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gws-gmail-send

Gmail: Send an email.

Install with Tessl CLI

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

70

Does it follow best practices?

Validation for skill structure

SKILL.md
Review
Evals

Evaluation results

85%

15%

Deployment Notification Script

Correct gws gmail +send command syntax

Criteria
Without context
With context

Correct send command

0%

100%

--to flag present

100%

100%

--subject flag present

100%

100%

--body flag present

100%

100%

No manual base64 encoding

100%

100%

No manual RFC 2822 formatting

100%

100%

Confirmation before send

0%

0%

Recipient is parameterized

100%

100%

Subject is parameterized

100%

100%

No unsupported +send flags

100%

100%

Without context: $0.1972 · 43s · 13 turns · 59 in / 2,311 out tokens

With context: $0.3344 · 1m 3s · 23 turns · 277 in / 3,334 out tokens

82%

41%

Weekly Client Status Report Mailer

Raw API fallback for HTML, CC/BCC, and attachments

Criteria
Without context
With context

Uses raw API command

0%

100%

--json flag used

0%

100%

Does NOT use +send for HTML

100%

100%

HTML content in payload

0%

80%

CC recipient in payload

50%

70%

No manual base64 in script logic

100%

0%

To field in payload

60%

80%

Subject in payload

60%

80%

Without context: $0.1882 · 45s · 14 turns · 20 in / 2,453 out tokens

With context: $0.2958 · 1m 13s · 19 turns · 182 in / 4,069 out tokens

51%

-34%

Customer Ticket Resolution Emailer

User confirmation before write command execution

Criteria
Without context
With context

Confirmation before send

100%

0%

Correct send command

0%

100%

--to flag present

100%

100%

--subject flag present

100%

100%

--body flag present

100%

100%

Recipient shown before confirm

100%

0%

Abort on refusal

100%

0%

No auto-confirm bypass

100%

100%

Without context: $0.1725 · 54s · 14 turns · 59 in / 3,011 out tokens

With context: $0.2635 · 44s · 17 turns · 54 in / 2,218 out tokens

Evaluated
Agent
Claude Code

Table of Contents

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