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/nvidia/openshell/tui-developmentnpx skills add NVIDIA/OpenShell --skill tui-developmentgit clone --depth 1 https://github.com/NVIDIA/OpenShellWhat 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 | $0.00073 | $0.08022 |
| Opus 5 | $0.00036 | $0.04011 |
| Sonnet 5 | $0.00015 | $0.01604 |
| Haiku 4.5 | $0.00007 | $0.00802 |
Grade A, and why
tui-development 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 2d 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 — 621 lines — stays where its author put it; the contents beside it link to each section on GitHub.
OpenShell TUI Development Guide
Comprehensive reference for any agent working on the OpenShell TUI.
1. Overview
The OpenShell TUI is a ratatui-based terminal UI for the OpenShell platform. It provides a keyboard-driven interface for managing gateways, sandboxes, and logs — the same operations available via the openshell CLI, but with a live, interactive dashboard.
- Launched via:
openshell termormise run term - Crate:
crates/openshell-tui/ - Key dependencies:
ratatui(workspace version) — usesframe.size()(notframe.area())crossterm(workspace version) — terminal backend and event pollingtonicwith TLS — gRPC client for the OpenShell gatewaytokio— async runtime for event loop, spawned tasks, and mpsc channelsopenshell-core— proto-generated types (OpenShellClient, request/response structs)openshell-bootstrap— gateway discovery (list_gateways())
- Theme: Adaptive dark/light via
Themestruct — NVIDIA-branded green accents. Controlled by--themeflag,OPENSHELL_THEMEenv var, or auto-detection.
2. Domain Object Hierarchy
The data model follows a strict hierarchy: Gateway > Workspace > Sandboxes/Providers/Settings > Logs.
Gateway (discovered via openshell_bootstrap::list_gateways())
├── Global Settings (fetched via GetGatewayConfig)
├── Global Policy indicator (fetched via ListSandboxPolicies global=true)
├── Workspaces (fetched via ListWorkspaces)
├── Provider Profiles (fetched via ListProviderProfiles, workspace-scoped)
├── Providers (fetched via ListProviders, workspace-scoped)
│ └── cached ProviderProfile (matched by type + workspace)
└── Sandboxes (fetched via ListSandboxes, workspace-scoped)
├── Policy (fetched via GetSandboxConfig)
├── Settings (effective settings with scope, from GetSandboxConfig)
├── Draft recommendations (fetched via GetDraftPolicy)
└── Logs (fetched via GetSandboxLogs + streamed via WatchSandbox)
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.
- 2d ago First seen · 621 lines · 73 tokens per session scan A b73a80f86cef
tui-development is a skill published in the GitHub repository NVIDIA/OpenShell (8,421 stars, last pushed 2d ago), licensed Apache-2.0. It adds 73 tokens to every session and 8,022 once invoked, about $0.0004 per session on Opus 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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