The description identifies a specific technology (PubNub) and feature (presence tracking), giving it good distinctiveness. However, it lacks concrete action details beyond 'implement' and critically missing the 'Use when...' clause that would help Claude know when to select this skill over others.

Suggestions

Add a 'Use when...' clause with trigger terms like 'PubNub presence', 'online users', 'user status tracking', 'who's online', 'real-time activity'

Expand specific capabilities such as 'track online/offline status, monitor user activity, handle presence events, manage channel occupancy'

Include file type or context triggers like 'when working with PubNub SDK' or 'when building real-time collaborative features'

Dimension	Reasoning	Score
Specificity	Names the domain (real-time presence tracking) and the technology (PubNub), but only describes one action ('implement') without listing specific concrete capabilities like tracking user status, managing online/offline states, or handling presence events.	2 / 3
Completeness	Only addresses 'what' at a high level (implement presence tracking with PubNub) 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 'PubNub' and 'presence tracking' which are relevant keywords, but misses common variations users might say like 'online status', 'user activity', 'who's online', 'real-time users', or 'presence events'.	2 / 3
Distinctiveness Conflict Risk	The combination of 'PubNub' and 'presence tracking' creates a clear, specific niche that is unlikely to conflict with other skills. PubNub is a distinct technology with specific use cases.	3 / 3
	Total	8 / 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 solid, actionable guidance for PubNub presence implementation with executable code examples and good progressive disclosure to reference files. The main weaknesses are some unnecessary introductory content and missing validation steps in the workflow for verifying presence is functioning correctly.

Suggestions

Remove the 'You are a PubNub presence tracking specialist' framing and 'When to Use This Skill' section - Claude can infer appropriate usage from the content

Add a validation step to the workflow, such as 'Verify presence is working: call hereNow and confirm your UUID appears after subscribing'

Dimension	Reasoning	Score
Conciseness	The skill is mostly efficient but includes some unnecessary framing ('You are a PubNub presence tracking specialist') and the 'When to Use This Skill' section explains scenarios Claude could infer. The core technical content is appropriately lean.	2 / 3
Actionability	Provides fully executable JavaScript code examples for subscribing, handling events, and getting occupancy. Code is copy-paste ready with clear method calls and expected outputs shown in comments.	3 / 3
Workflow Clarity	The 6-step core workflow is listed but lacks explicit validation checkpoints. For presence tracking involving connection state management, there's no feedback loop for verifying presence is working correctly or handling failed subscriptions.	2 / 3
Progressive Disclosure	Clear structure with quick reference table pointing to one-level-deep reference files. Main content provides essential implementation details while appropriately deferring setup, events, and patterns to separate files.	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-presence

Reviewed

21 days ago

Table of Contents

Discovery Implementation Validation