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 UnboundCompute/security-agent-skills --skill auditing-namespace-as-tenant-boundarygit clone --depth 1 https://github.com/UnboundCompute/security-agent-skillsWrote 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/unboundcompute/security-agent-skills/auditing-namespace-as-tenant-boundary)<a href="https://agentmods.dev/skills/unboundcompute/security-agent-skills/auditing-namespace-as-tenant-boundary"><img src="https://agentmods.dev/badge/skills/unboundcompute/security-agent-skills/auditing-namespace-as-tenant-boundary/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/unboundcompute/security-agent-skills/auditing-namespace-as-tenant-boundary"><img src="https://agentmods.dev/badge/skills/unboundcompute/security-agent-skills/auditing-namespace-as-tenant-boundary.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 | $0.00162 | $0.01979 |
| Opus 5 | $0.00081 | $0.00989 |
| Sonnet 5 | $0.00032 | $0.00396 |
| Haiku 4.5 | $0.00016 | $0.00198 |
Grade A, and why
auditing-namespace-as-tenant-boundary 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.
How it starts
The opening of the file, as written. The whole thing — 137 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Auditing the namespace as a tenant boundary: what a namespace does not isolate
A namespace is a name-scoping and policy-attachment unit, not a security sandbox, yet multi-tenant clusters routinely hand each tenant a namespace and assume it contains them. It does not, on its own. Nodes are shared, so a tenant that can influence scheduling or escape a container reaches another tenant's pods on the same node. Cluster-scoped resources, custom resource definitions, node objects, persistent volumes, and cluster roles sit outside every namespace and are visible or reachable across them. RBAC that grants a verb at cluster scope, or on another namespace, punches straight through the boundary. Without network policy, pods cross namespaces freely. And the shared cluster services every tenant depends on, DNS, ingress, admission, storage classes, see or serve all tenants at once. The audit question is not whether tenants have separate namespaces but whether the namespace actually stops one from affecting or observing another. You audit this by testing each isolation the boundary is assumed to provide.
When to use
- A namespace is the unit of tenant separation and is assumed to isolate one tenant from another.
- Tenants share nodes, cluster-scoped resources, and cluster services (DNS, ingress, admission, storage).
- RBAC, network policy, or resource quotas may not fully confine a tenant to its own namespace.
Scope check
Audit tenant isolation only on clusters you own or are authorized to assess, on non-production tenants. Testing cross-tenant reach touches other namespaces' resources, so use non-production tenants and do not read or alter another tenant's real data. If you can't name the authorization, stop.
The loop
- Establish what the boundary must isolate first. Name what one tenant must not be able to do to another: read its resources, reach its pods, exhaust shared capacity, observe its traffic. This is the false-positive killer: a namespace backed by tenant-scoped RBAC, a default-deny network policy, resource quotas, and no cross-namespace or cluster-scoped grants is enforcing the boundary. Name the required isolations, then test each.
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 · 137 lines · 162 tokens per session scan A 400ff8066af6
auditing-namespace-as-tenant-boundary is a skill published in the GitHub repository UnboundCompute/security-agent-skills (5 stars, last pushed 3d ago), licensed MIT. It adds 162 tokens to every session and 1,979 once invoked, about $0.0008 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.
Other skills, from other repositories
cloud-security-engineer
Cloud Security Engineer role bundle for cloud security posture management, IaC review, container security, and identity governance across AWS, Azure, and GCP. Orchestrates cloud-specific posture reviews and zero trust program assessments. Auto-invoked when the user needs help with cloud security configuration, IaC…
container-security
Performs a container and Kubernetes security review against the CIS Docker Benchmark v1.6.0, CIS Kubernetes Benchmark v1.9.0, and NIST SP 800-190. Auto-invoked when reviewing Dockerfiles, Kubernetes manifests, Helm charts, or container orchestration configurations. Evaluates image security, runtime hardening, RBAC…
sandbox-guard
Generate Docker sandbox configurations for safely running untrusted OpenClaw skills. Isolates filesystem, network, and process access.
prodcheck-review
Review this codebase against the prodcheck pre-production checklists — security, performance, scale, integrations and post-launch readiness. Use when asked to check whether a project is ready to ship, to audit an area before launch, or to work through a specific checklist. Produces evidence with file:line citations…
dockerfile-scan
Scan a Dockerfile for insecure build patterns — running as root, unpinned or :latest base images, ADD from remote URLs, piping curl/wget into a shell, hardcoded secrets in ENV/ARG, world-writable chmod 777, and sudo usage. Use when the user asks to "review my Dockerfile", "is this container image secure", "lint my…
analyzing-kubernetes-audit-logs
Parses Kubernetes API server audit logs (JSON lines) to detect exec-into-pod, secret access, RBAC modifications, privileged pod creation, and anonymous API access. Builds threat detection rules from audit event patterns. Use when investigating Kubernetes cluster compromise or building k8s-specific SIEM detection rules.