sherpa-onnx-tts

Local text-to-speech via sherpa-onnx (offline, no cloud)

1.51x

Quality

56%

Does it follow best practices?

Impact

100%

1.51x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./openclaw/skills/sherpa-onnx-tts/SKILL.md

Quality

Discovery

40%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description identifies a specific tool and its key differentiator (offline/local), which helps with distinctiveness. However, it lacks concrete action verbs describing what the skill does and completely omits trigger guidance for when Claude should use it, significantly limiting its effectiveness for skill selection.

Suggestions

Add a 'Use when...' clause with trigger terms like 'TTS', 'text to speech', 'read aloud', 'convert text to audio', 'speech synthesis', 'offline voice'

List specific actions the skill performs, e.g., 'Converts text to speech audio files, supports multiple voices and languages, generates WAV/MP3 output'

Include common user phrases that would indicate need for this skill, such as 'make this speak', 'audio version', or 'voice output'

Dimension	Reasoning	Score
Specificity	Names the domain (text-to-speech) and the tool (sherpa-onnx), and clarifies it's offline/local, but doesn't list specific actions like 'convert text to audio files', 'adjust voice parameters', or 'batch process documents'.	2 / 3
Completeness	Describes what it is (text-to-speech via sherpa-onnx) but completely lacks a 'Use when...' clause or any explicit trigger guidance for when Claude should select this skill.	1 / 3
Trigger Term Quality	Includes 'text-to-speech' which users might say, but misses common variations like 'TTS', 'speech synthesis', 'read aloud', 'convert to audio', or 'voice generation' that users would naturally use.	2 / 3
Distinctiveness Conflict Risk	The specific tool name 'sherpa-onnx' and the 'offline, no cloud' qualifier create a clear niche that distinguishes it from other potential TTS skills or cloud-based alternatives.	3 / 3
	Total	8 / 12 Passed

Implementation

72%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This is a reasonably well-structured skill that efficiently documents local TTS setup. Its main weakness is the vague installation instructions that don't specify download URLs or commands, and the lack of any verification step to confirm the setup works correctly.

Suggestions

Add specific download URLs or commands for obtaining the runtime and voice models (e.g., 'Download from https://... or run `curl -O ...`')

Add a verification step after installation, such as 'Test installation: `{baseDir}/bin/sherpa-onnx-tts -o /tmp/test.wav "test"` should produce a valid WAV file'

Dimension	Reasoning	Score
Conciseness	The content is lean and efficient, providing only essential setup and usage information without explaining what TTS is or how sherpa-onnx works internally. Every section serves a clear purpose.	3 / 3
Actionability	Provides concrete configuration and usage commands, but the install section is vague ('Download the runtime for your OS') without specifying where to download from or exact commands. The usage example is executable but setup steps lack specificity.	2 / 3
Workflow Clarity	Steps are listed in logical order (install runtime, download model, configure, use), but lacks validation checkpoints. No guidance on verifying the installation worked or troubleshooting if TTS fails.	2 / 3
Progressive Disclosure	For a simple single-purpose skill under 50 lines, the content is well-organized with clear sections (Install, Usage) and appropriate inline notes for edge cases. No need for external file references.	3 / 3
	Total	10 / 12 Passed

Validation

81%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 9 / 11 Passed

Validation for skill structure

Criteria	Description	Result
metadata_version	'metadata.version' is missing	Warning
metadata_field	'metadata' should map string keys to string values	Warning

	Total	9 / 11 Passed

Repository: trpc-group/trpc-agent-go
Commit: 50ef2f3

Reviewed: 5 days ago

Table of Contents

Discovery Implementation Validation

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