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/aidotnet/moyucode/file-hasher)<a href="https://agentmods.dev/skills/aidotnet/moyucode/file-hasher"><img src="https://agentmods.dev/badge/skills/aidotnet/moyucode/file-hasher.svg" alt="Measured on agentmods" 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 | $0.00029 | $0.00250 |
| Opus 5 | $0.00015 | $0.00125 |
| Sonnet 5 | $0.00006 | $0.00050 |
| Haiku 4.5 | $0.00003 | $0.00025 |
Grade A, and why
file-hasher 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 6d 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
File Hasher Tool
Description
Calculate cryptographic hashes for files to verify integrity, detect duplicates, or generate checksums.
Trigger
/hashcommand- User needs file checksums
- User wants to verify file integrity
Usage
# Calculate SHA256 hash
python scripts/file_hasher.py file.zip
# Calculate multiple hash types
python scripts/file_hasher.py file.zip --all
# Verify against known hash
python scripts/file_hasher.py file.zip --verify abc123...
# Hash multiple files
python scripts/file_hasher.py *.zip --algorithm sha256
# Find duplicate files
python scripts/file_hasher.py --find-duplicates ./folder/
Tags
hash, checksum, md5, sha256, integrity
Compatibility
- Codex: ✅
- Claude Code: ✅
What ships with it
1 file 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.
- 6d ago First seen · 46 lines · 29 tokens per session scan A 392a72bb4293
file-hasher is a skill published in the GitHub repository AIDotNet/MoYuCode (84 stars, last pushed 7mo ago), licensed MIT. It adds 29 tokens to every session and 250 once invoked, about $0.0001 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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