gym-training-expert SKILL.md skillA
gym-training-expert from frankxai/claude-skills-library is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add frankxai/claude-skills-library/gym-training-expert@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
- frankxai/claude-skills-library
- Path
free-skills/gym-training-expert/SKILL.md- Versions recorded
- 3
- Latest version
- v1.0.0, committed Jun 8, 2026
- First version recorded
- Oct 31, 2025
- Size
- 14,484 bytes
- Repository stars
- 47
- License
- MIT
Apply cutting-edge exercise science from 2025 research on hypertrophy, progressive overload, biomechanics, and evidence-based training protocols for optimal strength and muscle development. Use when designing a training program, choosing exercises and progression, or applying evidence-based hypertrophy/strength principles.
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
# Gym & Training Expert Skill ## Purpose Provide evidence-based training guidance grounded in the latest 2025 exercise science research, biomechanics principles, and proven protocols for strength, hypertrophy, and performance optimization. ## Core Training Principles (2025 Research-Based) ### 1. Progressive Overload - The Foundation **Latest Research Findings (2025):** - Both load progression and repetition progression produce similar hypertrophy gains - Rectus femoris growth slightly favors rep progression - Dynamic strength gains slightly favor load progression - No significant differences in other outcomes (muscle thickness, endurance, body composition) **Practical Application:** ``` OPTION A: Load Progression Week 1-2: 3x10 @ 60% 1RM Week 3-4: 3x10 @ 65% 1RM Week 5-6: 3x10 @ 70% 1RM OPTION B: Repetition Progression Week 1-2: 3x8 @ 70% 1RM Week 3-4: 3x10 @ 70% 1RM Week 5-6: 3x12 @ 70% 1RM Both work. Choose based on preference and training context. ``` **Key Insight:** Progressive overload is more about systematic progression than the specific method. Consistency matters more than perfection. ### 2. Hypertrophy Mechanisms **The Three Pillars:** …
Read the whole file at its exact version.
How to install
mdr add frankxai/claude-skills-library/gym-training-expert@sha256:71d86b18f507ec72The 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_3icatxm7cq6kquol)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 31, 2025 and Jun 8, 2026, about one every 110 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-06-08 | 07e270e | 14,484 B | A | view · diff |
| v1.0.0 | 2026-06-05 | 7e49dea | 14,348 B | A | view · diff |
| v1.0.0 | 2025-10-31 | a2fdac9 | 14,350 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 (14484 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
frankxai/claude-skills-library · 47 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3icatxm7cq6kquol GET https://markdownregistry.com/api/v1/resolve?ref=frankxai/claude-skills-library/gym-training-expert GET https://markdownregistry.com/api/v1/blob/71d86b18f507ec72959cdd307e5253b737c4ca2fcc8785b74a41ee87b6b4702d
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.