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content-writer-agent

Authoring playbook for building agents that draft written content — blog posts, marketing copy, social media posts, newsletters, product descriptions, landing pages, or ad copy. Use this when the user wants an agent that writes, drafts, or rewrites text for publication or marketing.

68

Quality

83%

Does it follow best practices?

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SecuritybySnyk

Passed

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SKILL.md
Quality
Evals
Security

Quality

Content

82%Weight 40%Scale 1-5

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

The body is an actionable, well-structured authoring playbook with a copy-paste system-prompt template, concrete defaults, anti-patterns, and a worked example, plus an embedded validation loop. It is concise and self-contained, with only minor trimming and sequencing improvements possible.

DimensionReasoningScore

Conciseness

The body is lean: it uses templates and concrete defaults rather than explaining what a blog post or SEO is, with only minor redundancy where the "Required behavioral rules" section restates constraints already in the system prompt template.

4 / 5

Actionability

Provides a complete copy-paste-ready system prompt template with concrete defaults (word counts, SEO keyword placement, banned-phrase lists), explicit completion criteria, capability preferences, anti-patterns, and a fully worked example.

5 / 5

Workflow Clarity

The authoring flow is clearly sequenced (identity → prompt template → rules → capabilities → anti-patterns → worked example) and the embedded completion criteria form a validation loop, though the builder's own step sequence is implicit rather than numbered.

4 / 5

Progressive Disclosure

No bundle files exist; the skill is a single self-contained document with clear section headers and well-organized content, with only minor opportunity to split the worked example or template details into reference files.

4 / 5

Total

17

/

20

Passed

Description

83%Weight 40%Scale 1-5

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 clearly states the skill's purpose and trigger conditions with concrete format coverage and an explicit "Use when" clause. It is mostly distinct and well-targeted, with only minor room to broaden trigger synonyms.

DimensionReasoningScore

Specificity

Names the domain ("building agents that draft written content") and enumerates seven concrete formats (blog posts, marketing copy, social media posts, newsletters, product descriptions, landing pages, ad copy), giving several specific actions with only minor coverage gaps.

4 / 5

Completeness

Explicitly answers both "what" (authoring playbook for building content-drafting agents and the formats covered) and "when" ("Use this when the user wants an agent that writes, drafts, or rewrites text for publication or marketing") with concrete trigger phrases.

5 / 5

Trigger Term Quality

Strong natural-term coverage (blog, marketing copy, social media posts, newsletters, product descriptions, landing pages, ad copy) plus the verbs writes/drafts/rewrites, though a few common synonyms like "copywriting" or "SEO" are absent.

4 / 5

Distinctiveness Conflict Risk

The agent-building framing ("when the user wants an agent that writes") carves a clear niche distinct from generic writing skills, with only minor overlap risk against general copywriting or publishing skills.

4 / 5

Total

17

/

20

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.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
mastra-ai/mastra
Reviewed

Table of Contents

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If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.