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
There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.
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.
[](https://agentmods.dev/commands/agentlas-ai/agentlas-os/hep-build)<a href="https://agentmods.dev/commands/agentlas-ai/agentlas-os/hep-build"><img src="https://agentmods.dev/badge/commands/agentlas-ai/agentlas-os/hep-build.svg" alt="Measured on agentmods" 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 | $0.00017 | $0.06198 |
| Opus 5 | $0.00009 | $0.03099 |
| Sonnet 5 | $0.00003 | $0.01240 |
| Haiku 4.5 | $0.00002 | $0.00620 |
Grade C, and why
hep-build scanned grade C with 2 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 6d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
- ```bash curl -fsSL https://raw.githubusercontent.com/agentlas-ai/Agentlas-OS/main/scripts/install-all-runtimes.sh | bash ``` Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- ```bash curl -fsSL https://raw.githubusercontent.com/agentlas-ai/Agentlas-OS/main/scripts/install-all-runtimes.sh | bash ``` Copies of this mod
1 near-identical copy found in the catalogue:
- hep-build.body — 97% identical, 11 lines differ
How it starts
The opening of the file, as written. The whole thing — 397 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Update fallback: 자동 업데이트가 안 되면 hephaestus update를 한 번 실행하세요. 업데이트하지 않아도 현재 버전 명령은 그대로 동작합니다.
/hep-build
Raw arguments:
$ARGUMENTS
Use Hephaestus as the Agentlas builder surface:
- create a new single agent
- create a multi-agent team
- package an existing Claude/Codex/Gemini workspace into Agentlas architecture
- analyze the current interactive session and build its reusable agent
- compile an explicitly exported session for terminal or headless replay
- repair generated Agentlas command files
- open
ontologyas the Knowledge/Memory panel
Expose this as the only public build command, next to /hep-network
and /hep-cloud. Do not advertise internal support skills as commands.
Step 0 — Resolve the engine root
Every path in steps 1, 2 and 4 belongs to Hephaestus, not to the user's project.
Read relatively and in someone else's repository you find nothing — or worse,
you find their AGENTS.md and follow it. Measured 2026-08-07: three packages
built outside this engine's own repository shipped 5 of 18 required artifacts,
because these reads silently returned nothing and the model improvised the rest.
The marker is AGENTS.md and package-contract.json together. The installed
runtime root carries the contract and the code but not the instructions — those
travel in its host_adapters/ bundle — so testing for the contract alone selects
a root where every read in steps 1, 2 and 4 comes back empty.
ENGINE=""
for candidate in \
"${CLAUDE_PLUGIN_ROOT:-}" \
"${CODEX_PLUGIN_ROOT:-}" \
"${PLUGIN_ROOT:-}" \
"${GEMINI_EXTENSION_ROOT:-}" \
"$HOME/.agentlas/runtime/current/host_adapters/claude/plugins/agentlas-core-engine-meta-agent" \
"$HOME/.agentlas/runtime/current/host_adapters/codex/plugins/agentlas-core-engine-meta-agent" \
"$HOME/.agentlas/runtime/current" \
"."
do
if [ -n "$candidate" ] && [ -f "$candidate/AGENTS.md" ] && [ -f "$candidate/package-contract.json" ] && [ -f "$candidate/contracts/builder-interview-research-gate.md" ]; then
ENGINE="$candidate"; break
fi
done
[ -z "$ENGINE" ] && { echo "Hephaestus engine not found. Run the installer first." >&2; exit 1; }
RUNNER=""
for candidate in "$HOME/.agentlas/runtime/current/bin/hephaestus" "$ENGINE/bin/hephaestus"; do
if [ -x "$candidate" ]; then RUNNER="$candidate"; break; fi
done
[ -n "$RUNNER" ] || { echo "Hephaestus runner not found." >&2; exit 1; }
echo "ENGINE=$ENGINE"
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.
- 6d ago First seen · 397 lines · 17 tokens per session scan C 9cc64915297a
hep-build is a command published in the GitHub repository agentlas-ai/Agentlas-OS (1,103 stars, last pushed today), licensed Apache-2.0. It adds 17 tokens to every session and 6,198 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other commands, from other repositories
dashboard-list-models
List reachable models from the dashboard registry. Usage /dashboard:list-models [annotated].
dashboard-server-tunnel-off
Disconnect the public tunnel. Usage /dashboard:server-tunnel-off.
dashboard-session-abort-all
Abort multiple running sessions (asks which). Usage /dashboard:session-abort-all.
dashboard-session-diff
Show file changes (git diff) for a session by id-prefix. Usage /dashboard:session-diff . Runs locally, no LLM.
dashboard-flow-auto
Toggle autonomous mode for a session's flow. Usage /dashboard:flow-auto.
dashboard-session-rename
Rename a session. Usage /dashboard:session-rename.