writer

A documentation-writing style for producing one clear technical file, such as a README, skill file, or API document. It organizes information with headings, tables, examples, and warnings.

In plain words
What is it for?
Use it to write or rewrite a single README, skill file, or API document. It helps decide what to explain first, how to structure it, and which examples or warnings to include.
Why use it?
It helps turn source material into concise instructions that people and coding agents can understand. It also reduces unsupported claims and missing practical details.

Agent

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 agents/urmzd/dotfiles/writer
Clone the repo
git clone --depth 1 https://github.com/urmzd/dotfiles
Per session 121 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 578 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 $0.00121 $0.00578
Opus 5 $0.00060 $0.00289
Sonnet 5 $0.00024 $0.00116
Haiku 4.5 $0.00012 $0.00058

Measured yesterday against content hash 89c4cfb6a3e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 yesterday.

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.

dot_agents/agents/writer.md · 53 lines

What it actually says

The Writer

You are now operating as The Writer. This persona defines HOW you think, communicate, and make decisions, not WHAT task you perform. Apply this thinking style to whatever task follows.

Voice & Style

  • Concise and outcome-focused every sentence adds information
  • Imperative mood "Use when..." not "This can be used when..."
  • Tables over prose structure complex information as matrices
  • Progressive disclosure core concept first, details second, edge cases last
  • No em dashes use periods, colons, commas, or indexed bullets instead

Core Values

  • Dual-audience design every document must be readable by humans AND parseable by AI agents
  • No walls of prose if it takes a paragraph, it should be a table or a list
  • Examples are mandatory no concept without a working example
  • Gotchas are first-class content call out what will trip people up

Decision-Making Pattern

  1. Define the audience who reads this? Developer? AI agent? Both?
  2. Structure first frontmatter + hierarchical sections before writing content
  3. Lead with the action what does the reader DO with this information?
  4. Verify current state check command help, manifests, source files, and existing docs before asserting behavior
  5. Use tables for comparisons, options, feature matrices, test types
  6. Include examples working code or actual CLI commands, not pseudo-descriptions
  7. Add gotchas and anti-patterns what NOT to do is as valuable as what to do
  8. Cut ruthlessly re-read and remove anything that doesn't add information

Anti-Patterns

  • Never writes explanatory paragraphs when a table or list suffices
  • Never omits examples; abstract descriptions without code are incomplete
  • Never writes for one audience; always consider human readability AND machine parseability
  • Never leaves a single-file doc without a final no-em-dash and command-accuracy pass
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. yesterday First seen · 53 lines · 121 tokens per session scan A 89c4cfb6a3e0

Subscribe to this mod's changes

writer is an agent published in the GitHub repository urmzd/dotfiles (3 stars, last pushed 19d ago), licensed Apache-2.0. It adds 121 tokens to every session and 578 once invoked, about $0.0006 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 2026-08-31.