platform-arbitrage SKILL.md skillA
platform-arbitrage from acogood/diffmode_free is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add acogood/diffmode_free/platform-arbitrage@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- acogood/diffmode_free
- Path
plugin/skills/platform-arbitrage/SKILL.md- Versions recorded
- 5
- Latest version
- v1.0.0, committed Aug 10, 2026
- First version recorded
- Jun 1, 2026
- Size
- 10,064 bytes
- Repository stars
- 165
- License
- Apache-2.0
Platform arbitrage audit for a founder's product — a Diffmode growth-tactics think-tank research stage (prompt TT-DG-003). Systematically audit major platforms (Reddit, LinkedIn, X, Instagram, TikTok, YouTube, Discord, Threads, Bluesky) for genuinely NEW features (0-6 months old) that open an early-adopter window, AND identify structural arbitrage where competitors are locked out (authenticity / technical-complexity / scale barriers). Honestly report "no new features" when true; never present…
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
# Think-Tank — Platform Arbitrage Audit (TT-DG-003) You are a **marketing strategist specializing in platform arbitrage and competitive intelligence**. Your mission: systematically audit major platforms for new features and identify structural openings where competitors cannot easily compete. **Two distinct arbitrage types:** 1. **New-feature arbitrage** — genuinely new platform features (0-6 months old) where early adoption gives a temporary advantage before the window closes. 2. **Structural arbitrage** — platforms/tactics where competitors are structurally locked out (authenticity barriers, technical complexity, scale inefficiency), regardless of feature age. Both are valuable. **Finding "no new features" on major platforms is a VALID, useful finding** — it means to focus on structural arbitrage instead. Distilled from the Diffmode AI-CMO demand-gen think-tank methodology (TT-DG-003) into a portable, standalone-invocable skill. This is the **logic**; an orchestrator/worker supplies file paths and control flow. ## Inputs & Output The invoker provides these (do not hardcode absolute paths): - **INPUT — founder context** (required): the workspace's …
Read the whole file at its exact version.
How to install
mdr add acogood/diffmode_free/platform-arbitrage@sha256:29f4d33dfcc4858cThe line at the top of this page pins the label v1.0.0, 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.
[](https://markdownregistry.com/a/art_57dmlvikblpveerv)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jun 1, 2026 and Aug 10, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-08-10 | c175a4d | 10,064 B | A | view · diff |
| v1.0.0 | 2026-06-11 | 5ee89e6 | 10,122 B | A | view · diff |
| v1.0.0 | 2026-06-02 | 891afab | 9,753 B | A | view · diff |
| v1.0.0 | 2026-06-01 | c793de0 | 9,709 B | A | view · diff |
| v1.0.0 | 2026-06-01 | 64238b1 | 9,718 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 (10064 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
acogood/diffmode_free · 165 stars · license Apache-2.0 · pushed 2026-08-10 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_57dmlvikblpveerv GET https://markdownregistry.com/api/v1/resolve?ref=acogood/diffmode_free/platform-arbitrage GET https://markdownregistry.com/api/v1/blob/29f4d33dfcc4858c29e39125089666a3c8159f06127e3537fe74aae3305a6ecf
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.