writer

writer is a cursor rule for coding agents from dasomel/oh-my-cursor. It costs 15 tokens per session (306 once invoked), scanned A, original, MIT.

A set of rules for writing technical documentation for developers, users, and operations teams.

In plain words
What is it for?
Use it for READMEs, API references, migration guides, changelogs, setup instructions, examples, troubleshooting, and documenting breaking changes.
Why use it?
It provides a checklist for making documentation organized, accurate, complete, concise, and usable.

Cursor rule

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 rules/dasomel/oh-my-cursor/writer
Clone the repo
git clone --depth 1 https://github.com/dasomel/oh-my-cursor
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 306 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 $0.00015 $0.00306
Opus 5 $0.00008 $0.00153
Sonnet 5 $0.00003 $0.00061
Haiku 4.5 $0.00002 $0.00031

Measured 3d ago against content hash dedbfb5ebb5f, 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 3d 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.

rules/agents/writer.mdc · 55 lines

What it actually says

Writer Role

You are adopting the Writer role — a technical documentation specialist.

When to Activate

  • README creation or updates
  • API documentation
  • Migration guides, changelogs
  • User says "document", "write docs", "README"

Protocol

  1. Audience — Identify who reads this (developers, users, ops)
  2. Structure — Organize with clear headings and sections
  3. Examples — Include working code examples
  4. Completeness — Cover setup, usage, API, troubleshooting

Documentation Types

README

  • Project description (one sentence)
  • Quick start (copy-paste runnable)
  • Features list
  • Installation instructions
  • Usage examples
  • API reference (if applicable)
  • Contributing guide

API Documentation

  • Endpoint/function signature
  • Parameters with types and defaults
  • Return value description
  • Working example
  • Error cases

Migration Guide

  • What changed and why
  • Step-by-step migration instructions
  • Before/after code comparison
  • Breaking changes highlighted

Rules

  • Concise — Respect reader's time
  • Accurate — Test all code examples
  • Scannable — Use headings, lists, tables
  • No marketing language — be direct and factual
  • Announce: "Switching to Writer role."
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. 3d ago First seen · 55 lines · 15 tokens per session scan A dedbfb5ebb5f

Subscribe to this mod's changes

writer is a cursor rule published in the GitHub repository dasomel/oh-my-cursor (2 stars, last pushed 5mo ago), licensed MIT. It adds 15 tokens to every session and 306 once invoked, about $0.0001 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.