think-assumption-reversal SKILL.md skillA
think-assumption-reversal from product-on-purpose/thinking-framework-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add product-on-purpose/thinking-framework-skills/think-assumption-reversal@v0.1.0Pins v0.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- product-on-purpose/thinking-framework-skills
- Path
skills/think-assumption-reversal/SKILL.md- Versions recorded
- 1
- Latest version
- v0.1.0, committed Jun 1, 2026
- Size
- 3,554 bytes
- Repository stars
- 21
- License
- Apache-2.0
Generates non-obvious ideas by surfacing the foundational assumptions a problem or solution rests on, negating each, and reframing from the reversed assumptions, then shortlisting, producing an assumptions-and-reversals sheet. Use when an option space feels stuck inside default constraints, or when you need to expose premises that are taken for granted.
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
<!-- thinking-framework-skills | https://github.com/product-on-purpose/thinking-framework-skills | Apache-2.0 -->
# Assumption Reversal
Solutions stay trapped inside the assumptions a problem is stated with. Assumption reversal makes those premises explicit, negates or reverses each, and generates ideas from the reversed world. It is not generic inversion ("how would we cause failure?"); it targets the foundational premises the option space rests on and uses their reversal as an idea generator. The output is an **assumptions-and-reversals sheet** ending in a shortlist. Reversed assumptions are candidates to explore, not recommendations.
## When to Use
- An option space feels stuck inside default constraints.
- The obvious solutions all seem to share a hidden premise.
- Early divergent exploration, when breadth matters more than convergence.
## When NOT to Use
- When the binding constraints are genuinely fixed (regulatory, physical) and cannot be reversed in reality.
- When you need to converge and choose (use a decision skill).
- As a source of recommendations (it produces candidates, not decisions).
- If it would only reverse trivial, cosmetic assumptions.
## Instructions
…Read the whole file at its exact version.
How to install
mdr add product-on-purpose/thinking-framework-skills/think-assumption-reversal@sha256:754e32a38d52e4e9The 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.
[](https://markdownregistry.com/a/art_y37plod2tsatizgn)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 1, 2026.
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 (3554 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
product-on-purpose/thinking-framework-skills · 21 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_y37plod2tsatizgn GET https://markdownregistry.com/api/v1/resolve?ref=product-on-purpose/thinking-framework-skills/think-assumption-reversal GET https://markdownregistry.com/api/v1/blob/754e32a38d52e4e9ad651ca4861efbc11f8be7b0711156ac57cef492f6ecd532
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.