Agentlas OS is a local-first system for creating, storing, borrowing, and running specialist AI agents and temporary agent teams through supported hosts and models. It serves people who want reusable agents that remain available across computers and model workspaces, and the catalogue contains its skills, commands, hooks, agents, instructions, plugin, and rule.
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 agentlas-ai/Agentlas-OS --skill hephaestus-uploadgit clone --depth 1 https://github.com/agentlas-ai/Agentlas-OSWrote 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/agentlas-ai/agentlas-os/hephaestus-upload)<a href="https://agentmods.dev/skills/agentlas-ai/agentlas-os/hephaestus-upload"><img src="https://agentmods.dev/badge/skills/agentlas-ai/agentlas-os/hephaestus-upload/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/agentlas-ai/agentlas-os/hephaestus-upload"><img src="https://agentmods.dev/badge/skills/agentlas-ai/agentlas-os/hephaestus-upload.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 73 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 | $0.00067 | $0.01241 |
| Opus 5.5 | $0.00027 | $0.00496 |
| Sonnet 5.5 | $0.00013 | $0.00248 |
| Haiku 4.5 | $0.00007 | $0.00124 |
Grade A, and why
hephaestus-upload 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 28d 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.
How it starts
The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Hephaestus Upload (Cloud or Agentlas Hub)
Publish a finished Agentlas package. This is a WRITE surface: a Hub upload is public and other people can borrow it, so the destination question comes before any packaging or API call.
Upload is deliberately NOT folded into /hep-network. Network staffs a roster
(a read), upload publishes an artifact (a write that is hard to take back);
merging them would let "find me an agent" end in an accidental publish.
1. Ask the destination first — always
Ask this before anything else, even when the arguments already say upload, publish, add, Cloud, Hub, or name a target folder:
Cloud에 업로드할까요? 다른 사람들은 볼 수 없어요.
Upload to Cloud? Other people cannot see it.
Agentlas Hub에 업로드할까요? 다른 사람들이 빌려 쓸 수 있어요.
Upload to Agentlas Hub? Other people can borrow it.
Do not package, publish, register, add-source, reindex, or call any upload API until the user answers Cloud or Agentlas Hub. If the destination is answered but the target folder is ambiguous, ask for the exact agent folder before running anything.
2. Public Hub publishing is free
The public Hub is an agent community. Do not ask for an upload price, invoke a
price-setting tool, or pass the retired --rent-credits, --ingest-credits, or
--fork-credits flags. The CLI rejects those legacy flags. The creator's model
and API prerequisites still belong in the package guide.
3. Resolve the runner in this host
Run the preflight inside this host app; never ask the user to open a separate terminal.
RUNNER=""
for candidate in "$HOME/.agentlas/runtime/current/bin/hephaestus" "./bin/hephaestus"; do
[ -x "$candidate" ] && RUNNER="$candidate" && break
done
[ -n "$RUNNER" ] || { echo "Hephaestus runtime not found. Run the installer first." >&2; exit 1; }
4. Use one immutable upload gate
Do not run package and then publish: that packages twice and the second
artifact may differ from the one reviewed. The upload gate copies the selected
folder into a private, link-free snapshot, repairs and validates that snapshot
once, and either dry-runs or submits those exact bytes.
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.
- 28d ago Changed · -37 lines a8da32281383
- 1mo ago Changed · +7 lines 6b8bcf391c26
- 1mo ago First seen · 145 lines · 67 tokens per session scan A 40993f04de5f
hephaestus-upload is a skill published in the GitHub repository agentlas-ai/Agentlas-OS (1,588 stars, last pushed 3d ago), licensed Apache-2.0. It adds 67 tokens to every session and 1,241 once invoked, about $0.0003 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.
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