writing-lean-proofs SKILL.md skillA
writing-lean-proofs 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/writing-lean-proofs@git:20260905.f02db66Pins git:20260905.f02db66 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-formal/skills/writing-lean-proofs/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260905.f02db66, committed Sep 5, 2026
- Size
- 6,638 bytes
- Repository stars
- 40
- License
- Apache-2.0
Use when asked to design, write, review, refactor, lint, or performance-diagnose Lean 4 proofs, libraries, or tactics. Not for non-Lean code or changes outside source, API, proof, or linter scope.
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
# Writing Lean proofs ## Contract | Field | Bound contract | |---|---| | Trigger | The task is to design, write, review, refactor, lint, or performance-diagnose Lean 4 proofs, libraries, or tactic extensions under Mathlib conventions. | | Authority | Reversible local: writes only Lean source files, library API, proof structure, and project linter configuration, plus scoped mechanical Lean checks; rollback is version control. No remote mutation. | | Side effect | Local writes to Lean source, library API, proof structure, project linter configuration, and scoped mechanical Lean checks. No remote mutation, credential change, paid action, or deployment. | | Done | The requested Lean declarations have stable statements and structured proofs, compile under the project toolchain, and satisfy the selected axiom and linter policy. | ## Inputs …
Read the whole file at its exact version.
How to install
mdr add outlinedriven/odin-claude-plugin/writing-lean-proofs@sha256:e649501f2413c584The line at the top of this page pins the label git:20260905.f02db66, 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_7ivgxuvdehchjxsj)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 5, 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 (6638 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_7ivgxuvdehchjxsj GET https://markdownregistry.com/api/v1/resolve?ref=outlinedriven/odin-claude-plugin/writing-lean-proofs GET https://markdownregistry.com/api/v1/blob/e649501f2413c584c00afc91053a92a7e70a78f3ef8e8bca8bdabf3b90e04175
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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