container-and-runtime-security

container-and-runtime-security is a skill for Claude Code, Codex from Samurai-goose/SPECTER-The-Illusive-Security-Protocol. It costs 33 tokens per session (1,775 once invoked), scanned B, original, MIT.

A security assessment of containers and the systems that run them, including Docker, Kubernetes, and similar platforms. It looks at whether a compromised container could reach the host, other workloads, or protected services.

In plain words
What is it for?
It helps assess container escape paths, kernel and capability risks, namespace isolation, orchestration settings, and whether identified runtime misconfigurations are actually exploitable.
Why use it?
It checks practical runtime risks that a review of configuration files may miss, such as excessive permissions, namespace breakouts, and service-mesh bypasses.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It helps assess container escape paths, kernel and capability risks, namespace isolation, orchestration settings, and whether identified runtime misconfigurations are actually exploitable.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/samurai-goose/specter-the-illusive-security-protocol/container-and-runtime-security
Install

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.

Any agent
npx skills add Samurai-goose/SPECTER-The-Illusive-Security-Protocol --skill container-and-runtime-security
Clone the repo
git clone --depth 1 https://github.com/Samurai-goose/SPECTER-The-Illusive-Security-Protocol

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for container-and-runtime-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/samurai-goose/specter-the-illusive-security-protocol/container-and-runtime-security/github.svg)](https://agentmods.dev/skills/samurai-goose/specter-the-illusive-security-protocol/container-and-runtime-security)
Your own site
<a href="https://agentmods.dev/skills/samurai-goose/specter-the-illusive-security-protocol/container-and-runtime-security"><img src="https://agentmods.dev/badge/skills/samurai-goose/specter-the-illusive-security-protocol/container-and-runtime-security/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.

agentmods 80×15 button for container-and-runtime-security

Your own site · 80×15
<a href="https://agentmods.dev/skills/samurai-goose/specter-the-illusive-security-protocol/container-and-runtime-security"><img src="https://agentmods.dev/badge/skills/samurai-goose/specter-the-illusive-security-protocol/container-and-runtime-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,775 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 3 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00033 $0.01775
Opus 5 $0.00016 $0.00888
Sonnet 5 $0.00007 $0.00355
Haiku 4.5 $0.00003 $0.00178

Measured 10d ago against content hash a36c5495630b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

container-and-runtime-security scanned grade B with 3 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 10d 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.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- Run as root? Check `USER` directive enforcement

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Cloud metadata endpointmediumServer-side request forgery

One request to 169.254.169.254 can return temporary IAM credentials.

- Can container reach cloud metadata endpoint (169.254.169.254)?

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Leftover build tools (gcc, wget, curl, nc) enabling exploitation?
container-and-runtime-security/SKILL.md · 183 lines

How it starts

The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Container & Runtime Security

Purpose

Assess container runtime security beyond static configuration. While cloud-config-audit reviews IaC and Kubernetes manifests, this skill focuses on runtime exploitability: container escape paths, kernel vulnerabilities, capability abuse, namespace breakouts, service mesh bypass, and orchestration runtime issues. Validates whether misconfigurations are actually exploitable at runtime.

Triggers

  • Containerized workloads in authorized scope
  • Cloud-config-audit identifies container misconfigurations needing runtime validation
  • User requests container escape or runtime assessment
  • Kubernetes cluster authorized for active testing
  • Container image needs runtime security evaluation

Required Inputs

Input Description Required
governance_context Active engagement governance record Yes
target Container, pod, cluster, or container image Yes
access_level Current access (shell in container, K8s API access, etc.) Yes
runtime Docker, containerd, CRI-O, Podman Recommended
orchestrator Kubernetes, ECS, Docker Swarm, Nomad Recommended

Workflow

  1. Scope Verification — Confirm container environment is within authorized scope. Verify blast radius constraints.

  2. Container Escape Path Analysis

    Path Condition Test
    Privileged container --privileged or privileged: true Mount host filesystem, access host devices
    Dangerous capabilities SYS_ADMIN, SYS_PTRACE, DAC_READ_SEARCH, NET_ADMIN Capability-specific escape techniques
    Host PID namespace hostPID: true Access host processes, /proc manipulation
    Host network namespace hostNetwork: true Sniff host traffic, access host-bound services
    Host IPC namespace hostIPC: true Shared memory access, IPC exploitation
    Docker socket mount /var/run/docker.sock mounted Full host control via Docker API
    Host path mounts Sensitive host paths mounted (/, /etc, /var) Read/write host filesystem
    Kernel exploits Unpatched kernel, known CVEs Privilege escalation to host
    cgroup escape Writable cgroup filesystem (CVE-2022-0492 pattern) Escape via release_agent
    runc vulnerabilities Outdated runc version CVE-2019-5736 (runc overwrite) pattern
    eBPF abuse SYS_ADMIN or BPF capability Kernel-level visibility and manipulation

Read the full file on GitHub · 183 lines

Changes

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.

  1. 10d ago First seen · 183 lines · 33 tokens per session scan B a36c5495630b

Subscribe to this mod's changes

container-and-runtime-security is a skill published in the GitHub repository Samurai-goose/SPECTER-The-Illusive-Security-Protocol (2 stars, last pushed 2mo ago), licensed MIT. It adds 33 tokens to every session and 1,775 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 3 findings (asks for root, cloud metadata endpoint, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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