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.
npx skills add mhattingpete/claude-skills-marketplace --skill file-operationsgit clone --depth 1 https://github.com/mhattingpete/claude-skills-marketplaceWrote 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/mhattingpete/claude-skills-marketplace/file-operations)<a href="https://agentmods.dev/skills/mhattingpete/claude-skills-marketplace/file-operations"><img src="https://agentmods.dev/badge/skills/mhattingpete/claude-skills-marketplace/file-operations/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/mhattingpete/claude-skills-marketplace/file-operations"><img src="https://agentmods.dev/badge/skills/mhattingpete/claude-skills-marketplace/file-operations.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00038 | $0.00673 |
| Opus 5 | $0.00019 | $0.00336 |
| Sonnet 5 | $0.00008 | $0.00135 |
| Haiku 4.5 | $0.00004 | $0.00067 |
Grade A, and why
file-operations 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 13d 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.
How it starts
The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
File Operations
Analyze files and retrieve metadata using Claude's native tools without modifying files.
When to Use
- "analyze [file]"
- "get file info for [file]"
- "how many lines in [file]"
- "compare [file1] and [file2]"
- "file statistics"
Core Operations
File Size & Metadata
stat -f "%z bytes, modified %Sm" [file_path] # Single file
ls -lh [directory] # Multiple files
du -h [file_path] # Human-readable size
Line Counts
wc -l [file_path] # Single file
wc -l [file1] [file2] # Multiple files
find [dir] -name "*.py" | xargs wc -l # Directory total
Content Analysis
Use Read to analyze structure, then count functions/classes/imports.
Pattern Search
Grep(pattern="^def ", output_mode="count", path="src/") # Count functions
Grep(pattern="TODO|FIXME", output_mode="content", -n=true) # Find TODOs
Grep(pattern="^import ", output_mode="count") # Count imports
Find Files
Glob(pattern="**/*.py")
Workflow Examples
Comprehensive File Analysis
- Get size/mod time:
stat -f "%z bytes, modified %Sm" file.py - Count lines:
wc -l file.py - Read file:
Read(file_path="file.py") - Count functions:
Grep(pattern="^def ", output_mode="count") - Count classes:
Grep(pattern="^class ", output_mode="count")
Compare File Sizes
- Find files:
Glob(pattern="src/**/*.py") - Get sizes:
ls -lh src/**/*.py - Total size:
du -sh src/*.py
Code Quality Metrics
- Total lines:
find . -name "*.py" | xargs wc -l - Test files:
find . -name "test_*.py" | wc -l - TODOs:
Grep(pattern="TODO|FIXME|HACK", output_mode="count")
Find Largest Files
find . -type f -not -path "./node_modules/*" -exec du -h {} + | sort -rh | head -20
Best Practices
- Non-destructive: Use Read/stat/wc, never modify
- Efficient: Read small files fully, use Grep for large files
- Context-aware: Compare to project averages, suggest optimizations
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.
- 13d ago First seen · 85 lines · 38 tokens per session scan A ded7e0f378f3
file-operations is a skill published in the GitHub repository mhattingpete/claude-skills-marketplace (671 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 38 tokens to every session and 673 once invoked, about $0.0002 per session on Opus 5. 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.
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