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Send Google Chat messages via incoming webhooks — text, rich cards (cardsV2), threaded replies. TypeScript types, card builder utility, widget reference inline.
Passed 23 of 23 test cases with the skill, and 18 of 23 without it.
and 3 more in the full report
5 fixed18 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
Create a decoratedText widget JSON for Google Chat displaying an address '123 Tech Lane', using a built-in location icon.
| Checked | Without skill | With skill |
|---|---|---|
| Sets knownIcon to MAP_PIN inside the startIcon object. | Missed | Passed |
The instructions your model reads when the skill loads.
Send messages to Google Chat spaces via incoming webhooks. Produces text messages, rich cards (cardsV2), and threaded replies.
In Google Chat:
Store the URL as an environment variable or in your secrets manager — never hardcode.
| Need | Type | Complexity |
|---|---|---|
| Simple notification | Text message | Low |
| Structured info (status, digest) | Card message (cardsV2) | Medium |
| Ongoing updates | Threaded replies | Medium |
| Action buttons (open URL) | Card with buttonList | Medium |
Use assets/webhook-sender.ts for the sender utility. Use assets/card-builder.ts for structured card construction.
Google Chat does NOT use standard Markdown.
| Format | Syntax | Example |
test cases passed, vs 18 / 23 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.