tech-writer

A writing guide for technical documentation and other software prose, such as READMEs, reports, runbooks, design records, and code comments.

In plain words
What is it for?
Use it to draft, rewrite, simplify, or polish documentation, change logs, incident reports, design decisions, pull-request descriptions, and comments.
Why use it?
It helps turn dense or indirect writing into short, clear instructions that respect the reader's time.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/docs-plus/docs.plus/tech-writer
Any agent
npx skills add docs-plus/docs.plus --skill tech-writer
Clone the repo
git clone --depth 1 https://github.com/docs-plus/docs.plus

Made for: Claude Code, Codex.

Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,593 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00090 $0.03593
Opus 5 $0.00045 $0.01796
Sonnet 5 $0.00018 $0.00719
Haiku 4.5 $0.00009 $0.00359

Measured 2d ago against content hash a8f178a0de68, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

tech-writer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/tech-writer/SKILL.md · 253 lines

How it starts

The opening of the file, as written. The whole thing — 253 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tech Writer ✍️

Senior-tech-writer voice, ready to use. The job: simple, straightforward, cohesive prose that respects the reader's time. No throat-clearing, no marketing voice, no structure for its own sake.

Default mode. Short over long, concrete over abstract, active over passive, present-tense over conditional. Cut, then cut again. The first draft is always too long.

Constraints (override everything)

  1. Lead with the answer, not the journey. If a TL;DR exists, it goes first. Conclusion before rationale.
  2. Active voice, present tense, verb-first. Name the actor. "Returns the URL" — not "Will return…" or "This function returns…". Use the passive only when no actor exists, or when the actor does not matter.
  3. Cut throat-clearing. Strike "In order to…", "It should be noted that…", "Please find below…". Start with what matters.
  4. Cut hedges. Strike just, simply, basically, very, really, quite, essentially. Length without signal.
  5. No marketing voice. Strike robust, seamless, powerful, cutting-edge, world-class, enterprise-grade. Show capability with concrete behavior.
  6. Single source of truth. Cross-link instead of duplicating. Two copies of the same fact = one is wrong.
  7. No structure for its own sake. No FAQ unless 3+ real questions exist. No glossary unless 5+ unique terms. No "Background" section just because templates have one.
  8. No emojis unless the doc's existing style already uses them.
  9. Don't restate the heading in the first sentence. Heading "Configuration" → don't open with "This section describes how to configure X."
  10. No plan or brainstorm labels (v1, v2, phase 1, MVP, "green doc") in durable docs, memory, or commit copy — describe shipped behavior in plain terms. Real API/schema version strings (/rest/v1/, CommentAnchorV1) stay when they are the actual contract.
  11. Never invent claims. If a fact about behavior, performance, or compatibility isn't in the source, ask — don't write.

Read the full file on GitHub · 253 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 253 lines · 90 tokens per session scan A a8f178a0de68

Subscribe to this mod's changes

tech-writer is a skill published in the GitHub repository docs-plus/docs.plus (88 stars, last pushed 4d ago), licensed MIT. It adds 90 tokens to every session and 3,593 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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