Borrowing it
Nothing to install: this file belongs to rahmanef63/control-room. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/rahmanef63/control-room/main/.claude/agents/vps-host-agent.mdgit clone --depth 1 https://github.com/rahmanef63/control-roomWrote 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/agents/rahmanef63/control-room/vps-host-agent)<a href="https://agentmods.dev/agents/rahmanef63/control-room/vps-host-agent"><img src="https://agentmods.dev/badge/agents/rahmanef63/control-room/vps-host-agent/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/agents/rahmanef63/control-room/vps-host-agent"><img src="https://agentmods.dev/badge/agents/rahmanef63/control-room/vps-host-agent.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00040 | $0.00479 |
| Opus 5.5 | $0.00016 | $0.00192 |
| Sonnet 5.5 | $0.00008 | $0.00096 |
| Haiku 4.5 | $0.00004 | $0.00048 |
Grade A, and why
vps-host-agent 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 2mo 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.
What it actually says
VPS Host Agent
Only change agent/ unless a shared contract or tightly-coupled operational document must change. Read root CLAUDE.md first.
Runtime invariants
- Daemon runtime is Node.js 22.
node-ptyowns interactive shell sessions; do not migrate the daemon to Bun without explicit PTY/job-control proof.- Agent binds
127.0.0.1:4001by default. - Every privileged endpoint authenticates the gateway secret before doing host work.
- The agent is the only Control Room component allowed to touch PTYs and bounded host/file operations required by terminal UX. Do not add generic service/app/provider control surfaces.
- Durable shared terminal/workspace state is JSON under the configured agent state/var directory.
Terminal invariants
- Preserve PTY input order, resize semantics, reconnect buffers, process-group teardown, Ctrl-C, and job control.
- A session close must terminate the PTY child tree rather than leave orphaned agent/CLI processes.
- Bound queues/buffers; do not allow one slow browser/client to grow memory without limit.
- Frontend browser clients do not connect to this WebSocket directly. SvelteKit holds the WS connection and exposes SSE to the browser.
Collector/API rules
- One collector failure must not terminate the process.
- Validate and jail filesystem paths at the agent boundary.
- Keep host-control APIs loopback-bound unless the cross-host design explicitly adds equivalent network isolation/authentication.
- Never echo gateway secrets, environment dumps, or raw auth headers into logs/responses.
Gates
bun run docs:check
bun install --cwd agent --frozen-lockfile
bun run --cwd agent test:all
bun run --cwd agent build
git diff --check
For PTY changes, verify a real terminal can spawn, emit output, accept ordered input, resize, handle Ctrl-C, and close without leaving descendants. For frontend-only tasks, do not touch this directory.
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.
- 2mo ago Changed · -125 lines · -1 tokens per session 34b4bb62e104
- 2mo ago First seen · 171 lines · 41 tokens per session scan A 384f52ee134c
vps-host-agent is an agent published in the GitHub repository rahmanef63/control-room (19 stars, last pushed 9d ago), licensed MIT. It adds 40 tokens to every session and 479 once invoked, about $0.0002 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.
vps-host-agent compared with agents from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| vps-host-agentrahmanef63/control-room | Agent | 19 | 9d ago | MIT | A | 40 | Claude Code |
| api-documentation-specialistFortiumPartners/ensemble | Agent | 12 | yesterday | MIT | A | 14 | Claude Code |
| nodejs-expertNickCrew/Claude-Cortex | Agent | 66 | 4mo ago | MIT | A | 22 | Claude Code |
| apidatabayt/hogwarts | Agent | 18 | 3d ago | none | A | 11 | Claude Code |
| multi-tenantdatabayt/hogwarts | Agent | 18 | 3d ago | none | A | 16 | Claude Code |
| backend-engineerfirst-fluke/fullstack-starter | Agent | 225 | 3d ago | MIT | A | 17 | Claude Code |
| playwright-test-generatormicrosoft/playwright | Agent | 99k | yesterday | Apache-2.0 | A | 151 | Claude Code |