The description identifies a clear domain (stock/market data via PubNub) but is too brief to be effective for skill selection. It lacks explicit trigger guidance ('Use when...'), comprehensive action verbs, and natural keyword variations that users would actually say when needing this functionality.

Suggestions

Add a 'Use when...' clause with explicit triggers like 'Use when the user asks for stock prices, ticker symbols, real-time market data, or mentions PubNub streaming'

Expand specific actions beyond 'deliver' to include concrete capabilities like 'fetch real-time quotes', 'stream live prices', 'subscribe to ticker updates', 'display market trends'

Include more natural trigger terms users would say: 'stock price', 'ticker', 'shares', 'trading data', 'live quotes', 'financial streaming'

Dimension	Reasoning	Score
Specificity	Names the domain (stock quotes, market data) and implies an action (deliver), but lacks comprehensive concrete actions like 'fetch quotes', 'stream prices', 'subscribe to tickers', or 'display historical data'.	2 / 3
Completeness	Describes what it does (deliver stock quotes/market data) 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 relevant keywords like 'stock quotes', 'market data', and 'PubNub', but misses common variations users might say such as 'ticker', 'share price', 'stocks', 'trading', 'financial data', or 'live prices'.	2 / 3
Distinctiveness Conflict Risk	The mention of 'PubNub' adds some distinctiveness, and 'stock quotes' is fairly specific, but 'market data' is broad enough to potentially overlap with other financial or data streaming skills.	2 / 3
	Total	7 / 12 Passed

Implementation

73%

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

This skill provides strong actionable guidance with executable code examples covering the main use cases for stock quote streaming with PubNub. The progressive disclosure is well-organized with clear references. However, it could be more concise by removing the persona framing and 'When to Use' section, and the workflow lacks explicit validation/error handling steps for a domain where data integrity matters.

Suggestions

Remove the persona introduction and 'When to Use This Skill' section - Claude can infer appropriate usage from the content itself

Add validation checkpoints to the Core Workflow, such as verifying subscription success, handling connection failures, and confirming quote delivery

Include error handling in code examples showing how to detect and recover from failed publishes or stale connections

Dimension	Reasoning	Score
Conciseness	The skill includes some unnecessary framing ('You are a PubNub real-time stock quote specialist') and the 'When to Use This Skill' section explains scenarios Claude can infer. However, the code examples are reasonably lean and the constraints section is efficient.	2 / 3
Actionability	Provides fully executable JavaScript code examples for broadcasting quotes, subscribing to watchlists, and implementing price alerts with PubNub Functions. Code is copy-paste ready with realistic payloads and proper SDK usage.	3 / 3
Workflow Clarity	The 'Core Workflow' section lists steps but lacks validation checkpoints. For operations involving market data distribution and alert systems, there's no explicit error handling, retry logic, or verification steps to confirm quotes are being received correctly.	2 / 3
Progressive Disclosure	Well-structured with a clear reference table pointing to three separate files for setup, portfolio management, and patterns. The main skill provides working examples while deferring detailed topics appropriately with one-level-deep references.	3 / 3
	Total	10 / 12 Passed

Validation

94%

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 — 15 / 16 Passed

Validation for skill structure

Criteria	Description	Result
description_trigger_hint	Description may be missing an explicit 'when to use' trigger hint (e.g., 'Use when...')	Warning

	Total	15 / 16 Passed

Install with Tessl CLI

npx tessl i pubnub/pubnub-live-stock-quote-updates

Reviewed

23 days ago

Table of Contents

Discovery Implementation Validation