Borrowing it
Nothing to install: this file belongs to standardbeagle/agnt. 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/standardbeagle/agnt/main/.claude/skills/messaging-queue/SKILL.mdgit clone --depth 1 https://github.com/standardbeagle/agntWrote 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/standardbeagle/agnt/messaging-queue)<a href="https://agentmods.dev/skills/standardbeagle/agnt/messaging-queue"><img src="https://agentmods.dev/badge/skills/standardbeagle/agnt/messaging-queue/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/standardbeagle/agnt/messaging-queue"><img src="https://agentmods.dev/badge/skills/standardbeagle/agnt/messaging-queue.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00043 | $0.03364 |
| Opus 5.5 | $0.00017 | $0.01346 |
| Sonnet 5.5 | $0.00009 | $0.00673 |
| Haiku 4.5 | $0.00004 | $0.00336 |
Grade A, and why
messaging-queue 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 14d 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 — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Messaging Queue Coordination
Use this skill when touching any code that delivers events to an AI agent — PTY stdin injection, MCP Log() notifications, channel pings, overlay toasts, hold buffers, alert hubs, or auto-forward paths. Every "spamming the agent" bug we have shipped traces back to violating one of the rules below.
The Single-Queue Rule
There is exactly one ordered pipeline from "raw event" to "agent's input". Anything that writes to the agent surface MUST flow through it. Parallel writes are bugs, even when they "work" most of the time — they bypass dedup, activity-deferral, outage-holds, and ordering, and they are the canonical cause of repeated-message spam.
Currently in this project the canonical queue is internal/overlay/alerts.go::AlertScanner (process-output side) plus the daemon-side gate chain in internal/daemon/hub_helpers.go::wireProxyLogger (proxy-side).
Resolved (PTY side): the browser-error / auto-forward path
cmd/agnt/overlay.go::processAutoForwardEvent no longer writes the PTY
directly. It cascade-filters then calls AlertScanner.Inject, so browser-JS
and HTTP errors now share the same dedup / batch / overload-throttle /
activity-defer queue as process-output alerts. The old lastForwardNs global
single-timestamp debounce has been removed. The remaining direct typeText
in processProxyEvent is for non-error UI/automation events (panel messages,
sketch, design) only — error sources all flow through the queue.
Resolved (channel mode): internal/tools/channel_sink.go::ChannelSink no
longer forwards error-class events raw. Whatever the incident pipeline ingests
from the proxy — browser JS errors, HTTP 4xx/5xx, non-info diagnostics
(pipelineOwned, mirroring fireToIncidentBus) — is dropped there and reaches
a channel-mode agent once, as the incident digest. ChannelSink keeps only
what the pipeline does not carry: user actions (panel message, interaction,
responsive handoff — delivered immediately, never deduplicated) and the
adapter-less machine events (custom logs, info diagnostics, status-less
transport failures — these alone still honour channel.dedupe-window, which is
not sink-side dedup of pipeline traffic).
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.
- 14d ago Changed · +27 lines 6bb8b8a2f7e4
- 1mo ago First seen · 154 lines · 43 tokens per session scan A e307ef6ab959
messaging-queue is a skill published in the GitHub repository standardbeagle/agnt (22 stars, last pushed today), licensed Apache-2.0. It adds 43 tokens to every session and 3,364 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.
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