file-reading SKILL.md skillA
file-reading from razshy/wiggle is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add razshy/wiggle/file-reading@git:20260904.bb60abfPins git:20260904.bb60abf in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- razshy/wiggle
- Path
mnt-skills/public/file-reading/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260904.bb60abf, committed Sep 4, 2026
- Size
- 13,415 bytes
- Repository stars
- 100
- License
- a license file GitHub does not identify
Use this skill when a file has been uploaded but its content is NOT in your context — only its path at /mnt/user-data/uploads/ is listed in an uploaded_files block. This skill is a router: it tells you which tool to use for each file type (pdf, docx, xlsx, csv, json, images, archives, ebooks) so you read the right amount the right way instead of blindly running cat on a binary. Triggers: any mention of /mnt/user-data/uploads/, an uploaded_files section, a file_path tag, or a user asking about…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Reading Uploaded Files ## Why this skill exists When a user uploads a file in claude.ai, Claude Desktop, or Cowork, the file is written to `/mnt/user-data/uploads/<filename>` and you are told the path in an `<uploaded_files>` block. **The content is not in your context.** You must go read it. The naive thing — `cat /mnt/user-data/uploads/whatever` — is wrong for most files: - On a PDF it prints binary garbage. - On a 100MB CSV it floods your context with rows you will never use. - On a DOCX it prints the raw ZIP bytes. - On an image it does nothing useful at all. This skill tells you the right first move for each type, and when to hand off to a deeper skill. ## General protocol 1. **Look at the extension.** That is your dispatch key. 2. **Stat before you read.** Large files need sampling, not slurping. ```bash stat -c '%s bytes, %y' /mnt/user-data/uploads/report.pdf file /mnt/user-data/uploads/report.pdf ``` 3. **Read just enough to answer the user's question.** If they asked "how many rows are in this CSV", don't load the whole thing into pandas — `wc -l` gives a fast approximation (it counts newlines, …
Read the whole file at its exact version.
How to install
mdr add razshy/wiggle/file-reading@sha256:01ccda8f3014a319The line at the top of this page pins the label git:20260904.bb60abf, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_5fmucapujklkujsk)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 4, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13415 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
razshy/wiggle · 100 stars · license a license file GitHub does not identify · pushed 2026-09-05 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_5fmucapujklkujsk GET https://markdownregistry.com/api/v1/resolve?ref=razshy/wiggle/file-reading GET https://markdownregistry.com/api/v1/blob/01ccda8f3014a3199e9668cd862391db5c41500f1821e60f013812dedf4dec88
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.