A command-line tool for reading and changing Google Sheets, Google’s online spreadsheets.

Reading cell values, adding rows, creating spreadsheets, and applying spreadsheet updates.

It lets an agent work with spreadsheet data through commands instead of requiring manual editing in a browser.

gws-sheets — Skill for Claude Code by WadeWarren

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/WadeWarren/gws-claude-plugin

agentmods

npx agentmods add skills/wadewarren/gws-claude-plugin/gws-sheets

Made for: Claude Code.

Or install gws, the plugin that ships this one along with the rest of its 58 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/wadewarren/gws-claude-plugin/gws-sheets/github.svg)](https://agentmods.dev/skills/wadewarren/gws-claude-plugin/gws-sheets)

Your own site

<a href="https://agentmods.dev/skills/wadewarren/gws-claude-plugin/gws-sheets"><img src="https://agentmods.dev/badge/skills/wadewarren/gws-claude-plugin/gws-sheets/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/wadewarren/gws-claude-plugin/gws-sheets"><img src="https://agentmods.dev/badge/skills/wadewarren/gws-claude-plugin/gws-sheets.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 624 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 94% copy Near-identical to another mod in the catalogue.

Token cost

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	$0.00013	$0.00624
Opus 5	$0.00006	$0.00312
Sonnet 5	$0.00003	$0.00125
Haiku 4.5	$0.00001	$0.00062

Measured 10d ago against content hash 31c92ae4b857, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

gws-sheets 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 10d 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.

Origin

This is a copy

94% identical to gws-sheets — 5 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/gws-sheets/SKILL.md · 54 lines

How it starts

The opening of the file, as written. The whole thing — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.

sheets (v4)

PREREQUISITE: Read ../gws-shared/SKILL.md for auth, global flags, and security rules. If missing, run gws generate-skills to create it.

gws sheets <resource> <method> [flags]

Helper Commands

Command	Description
`+append`	Append a row to a spreadsheet
`+read`	Read values from a spreadsheet

API Resources

spreadsheets

batchUpdate — Applies one or more updates to the spreadsheet. Each request is validated before being applied. If any request is not valid then the entire request will fail and nothing will be applied. Some requests have replies to give you some information about how they are applied. The replies will mirror the requests. For example, if you applied 4 updates and the 3rd one had a reply, then the response will have 2 empty replies, the actual reply, and another empty reply, in that order.
create — Creates a spreadsheet, returning the newly created spreadsheet.
get — Returns the spreadsheet at the given ID. The caller must specify the spreadsheet ID. By default, data within grids is not returned. You can include grid data in one of 2 ways: * Specify a field mask listing your desired fields using the fields URL parameter in HTTP * Set the includeGridData URL parameter to true.
getByDataFilter — Returns the spreadsheet at the given ID. The caller must specify the spreadsheet ID. For more information, see Read, write, and search metadata. This method differs from GetSpreadsheet in that it allows selecting which subsets of spreadsheet data to return by specifying a dataFilters parameter. Multiple DataFilters can be specified.
developerMetadata — Operations on the 'developerMetadata' resource
sheets — Operations on the 'sheets' resource
values — Operations on the 'values' resource

Read the full file on GitHub · 54 lines

Changes

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.

10d ago First seen · 54 lines · 13 tokens per session scan A 31c92ae4b857

Subscribe to this mod's changes

gws-sheets is a skill published in the GitHub repository WadeWarren/gws-claude-plugin (38 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 13 tokens to every session and 624 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to gws-sheets, differing in 5 lines, and is treated as a copy.

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