Agent skill

Technical Writing

by cashew-labs in cashew-labs/libretto

Guide for writing effective technical documentation, specs, and markdown files.

MITAuto-check passedWriting & Content

Install Technical Writing

skills CLI
$ npx skills add cashew-labs/libretto --skill technical-writing -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install cashew-labs/libretto technical-writing --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/cashew-labs/libretto.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/technical-writing .claude/skills/technical-writing && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
technical-writing
GitHub stars
904
Token cost
~245 tokens
SKILL.md length
103 words
Files
1
Skills in repo
21
Repo updated
First seen
Licence
MIT

At a glance

Guide for writing effective technical documentation, specs, and markdown files.

  • AGENTS.md files
  • SKILL.md covers Audience, Style, Formatting and Paths, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Any markdown content in the codebase

What it does

Technical Writing is an agent skill from cashew-labs/libretto. Guide for writing effective technical documentation, specs, and markdown files. Use when creating or editing specs, documentation, READMEs, AGENTS.md files, or any markdown content in the codebase.

Its SKILL.md is about 250 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Writing & Content, covering Technical documentation and Technical writing. The repository describes itself as: The AI toolkit for building reliable browser automations. The licence is MIT.

When your agent uses it

  • AGENTS.md files
  • Any markdown content in the codebase

Example prompts

  • “/technical-writing”

What it can do on your machine

Read from SKILL.md and the folder at commit 41ab782. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Technical Writing loads about 245 tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 103 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~54
When it runs · the whole SKILL.md, loaded when a task matches
~245

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from cashew-labs/libretto at commit 41ab782, republished under its MIT licence (© cashew-labs). 103 words, ~245 tokens.

Download SKILL.mdSave it as .claude/skills/technical-writing/SKILL.md (or your agent's skills folder).
name
technical-writing
description
Guide for writing effective technical documentation, specs, and markdown files. Use when creating or editing specs, documentation, READMEs, AGENTS.md files, or any markdown content in the codebase.

Technical Writing

Audience

Assume readers are at least as smart as you, so do not over-explain. State information once and move on.

Style

Write concise, complete sentences using active voice and present tense. Each paragraph or bullet should express a single idea.

Formatting

  • Do not use emojis.
  • Do not use bold or italics.
  • Use headings, lists, and code blocks only when they add clarity.
  • Use fenced code blocks with language identifiers.

Paths

Always use relative file paths: docs/testing.md, not /Users/name/project/docs/testing.md.

Do Not Repeat

Link to existing resources instead of duplicating content. Reference other docs, web pages, or files rather than restating their information.

© cashew-labs, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/technical-writing of cashew-labs/libretto.

Open the folder on GitHubat commit 41ab782

Compare with similar skills

Technical Writing next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Technical Writing compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Technical Writing this skillcashew-labs/libretto904—~245Automated safety check: PassMIT
Beads Documentation Style Guidegastownhall/beads28k—~3.2kAutomated safety check: PassMIT
JavaScript Concept Page Workflowleonardomso/33-js-concepts67k—~3.9kAutomated safety check: PassMIT
Technical Writing Standardcursor/plugins10k10 repos~2.4kAutomated safety check: PassNone
Heym Documentation Articlesheymrun/heym1.4k—~780Automated safety check: PassCustom licence
JavaScript Concept Page Writerleonardomso/33-js-concepts67k—~14kAutomated safety check: PassMIT

Similar skills

  • Sets the house style for the beads user docs: the canonical concept model, required terminology, prose and diagram conventions, and checks before docs work is done.

    28k GitHub stars~3.2k tokensUpdated today
    Writing & ContentAuto-check passed
  • JavaScript Concept Page Workflow

    leonardomso/33-js-concepts

    Orchestrates five skills to produce a complete JavaScript concept documentation page, from resource curation through writing, tests, fact-checking and SEO.

    67k GitHub stars~3.9k tokensUpdated 29 days ago
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  • Official

    Applies four layers of technical-writing rules to docs, RFCs, readmes, PR descriptions and commit messages so a tired engineer follows them on the first read.

    10k GitHub starsUsed in 10 repos~2.4k tokens
    Writing & ContentAuto-check passed
  • Creates and updates documentation articles for the Heym platform: category choice, manifest entry, markdown file and cross-links from existing pages.

    1.4k GitHub stars~780 tokensUpdated today
    Writing & ContentAuto-check passed
  • JavaScript Concept Page Writer

    leonardomso/33-js-concepts

    Writes or reviews documentation pages for the 33 JavaScript Concepts project, following its structure, a beginner-friendly voice and rules against AI-sounding language.

    67k GitHub stars~14k tokensUpdated 29 days ago
    Writing & ContentAuto-check passed
  • Technical Writing Workflow

    tokenbender/agent-guides

    A skill your agent uses for planning, researching, drafting, revising, or auditing technical write-ups, textbooks, papers, reports, READMEs, research notes, PR narratives, and public technical prose.

    367 GitHub stars~1.3k tokensUpdated 2 mo ago
    Writing & ContentAuto-check passed

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  • Drives desktop Electron apps already installed on your machine, such as Slack, Discord or VS Code, by relaunching them with a debugging port and using the Libretto CLI.

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  • Feature Spec Generator

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    Researches the codebase and relevant docs, asks clarifying questions, then writes a spec sheet in specs/ for a significant feature or complex fix.

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Questions about Technical Writing

What does Technical Writing do?

Guide for writing effective technical documentation, specs, and markdown files. Technical Writing is an agent skill from cashew-labs/libretto. Guide for writing effective technical documentation, specs, and markdown files.

When should I use Technical Writing?

Technical Writing fits situations like: AGENTS.md files; any markdown content in the codebase.

How do I install Technical Writing in Claude Code?

Run `npx skills add cashew-labs/libretto --skill technical-writing -a claude-code`. Or copy the skill folder (.agents/skills/technical-writing in cashew-labs/libretto) into .claude/skills/technical-writing in your project. Claude Code loads it when a task matches its description.

How do I install Technical Writing in Codex?

Run `npx skills add cashew-labs/libretto --skill technical-writing -a codex`. Or copy the skill folder (.agents/skills/technical-writing in cashew-labs/libretto) into .agents/skills/technical-writing in your project. Codex loads it when a task matches its description.

Can I use Technical Writing in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add cashew-labs/libretto --skill technical-writing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/technical-writing, .gemini/skills/technical-writing, .github/skills/technical-writing and .opencode/skills/technical-writing in your project.

What does Technical Writing need to run?

SKILL.md names no scripts, command-line tools or credentials: Technical Writing is instructions for the agent only.

Does Technical Writing access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Technical Writing safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Technical Writing use?

Technical Writing is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Technical Writing use?

About 245 tokens (SKILL.md is roughly 980 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Technical Writing?

Skills that share tags, products or a category with Technical Writing: Beads Documentation Style Guide (gastownhall/beads, 28k stars), JavaScript Concept Page Workflow (leonardomso/33-js-concepts, 67k stars), Technical Writing Standard (cursor/plugins, 10k stars) and Heym Documentation Articles (heymrun/heym, 1.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Technical Writing?

cashew-labs (a GitHub organization) maintains it in cashew-labs/libretto, which has 904 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on August 21, 2026.

Source: cashew-labs/libretto on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.