launch-gotchas SKILL.md skillB

launch-gotchas from hamza-ali-shahjahan/hamzaish is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add hamza-ali-shahjahan/hamzaish/launch-gotchas@git:20261007.6b62766

Pins git:20261007.6b62766 in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 16 of 17 checks passed
Kind
SKILL.md skill
Repository
hamza-ali-shahjahan/hamzaish
Path
factory/plugins/web-launch/skills/launch-gotchas/SKILL.md
Versions recorded
3
Latest version
git:20261007.6b62766, committed Oct 7, 2026
First version recorded
Jun 12, 2026
Size
15,131 bytes
Repository stars
10
License
MIT

A library of real, hard-won website-launch failure modes — each with what happened, the root cause, and how to prevent it. Use before starting a launch, when debugging a launch-time SEO/analytics/performance problem (indexation not happening, redirect or canonical issues, analytics undercounting, schema validation failing, CWV regressions, robots.txt mistakes), or when a launch checklist item refuses to verify. These are the mistakes that normally only get learned by being burned. Companion to…

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

# launch-gotchas

> The stuff that usually only lives in someone's head after they've shipped a few sites
> and gotten burned. Read it **before** a launch so you recognize the trap, and **during**
> a launch when something won't verify. Stack specifics (Cloudflare / Yoast / Next.js /
> Semrush) are illustrative common-stack examples — each lesson states the underlying
> principle so it survives a stack swap.

## The meta-lesson

**"Done" is not "Verified."** Most entries below are a variation of the same root failure: someone marked something complete, and the objective check was never run — or was run with the wrong tool. Every prevention here reduces to *run the real check, independently, before closing the item.*

---

## Verification & audit-tool traps

### Done-without-verification *(the crown jewel)*
**What happened:** A duplicate-canonical issue was marked Done. Two weeks later search-console validation FAILED — several URLs still affected. The redirect was working; the canonicalization wasn't.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add hamza-ali-shahjahan/hamzaish/launch-gotchas@sha256:a9dc5386c89da5dd

The line at the top of this page pins the label git:20261007.6b62766, 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_fl4fqje4ky6e2s6y.svg)](https://markdownregistry.com/a/art_fl4fqje4ky6e2s6y)

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

Versions

The registry has recorded 3 versions of this file, between Jun 12, 2026 and Oct 7, 2026, about one every 58 days. Its first recorded version is graded A and its latest B.

versioncommittedcommitsizeaudit
git:20261007.6b62766 latest2026-10-07 6b62766 15,131 BB view · diff
git:20260629.ca751e32026-06-29 ca751e3 13,903 BB view · diff
git:20260612.265ce042026-06-12 265ce04 12,121 BA 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 instruction to read or print local credentials (matched: Read `.env)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (15131 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 base64 blob over 200 characters
  • pass: No link to a raw IP address
  • 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

hamza-ali-shahjahan/hamzaish · 10 stars · license MIT · pushed 2026-10-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_fl4fqje4ky6e2s6y
GET https://markdownregistry.com/api/v1/resolve?ref=hamza-ali-shahjahan/hamzaish/launch-gotchas
GET https://markdownregistry.com/api/v1/blob/a9dc5386c89da5dd82c4c8b2701b75c1efdc7e18630c2be38ef7a4d5c683c7ef

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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