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imsg

iMessage/SMS CLI for listing chats, history, and sending messages via Messages.app.

86

1.81x
Quality

83%

Does it follow best practices?

Impact

96%

1.81x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Quality

Content

100%

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

This is a well-crafted skill that efficiently teaches Claude how to use the imsg CLI. It excels at disambiguation (when to use vs. not use), provides fully executable commands with realistic examples, and includes appropriate safety guardrails with a confirmation workflow before sending messages. The content is concise without sacrificing clarity.

DimensionReasoningScore

Conciseness

The skill is lean and efficient. It doesn't explain what iMessage is or how Messages.app works. Every section serves a clear purpose — routing decisions, commands, safety rules. The 'When NOT to Use' section is valuable for disambiguation and not filler.

3 / 3

Actionability

All commands are concrete, copy-paste ready with real flags and arguments. The example workflow shows a complete end-to-end process with actual CLI commands and jq filtering. Service options are specific and complete.

3 / 3

Workflow Clarity

The example workflow clearly sequences the steps: find contact → confirm with user → send after confirmation. Safety rules include explicit validation checkpoints (confirm recipient, confirm file path exists). The confirmation step before sending acts as a proper validation gate for a destructive-ish operation (sending messages).

3 / 3

Progressive Disclosure

For a skill of this scope (single CLI tool, ~80 lines), the content is well-organized into logical sections without being monolithic. No bundle files are needed — all necessary information fits cleanly in the single file with clear section headers for navigation.

3 / 3

Total

12

/

12

Passed

Description

67%

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 is concise and specific about its capabilities, clearly identifying the domain (iMessage/SMS) and concrete actions (listing chats, viewing history, sending messages). Its main weaknesses are the lack of an explicit 'Use when...' trigger clause and missing common user phrasings like 'text message' or 'send a text' that would improve skill selection accuracy.

Suggestions

Add a 'Use when...' clause, e.g., 'Use when the user wants to send or read text messages, view iMessage conversations, or interact with Messages.app.'

Include additional natural trigger terms like 'text message', 'texting', 'send a text', 'conversation history', and 'message thread' to capture common user phrasings.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: 'listing chats', 'history', and 'sending messages'. Also specifies the tool ('Messages.app') and interface type ('CLI').

3 / 3

Completeness

Clearly answers 'what does this do' (listing chats, history, sending messages via CLI), but lacks an explicit 'Use when...' clause specifying when Claude should select this skill.

2 / 3

Trigger Term Quality

Includes good terms like 'iMessage', 'SMS', 'chats', 'messages', and 'Messages.app', but misses common user variations like 'text message', 'texting', 'send a text', or 'conversation history'.

2 / 3

Distinctiveness Conflict Risk

Very distinct niche — iMessage/SMS via Messages.app CLI is highly specific and unlikely to conflict with other skills. The combination of messaging platform and CLI interface creates a clear identity.

3 / 3

Total

10

/

12

Passed

Validation

72%

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

Validation8 / 11 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

frontmatter_unknown_keys

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

Warning

Total

8

/

11

Passed

Repository
Hung-Reo/hungreo-openclaw
Reviewed

Table of Contents

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