Borrowing it
Nothing to install: this file belongs to xiaods/k8e. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/xiaods/k8e/main/AGENTS.mdgit clone --depth 1 https://github.com/xiaods/k8eWrote 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/instructions/xiaods/k8e/agents-md)<a href="https://agentmods.dev/instructions/xiaods/k8e/agents-md"><img src="https://agentmods.dev/badge/instructions/xiaods/k8e/agents-md/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/instructions/xiaods/k8e/agents-md"><img src="https://agentmods.dev/badge/instructions/xiaods/k8e/agents-md.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 | $0.02427 | $0.02427 |
| Opus 5.5 | $0.00971 | $0.00971 |
| Sonnet 5.5 | $0.00485 | $0.00485 |
| Haiku 4.5 | $0.00243 | $0.00243 |
Grade A, and why
k8e AGENTS.md 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 20d 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 — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Guidance for AI coding agents (Claude Code, Codex, and others) working in this repository.
Claude Code reads this file directly — there is no separate
CLAUDE.md. KeepAGENTS.mdas the single source of agent guidance.
What this is
K8E is a CNCF-conformant Kubernetes distribution packaged as a single k8e
binary under 100MB. Kubernetes is the substrate; the product on top of it is a
sandbox matrix for isolated AI-agent execution:
- warm-pooled sandbox Pods — RuntimeClass
gvisor(default),kata,firecracker - a gRPC
SandboxService(34 RPCs) behindsandbox-grpc-gateway:50051with mTLS k8e-sandbox-cli— the CLI an agent drives from a shell (30 top-level commands)- an E2B-compatible HTTP surface, an MCP adapter, and skills/plugins for Claude Code, Codex, Pi and DeepSeek Harness (dsh)
There is no k8e sandbox command group. The k8e binary carries only
k8e sandbox-apikey and k8e e2b-server; every session/exec/file command lives
in k8e-sandbox-cli.
Where things live
The build is a Zig build graph (build.zig) driving Go compilation;
Makefile is a thin wrapper over the common zig build steps.
.
├── build.zig / Makefile # build graph / `make` wrappers
├── main.go # CLI entry; holds the //go:generate directives
├── cmd/ # one package per binary entry point
│ ├── server/ # → bin/k8e (control plane + agent, no bundled runtimes)
│ ├── k8e/ # release multicall binary (hack/package-cli)
│ ├── sandboxcli/ # → k8e-sandbox-cli, the agent-facing CLI
│ ├── agent/ kubectl/ cert/ ctr/ encrypt/ etcdsnapshot/ token/ …
├── pkg/
│ ├── cli/cmds/ # flag + command wiring (server.go, agent.go, e2b_server.go)
│ ├── server/ agent/ daemons/
│ ├── sandboxmatrix/ # the core: warm-pool + session reconciliation,
│ │ # leader.go (Lease), ratelimit/, api/v1alpha1 CRDs,
│ │ # grpc/ (SandboxService impl + orchestrator + pb/)
│ ├── sandboxcli/ # the 30 top-level commands + skills/k8e-sandbox/SKILL.md
│ ├── sandbox/ # client/ (gRPC + TLS discovery), apikey/, e2b/
│ ├── sandboxmcp/ # MCP HTTP adapter (`mcp-serve`)
│ ├── sandboxlayer/ # CAS snapshot layerstore
│ ├── configfilearg/ # maps config-file keys onto flags
│ ├── deploy/ embedw/
│ └── … # apis, bootstrap, token, certmonitor, cgroups
├── proto/sandbox/v1/sandbox.proto # SandboxService: 34 RPCs
├── sandboxd/ # Zig daemon running inside the sandbox Pod (:2024)
├── sandbox/ manifests/ plugins/deepseek-harness/
├── docs/ # KIPs (docs/README.md = index) + docs/agents/
├── hack/ # download / generate / package / e2e scripts
└── tests/ # unit.go helpers + mcp/*.py smoke tests
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.
- 20d ago Changed · +2 tokens per session 1fed32d491b0
- 1mo ago Changed · -54 lines · -1,056 tokens per session 59eef4870a69
- 1mo ago Changed · +104 lines · +1,790 tokens per session 4b394e3b6c01
- 2mo ago First seen · 142 lines · 1,691 tokens per session scan A 45cb3ad812af
k8e AGENTS.md is an instructions file published in the GitHub repository xiaods/k8e (514 stars, last pushed 10d ago), licensed Apache-2.0. It adds 2,427 tokens to every session, about $0.0097 per session on Opus 5.5. 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 2026-08-30.
k8e AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| k8e AGENTS.mdxiaods/k8e | Instructions file | 514 | 10d ago | Apache-2.0 | A | 2,427 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |