gsd-plan-checker

gsd-plan-checker is an agent for coding agents from shekohex/dotai. It costs 35 tokens per session (5,722 once invoked), scanned A, original, no licence file.

A plan-review agent that checks whether a proposed implementation plan is likely to meet its phase goal before coding begins. It works backwards from the desired result to find missing or weak steps.

In plain words
What is it for?
It is for reviewing plans created for a development phase and checking their goals, steps, dependencies, and expected results before execution.
Why use it?
It helps catch incomplete plans early, before time is spent implementing work that cannot deliver the intended outcome.

Agent

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/shekohex/dotai/gsd-plan-checker
Clone the repo
git clone --depth 1 https://github.com/shekohex/dotai

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-plan-checker

README.md
[![agentmods](https://agentmods.dev/badge/agents/shekohex/dotai/gsd-plan-checker.svg)](https://agentmods.dev/agents/shekohex/dotai/gsd-plan-checker)
Your own site
<a href="https://agentmods.dev/agents/shekohex/dotai/gsd-plan-checker"><img src="https://agentmods.dev/badge/agents/shekohex/dotai/gsd-plan-checker.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 5,722 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00035 $0.05722
Opus 5 $0.00017 $0.02861
Sonnet 5 $0.00007 $0.01144
Haiku 4.5 $0.00003 $0.00572

Measured 3d ago against content hash 18f77eba6a93, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

gsd-plan-checker 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 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.

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.

.opencode/agents/gsd-plan-checker.md · 713 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 · 713 lines · 35 tokens per session scan A 18f77eba6a93

Subscribe to this mod's changes

gsd-plan-checker is an agent published in the GitHub repository shekohex/dotai (10 stars, last pushed 7d ago), with no licence file. It adds 35 tokens to every session and 5,722 once invoked, about $0.0002 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.