Function validate_skill_size 

pub async fn validate_skill_size(
    skill_path: &Path,
) -> Result<SkillDirectoryInfo>

Validate skill directory size and file count before installation.

This prevents malicious or accidentally large skills from consuming excessive disk space or inodes. Checks:

• File count ≤ MAX_SKILL_FILES (1000)
• Total size ≤ MAX_SKILL_SIZE_BYTES (100MB)
• No symlinks (security risk: could point to sensitive files)

Arguments

• skill_path - Path to the skill directory to validate

Returns

• Ok(SkillDirectoryInfo) - Skill passes all checks, returns collected info
• Err(anyhow::Error) - Skill exceeds limits or contains symlinks

Security

This function rejects symlinks to prevent:

• Data exfiltration (symlink to /etc/passwd, ~/.ssh/id_rsa)
• Path traversal attacks
• Unexpected behavior across platforms

Examples

use agpm_cli::skills::validate_skill_size;
use std::path::Path;

let info = validate_skill_size(Path::new("my-skill")).await?;
println!("Skill has {} files totaling {} bytes", info.files.len(), info.total_size);