luongnv89/claude-howto is a visual, example-based guide to Claude Code, a coding tool that supports agents, hooks, skills, slash commands, and MCP servers. Developers use it to learn Claude Code through practical workflows and copyable templates, including the commands, agents, skills, plugins, and instructions catalogued here.
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/luongnv89/claude-howtoWrote 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/luongnv89/claude-howto/rollback)<a href="https://agentmods.dev/commands/luongnv89/claude-howto/rollback"><img src="https://agentmods.dev/badge/commands/luongnv89/claude-howto/rollback/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/luongnv89/claude-howto/rollback"><img src="https://agentmods.dev/badge/commands/luongnv89/claude-howto/rollback.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 | $0.00004 | $0.00159 |
| Opus 5.5 | $0.00002 | $0.00064 |
| Sonnet 5.5 | $0.00001 | $0.00032 |
| Haiku 4.5 | $0.00000 | $0.00016 |
Grade A, and why
rollback 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 5d 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
Rollback Deployment
Rollback to previous stable version:
- Identify previous deployment
- Verify rollback target is healthy
- Execute rollback procedure
- Run health checks
- Notify team
Last Updated: October 15, 2026 Claude Code Version: 2.1.300 Sources:
- https://code.claude.com/docs/en/plugins
- https://code.claude.com/docs/en/skills#frontmatter-reference Compatible Models: Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Sonnet 4.6, Claude Opus 4.8, Claude Haiku 4.5
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.
- 5d ago Changed · -2 tokens per session 75d0b7c29fba
- 1mo ago First seen · 23 lines · 6 tokens per session scan A b2c16eace09f
rollback is a command published in the GitHub repository luongnv89/claude-howto (42,095 stars, last pushed today), licensed MIT. It adds 4 tokens to every session and 159 once invoked, about $0.0000 per session on Opus 5.5. 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 2026-08-30.
Other commands, from other repositories
OPSX: Onboard
Guided onboarding - walk through a complete OpenSpec workflow cycle with narration.
OPSX: Onboard
Guided onboarding - walk through a complete OpenSpec workflow cycle with narration.
OPSX: Onboard
Guided onboarding - walk through a complete OpenSpec workflow cycle with narration.
Incident Response
A command for handling production incidents in a structured way. A production incident is a problem affecting a live service or its users.
Rollback
A command for returning software to the previous stable version.
System Status
A command for checking the health of the services in a system.