Getting it into your agent
There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.
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.
[](https://agentmods.dev/skills/thesongzhu/friday/largest-files-finder)<a href="https://agentmods.dev/skills/thesongzhu/friday/largest-files-finder"><img src="https://agentmods.dev/badge/skills/thesongzhu/friday/largest-files-finder/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.
<a href="https://agentmods.dev/skills/thesongzhu/friday/largest-files-finder"><img src="https://agentmods.dev/badge/skills/thesongzhu/friday/largest-files-finder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00424 |
| Opus 5 | $0.00000 | $0.00212 |
| Sonnet 5 | $0.00000 | $0.00085 |
| Haiku 4.5 | $0.00000 | $0.00042 |
Grade A, and why
largest-files-finder scanned grade A with 0 findings 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 11d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Largest Files Finder
List the top 3 largest files in a given directory
Overview
This skill analyzes a directory and returns the 3 largest files by size, providing both raw byte counts and human-readable size formatting.
Usage
Input
directory_path(string, required): The path to the directory to analyze
Output
largest_files(array): Array of up to 3 largest files, each containing:size: File size in bytespath: Full file pathsize_human: Human-readable size (e.g., "1.2MB")
Examples
Basic Usage
{
"directory_path": "/home/user/documents"
}
Expected Output
{
"largest_files": [
{
"size": 1048576,
"path": "/home/user/documents/large_file.pdf",
"size_human": "1.0MiB"
},
{
"size": 524288,
"path": "/home/user/documents/medium_file.docx",
"size_human": "512KiB"
},
{
"size": 262144,
"path": "/home/user/documents/small_file.txt",
"size_human": "256KiB"
}
]
}
Features
- Cross-platform compatibility (Linux, macOS, Windows)
- Human-readable file size formatting
- Handles directories with special characters in filenames
- Graceful error handling for inaccessible directories
- Recursive search through subdirectories
Error Handling
- Returns error if directory path is not provided
- Returns error if directory does not exist or is not accessible
- Skips files that cannot be accessed due to permissions
Technical Notes
- Uses
findcommand for cross-platform file discovery - Sorts files by size in descending order
- Limits results to top 3 largest files
- Provides both raw byte count and human-readable formatting
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 11d ago First seen · 72 lines · 0 tokens per session scan A c32c6dcffa31
largest-files-finder is a skill published in the GitHub repository thesongzhu/Friday (838 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 424 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
agent-self-scheduling
Schedule AI agent runs with cron, loops, or external clocks while avoiding unsafe tight autonomous timers.
security-compliance
Guides security professionals in implementing defense-in-depth security architectures, achieving compliance with industry frameworks (SOC2, ISO27001, GDPR, HIPAA), conducting threat modeling and risk assessments, managing security operations and incident response, and embedding security throughout the SDLC.
stride-analysis-patterns
Apply STRIDE methodology to systematically identify threats. Use when analyzing system security, conducting threat modeling sessions, or creating security documentation.
cache-components
Expert guidance for Next.js Cache Components and Partial Prerendering (PPR). PROACTIVE ACTIVATION: Use this skill automatically when working in Next.js projects that have cacheComponents: true in their next.config.ts/next.config.js. When this config is detected, proactively apply Cache Components patterns and best…
manage-skills
A maintenance workflow for checking whether project verification skills still cover the code and rules that changed during a session.
blind-spot-pass
Use before starting work in a domain you don't know well, to surface the "unknown unknowns" — the things you don't even know to ask about — and learn just enough to prompt and decide well. Implements the "blind spot pass" pattern from Anthropic's Fable "finding your unknowns" field guide. Triggers when you say "I'm…