letta-ai/skills · tools/spreadsheet/SKILL.md

spreadsheet skillA

spreadsheet is agent-read markdown (skill) from letta-ai/skills: Use when tasks involve creating, editing, analyzing, or formatting spreadsheets (`.xlsx`, `.csv`, `.tsv`) with formula-aware workflows, cached recalculation, and visual review..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add letta-ai/skills/spreadsheet@git:20260422.d32735f
Exact content
mdr add letta-ai/skills/spreadsheet@sha256:395ca074b0b69155

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_eugbyj4u6vtji2rf.svg)](https://markdownregistry.com/a/art_eugbyj4u6vtji2rf)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260422.d32735f latest2026-04-22 d32735f 6,958 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (6958 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

GitHub

letta-ai/skills · 143 stars · license NOASSERTION · pushed 2026-09-13 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_eugbyj4u6vtji2rf
GET https://markdownregistry.com/api/v1/resolve?ref=letta-ai/skills/spreadsheet
GET https://markdownregistry.com/api/v1/blob/395ca074b0b69155eecaa892a85a6e332d08113e99ad3b7f8cbf7c6c69d8dfa8

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.