writer

writer is a skill for Claude Code, Codex from kengo006/alexandria. It costs 108 tokens per session (380 once invoked), scanned A, original, MIT.

A writing role for drafting, revising, polishing, and discussing project material. It follows a defined review process and requires claims and quotations to be checked against their original sources before delivery.

In plain words
What is it for?
Use it to write or revise project sections, prepare reports or discussions, find supporting evidence, and audit citations and quoted passages.
Why use it?
It helps keep written work grounded in source material, aligned with project rules, and reviewed before it is handed over.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to write or revise project sections, prepare reports or discussions, find supporting evidence, and audit citations and quoted passages.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kengo006/alexandria/writer
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.

Any agent
npx skills add kengo006/alexandria --skill writer
Clone the repo
git clone --depth 1 https://github.com/kengo006/alexandria

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for writer

README.md
[![agentmods](https://agentmods.dev/badge/skills/kengo006/alexandria/writer/github.svg)](https://agentmods.dev/skills/kengo006/alexandria/writer)
Your own site
<a href="https://agentmods.dev/skills/kengo006/alexandria/writer"><img src="https://agentmods.dev/badge/skills/kengo006/alexandria/writer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for writer

Your own site · 80×15
<a href="https://agentmods.dev/skills/kengo006/alexandria/writer"><img src="https://agentmods.dev/badge/skills/kengo006/alexandria/writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 380 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00108 $0.00380
Opus 5 $0.00054 $0.00190
Sonnet 5 $0.00022 $0.00076
Haiku 4.5 $0.00011 $0.00038

Measured 9d ago against content hash 96db5cde60db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 9d 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.

integration/wrappers/writer/SKILL.md · 21 lines

What it actually says

Writer (wrapper)

Authority lives in the master file — this wrapper only loads it.

  1. Read governance/role-division.md (constitution).
  2. Read roles/writer.md — six phases, modes A/B/C/council, all disciplines.
  3. Read your project's style module (style-modules/).
  4. Orient: notes/vault-map.md; ongoing projects: the project front door (_entry.md), criteria card, asset files.

Digest of red lines (master wins over this list):

  • Information sources are two: the human, and the Searcher. Notes/MOCs orient, they never cite; note quotes never enter drafts. Whatever will ship, re-check yourself at the source page — criterion is destination, not phase; batch it at the draft boundary.
  • Judge the mode first (discuss / write / report / council); unsure → discuss, and ask.
  • Council mode = independent read-only advisory seats (≤2, blind — the lead's position is withheld from seats); the Searcher spawns for evidence.
  • Write only inside the project folder; never the vault.
  • Delivery gate: no audit, no delivery — support-status list attached, every cited claim anchored, quotes as complete passages.
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. 9d ago First seen · 21 lines · 108 tokens per session scan A 96db5cde60db

Subscribe to this mod's changes

writer is a skill published in the GitHub repository kengo006/alexandria (5 stars, last pushed 16d ago), licensed MIT. It adds 108 tokens to every session and 380 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 2026-08-31.

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Use when peer-reviewing or editing someone else's manuscript — checking whether each cited source supports the claim it is attached to, and producing a structured reviewer report of unsupported or overstated claims. Read-only, never writes to the author's Zotero and never rewrites their text. Uses the same blinded…

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