gstack-coder

A coding workflow that coordinates several command-line AI coding tools, including Claude Code, pi, and mini. It also includes steps for planning, code review, security checks, and testing websites.

In plain words
What is it for?
Use it to plan and build features, review code, audit security, test a URL, and run Claude Code sessions with other coding agents.
Why use it?
It helps when coding work spans different tools and several stages. Repository rules and required setup are easier to follow in one workflow.

Skill for Claude CodeCodex

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 skills/nbiish/agentsstandard-dot-com/gstack-coder
Any agent
npx skills add nbiish/agentsstandard-dot-com --skill gstack-coder
Clone the repo
git clone --depth 1 https://github.com/nbiish/agentsstandard-dot-com

Made for: Claude Code, Codex.

Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,315 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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 $0.00102 $0.02315
Opus 5 $0.00051 $0.01157
Sonnet 5 $0.00020 $0.00463
Haiku 4.5 $0.00010 $0.00231

Measured yesterday against content hash a675a322e434, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

gstack-coder 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 yesterday.

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.

.agents/skills/gstack-coder/SKILL.md · 242 lines

How it starts

The opening of the file, as written. The whole thing — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GStack Coder — Multi-Tool Coding Orchestration

This skill combines gstack (Claude Code skill pack) with pi and mini to form a complete multi-tool coding workflow. Each tool has unique strengths and subscription quotas — this skill ensures all are utilized.

PRD Anchor: Always read llms.txt in the repository root first. It is the authoritative Product Requirements Document for this repo — it defines architecture, security policy (PQC mandates, secrets management), workflow rules (git worktrees, commit conventions), and the provider/MCP infrastructure. If llms.txt and any other doc conflict, llms.txt wins. Never skip reading it.


1. GStack Installation & Setup

gstack is a collection of Claude Code skills by garrytan. Install once:

git clone --single-branch --depth 1 https://github.com/garrytan/gstack.git ~/.claude/skills/gstack && cd ~/.claude/skills/gstack && ./setup

After installation, gstack provides these slash commands inside Claude Code:

Command Purpose
/cso Security audit — full codebase security review
/review Code review — detailed PR/code review
/qa https://... QA test a URL — test a deployed endpoint
/autoplan Auto-plan — generate implementation plan for a feature
/ship Ship — build, test, and deploy pipeline
/office-hours Office hours — architect/planning discussion before building

2. Multi-Tool Coding Workflow

Tool Inventory

Tool CLI Config Location Best For
Claude Code (gstack) claude ~/.claude/ Security audits, code review, planning, shipping
pi pi (wrapper) ~/.pi/agent/ Fast non-interactive coding, extensions, themes, MCP servers
mini mini (wrapper) ~/.config/mini-swe-agent/.env Lightweight SWE agent, bash-based tasks

Provider Hot-Swap (use all subscriptions)

The ainish-coder framework supports hot-swapping provider configs via CLI wrappers. Each tool can be pointed at different API providers to maximize quota usage:

Read the full file on GitHub · 242 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. yesterday First seen · 242 lines · 102 tokens per session scan A a675a322e434

Subscribe to this mod's changes

gstack-coder is a skill published in the GitHub repository nbiish/agentsstandard-dot-com (2 stars, last pushed 3mo ago), licensed MIT. It adds 102 tokens to every session and 2,315 once invoked, about $0.0005 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.

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