# Send Muscle Gain to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "muscle-gain",
    "name": "Muscle Gain",
    "source": "tencent",
    "type": "skill",
    "category": "效率提升",
    "sourceUrl": "https://clawhub.ai/jhillin8/muscle-gain",
    "canonicalUrl": "https://clawhub.ai/jhillin8/muscle-gain",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/muscle-gain",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=muscle-gain",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "SKILL.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-23T16:43:11.935Z",
      "expiresAt": "2026-04-30T16:43:11.935Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=4claw-imageboard",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=4claw-imageboard",
        "contentDisposition": "attachment; filename=\"4claw-imageboard-1.0.1.zip\"",
        "redirectLocation": null,
        "bodySnippet": null
      },
      "scope": "source",
      "summary": "Source download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this source.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/muscle-gain"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/muscle-gain",
    "downloadUrl": "https://openagent3.xyz/downloads/muscle-gain",
    "agentUrl": "https://openagent3.xyz/skills/muscle-gain/agent",
    "manifestUrl": "https://openagent3.xyz/skills/muscle-gain/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/muscle-gain/agent.md"
  }
}
```
## Documentation

### Muscle Gain

Build lean muscle with precision tracking of strength, nutrition, and body composition.

### What it does

The muscle-gain skill transforms your fitness journey into a data-driven process. Log body weight and measurements to track lean mass gains, monitor daily protein intake against personalized targets, and record strength progression across your key lifts. Automatically surfaces milestone achievements and flags underperformance to keep you accountable. Built for serious lifters, casual athletes, and anyone committed to measurable gains.

### Usage

Log measurements
Track body weight, chest, arms, shoulders, waist, and thighs weekly. Provides trend analysis to distinguish lean mass from water weight.

Track protein
Log meals and auto-calculate daily protein intake. Compares against your personalized target (0.7–1g per pound of body weight).

Check gains
View strength progression charts for squats, deadlifts, bench press, and other key lifts. See month-over-month and year-over-year trends.

Set targets
Define your bulk targets (body weight gain, protein intake, lift PRs) and get reminded when targets are within reach or falling behind.

Progress pics
Organize before/after photos and annotate with measurements and lift PRs from the same date for visual proof of progress.

### Key Metrics

Body weight - Daily logged weight
Measurements - Arms, chest, shoulders, waist, thighs, neck (weekly)
Strength lifts - Squat, deadlift, bench press, overhead press, barbell rows (log reps × weight)
Protein intake - Daily grams tracked against target
Caloric surplus - Optional integration with nutrition logging to track daily surplus
Progress photos - Timestamped images with metadata (date, weight, lift PRs)

### Tips

Weigh yourself daily, same time - Morning after bathroom, before food. Track the trend, not daily variance.


Protein first, everything else follows - Hit your protein target (0.8–1g per pound) before worrying about total calories. Lean mass gain demands protein surplus.


Log lifts immediately after sets - Record reps, weight, and RPE (rate of perceived exertion). Patterns in RPE reveal when you're underrecovering.


Measure weekly on the same day - Sunday morning works. Take measurements in identical conditions to avoid false positives from water retention or pump.


All data stays local on your machine - Your training logs, weight history, and progress photos are encrypted and stored offline. No cloud upload, no third-party access, full privacy.
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: jhillin8
- Version: 1.0.0
## Source health
- Status: healthy
- Source download looks usable.
- Yavira can redirect you to the upstream package for this source.
- Health scope: source
- Reason: direct_download_ok
- Checked at: 2026-04-23T16:43:11.935Z
- Expires at: 2026-04-30T16:43:11.935Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/muscle-gain)
- [Send to Agent page](https://openagent3.xyz/skills/muscle-gain/agent)
- [JSON manifest](https://openagent3.xyz/skills/muscle-gain/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/muscle-gain/agent.md)
- [Download page](https://openagent3.xyz/downloads/muscle-gain)