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platform-cli

Design and implementation patterns for building command-line tools with modern UX. Use when designing a CLI, reviewing CLI UX, defining commands and flags, or implementing error handling and signal handling.

86

1.15x
Quality

81%

Does it follow best practices?

Impact

96%

1.15x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Evaluation results

94%

4%

Container Workload Manager CLI Design

Command and flag naming conventions

Criteria
Without context
With context

Lowercase binary name

100%

100%

Short binary name

100%

100%

Dashes for multi-word

100%

100%

Consistent subcommand pattern

100%

100%

Help flag present

100%

100%

Version flag capital V

0%

100%

Standard verbose/quiet names

100%

100%

Standard force/dry-run names

100%

100%

Short flags limited

100%

25%

Short flag consistency

100%

100%

Non-interactive flag

100%

100%

Design rationale documented

100%

100%

94%

2%

Log Aggregator CLI Tool

Error handling and output stream separation

Criteria
Without context
With context

Data to stdout only

100%

100%

Progress to stderr

100%

100%

Errors to stderr

100%

100%

Error explains what

100%

100%

Error explains why

100%

100%

Error provides fix

75%

100%

Specific error details

100%

100%

No stack traces by default

100%

100%

Debug flag for traces

75%

87%

Pipe usage documented

100%

100%

Important info last

60%

50%

100%

33%

Data Sync CLI Tool

Config precedence, secrets handling, and signal management

Criteria
Without context
With context

Flags beat env vars

100%

100%

Env vars beat config file

100%

100%

Project config location

50%

100%

User config XDG path

100%

100%

No secret from env var

100%

100%

Secret via file flag

100%

100%

Secret via stdin flag

0%

100%

Non-secret via env var OK

100%

100%

SIGINT immediate acknowledgment

100%

100%

Cleanup timeout bounded

62%

100%

Double Ctrl-C force exit

0%

100%

Exit code 130

0%

100%

Crash-only safe state

37%

100%

Repository
ravnhq/ai-toolkit
Evaluated
Agent
Claude Code
Model
Claude Sonnet 4.6

Table of Contents

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