Borrowing it
Nothing to install: this file belongs to ardanlabs/kronk. 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/ardanlabs/kronk/main/.agents/skills/kronk-service-architecture/SKILL.mdgit clone --depth 1 https://github.com/ardanlabs/kronkWrote 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/ardanlabs/kronk/kronk-service-architecture)<a href="https://agentmods.dev/skills/ardanlabs/kronk/kronk-service-architecture"><img src="https://agentmods.dev/badge/skills/ardanlabs/kronk/kronk-service-architecture/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/ardanlabs/kronk/kronk-service-architecture"><img src="https://agentmods.dev/badge/skills/ardanlabs/kronk/kronk-service-architecture.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 | $0.00190 | $0.01922 |
| Opus 5.5 | $0.00076 | $0.00769 |
| Sonnet 5.5 | $0.00038 | $0.00384 |
| Haiku 4.5 | $0.00019 | $0.00192 |
Grade A, and why
kronk-service-architecture 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 2d 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 — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Kronk Service Architecture
The diagram is the request flow, not import direction (see the import rule below). Every arrow is an ownership boundary (Chapter 20 §20.5.1); the owner of a concern is the only place it is implemented.
cmd/kronk (CLI) ─┐ examples/ (separate module, public SDK only)
▼ │
cmd/server/foundation/{web,logger} transport, request lifecycle, logging primitives
cmd/server/app/sdk/{mid,errs,mux,…} middleware, error translation (errs.FromSDK), auth, mux
cmd/server/app/domain/<x>app routes, access, model lookup, error mapping; typed endpoints
│ also own request/response structs (inference: SDK *HTTP writes)
▼
sdk/pool ──► sdk/{kronk,bucky,malina}/pool ──► sdk/pool/engine (+ resman reservations)
▼
sdk/kronk · sdk/bucky · sdk/malina one-model public handles: admission, active use, unload
▼
sdk/kronk/model (batch engine, IMC, MTP) · sdk/bucky/model · sdk/malina/model native state
▼
yzma / llama.cpp · whisper.cpp · stable-diffusion.cpp
sdk/tools/* catalogs, downloads, libs, devices: shared by CLI and toolapp
Which reference to read (MUST)
<skill> = this file's dir. Read the matching reference before writing or auditing the code it covers. This file holds only the invariants.
| Task | Read |
|---|---|
HTTP edge (SDK *HTTP pass-through vs typed endpoints), enums (*_types.go), options, SDK errors and their HTTP mapping |
<skill>/references/types.md |
| Handles, pools, engines, streams, IMC, prompt plans, parsers, Responses normalization, speculative/MTP, tracing, Bucky | <skill>/references/lifecycle.md |
Conditional logic in any Go code: 1-3 branches, nested if/else, type assertions on any |
<skill>/references/branching.md |
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 2d ago First seen · 57 lines · 190 tokens per session scan A c727fbcd8691
kronk-service-architecture is a skill published in the GitHub repository ardanlabs/kronk (864 stars, last pushed yesterday), licensed Apache-2.0. It adds 190 tokens to every session and 1,922 once invoked, about $0.0008 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 2026-11-04.
kronk-service-architecture compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| kronk-service-architectureardanlabs/kronk | Skill | 864 | yesterday | Apache-2.0 | A | 190 | Claude Code, Codex |
| golang-testingaffaan-m/ECC | Skill | 298k | 4d ago | MIT | A | 37 | Claude Code, Kiro |
| golang-patternsaffaan-m/ECC | Skill | 298k | 4d ago | MIT | A | 45 | Claude Code, Kiro |
| golang-testingsamber/cc-skills-golang | Skill | 3.8k | 5d ago | MIT | A | 115 | Claude Code |
| golang-uber-fxsamber/cc-skills-golang | Skill | 3.8k | 5d ago | MIT | A | 122 | Claude Code |
| golang-samber-oopssamber/cc-skills-golang | Skill | 3.8k | 5d ago | MIT | A | 74 | Claude Code |
| ax-go-agent-optimizeax-llm/ax | Skill | 3.0k | 3d ago | Apache-2.0 | A | 51 | Claude Code, Codex |