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 agentmods add skills/langbot-app/langbot/langbot-deploynpx skills add langbot-app/LangBot --skill langbot-deploygit clone --depth 1 https://github.com/langbot-app/LangBotWhat 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 | $0.00104 | $0.01142 |
| Opus 5 | $0.00052 | $0.00571 |
| Sonnet 5 | $0.00021 | $0.00228 |
| Haiku 4.5 | $0.00010 | $0.00114 |
Grade B, and why
langbot-deploy scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
`sudo usermod -aG docker <user>` and restart in a new shell. How it starts
The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
LangBot Deployment & Configuration
Covers running LangBot in production. For development see langbot-dev.
Docker Compose (recommended)
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
# Full stack (sandbox/Box + stdio MCP hosting + skill add/edit enabled)
docker compose --profile all up
# Basic (no Box runtime)
docker compose up
The all / box profile starts three services:
langbot— main app, serves API + UI on:5300.langbot_plugin_runtime— plugin runtime (control:5400, debug:5401).langbot_box— Box sandbox runtime (:5410). Uses the host Docker socket to spawn sandbox containers, so the Box root host path and in-container path must be identical (BOX__LOCAL__HOST_ROOT=${LANGBOT_BOX_ROOT:-${PWD}/data/box}). OSS allows its RPC and managed-process relay to run without a token when both sides leaveLANGBOT_BOX_CONTROL_TOKENunset. For an exposed endpoint, set the same value of at least 32 non-whitespace characters in both the LangBot and Box containers. Generate it once withopenssl rand -hex 32; never put it inbox.runtime.endpointor commit it to config.
A Compose deployment may optionally set
LANGBOT_PLUGIN_RUNTIME_CONTROL_TOKEN on both langbot and
langbot_plugin_runtime when port 5400 needs shared-secret protection. OSS
defaults to leaving it unset on both sides. If enabled, generate one value with
openssl rand -hex 32; configuring only one side causes the control connection
to fail. Kubernetes may use the langbot-plugin-runtime-control Secret shown in
docker/kubernetes.yaml.
With Box off, the dashboard/skills list stays visible (read-only) but sandbox
tools, skill add/edit, and stdio MCP are disabled. Set box.enabled: false
(or BOX__ENABLED=false) to match.
Kubernetes
See docker/kubernetes.yaml and the deployment guide at
https://docs.langbot.app. docker/deploy-k8s-test.sh is a test helper.
config.yaml (generated at data/config.yaml on first run)
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.
- yesterday First seen · 98 lines · 104 tokens per session scan B 9807af13ec30
langbot-deploy is a skill published in the GitHub repository langbot-app/LangBot (17,616 stars, last pushed yesterday), licensed Apache-2.0. It adds 104 tokens to every session and 1,142 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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