—~635Automated safety check: PassApache-2.0
Intrinsic Core Debuggingintrinsic-ai/intrinsic-core557—~3.8kAutomated safety check: NotesApache-2.0
Intrinsic Core API Overviewintrinsic-ai/intrinsic-core557—~3.4kAutomated safety check: PassApache-2.0
Intrinsic Core Service Authoringintrinsic-ai/intrinsic-core557—~2.2kAutomated safety check: PassApache-2.0
Kubeshark KFL2 Filter Referencekubeshark/kubeshark12k—~3.6kAutomated safety check: PassApache-2.0
Kratos Developmentaide-family/moon253—~1.5kAutomated safety check: PassNone

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Works with

Questions about Performing Cloud Native Forensics With Falco

What does Performing Cloud Native Forensics With Falco do?

Uses Falco YAML rules for runtime threat detection in containers and Kubernetes, monitoring syscalls for shell spawns, file tampering, network anomalies, and privilege escalation. Performing Cloud Native Forensics With Falco is an agent skill from mukul975/Anthropic-Cybersecurity-Skills. Uses Falco YAML rules for runtime threat detection in containers and Kubernetes, monitoring syscalls for shell spawns, file tampering, network anomalies, and privilege escalation.

When should I use Performing Cloud Native Forensics With Falco?

Performing Cloud Native Forensics With Falco fits situations like: building container runtime security; investigating k8s cluster compromises.

How do I install Performing Cloud Native Forensics With Falco in Claude Code?

Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-cloud-native-forensics-with-falco -a claude-code`. Or copy the skill folder (skills/performing-cloud-native-forensics-with-falco in mukul975/Anthropic-Cybersecurity-Skills) into .claude/skills/performing-cloud-native-forensics-with-falco in your project. Claude Code loads it when a task matches its description.

How do I install Performing Cloud Native Forensics With Falco in Codex?

Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-cloud-native-forensics-with-falco -a codex`. Or copy the skill folder (skills/performing-cloud-native-forensics-with-falco in mukul975/Anthropic-Cybersecurity-Skills) into .agents/skills/performing-cloud-native-forensics-with-falco in your project. Codex loads it when a task matches its description.

Can I use Performing Cloud Native Forensics With Falco in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-cloud-native-forensics-with-falco -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/performing-cloud-native-forensics-with-falco, .gemini/skills/performing-cloud-native-forensics-with-falco, .github/skills/performing-cloud-native-forensics-with-falco and .opencode/skills/performing-cloud-native-forensics-with-falco in your project.

What does Performing Cloud Native Forensics With Falco need to run?

Going by SKILL.md and its folder, Performing Cloud Native Forensics With Falco needs Python for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3; Docker.

Does Performing Cloud Native Forensics With Falco access the network?

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.

Is Performing Cloud Native Forensics With Falco safe to install?

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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Performing Cloud Native Forensics With Falco use?

Performing Cloud Native Forensics With Falco is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Performing Cloud Native Forensics With Falco use?

About 635 tokens (SKILL.md is roughly 2.5k 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 388 tokens, read only when the agent opens those files.

What are the alternatives to Performing Cloud Native Forensics With Falco?

Skills that share tags, products or a category with Performing Cloud Native Forensics With Falco: Intrinsic Core Debugging (intrinsic-ai/intrinsic-core, 557 stars), Intrinsic Core API Overview (intrinsic-ai/intrinsic-core, 557 stars), Intrinsic Core Service Authoring (intrinsic-ai/intrinsic-core, 557 stars) and Kubeshark KFL2 Filter Reference (kubeshark/kubeshark, 12k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Performing Cloud Native Forensics With Falco?

mukul975 (a GitHub user) maintains it in mukul975/Anthropic-Cybersecurity-Skills, which has 33,993 GitHub stars. The repository holds 644 skills in this directory. The repository was last updated on August 31, 2026.

Source: mukul975/Anthropic-Cybersecurity-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.