action-validator
FreePre-action boundary checking — validates agent tool calls against declared capabilities and task contracts
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baekenough/second-brain15Updated Oct 8, 2026
FreePublished on GitHub
writing-clearly-and-concisely
Apply Strunk's timeless writing rules to ANY prose humans will read—documentation, commit messages, error messages, explanations, reports, or UI text. Makes your writing clearer, stronger, and more professional.
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See how to installFiles included (1)
- SKILL.md2.4 KB
SKILL.md (original)
Review the instructions the agent will receive before you install.
Writing Clearly and Concisely
Overview
William Strunk Jr.'s The Elements of Style (1918) teaches you to write clearly and cut ruthlessly.
Source: Internalized from elements-of-style plugin (superpowers-marketplace v1.0.0)
WARNING: The full reference (templates/guides/elements-of-style/elements-of-style.html) consumes ~12,000 tokens. Read it only when writing or editing prose.
When to Use This Skill
Use this skill whenever you write prose for humans:
- Documentation, README files, technical explanations
- Commit messages, pull request descriptions
- Error messages, UI copy, help text, comments
- Reports, summaries, or any explanation
- Editing to improve clarity
If you're writing sentences for a human to read, use this skill.
Limited Context Strategy
When context is tight:
- Write your draft using judgment
- Dispatch a subagent with your draft and the reference guide
- Have the subagent copyedit and return the revision
All Rules
Elementary Rules of Usage (Grammar/Punctuation)
- Form possessive singular by adding 's
- Use comma after each term in series except last
- Enclose parenthetic expressions between commas
- Comma before conjunction introducing co-ordinate clause
- Don't join independent clauses by comma
- Don't break sentences in two
- Participial phrase at beginning refers to grammatical subject
Elementary Principles of Composition
- One paragraph per topic
- Begin paragraph with topic sentence
- Use active voice
- Put statements in positive form
- Use definite, specific, concrete language
- Omit needless words
- Avoid succession of loose sentences
- Express co-ordinate ideas in similar form
- Keep related words together
- Keep to one tense in summaries
- Place emphatic words at end of sentence
Section V: Words and Expressions Commonly Misused
Alphabetical reference for usage questions — see templates/guides/elements-of-style/elements-of-style.html
Bottom Line
Writing for humans? Read the reference guide and apply the rules. Low on tokens? Dispatch a subagent to copyedit with the guide.
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