Memmy is a local memory hub that gives multiple AI agents one shared, persistent context about their user. It helps people continue work across agents such as Claude Code, Codex, OpenClaw, and Hermes Agent. The catalogue entries are skills for using Memmy with supported agents.
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 MemTensor/memmy-agent --skill xlsxgit clone --depth 1 https://github.com/MemTensor/memmy-agentWrote 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/memtensor/memmy-agent/xlsx)<a href="https://agentmods.dev/skills/memtensor/memmy-agent/xlsx"><img src="https://agentmods.dev/badge/skills/memtensor/memmy-agent/xlsx/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/memtensor/memmy-agent/xlsx"><img src="https://agentmods.dev/badge/skills/memtensor/memmy-agent/xlsx.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00035 | $0.00533 |
| Opus 5.5 | $0.00014 | $0.00213 |
| Sonnet 5.5 | $0.00007 | $0.00107 |
| Haiku 4.5 | $0.00003 | $0.00053 |
Grade A, and why
xlsx 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 25d 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
Workbook workflow
Trigger for .xlsx, .xlsm, .xltx, .csv, and .tsv workbooks or requests
to create, read, edit, clean, format, calculate, chart, or convert them. Do
not use it for ordinary documents, web pages, databases, or live external
spreadsheet APIs.
- Copy an existing workbook to a unique temporary directory and inspect it
with
scripts/inspect_workbook.mjs --input <file> --jsonbefore editing. - Preserve formulas, cached values, styles, merges, tables, filters, validations, conditional formatting, charts, images, shapes, comments, hidden sheets, links, macros, and metadata. Only modify the requested cells or objects.
- After adding or changing formulas run
scripts/recalculate_workbook.mjs --input <file> --output <file> --json. A completed recalculation with formula errors is reported aserrors_found; a conversion or process failure is a separate failure. - Run
scripts/check_workbook.mjs <file> --json; use--allow-lossyonly when the caller explicitly accepts the listed loss. The checker does not use PPTX or XSD data. - Render with
scripts/render_with_office.mjs <file> --output-dir <dir>and inspect every sheet/page. Reopen the output and verify formulas, cached values, objects, and that the original hash is unchanged.
CSV/TSV input requires an explicit encoding, BOM, delimiter, quote, newline, and malformed-row policy. Never replace formulas with constants unless a static export was requested. External links, macros, unsupported extensions, and objects that cannot be safely preserved fail closed.
All commands are standalone Node CLIs. They write stable JSON with --json,
diagnostics to stderr, and non-zero status for invalid input, missing Office,
timeout, or unsafe preservation. The bundled renderer is resolved through
MEMMY_OFFICE_RENDERING_ROOT, the legacy DOCX override during migration, the
packaged Office payload, and the source payload; it never silently falls back
to a system PATH installation.
See references/workbook-workflow.md, references/formula-recalculation.md,
and references/layout-and-preservation.md for the full SOP.
What ships with it
12 files 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.
- references/formula-recalculation.md 773 B
- references/layout-and-preservation.md 677 B
- references/workbook-workflow.md 809 B
- scripts/check_drawing_rules.mjs 5.3 KB runs code
- scripts/check_formula_rules.mjs 4.6 KB runs code
- scripts/check_layout_rules.mjs 3.4 KB runs code
- scripts/check_workbook.mjs 3.0 KB runs code
- scripts/inspect_workbook.mjs 5.2 KB runs code
- scripts/office/check_ooxml_package.mjs 5.8 KB runs code
- scripts/office/office_convert.mjs 5.7 KB runs code
- scripts/recalculate_workbook.mjs 6.1 KB runs code
- scripts/render_with_office.mjs 5.9 KB runs code
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.
- 25d ago First seen · 44 lines · 35 tokens per session scan A 158fbec92cd2
xlsx is a skill published in the GitHub repository MemTensor/memmy-agent (2,102 stars, last pushed yesterday), licensed MIT. It adds 35 tokens to every session and 533 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-21.
Other skills, from other repositories
xlsx
Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When GLM needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing…
xlsx
Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify…
Google Workspace
Handle Google Docs, Sheets, Drive, and related Workspace tasks through the narrowest available API or browser workflow.
browserwing-executor
Control browser automation through HTTP API. Supports page navigation, element interaction (click, type, select), data extraction, accessibility snapshot analysis, screenshot, JavaScript execution, and batch operations.
dev-browser
Browser automation with persistent page state. Use when users ask to navigate websites, fill forms, take screenshots, extract web data, test web apps, or automate browser workflows. Trigger phrases include "go to [url]", "click on", "fill out the form", "take a screenshot", "scrape", "automate", "test the website"…
ask-user-question
Ask users questions via the UI. Use when you need clarification, user preferences, or confirmation before proceeding. The user CANNOT see CLI output - this tool is the ONLY way to communicate with them.