agentmods.dev

kstack CLAUDE.md

kstack CLAUDE.md is an instructions file for coding agents from kubetail-org/kstack. It costs 4,033 tokens per session, scanned C, original, Apache-2.0.

A repository instruction file for kstack, a pack of skills and shell scripts distributed to coding-agent command-line tools rather than a standalone application.

In plain words
What is it for?
Use it when editing skills, installation code, or shared shell helpers, especially to check Bash 3.2 compatibility and repository commands.
Why use it?
It records the supported shell version and project layout, preventing contributors from using Bash features that fail on the older Bash shipped with macOS.

Instructions file

not rated 98 +1 3mo ago C scan 4,033 tokens original Apache-2.0
View the source file kubetail-org/kstack
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.

agentmods
npx agentmods add instructions/kubetail-org/kstack/claude-md
Clone the repo
git clone --depth 1 https://github.com/kubetail-org/kstack

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 kstack CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/kubetail-org/kstack/claude-md.svg)](https://agentmods.dev/instructions/kubetail-org/kstack/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/kubetail-org/kstack/claude-md"><img src="https://agentmods.dev/badge/instructions/kubetail-org/kstack/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 4,033 This file is loaded in full into every session.
When invoked 4,033 The same file — it is already loaded in full.
Security scan C 2 findings. Scan, not verified.
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 $0.04033 $0.04033
Opus 5 $0.02017 $0.02017
Sonnet 5 $0.00807 $0.00807
Haiku 4.5 $0.00403 $0.00403

Measured 4d ago against content hash bcf3f613f30a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

kstack CLAUDE.md scanned grade C with 2 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 4d 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

- `scripts/bootstrap.sh` — the hosted `curl | bash` getter. Clones an upstream checkout, then execs `$UPSTREAM/scripts/install`.

Makes network callslowCapability

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

- `scripts/bootstrap.sh` — the hosted `curl | bash` getter. Clones an upstream checkout, then execs `$UPSTREAM/scripts/install`.
CLAUDE.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

What this repo is

kstack is a skill pack (not an app) distributed to Claude Code and other agent CLIs. The shipped artifacts are SKILL.md files plus a handful of helper shell scripts in src/bin/. There is no runtime service — everything is POSIX shell rendered/executed at install time or inside an agent session.

Shipped shell (scripts/install, everything under src/bin/ and src/lib/, plus any skill scripts/main) must run on bash 3.2+ — that's what macOS's /usr/bin/bash is, and we don't assume users have a newer bash on PATH. Concretely: no declare -A, no ${var,,}/${var^^}, no mapfile/readarray, no [[ =~ ]] BASH_REMATCH patterns that rely on 4.x fixes, and no &> redirection. The big footgun is set -u + empty arrays: "${arr[@]}" raises unbound variable in 3.2 when arr=(). Either guard iteration with [ ${#arr[@]} -eq 0 ] && continue, or use ${arr[@]+"${arr[@]}"} at the expansion site. Dev-only scripts (scripts/*.sh, tests/**) may assume a newer bash since they only run on CI/contributor machines.

Layout

Split is: src/ = installer payload (what gets copied/rendered into an install root); everything else = dev infra.

  • Makefile — contributor dev entrypoint. Thin facade over scripts/ (make install, make test, make lint, etc.).
  • src/{bin,lib,skills,schemas}/ — the payload: sources copied verbatim (bin, lib, schemas) or template-rendered (skills) into an install root.
  • scripts/install — the installer. Reads from src/ and writes outputs (.kstack/, .<agent>/skills/) at the repo root in dev mode.
  • scripts/bootstrap.sh — the hosted curl | bash getter. Clones an upstream checkout, then execs $UPSTREAM/scripts/install.
  • scripts/{lint,test,test-e2e,test-evals,clean}.sh — repo dev scripts.
  • tests/{unit,integration,e2e,evals,fixtures}/ — bats + eval harness. Dev-only; not part of the payload.
  • CLAUDE.md, TODO.md, README.md, LICENSE, assets/, .github/ — repo metadata.

Read the full file on GitHub · 95 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. 4d ago First seen · 95 lines · 4,033 tokens per session scan C bcf3f613f30a

Subscribe to this mod's changes

kstack CLAUDE.md is an instructions file published in the GitHub repository kubetail-org/kstack (98 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 4,033 tokens to every session, about $0.0202 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

agentsaiclaudeclaude-codecodexkubernetes
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