imsg

iMessage/SMS CLI for listing chats, reading message history, watching for new messages, and sending messages. Triggers on: check messages, read imessage, send text, imsg, message history, sms, who texted me.

2.63x

Quality

100%

Does it follow best practices?

Impact

100%

2.63x

Average score across 3 eval scenarios

Securityby

Low

Low-risk findings worth noting

Quality

Content

100%Weight 40%Scale 1-3

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

A lean, well-sectioned reference for a single CLI: executable examples for every subcommand, an explicit confirm-before-send checkpoint, and operational caveats (optimistic "sent", Full Disk Access) that Claude could not infer. No bundle files exist, so the self-contained structure is appropriate.

Dimension	Reasoning	Score
Conciseness	The body never explains what iMessage is or how a CLI works; every section (Setup, Delivery Notes, Safety) conveys operational knowledge Claude would not already have, so each token earns its place.	3 / 3
Actionability	Each subcommand is shown as a copy-paste-ready invocation, and `send` is illustrated with email, phone, and file-attachment variants, leaving no key detail implicit.	3 / 3
Workflow Clarity	The Safety section sequences read-only operations first ("use chats and history before sending") and provides an explicit checkpoint ("Always confirm recipient and message text before imsg send") ahead of the risky send action.	3 / 3
Progressive Disclosure	The skill is compact and self-contained with no bundle files, organized into clearly labeled sections and no nested references, matching the simple-skill allowance for a 3.	3 / 3
	Total	12 / 12 Passed

Description

100%Weight 40%Scale 1-3

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

A tight, third-person description that names concrete capabilities and supplies an explicit trigger clause of natural user phrasings. It hits the top anchor on every dimension with no padding.

Dimension	Reasoning	Score
Specificity	"for listing chats, reading message history, watching for new messages, and sending messages" enumerates four distinct concrete actions rather than vague abstractions.	3 / 3
Completeness	It states both what the skill does (the CLI's four capabilities) and when to use it via an explicit "Triggers on:" clause, satisfying the what-and-when requirement.	3 / 3
Trigger Term Quality	"Triggers on: check messages, read imessage, send text, imsg, message history, sms, who texted me" covers natural phrasings a user would actually say, including the colloquial "who texted me".	3 / 3
Distinctiveness Conflict Risk	The iMessage/SMS niche plus the distinctive "imsg" trigger term make it unlikely to collide with other skills.	3 / 3
	Total	12 / 12 Passed

Validation

93%

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
frontmatter_unknown_keys	Unknown frontmatter key(s) found; consider removing or moving to metadata	Warning

	Total	15 / 16 Passed

Repository: joelhooks/joelclaw
Path: skills/imsg/SKILL.md
Commit: 979b138

Reviewed: 10 days ago

Table of Contents

Discovery Implementation Validation

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