File Batch ProcessingAvailable

Directory Fingerprint

Compares two live directories (local vs backup, old vs new release): matches files by relative path plus size and SHA-256, then reports content differences, files present on only one side, and an overall digest for each side. Top-level directory names may differ. Modification times are not part of the comparison. Useful for pre/post release checks, backup verification and delivery comparison.

Installdir-fingerprint-skill

Capabilities

Relative-path matching even when top-level names differ

Same / only-in-A / only-in-B / content-differs classification

Overall digest per side, usable as a sync gate

Exclude by directory name; system files skipped by default

Specifications

Use cases

Directory diffIntegrity

Roles

OpsLegal

Runtime

No third-party deps

Offline

Fully offline

Data boundary

Data stays local

Package

dir-fingerprint-skill

How to install

Skill packages follow the open Agent Skills standard (one directory plus a SKILL.md). No request or licence is needed. Pick whichever path matches your client, then just describe the task in chat to trigger it.

① Import the package

Recommended

Download the skill zip and load it from your client's "import / upload local skill package" entry. If SKILL.md sits at the top level of the archive, the package is well formed.

Download packageCurrent version v1.0.0

② Command line

For command-line clients that support the Agent Skills standard: one command syncs the skill into your local skills directory.

$npx skills add m9ai/m9ai-skills --skill dir-fingerprint-skill

Pass -a to name the client (claude-code, codex); omit it and you will be asked which one to use.

③ Unzip manually

You can also unzip the archive straight into your client's skills directory - no installer to run. The zip is self-contained and can be distributed offline, which makes it easy to host on an internal file server for company-wide rollout.

WorkBuddySettings → Skills directory (as shown in the client)

Claude Code (user level)~/.claude/skills/

Claude Code (project level).claude/skills/

Other clients supporting the Agent Skills standard work the same way: drop the skill directory into their skills folder.

Need this inside your own systems?

Ready-made skills cover generic scenarios. Internal data sources, private models and compliance requirements call for a tailored build.

See custom services