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.
npx skills add multiplex-ai/muggle-ai-teams --skill checkpointgit clone --depth 1 https://github.com/multiplex-ai/muggle-ai-teamsWrote 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/skills/multiplex-ai/muggle-ai-teams/checkpoint)<a href="https://agentmods.dev/skills/multiplex-ai/muggle-ai-teams/checkpoint"><img src="https://agentmods.dev/badge/skills/multiplex-ai/muggle-ai-teams/checkpoint/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/skills/multiplex-ai/muggle-ai-teams/checkpoint"><img src="https://agentmods.dev/badge/skills/multiplex-ai/muggle-ai-teams/checkpoint.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 | $0.00011 | $0.00174 |
| Opus 5.5 | $0.00004 | $0.00070 |
| Sonnet 5.5 | $0.00002 | $0.00035 |
| Haiku 4.5 | $0.00001 | $0.00017 |
Grade A, and why
checkpoint 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 14d 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.
Copies of this mod
3 near-identical copies found in the catalogue:
- muggle-social — 86% identical, 12 lines differ
- go-build — 80% identical, 12 lines differ
- save-session — 75% identical, 12 lines differ
What it actually says
/checkpoint
This skill is muggle-ai-teams' /checkpoint command, for Codex. The command itself is ../../../commands/checkpoint.md, three directories above this file. Read it and follow it as your instructions:
- Its
$ARGUMENTSis what the user wrote after$muggle-ai-teams:checkpoint, and$1,$2, … are the words of that text; with nothing written, they are empty. - It was written for Claude Code. Where it names a Claude Code tool, slash command or path, use the Codex equivalent from
../../host-tool-equivalents.md.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 14d ago First seen · 14 lines · 11 tokens per session scan A 889c29fd4427
checkpoint is a skill published in the GitHub repository multiplex-ai/muggle-ai-teams (2 stars, last pushed 12d ago), licensed MIT. It adds 11 tokens to every session and 174 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 2026-10-23.
checkpoint compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| checkpointmultiplex-ai/muggle-ai-teams | Skill | 2 | 12d ago | MIT | A | 11 | Claude Code, Codex |
| digital-brainforyourhealth111-pixel/Vibe-Skills | Skill | 3.8k | 3d ago | Apache-2.0 | A | 57 | Claude Code, Codex |
| handoff-updateFlorianBruniaux/claude-code-ultimate-guide | Skill | 6.4k | 2d ago | CC-BY-SA-4.0 | A | 60 | Claude Code |
| startanombyte93/atlas-session-lifecycle | Skill | 85 | 3mo ago | MIT | A | 55 | Claude Code |
| automation-guidealikon-art/DeterminFlow | Skill | 960 | 1mo ago | AGPL-3.0 | A | 68 | Claude Code, Codex |
| Chat Response Generatoreddiebelaval/squire | Skill | 21 | 2mo ago | MIT | A | 14 | Claude Code, Codex |
| budget-continueEnakoneschniy/claude-dev-stack | Skill | 5 | 2mo ago | MIT | A | 64 | Claude Code, Codex |