023-assumption-analysis SKILL.md skillA
023-assumption-analysis from jabrena/plinth is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jabrena/plinth/023-assumption-analysis@v0.19.0Pins v0.19.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jabrena/plinth
- Path
skills/023-assumption-analysis/SKILL.md- Versions recorded
- 2
- Latest version
- v0.19.0, committed Sep 26, 2026
- First version recorded
- Aug 1, 2026
- Size
- 3,341 bytes
- Repository stars
- 461
- License
- Apache-2.0
Use when a framed and root-caused problem needs its assumptions made explicit before design or planning begins — explicit Assumptions, Unknowns, and a Validation plan. This should trigger when an issue's Assumption Analysis point of view needs evaluation, or when a maintainer directly asks to surface hidden assumptions and unknowns before committing to an approach. Part of Plinth Toolkit.
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
# Assumption Analysis Guide production of explicit Assumptions, a list of Unknowns, and a Validation plan for a problem under exploration. **This is an interactive SKILL**. **What is covered in this Skill?** - Surfacing assumptions implicit in the problem frame and root-cause findings - Distinguishing an assumption (believed true, not yet verified) from an unknown (not yet known either way) - Ranking assumptions and unknowns by impact and confidence - Defining a validation plan that names how and when each risky assumption or unknown will be checked - Feeding assumption and unknown findings into `024-context-mapping` and the remaining Functional Specification lenses ## Constraints Make assumptions and unknowns explicit before they become undiscussed risk. When this technique is orchestrated by another workflow, the orchestrator owns clarifying-question sequencing; when applied standalone, ask directly. - **MUST** read `references/023-assumption-analysis.md` before applying Assumption Analysis guidance - **MUST** state each assumption as a falsifiable claim believed true but not yet verified …
Read the whole file at its exact version.
How to install
mdr add jabrena/plinth/023-assumption-analysis@sha256:f56d2e1924b38e0eThe line at the top of this page pins the label v0.19.0, 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_7fs3fq7yfjwhcqjr)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Aug 1, 2026 and Sep 26, 2026, about one every 56 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.19.0 latest | 2026-09-26 | 9569c35 | 3,341 B | A | view · diff |
| v0.18.0 | 2026-08-01 | 26b0e71 | 3,341 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 (3341 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
jabrena/plinth · 461 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7fs3fq7yfjwhcqjr GET https://markdownregistry.com/api/v1/resolve?ref=jabrena/plinth/023-assumption-analysis GET https://markdownregistry.com/api/v1/blob/f56d2e1924b38e0ebd9dd1b8aec9e69463686da5d857dd9e5e7811d9c8bc00cf
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.