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 skills add mindfullabai/onda-mcp --skill onda-mcp-usagegit clone --depth 1 https://github.com/mindfullabai/onda-mcpWrote 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/skills/mindfullabai/onda-mcp/onda-mcp-usage)<a href="https://agentmods.dev/skills/mindfullabai/onda-mcp/onda-mcp-usage"><img src="https://agentmods.dev/badge/skills/mindfullabai/onda-mcp/onda-mcp-usage/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/skills/mindfullabai/onda-mcp/onda-mcp-usage"><img src="https://agentmods.dev/badge/skills/mindfullabai/onda-mcp/onda-mcp-usage.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 | $0.00138 | $0.04872 |
| Opus 5 | $0.00069 | $0.02436 |
| Sonnet 5 | $0.00028 | $0.00974 |
| Haiku 4.5 | $0.00014 | $0.00487 |
Grade A, and why
onda-mcp-usage 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 11d 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 — 372 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Onda MCP usage skill
This skill tells you how to correctly use the mcp__onda__* tools exposed by the onda-mcp server (~40 tools as of 0.3.1). It is installed alongside the MCP server. Without this guide you miss non-obvious patterns (subscribe vs read, direction semantics, multi-window orchestration, inception loop).
Compatibility note
Some bug fixes shipped in @mindfullabai/[email protected] + Onda 1.9.1+:
terminal_readnow returns the full buffer even on first call (eager tap attach at PTY spawn). Pre-0.3.1 a fresh terminal returned an empty buffer untilsubscribewas active.workspace_add_terminalnow respectsdirection='down'(was silently rewritten to'row'whenever the anchor was already in a row split).window_mount_workspacenow actually splices the workspace into the tiled mosaic (pre-fix the registry was updated but the UI tab/tile never appeared). Acceptsdirection('down'|'right', default 'down') andanchorWorkspaceIdmirroring the Cmd+P picker.
If you are talking to an older host, fall back to the legacy patterns: subscribe before run, avoid direction='down' on add_terminal, click-mount via the user.
Mental model
You (Claude Code) run inside a terminal inside Onda. The onda-mcp server talks to the Onda host app via JSON-RPC over UDS at ~/.config/onda/onda.sock. Inception loop: every action through mcp__onda__* mutates the app you're running inside. Treat pane/workspace state as shared mutable with the user — do not assume it stays the same.
Onda has three layout primitives:
- Window: Electron BrowserWindow. N workspaces can coexist in one Window in tiled mode.
- Workspace: root folder + collection of panes. Mounted into a Window.
- Pane: container with
contentType: terminal | editor | diff. Terminals have a stableterminalId(survives split/merge).
Internal workspace layout = mosaic-component tree. Read it via onda_workspace_layout.
When to use what — cheat sheet
| Goal | Tool |
|---|---|
| "Which workspaces exist" | onda_workspace_list |
| "Which Windows are open" | onda_window_list |
| "How is workspace X laid out" | onda_workspace_layout |
| "I want to see what the user sees" | onda_window_screenshot |
| "Open a new terminal right/below pane X" | onda_workspace_add_terminal with direction + relativeToPaneId |
| "Mount workspace W in window X as a new tile" | onda_window_mount_workspace with windowId + direction ('down' or 'right') |
| "Move workspace W from one window to another" | onda_window_mount_workspace with target windowId (atomic transfer, returns transferred: true) |
| "Drop workspace from its window without deleting it" | onda_workspace_unmount (registry slot released, PTYs survive) |
| "Bring a window to front" | onda_window_focus (omit windowId to focus primary) |
| "Read what the terminal has printed so far" | onda_terminal_read (no subscribe needed) |
| "I want to receive every new output chunk" | subscribe + poll loop |
| "Wait until the build finishes" | onda_terminal_wait_for with regex |
| "Press Ctrl+C / Up / Esc" | onda_terminal_send_keys (NOT terminal_send with "\x03"!) |
| "Type a command and run it" | onda_terminal_run (text + \n) |
| "Detach listener when done" | onda_terminal_unsubscribe (ALWAYS) |
| "Spawn Claude Code in a new pane with a prompt" | onda_terminal_spawn with bin=claude, args=[prompt] |
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.
- 11d ago First seen · 372 lines · 138 tokens per session scan A d7e62ffd30e9
onda-mcp-usage is a skill published in the GitHub repository mindfullabai/onda-mcp (0 stars, last pushed 3mo ago), licensed MIT. It adds 138 tokens to every session and 4,872 once invoked, about $0.0007 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 2026-08-31.
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