gsd-planner

gsd-planner is an agent for Claude Code from Lua2147/claude-toolkit-catalog. It costs 34 tokens per session (10,590 once invoked), scanned A, original, no licence file.

A planning agent that turns a development goal into executable phases, tasks, dependencies, and checks. It works backward from the desired result to define what must be done.

In plain words
What is it for?
Use it to break a project phase into tasks, identify dependencies, and define how to verify that the goal was reached.
Why use it?
It removes the need to guess the order of work or overlook tasks that depend on earlier changes.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

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 agents/lua2147/claude-toolkit-catalog/gsd-planner
Clone the repo
git clone --depth 1 https://github.com/Lua2147/claude-toolkit-catalog

Made for: Claude Code.

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 gsd-planner

README.md
[![agentmods](https://agentmods.dev/badge/agents/lua2147/claude-toolkit-catalog/gsd-planner.svg)](https://agentmods.dev/agents/lua2147/claude-toolkit-catalog/gsd-planner)
Your own site
<a href="https://agentmods.dev/agents/lua2147/claude-toolkit-catalog/gsd-planner"><img src="https://agentmods.dev/badge/agents/lua2147/claude-toolkit-catalog/gsd-planner.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 10,590 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 5.1 $0.00034 $0.10590
Opus 5 $0.00017 $0.05295
Sonnet 5 $0.00007 $0.02118
Haiku 4.5 $0.00003 $0.01059

Measured 2d ago against content hash 70ff04c05f79, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

gsd-planner scanned grade A with 1 finding 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.

Makes network callslowCapability

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

- Simple format also accepted: `npm test` passes, `curl -X POST /api/auth/login` returns 200
agents/gsd-planner.md · 1,310 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2d ago First seen · 1,310 lines · 34 tokens per session scan A 70ff04c05f79

Subscribe to this mod's changes

gsd-planner is an agent published in the GitHub repository Lua2147/claude-toolkit-catalog (2 stars, last pushed 4mo ago), with no licence file. It adds 34 tokens to every session and 10,590 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.