universal-invariant-baseline SKILL.md skillA
universal-invariant-baseline from outlinedriven/odin-claude-plugin is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add outlinedriven/odin-claude-plugin/universal-invariant-baseline@git:20260912.6e06ed3Pins git:20260912.6e06ed3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- outlinedriven/odin-claude-plugin
- Path
plugins/odin-code/skills/universal-invariant-baseline/SKILL.md- Versions recorded
- 6
- Latest version
- git:20260912.6e06ed3, committed Sep 12, 2026
- First version recorded
- Aug 31, 2026
- Size
- 4,015 bytes
- Repository stars
- 40
- License
- Apache-2.0
Use when invoked to apply an invariant-first, fail-fast, special-case-eliminating baseline. Not for domain models in types: use type-driven. Not for design-by-contract: use contract-driven.
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
# Universal invariant baseline ## Contract | Field | Bound contract | |---|---| | Trigger | User explicitly requests an invariant-first, fail-fast, special-case-eliminating baseline for a named implementation. | | Authority | Reversible local: writes only the named local artifact; rollback is version control (restore) or undo (file deletion). No remote mutation. | | Side effect | Replace the target local file with its invariant-first, fail-fast, special-case-eliminating refinement. | | Done | All named invariant checks pass and no unresolved special-case artifacts remain. | ## Inputs Required: - `TARGET`: path to the local source file or module to baseline. - `LANGUAGE`: the target's language (e.g., `python`, `rust`, `typescript`). Required to select correct invariant patterns. ## Procedure 1. **Validate the request.** Confirm `TARGET` is a concrete, scoped implementation task with a named local path. If `TARGET` is absent, empty, or points to a non-local artifact, raise `BLOCKED-INPUT` and stop. **Done when:** `TARGET` is confirmed as a concrete local path. …
Read the whole file at its exact version.
How to install
mdr add outlinedriven/odin-claude-plugin/universal-invariant-baseline@sha256:4b9ef85d941629adThe line at the top of this page pins the label git:20260912.6e06ed3, 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_3gppgkbtqwkr4pwy)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Aug 31, 2026 and Sep 12, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260912.6e06ed3 latest | 2026-09-12 | 6e06ed3 | 4,015 B | A | view · diff |
| git:20260904.2014e73 | 2026-09-04 | 2014e73 | 3,984 B | A | view · diff |
| git:20260903.31c840c | 2026-09-03 | 31c840c | 4,040 B | A | view · diff |
| git:20260903.c54504d | 2026-09-03 | c54504d | 4,003 B | A | view · diff |
| git:20260831.f5a6817 | 2026-08-31 | f5a6817 | 4,006 B | A | view · diff |
| git:20260831.7bbed6d | 2026-08-31 | 7bbed6d | 3,793 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 (4015 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
outlinedriven/odin-claude-plugin · 40 stars · license Apache-2.0 · pushed 2026-09-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3gppgkbtqwkr4pwy GET https://markdownregistry.com/api/v1/resolve?ref=outlinedriven/odin-claude-plugin/universal-invariant-baseline GET https://markdownregistry.com/api/v1/blob/4b9ef85d941629ad0c8d451eb2febc216e89c402a580526b40584c5c6f27fc1f
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.