gsd:undo

gsd:undo is a command for Claude Code from mrboups/xbrain. It costs 23 tokens per session (281 once invoked), scanned A, original, MIT.

A Git rollback command that reverts commits belonging to a selected plan or project phase, with dependency checks.

In plain words
What is it for?
Use it to review recent GSD commits or roll back the last change, a phase, or a specific plan.
Why use it?
It helps undo grouped changes while reducing the risk of removing work that other changes depend on.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool.

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 commands/mrboups/xbrain/undo
Clone the repo
git clone --depth 1 https://github.com/mrboups/xbrain

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:undo

README.md
[![agentmods](https://agentmods.dev/badge/commands/mrboups/xbrain/undo.svg)](https://agentmods.dev/commands/mrboups/xbrain/undo)
Your own site
<a href="https://agentmods.dev/commands/mrboups/xbrain/undo"><img src="https://agentmods.dev/badge/commands/mrboups/xbrain/undo.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 281 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 5.1 $0.00023 $0.00281
Opus 5 $0.00012 $0.00140
Sonnet 5 $0.00005 $0.00056
Haiku 4.5 $0.00002 $0.00028

Measured 2d ago against content hash a3916c4910fa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

gsd:undo 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 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.

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.

.claude/commands/gsd/undo.md · 35 lines

What it actually says

Three modes:

  • --last N: Show recent GSD commits for interactive selection
  • --phase NN: Revert all commits for a phase (manifest + git log fallback)
  • --plan NN-MM: Revert all commits for a specific plan

<execution_context> @D:/VSC/xbrain/.claude/get-shit-done/workflows/undo.md @D:/VSC/xbrain/.claude/get-shit-done/references/ui-brand.md @D:/VSC/xbrain/.claude/get-shit-done/references/gate-prompts.md </execution_context>

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 · 35 lines · 23 tokens per session scan A a3916c4910fa

Subscribe to this mod's changes

gsd:undo is a command published in the GitHub repository mrboups/xbrain (2 stars, last pushed 22d ago), licensed MIT. It adds 23 tokens to every session and 281 once invoked, about $0.0001 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 2026-09-03.