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.
git clone --depth 1 https://github.com/mrmyothet/zach-hair-studioWrote 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.
[](https://agentmods.dev/commands/mrmyothet/zach-hair-studio/gsd-undo)<a href="https://agentmods.dev/commands/mrmyothet/zach-hair-studio/gsd-undo"><img src="https://agentmods.dev/badge/commands/mrmyothet/zach-hair-studio/gsd-undo/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/mrmyothet/zach-hair-studio/gsd-undo"><img src="https://agentmods.dev/badge/commands/mrmyothet/zach-hair-studio/gsd-undo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00023 | $0.00292 |
| Opus 5 | $0.00012 | $0.00146 |
| Sonnet 5 | $0.00005 | $0.00058 |
| Haiku 4.5 | $0.00002 | $0.00029 |
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 9d 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.
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> @/home/myothet/repos/vct/zach-hair-studio/landing-page/.claude/gsd-core/workflows/undo.md @/home/myothet/repos/vct/zach-hair-studio/landing-page/.claude/gsd-core/references/ui-brand.md @/home/myothet/repos/vct/zach-hair-studio/landing-page/.claude/gsd-core/references/gate-prompts.md </execution_context>
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.
- 9d ago First seen · 36 lines · 23 tokens per session scan A 6d4c0758f3b5
gsd-undo is a command published in the GitHub repository mrmyothet/zach-hair-studio (11 stars, last pushed 28d ago), licensed MIT. It adds 23 tokens to every session and 292 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.
Other commands, from other repositories
bug-fix
Systematic workflow for fixing bugs including issue creation, branch management, and PR submission.
bug-fix
Streamlines bug fixing by creating a GitHub issue first, then a feature branch for implementing and thoroughly testing the solution before merging.
gsd:audit-fix
Autonomous audit-to-fix pipeline — find issues, classify, fix, test, commit.
simplify-transform
Apply verified simplifications with user approval. Part of simplify- family.
dev
Developer tools — debug, commit, PR, code review, refactoring.
yolo-abort
Immediate halt of /yolo Hive session mid-action — partial state saved, in-flight git operations rolled back where possible, audit log finalized with abort flag.