browser-harness SKILL.md skillB

browser-harness from tekkiiiii/the-agency is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add tekkiiiii/the-agency/browser-harness@v0.1.0

Pins v0.1.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 16 of 17 checks passed
Kind
SKILL.md skill
Repository
tekkiiiii/the-agency
Path
skills/browser-harness/SKILL.md
Versions recorded
2
Latest version
v0.1.0, committed Oct 7, 2026
First version recorded
May 18, 2026
Size
3,544 bytes
Repository stars
6
License
none declared

Use when automation needs the user's real Chrome with their sessions, cookies and extensions: "use my real browser", "browser-harness", "automate with my Chrome", "self-healing browser". CDP over WebSocket; agents write persistent helper code. Not for headless sandbox runs (use /agent-browser).

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-harness

Self-healing CDP automation framework. Connects directly to your running Chrome via a single WebSocket — agents get full browser freedom and write missing helpers during execution.

## When to Use (Decision Matrix)

| Need | Use This |
|------|----------|
| QA testing / regression / health scores | agent-browser / browse |
| Fast data extraction (no rendering) | Lightpanda |
| Full browser interaction (MCP-native) | Playwright MCP |
| **Real Chrome with your sessions/cookies/extensions** | **browser-harness** |
| **Agent needs to learn and persist site-specific patterns** | **browser-harness** |
| Local dev server testing | webapp-testing |

Use browser-harness when:
- You need the user's logged-in sessions (Gmail, LinkedIn, internal tools)
- The task requires extensions or profiles that headless can't replicate
- You want the agent to learn and improve across runs (self-healing)
- You need stealth mode / captcha solving via Browser Use Cloud

Do NOT use when:
- You only need DOM extraction (Lightpanda is 9x faster)
- You need structured QA reports with health scores (agent-browser)
- You need MCP-native tool calls without heredocs (Playwright MCP)

## Setup
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add tekkiiiii/the-agency/browser-harness@sha256:6aceae3b9dbd04ee

The line at the top of this page pins the label v0.1.0, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_xlf5f3j5f6go3b3d.svg)](https://markdownregistry.com/a/art_xlf5f3j5f6go3b3d)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between May 18, 2026 and Oct 7, 2026, about one every 142 days.

versioncommittedcommitsizeaudit
v0.1.0 latest2026-10-07 04729ed 3,544 BB view · diff
v0.1.02026-05-18 19f48dd 3,685 BB view

Audit of the latest version

B  16 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • fail: No link to a raw IP address (matched: http://127.0.0.1:9222)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3544 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 script tag

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

tekkiiiii/the-agency · 6 stars · license none declared · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xlf5f3j5f6go3b3d
GET https://markdownregistry.com/api/v1/resolve?ref=tekkiiiii/the-agency/browser-harness
GET https://markdownregistry.com/api/v1/blob/6aceae3b9dbd04ee3e486963def718fa5f261751e2a8d6f3330f8633dce2471b

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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Every file in tekkiiiii/the-agency

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