CtrlK
BlogDocsLog inGet started
Tessl Logo

gws-chat-send

Google Chat: Send a message to a space.

Install with Tessl CLI

npx tessl i github:googleworkspace/cli --skill gws-chat-send
What are skills?

70

Does it follow best practices?

Validation for skill structure

SKILL.md
Review
Evals

Evaluation results

85%

20%

Automate Deployment Announcements to Google Chat

Correct send command syntax and flags

Criteria
Without context
With context

Uses gws chat +send

0%

100%

--space flag present

100%

100%

Correct space format

100%

100%

--text flag present

100%

100%

Plain text message

100%

100%

Confirmation before send

0%

0%

Correct space ID used

100%

100%

Without context: $0.6196 · 1m 56s · 37 turns · 168 in / 6,041 out tokens

With context: $0.3332 · 1m · 23 turns · 188 in / 3,102 out tokens

100%

28%

Send a Welcome Message to the Engineering Team Space

Space discovery before sending

Criteria
Without context
With context

Lists spaces first

100%

100%

Discovery used for space selection

100%

100%

Uses gws chat +send

0%

100%

--space flag with spaces/ format

46%

100%

--text flag for message

100%

100%

Workflow documented

100%

100%

Without context: $0.6096 · 2m 4s · 39 turns · 144 in / 6,165 out tokens

With context: $0.2106 · 46s · 16 turns · 18 in / 2,453 out tokens

100%

40%

Send a Structured Alert Card to Google Chat

Raw API for cards vs CLI for plain text

Criteria
Without context
With context

Does NOT use gws chat +send

100%

100%

Uses raw API approach

0%

100%

Card JSON structure

100%

100%

Targets correct space

100%

100%

approach.md explains trade-off

0%

100%

Without context: $0.7505 · 2m 42s · 49 turns · 1,398 in / 8,589 out tokens

With context: $0.3992 · 1m 48s · 20 turns · 221 in / 6,022 out tokens

Evaluated
Agent
Claude Code

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.