iii-channels
Binary streaming between workers via channels. Use when building data pipelines, file transfers, streaming responses, or any pattern requiring binary data transfer between functions.
60
70%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/iii-channels/SKILL.mdQuality
Discovery
89%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This is a solid skill description that clearly communicates its niche (binary streaming between workers via channels) and provides explicit trigger guidance with a 'Use when...' clause covering multiple relevant scenarios. The main weakness is that the 'what' portion could be more specific about the concrete actions the skill teaches (e.g., creating channels, chunking data, connecting producers/consumers) rather than just naming the general pattern.
Suggestions
Add more specific concrete actions to the first clause, e.g., 'Creates binary streaming channels between workers, manages chunked data transfer, and handles backpressure' to improve specificity.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (binary streaming between workers via channels) and some actions/patterns (data pipelines, file transfers, streaming responses), but doesn't list multiple concrete specific actions like 'create channels', 'chunk binary data', or 'connect producer/consumer workers'. | 2 / 3 |
Completeness | Clearly answers both 'what' (binary streaming between workers via channels) and 'when' with an explicit 'Use when...' clause listing specific trigger scenarios (data pipelines, file transfers, streaming responses, binary data transfer between functions). | 3 / 3 |
Trigger Term Quality | Includes strong natural keywords users would say: 'binary', 'streaming', 'workers', 'channels', 'data pipelines', 'file transfers', 'streaming responses', 'binary data transfer'. Good coverage of terms a developer would naturally use. | 3 / 3 |
Distinctiveness Conflict Risk | The combination of 'binary streaming', 'workers', and 'channels' creates a very specific niche that is unlikely to conflict with other skills. The description targets a narrow concurrency/data-transfer pattern. | 3 / 3 |
Total | 11 / 12 Passed |
Implementation
50%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill provides a reasonable overview of the channels pattern with API references across multiple languages and clear pattern boundaries. However, it suffers from redundancy between sections (primitives table, language APIs, and common patterns all cover similar ground), lacks a complete executable end-to-end example inline, and misses explicit workflow sequencing with validation steps for what is a multi-step streaming operation.
Suggestions
Add one complete, minimal end-to-end example inline showing channel creation, passing a ref to another worker, writing data, and reading it — this would significantly improve actionability.
Consolidate the 'Primitives Used', 'Language-Specific APIs', and 'Common Patterns' sections to eliminate redundancy — consider a single API reference section with language variants.
Add explicit error handling and validation guidance (e.g., what happens if the reader disconnects, how to verify data integrity) to improve workflow clarity.
Remove the generic 'When to Use' and 'Boundaries' boilerplate sections at the end, as they add no channel-specific value.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is mostly efficient but has some redundancy — the 'Common Patterns' section largely repeats the API primitives table and language-specific APIs. The 'When to Use' and 'Boundaries' sections at the end are generic boilerplate that adds little value. Some explanatory text like 'Use the concepts below when they fit the task' is unnecessary filler. | 2 / 3 |
Actionability | The skill provides API signatures and common code snippets inline, but they are fragments rather than complete executable examples. The reference implementations are delegated to external files, and since no bundle files were provided, the actual executable code is not accessible. The 'Common Patterns' section shows useful snippets but lacks a complete end-to-end example showing channel creation, writing, and reading. | 2 / 3 |
Workflow Clarity | The Architecture section describes the flow conceptually (create channel → pass ref → stream data), and Common Patterns lists steps, but there's no explicit numbered workflow with validation checkpoints. For a pattern involving binary streaming between workers, there should be clearer sequencing around connection establishment, error handling, and verifying data was received correctly. | 2 / 3 |
Progressive Disclosure | The skill references external files (channels.js, channels.py, channels.rs) for detailed implementations, which is good progressive disclosure structure. However, no bundle files were provided, so these references cannot be verified. The main file itself has some content that could be consolidated — the API table, language-specific APIs, and common patterns sections overlap significantly and could be better organized. | 2 / 3 |
Total | 8 / 12 Passed |
Validation
100%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
- Repository
- iii-hq/iii
- Commit
a7ebbbb
- Reviewed
Table of Contents
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