A reference guide for building interactive Google Chat cards, which are message panels with text, buttons, images, and other components.

Use it to compose Google Chat cards with the Google Workspace MCP server, including their layout, settings, and Jinja-based text filters.

It helps you choose valid card components and arrange them correctly without searching through separate documentation.

gchat-cards — Skill for Claude Code by dipseth: A reference guide for building interactive Google Chat cards…

Install

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.

agentmods

npx agentmods add skills/dipseth/google_workspace_fastmcp2/gchat-cards

Any agent

npx skills add dipseth/google_workspace_fastmcp2 --skill gchat-cards

Clone the repo

git clone --depth 1 https://github.com/dipseth/google_workspace_fastmcp2

Made for: Claude Code.

Or install google-workspace-unlimited, the plugin that ships this one along with the rest of its 3 skills, 1 MCP server.

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/dipseth/google_workspace_fastmcp2/gchat-cards.svg)](https://agentmods.dev/skills/dipseth/google_workspace_fastmcp2/gchat-cards)

Your own site

<a href="https://agentmods.dev/skills/dipseth/google_workspace_fastmcp2/gchat-cards"><img src="https://agentmods.dev/badge/skills/dipseth/google_workspace_fastmcp2/gchat-cards.svg" alt="Measured on agentmods" height="20"></a>

Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 151 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found 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	$0.00033	$0.00151
Opus 5	$0.00016	$0.00076
Sonnet 5	$0.00007	$0.00030
Haiku 4.5	$0.00003	$0.00015

Measured 6d ago against content hash 45eaba5fd76b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

gchat-cards 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 6d 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.

plugins/google-workspace-unlimited/skills/gchat-cards/SKILL.md · 20 lines

What it actually says

Google Chat Card Builder

Quick Start

This skill provides documentation for the card_framework module.

Available Resources

symbols.md - Complete symbol reference table
containment-rules.md - What components can contain what
dsl-syntax.md - Custom guide: dsl-syntax
card-params.md - Custom guide: card-params
jinja-filters.md - Custom guide: jinja-filters
components/ - Per-component documentation (402 components)

Files

What ships with it

60 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.

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.

6d ago First seen · 20 lines · 33 tokens per session scan A 45eaba5fd76b

Subscribe to this mod's changes

gchat-cards is a skill published in the GitHub repository dipseth/google_workspace_fastmcp2 (25 stars, last pushed 2d ago), licensed Apache-2.0. It adds 33 tokens to every session and 151 once invoked, about $0.0002 per session on Opus 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 2026-08-30.

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16:9 HTML deck in tactical-telemetry / CRT-terminal taste. Deactivated-CRT charcoal slides, white-phosphor monospace, hazard-red accent, scanline overlay, ASCII syntax, density over decoration. Distilled from Leonxlnx/taste-skill brutalist-skill (Tactical Telemetry mode).

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gchat-cards