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 commands/openclaw/crabbox/vncgit clone --depth 1 https://github.com/openclaw/crabboxWhat 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 | $0.00000 | $0.03838 |
| Opus 5 | $0.00000 | $0.01919 |
| Sonnet 5 | $0.00000 | $0.00768 |
| Haiku 4.5 | $0.00000 | $0.00384 |
Grade A, and why
vnc 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 — 366 lines — stays where its author put it; the contents beside it link to each section on GitHub.
vnc
crabbox vnc prints (or opens) the connection details for a desktop-capable
lease. For a managed desktop lease it gives you a loopback SSH tunnel and a
local VNC endpoint. Crabbox-bootstrapped desktops also print their generated
per-lease password; External desktops keep operator-owned passwords out of
normal command output. For a static SSH host it describes an existing
host-managed VNC service instead of pretending the host is a Crabbox-created
box.
VNC and WebVNC credential reads share a 30-second operation deadline, including SSH preparation and connection attempts. An earlier caller deadline still wins. Cancellation retains the transport's bounded process and remote cleanup, so cleanup can add a short delay before the command returns. Reads retain at most 64 KiB of raw stdout and discard stderr. An oversized read or any failure, including cleanup failure, returns no credential; partial passwords never reach a viewer or command output. This is a transport budget, not VNC's eight-byte DES key limit: longer macOS/ARD account passwords remain intact. Existing optional-credential and managed None-auth behavior is unchanged.
Use it when you want to view or manually drive the visible desktop inside a lease:
crabbox warmup --desktop
crabbox vnc --id blue-lobster
crabbox vnc --id blue-lobster --network tailscale
crabbox vnc --id blue-lobster --open
The lease must have been warmed with --desktop; crabbox vnc does not add a
desktop to an existing lease. See warmup and
Interactive desktop and VNC.
Synopsis
crabbox vnc --id <lease-id-or-slug> [flags]
You can also pass the lease id or slug as the first positional argument instead
of --id.
Flags
--id <lease-id-or-slug> Target lease (or pass it as the first argument).
--provider <name> Provider for the lease/target. Defaults to config.
--target linux|macos|windows OS of the target box.
--windows-mode normal|wsl2 Windows session mode.
--static-host <host> Static SSH host (provider=ssh).
--static-user <user> Static SSH user.
--static-port <port> Static SSH port.
--static-work-root <path> Static work root.
--network auto|tailscale|public Network path used to reach the box.
--local-port <port> Local tunnel port. Auto-picks 5901-5999 if unset.
--open Start the tunnel (if needed) and open a VNC client.
--native-handoff Emit one JSON handoff and own its foreground tunnel.
--host-managed Allow --open against a static host-managed VNC.
--reclaim Claim this lease for the current repo.
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 · 366 lines · 0 tokens per session scan A 95aa50e68d36
vnc is a command published in the GitHub repository openclaw/crabbox (1,343 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,838 tokens. 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.
Other commands, from other repositories
checklist
Generate a custom checklist for the current feature based on user requirements.
clarify
Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec.
specify
Create or update the feature specification from a natural language feature description.
analyze
Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.
constitution
Create or update the project constitution from interactive or provided principle inputs.
converge
Assess the current codebase against the feature's spec, plan, and tasks, then append any remaining unbuilt work as new tasks to tasks.md so implement can complete it.