browser-automation SKILL.md skillA
browser-automation from henrigrimm/minnow is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add henrigrimm/minnow/browser-automation@git:20261007.306e7f0Pins git:20261007.306e7f0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- henrigrimm/minnow
- Path
src/skills/browser-automation/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261007.306e7f0, committed Oct 7, 2026
- First version recorded
- May 19, 2026
- Size
- 3,477 bytes
- Repository stars
- 25
- License
- AGPL-3.0
Drive Minnow's visible preview or isolated Agent Browser for login flows, SPAs, and screenshots. Use when fetch tools are insufficient or the user mentions browser automation.
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
# Browser automation (preview and Agent Browser) Use **`browser_*` tools** for authenticated pages, dynamic JS, visual verification, or UI testing. There are two surfaces: - `surface: "agent"` is the default isolated Agent Browser. It runs a headless installed Chrome, Edge, Brave, or Chromium session through the local server. - `surface: "user"` targets a visible Chromium preview tab in the Minnow desktop shell. Keep these surfaces separate. Agent Browser ownership is enforced by the run identity; never guess or reuse another owner's tab id. Use `surface: "user"` only when the user asks you to work in their visible preview. If `browser_reserve_tab` fails, stop and tell the user; do not retry on `surface: "user"`. ## When to use preview browser vs fetch tools | Need | Tool | |------|------| | Public HTML, no login | `fetch_web_content` (browser executor) | | Login, SPA, CORS-blocked, isolated run | Agent `browser_reserve_tab` → `browser_navigate` + `browser_snapshot` | | Deliberate visible preview work | User `browser_list` / `browser_new_tab`, then explicit `tab_id` | | Visual proof | `browser_screenshot` (Agent Browser screenshots work with the viewer closed) | ## Workflow …
Read the whole file at its exact version.
How to install
mdr add henrigrimm/minnow/browser-automation@sha256:675e966692971fa7The line at the top of this page pins the label git:20261007.306e7f0, 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_brvojnmfsxucrkby)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between May 19, 2026 and Oct 7, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.306e7f0 latest | 2026-10-07 | 306e7f0 | 3,477 B | A | view · diff |
| git:20260911.105853e | 2026-09-11 | 105853e | 3,476 B | A | view · diff |
| git:20260910.f5f17e4 | 2026-09-10 | f5f17e4 | 3,301 B | A | view · diff |
| git:20260530.86cc513 | 2026-05-30 | 86cc513 | 1,453 B | A | view · diff |
| git:20260524.673ea7f | 2026-05-24 | 673ea7f | 1,486 B | A | view · diff |
| git:20260520.a13d1dd | 2026-05-20 | a13d1dd | 1,180 B | A | view · diff |
| git:20260519.c82c3bc | 2026-05-19 | c82c3bc | 1,183 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 (3477 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
henrigrimm/minnow · 25 stars · license AGPL-3.0 · pushed 2026-10-25 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_brvojnmfsxucrkby GET https://markdownregistry.com/api/v1/resolve?ref=henrigrimm/minnow/browser-automation GET https://markdownregistry.com/api/v1/blob/675e966692971fa7db28a99d6316674d426787e92107411f720c678da5643b47
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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