Report · marked 25 Aug 2026

k3s-io/k3s

An agent can work here, but it will waste turns finding its footing.

Go · 33,818 stars · 665 files · branch main

68 /100 B

Instructions 2/27Whether the repo tells an agent how to behave before it starts guessing. Losing marks on agent instruction file and instruction quality.Setup 18/20Whether an agent can install the project and get it running without a human. Losing marks on environment config.Verification loop 22/22Whether an agent can check its own work. This is the category that most decides whether agent output is trustworthy. Full marks.Context economy 15/20Whether the repo fits in a context window, or fights it. Losing marks on repository weight.Navigability 10/10How quickly anything new can orient itself. Full marks.

Higher is better. Accent marks what is costing you most.

Fix these first

Agent instruction file

Add an AGENTS.md at the root: what the project is, how to install, how to run, how to test, and the two or three conventions a newcomer always gets wrong.

Instruction quality

Instructions earn their keep by naming exact commands. 'Run the tests with `pnpm test`' beats three paragraphs of philosophy.

Repository weight

Large binaries and vendored trees slow every operation an agent performs. Git LFS or a separate assets repo keeps the working tree navigable.

The full marking

Every deduction below names the file or setting it came from.

Instructions 2/27 F

Whether the repo tells an agent how to behave before it starts guessing.

✗Agent instruction file 0/12

None found. Every agent that opens this repo starts from zero.

Add an AGENTS.md at the root: what the project is, how to install, how to run, how to test, and the two or three conventions a newcomer always gets wrong.

Looked for AGENTS.md, CLAUDE.md, .github/copilot-instructions.md, .cursorrules

✗Instruction quality 0/12

Nothing to judge, since there are no instructions.

Instructions earn their keep by naming exact commands. 'Run the tests with `pnpm test`' beats three paragraphs of philosophy.

✗README as an entry point 2/3

README exists but never explains how to get the thing running.

Give the README an Install and a Usage heading with real commands under each. Agents pattern-match on those headings.

Setup 18/20 A

Whether an agent can install the project and get it running without a human.

✓Deterministic install 6/6

go.sum pins the dependency tree.

Found go.sum

✓Discoverable commands 6/6

Commands are declared where an agent will look for them.

Makefile

scripts/ directory

✗Environment config 2/4

Env vars are mentioned in the README but there's no example file to copy.

Add a .env.example listing every variable with a safe placeholder value. It's the cheapest possible fix and it unblocks the whole first run.

✓Pinned runtime version 2/2

The language runtime version is pinned.

go.mod declares a Go version

✓Reproducible environment 2/2

dockerfile gives a known-good environment.

Verification loop 22/22 A+

Whether an agent can check its own work. This is the category that most decides whether agent output is trustworthy.

✓Tests exist 8/8

242 test files against 369 source files.

e.g. cmd/k3s/main_test.go, pkg/agent/config/config_internal_test.go, pkg/agent/config/config_linux_test.go

✓Test command is discoverable 7/7

An agent can find and run `go test ./...`.

✓Continuous integration 4/4

20 GitHub Actions workflows define what "passing" means.

✓Lint and format rules 3/3

.golangci.yml encodes the house style.

–Static type checking n/a

Not applicable — the Go compiler type checks every build.

Context economy 15/20 B+

Whether the repo fits in a context window, or fights it.

✓No committed build output 6/6

No generated directories committed.

✓.gitignore hygiene 3/3

.gitignore covers 40 patterns.

✓File sizes fit in context 6/6

No source file is large enough to crowd out a context window.

✗Repository weight 0/5

About 591MB checked out. Large enough that cloning and searching are both slow.

Large binaries and vendored trees slow every operation an agent performs. Git LFS or a separate assets repo keeps the working tree navigable.

Here is your AGENTS.md

Drafted from what is actually in this repository: the install command from your lockfile, the commands you already declare, your real directory layout. Anything marked TODO needs a person. Save it at the root as AGENTS.md.

AGENTS.md — drafted for k3s-io/k3s

# AGENTS.md

Lightweight Kubernetes

## Setup

```
go mod download
```

## Commands

```
make deps
make binary-size-check
make image-scan
make format              # format
make tag-image-latest
make validate
```

## Layout

- `pkg/`       264 source files
- `tests/`     72 source files
- `cmd/`       14 source files
- `scripts/`   7 source files
- `contrib/`   5 source files
- `updatecli/` 3 source files

## Conventions

- Tests live alongside the code they cover, following `cmd/k3s/main_test.go`.
- CI defines what passing means. See `.github/workflows/actionlint.yaml`, and keep it green.
- TODO: add the two or three conventions a newcomer always gets wrong here.

---

Drafted by agentreadme.com from what is in this repository. Everything marked TODO
needs a human. Check it in as AGENTS.md at the root.

Open the raw markdown or curl -o AGENTS.md agentreadme.com/draft/k3s-io/k3s.md

Show the mark

The badge re-checks daily, so it keeps up as the repository changes. Use mark again to force it now.

[![agent ready](https://agentreadme.com/badge/k3s-io/k3s.svg)](https://agentreadme.com/k3s-io/k3s)

Other Go repositories, marked

avelino/awesome-go 75 B+ ollama/ollama 85 A golang/go 30 D kubernetes/kubernetes 72 B+ microsoft/TypeScript 80 A- fatedier/frp 93 A+

All Go repositories

Think this mark is wrong?

Every deduction above names the file it came from, so this can be settled by looking. If a check missed something, that is a rule worth fixing.

Open an issue, already filled in