Injury Prehab

Injury Prehab is a skill for Claude Code, Codex from SkillMedev/health-and-longevity. It costs 153 tokens per session (1,776 once invoked), scanned A, a copy of Injury Prehab, MIT.

A method for planning preventive exercises for shoulders, knees, lower back, and hips around a person's existing training. It specifies exercises, sets, repetitions, and when to do them during the week.

In plain words
What is it for?
Adding short pre-training routines to lifting, running, or sports programs, with adjustments for training schedule, equipment, available time, and previously troublesome areas.
Why use it?
It adds targeted resilience work when a body area feels weak, tight, or has caused problems before. It is for prevention, not for diagnosing or treating current pain.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Adding short pre-training routines to lifting, running, or sports programs, with adjustments for training schedule, equipment, available time, and previously troublesome areas.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/skillmedev/health-and-longevity/injury-prehab
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add SkillMedev/health-and-longevity --skill injury-prehab
Clone the repo
git clone --depth 1 https://github.com/SkillMedev/health-and-longevity

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Injury Prehab

README.md
[![agentmods](https://agentmods.dev/badge/skills/skillmedev/health-and-longevity/injury-prehab/github.svg)](https://agentmods.dev/skills/skillmedev/health-and-longevity/injury-prehab)
Your own site
<a href="https://agentmods.dev/skills/skillmedev/health-and-longevity/injury-prehab"><img src="https://agentmods.dev/badge/skills/skillmedev/health-and-longevity/injury-prehab/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Injury Prehab

Your own site · 80×15
<a href="https://agentmods.dev/skills/skillmedev/health-and-longevity/injury-prehab"><img src="https://agentmods.dev/badge/skills/skillmedev/health-and-longevity/injury-prehab.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 153 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,776 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00153 $0.01776
Opus 5 $0.00077 $0.00888
Sonnet 5 $0.00031 $0.00355
Haiku 4.5 $0.00015 $0.00178

Measured 12d ago against content hash 56ceff4185da, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

Injury Prehab scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **Lower back** (needs stability, not mobility - core endurance is the target): the McGill Big Three - curl-up (lumbar stays neutral; this is not a crunch), side plank, bird dog - 3 sets of 8-10 reps with 10-second hold
Origin

This is a copy

100% identical to Injury Prehab — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/injury-prehab/SKILL.md · 76 lines

How it starts

The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Injury Prehab

Most training injuries announce themselves weeks in advance - a cranky shoulder, a knee that aches on stairs - and the cheap fix is targeted resilience work done before failure, not rehab after it. This skill programs that work for the four zones where lifters and runners actually break: shoulders, knees, lower back, and hips. It prevents; it does not treat. Anything that already hurts belongs with a physiotherapist.

Operating procedure

Step 1: Gather inputs

Collect: the current training program (lifting split, running volume, sport) so prehab can attach to it; training days per week; the zones that feel tight, weak, or historically troublesome; any current pain or past injury (past injury means bias volume to that zone; current pain means stop - see Escalation); available equipment (bands cover 90% of prehab); and minutes willing to spend (default 10-15 before sessions). If the user cannot name a weak zone, treat all four as guesses and start with the balanced circuit.

Step 2: Screen before programming

Sharp pain, radiating pain, numbness or tingling, joint swelling or locking, or night pain disqualify a zone from prehab programming - those are physio referrals, not exercise-selection problems. Prehab loads are light, but loading an undiagnosed injury still makes it worse.

Step 3: Select the zone menus

  • Shoulders (the rotator cuff is the most common failure point): band or cable external rotation 3×15 at light load, face pulls 3×15-20, YTW raises 2×10-12, plus serratus anterior work (wall slides, scapular push-up plus) to protect mechanics under load. Run 2-3 days per week, ideally before pressing sessions. Structural rule: keep pulling volume equal to or greater than pressing volume across the week - chronic pressing dominance is how impingement develops.
  • Knees (most knee trouble originates in weak glutes and hips, not the knee): glute bridges or hip thrusts 3×15-20, lateral band walks 2×15 per side, terminal knee extensions with a band 3×15 per side; Spanish squats or sissy squats at slow tempo for the VMO; single-leg work (split squats, step-ups) to expose and correct side-to-side asymmetry - a rep or load gap above ~10% between sides is a flag to train the weak side first.
  • Lower back (needs stability, not mobility - core endurance is the target): the McGill Big Three - curl-up (lumbar stays neutral; this is not a crunch), side plank, bird dog - 3 sets of 8-10 reps with 10-second holds, progressing to timed sets. Pair with hip flexor mobility (couch stretch, 90/90) because tight hip flexors load the lumbar spine directly. Rule: no heavy spinal flexion under fatigue.
  • Hips (need both strength and range): Copenhagen plank for adductors, banded clamshells, single-leg RDL; mobility via 90/90 (internal and external rotation), deep squat holds with thoracic rotation, and hip flexor stretch with a posterior pelvic tilt. Five minutes daily on hips has outsized returns for lower-body longevity.

Read the full file on GitHub · 76 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 76 lines · 0 tokens per session scan A 56ceff4185da

Subscribe to this mod's changes

Injury Prehab is a skill published in the GitHub repository SkillMedev/health-and-longevity (1 stars, last pushed 2mo ago), licensed MIT. It adds 153 tokens to every session and 1,776 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 100% identical to Injury Prehab, differing in 0 lines, and is treated as a copy.

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