grab-cookie SKILL.md skillA
grab-cookie from servosity/msp-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add servosity/msp-skills/grab-cookie@git:20260815.836166cPins git:20260815.836166c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- servosity/msp-skills
- Path
skills/grab-cookie/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260815.836166c, committed Aug 15, 2026
- First version recorded
- Aug 15, 2026
- Size
- 9,770 bytes
- Repository stars
- 70
- License
- a license file GitHub does not identify
Capture, store, wire, and verify a browser-session credential for any site that has no API key and no OAuth path: an httpOnly session cookie, an opaque localStorage bearer token, or a custom auth header. The human step is one DevTools "Copy as cURL" paste, and everything around it is automated: parse the request, extract the secret per a per-site JSON profile, store it in the Windows Credential Manager or the macOS Keychain without the value entering the agent's context, regenerate whatever…
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
# grab-cookie - session credentials for sites with no API path Some vendors never issue an API key. Their web app authenticates with an httpOnly session cookie or an opaque token in localStorage, and the only way to reach the API your agent needs is to borrow the session the browser already has. That capture is irreducibly human: an httpOnly cookie is invisible to page JavaScript by design, and a headless browser does not carry your login. What is NOT irreducible is everything around it. This Skill automates the rest, so a thirty-day re-auth costs one paste instead of an afternoon of remembering where the token was supposed to go. ## When to use this Skill, and when not to Use it when the vendor has no API-key or OAuth path for the surface you need, and the working credential exists only inside a logged-in browser session. Do not use it when the vendor does issue an API key or supports OAuth. The `connect-tool` Skill in this repository handles those properly, including scope changes and rotation. `connect-tool` deliberately refuses cookie import and never reads `document.cookie` or `localStorage`, which is the correct choice for its …
Read the whole file at its exact version.
How to install
mdr add servosity/msp-skills/grab-cookie@sha256:8854d1167967d336The line at the top of this page pins the label git:20260815.836166c, 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_j4vjzuo7zrt7typw)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, all committed on Aug 15, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260815.836166c latest | 2026-08-15 | 836166c | 9,770 B | A | view · diff |
| git:20260815.2191dfc | 2026-08-15 | 2191dfc | 9,605 B | A | view · diff |
| git:20260815.653aeab | 2026-08-15 | 653aeab | 9,478 B | A | view · diff |
| git:20260815.b70597f | 2026-08-15 | b70597f | 8,995 B | A | view · diff |
| git:20260815.5441edb | 2026-08-15 | 5441edb | 7,706 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 (9770 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
servosity/msp-skills · 70 stars · license a license file GitHub does not identify · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_j4vjzuo7zrt7typw GET https://markdownregistry.com/api/v1/resolve?ref=servosity/msp-skills/grab-cookie GET https://markdownregistry.com/api/v1/blob/8854d1167967d336f58f3dd7024ec61c94a741cc15d0bbd5ad92990977d40d8b
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.