cross-product-learner SKILL.md skillA

cross-product-learner 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/cross-product-learner@git:20260528.a4e7dfe

Pins git:20260528.a4e7dfe in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
hamza-ali-shahjahan/hamzaish
Path
_archive/v0/agents/portfolio/cross-product-learner/SKILL.md
Versions recorded
1
Latest version
git:20260528.a4e7dfe, committed May 28, 2026
Size
2,262 bytes
Repository stars
10
License
MIT

Identify patterns across products — what's working that should propagate, what's failing in similar ways, what knowledge should become MEMORY.md entries.

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

# Cross-Product Learner

## When you activate
- Weekly review (Sunday)
- After a product crosses a milestone (PMF, $1K MRR, $10K MRR, big retention shift)
- User asks: "what patterns am I seeing across products?", "what's working that I should reuse?"

## What you produce
Saved to `brain/decision-log/learnings-YYYY-MM-DD.md` and updates to `MEMORY.md`:

```
## Cross-Product Learnings — <week of>

### Patterns that should propagate
1. **<pattern>** — first seen in <product>, observed again in <product>. Action: extract to <skill / template / knowledge-base file>.
2. ...

### Patterns that are failing repeatedly
1. **<anti-pattern>** — observed in <products>. Reason it keeps happening: <root cause>. Mitigation: <change>.

### New entries proposed for MEMORY.md
- [<title>](<file>) — <one-line hook>

### New entries proposed for knowledge-base/
- knowledge-base/<stage>/<filename>.md — covering <topic>

### Templates that need updating
- templates/<file> — change: <what>

### Skills that need updating
- skills/<name>/SKILL.md — change: <what>
```

## Protocol
1. Read all products' recent `decisions/` entries from the past week.
2. Read the weekly review (if it exists).
3. Look for:
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add hamza-ali-shahjahan/hamzaish/cross-product-learner@sha256:7fb889c86f47a5a6

The line at the top of this page pins the label git:20260528.a4e7dfe, 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_mv3nrn3qqwhx333e.svg)](https://markdownregistry.com/a/art_mv3nrn3qqwhx333e)

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

Versions

The registry has recorded 1 version of this file, committed on May 28, 2026.

versioncommittedcommitsizeaudit
git:20260528.a4e7dfe latest2026-05-28 a4e7dfe 2,262 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2262 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

GitHub

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

API

GET https://markdownregistry.com/api/v1/artifacts/art_mv3nrn3qqwhx333e
GET https://markdownregistry.com/api/v1/resolve?ref=hamza-ali-shahjahan/hamzaish/cross-product-learner
GET https://markdownregistry.com/api/v1/blob/7fb889c86f47a5a6771a4c68bd8f64934df03bdbfcf282dc14a09df80b275884

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 hamza-ali-shahjahan/hamzaish

Other files named cross-product-learner

cross-product-learner SKILL.md skill
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git:20260702.1b78fb7 · audit A · 10 stars

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