Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/MadAppGang/magusnpx agentmods add commands/madappgang/magus/watchWrote 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/commands/madappgang/magus/watch)<a href="https://agentmods.dev/commands/madappgang/magus/watch"><img src="https://agentmods.dev/badge/commands/madappgang/magus/watch/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/commands/madappgang/magus/watch"><img src="https://agentmods.dev/badge/commands/madappgang/magus/watch.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 | $0.00042 | $0.00897 |
| Opus 5.5 | $0.00017 | $0.00359 |
| Sonnet 5.5 | $0.00008 | $0.00179 |
| Haiku 4.5 | $0.00004 | $0.00090 |
Grade A, and why
watch 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 1mo 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 — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/terminal:watch
Starts a long-running process, blocks until it is ready or fails, and reports which slot it runs in. The slot stays open for later observation.
Usage
/terminal:watch {command}
/terminal:watch {command} --isolated
Examples
/terminal:watch "bun run dev"
/terminal:watch "npm test -- --watch"
/terminal:watch "docker-compose up"
/terminal:watch "go run ./cmd/server" --isolated
Slot Choice
- Default: slot 1, the visible helper pane beside the user. They can see the server log as it scrolls.
--isolated: slot 2 or higher withisolated: true, a pane the user does not see. Callmcp__plugin_terminal_mux__list-slotsfirst when you may already hold slots (after context compaction) and pick a number not in the array.
Report the result as "running in slot N" and remind the user to remember the slot number: /terminal:observe N and /terminal:slots close N address it later.
What It Does
One blocking call starts the process and waits for a readiness signal; no polling loop.
mcp__plugin_terminal_mux__start-and-watch({
slot: 1,
command: "<user_command>",
pattern: "<readiness_regex>",
triggers: "exit,error",
mode: "quick",
timeout: 60
}) → { slot: 1, created: true, event, detail, elapsed, output, paneState }
With --isolated, add isolated: true and use slot 2 or higher. created: false means the slot already existed and the command ran in it.
Pattern Selection by Command Type
| Command type | Pattern |
|---|---|
| Bun/Node dev server | "Local:.*http|listening on|ready in" |
| Go server | "listening on|started on|server running" |
| Test watcher (Vitest/Jest) | "press a to rerun|Waiting for file changes" |
| Bun test watcher | "Ran [0-9]+ tests? across" (bun prints no idle marker; this line ends every run) |
| docker-compose up | "healthy|started" |
| Log tail | any line, then watch-pane({ slot, triggers: "idle:5" }) |
Reading the Result
event |
Meaning | Next action |
|---|---|---|
"pattern:…" |
Readiness pattern matched | Report "running in slot N" |
"error" |
Error output detected | Report the error with output |
"exit" |
Process exited | Check paneState.isAlive; report exit |
"timeout" |
No signal within timeout |
Report "still starting in slot N" |
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.
- 1mo ago Changed 00c442683cb4
- 1mo ago Changed · -8 lines · +4 tokens per session 470b5a64e9e3
- 1mo ago First seen · 89 lines · 38 tokens per session scan A 4d74ec80e282
watch is a command published in the GitHub repository MadAppGang/magus (13 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 897 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 2026-09-04.
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speckit.bug.fix
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