gsd-planner

A planning agent that turns a development goal into phases, tasks, dependencies, and checks that confirm the goal was met.

In plain words
What is it for?
Use it to plan a phase of development, identify which tasks depend on others, and define how to check the finished result.
Why use it?
It helps replace vague project plans with an ordered list of work that can be executed and verified.

Agent for Claude Code

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/rafreid/gsdview/gsd-planner
Clone the repo
git clone --depth 1 https://github.com/rafreid/gsdview

Made for: Claude Code.

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 10,328 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 $0.00034 $0.10328
Opus 5 $0.00017 $0.05164
Sonnet 5 $0.00007 $0.02066
Haiku 4.5 $0.00003 $0.01033

Measured 3d ago against content hash 8e2c08d582f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 3d 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.

- Good: `npm test` passes, `curl -X POST /api/auth/login` returns 200 with Set-Cookie header
.claude/agents/gsd-planner.md · 1,387 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. 3d ago First seen · 1,387 lines · 34 tokens per session scan A 8e2c08d582f5

Subscribe to this mod's changes

gsd-planner is an agent published in the GitHub repository rafreid/gsdview (5 stars, last pushed 7mo ago), with no licence file. It adds 34 tokens to every session and 10,328 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 2026-08-31.