fetcher-eventbus SKILL.md skillA
fetcher-eventbus from ahoo-wang/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ahoo-wang/skills/fetcher-eventbus@git:20261004.2702e5dPins git:20261004.2702e5d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ahoo-wang/skills
- Path
plugins/ahoo-fetcher-skills/skills/fetcher-eventbus/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261004.2702e5d, committed Oct 4, 2026
- First version recorded
- May 27, 2026
- Size
- 3,887 bytes
- Repository stars
- 2
- License
- Apache-2.0
Publish and subscribe typed events with `@ahoo-wang/fetcher-eventbus`: `SerialTypedEventBus` (ordered), `ParallelTypedEventBus`, `BroadcastTypedEventBus` across browser tabs, the multi-type `EventBus`, `once` handlers and cross-tab messengers. Use to notify components or other tabs that something happened when nothing needs to be stored. To persist a value (localStorage) and sync it across tabs use fetcher-storage.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# fetcher-eventbus
## Decisions
- **Serial vs parallel**: `SerialTypedEventBus` awaits handlers one by one, sorted by `order` (lower first, default 0). `ParallelTypedEventBus` runs them concurrently and **ignores `order`**; switch to serial when order matters.
- **Across tabs**: wrap a local bus — `new BroadcastTypedEventBus({ delegate: new SerialTypedEventBus('cart') })` (an options object, not the bus positionally). `emit` runs local handlers first, then posts; a tab never receives its own message and received messages are not re-broadcast. Payloads cross tabs by structured clone (`BroadcastChannel`) or JSON (`StorageMessenger` fallback): send plain data.
- **Several event types**: `EventBus<Events>(type => new SerialTypedEventBus(type))` routes by type, creating each type's bus on first `on` or `emit`.
- **Need the value later, not just the notification?** That is `$fetcher-storage` (`KeyStorage`), which uses these buses underneath.
## Gotchas a capable model gets wrong
…Read the whole file at its exact version.
How to install
mdr add ahoo-wang/skills/fetcher-eventbus@sha256:73dbceecb76c3bd0The line at the top of this page pins the label git:20261004.2702e5d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_bljac236odbxiym7)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between May 27, 2026 and Oct 4, 2026, about one every 26 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261004.2702e5d latest | 2026-10-04 | 2702e5d | 3,887 B | A | view · diff |
| git:20261003.10ae121 | 2026-10-03 | 10ae121 | 3,127 B | A | view · diff |
| git:20260924.b36c6c8 | 2026-09-24 | b36c6c8 | 2,964 B | A | view · diff |
| git:20260818.2ff7b22 | 2026-08-18 | 2ff7b22 | 1,539 B | A | view · diff |
| git:20260804.1ce42d6 | 2026-08-04 | 1ce42d6 | 1,814 B | A | view · diff |
| git:20260527.808710c | 2026-05-27 | 808710c | 1,884 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3887 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
ahoo-wang/skills · 2 stars · license Apache-2.0 · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bljac236odbxiym7 GET https://markdownregistry.com/api/v1/resolve?ref=ahoo-wang/skills/fetcher-eventbus GET https://markdownregistry.com/api/v1/blob/73dbceecb76c3bd00b9f1cde65d402690ca069ed3d4b999abe3d800022c8b483
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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