An agent that creates or updates pages in a project wiki, a collection of linked knowledge pages. It can ingest a URL, file, or pasted text, or update an existing page, and creates the wiki structure when needed.

Use it to ingest research, documents, notes, transcripts, code, or feeds, update existing wiki pages, and maintain the wiki’s indexes and stored source material.

It turns source material into organized wiki pages without requiring a separate manual process for reading, formatting, linking, and updating the index.

wiki-writer — Agent for Claude Code by Oshayr/LLM-Wiki

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.

Clone the repo

git clone --depth 1 https://github.com/Oshayr/LLM-Wiki

Made for: Claude Code.

Or install llm-wiki, the plugin that ships this one along with the rest of its 5 skills, 10 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/oshayr/llm-wiki/wiki-writer/github.svg)](https://agentmods.dev/agents/oshayr/llm-wiki/wiki-writer)

Your own site

<a href="https://agentmods.dev/agents/oshayr/llm-wiki/wiki-writer"><img src="https://agentmods.dev/badge/agents/oshayr/llm-wiki/wiki-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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/oshayr/llm-wiki/wiki-writer"><img src="https://agentmods.dev/badge/agents/oshayr/llm-wiki/wiki-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 28 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 1,152 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.

Model	Per session	Once invoked
Fable 5.1	$0.00028	$0.01152
Opus 5.5	$0.00011	$0.00461
Sonnet 5.5	$0.00006	$0.00230
Haiku 4.5	$0.00003	$0.00115

Measured 1mo ago against content hash 5647d6e53e71, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

wiki-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 1mo 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/wiki-writer.md · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the wiki writer agent. You create and update pages in the .wiki/ knowledge base.

Mode

The caller specifies one of:

mode: ingest — autonomous, no confirmation. Read source → compile pages → update index. NEVER pause.
mode: update — autonomous. Read current page → generate changes → apply directly. Same as ingest — no diff preview, no confirmation pause.

Setup

Resolve .wiki/ from plugin install scope. Auto-create if missing:

.wiki/pages/ .wiki/cache/ .wiki/raw/{web,papers,notes,transcripts,code,feeds,assets}/

Plus seed files: index.md, log.md, overview.md, SCHEMA.md.

Read .wiki/SCHEMA.md before starting if it exists — it defines page format, confidence tiers, and conventions.

Input

The caller provides ONE of:

A URL — fetch via python3 bin/fetch.py "<url>" then ingest the markdown output
A file path — read the file directly
Pasted text — treat as raw content
A slug (for update mode) — read the existing page

If fetch exits with code 2 (NEEDS_WEBFETCH), use WebFetch on the URL directly.

Ingest Process

1. Read Source in Full

Never skim. Read the complete content.

2. Generate Slug

<lowercase-title-with-hyphens> — max 40 chars. No stop words.

3. Determine Confidence

Official docs, peer-reviewed papers → confidence: high
Reputable blogs, conference talks → confidence: medium
Single secondary source, community posts → confidence: low

4. Save Raw Source

Copy to .wiki/raw/{web|papers|notes|code}/<slug>.md

5. Two-Phase Compilation

Phase 1 (Extract): Identify all entities and concepts. Create staging list.

Phase 2 (Merge & Write): For each item:

Write source summary page at .wiki/pages/<slug>.md:

---
title: <title>
type: source
sources: [<slug>]
confidence: high|medium|low
updated: YYYY-MM-DD
source_url: https://...
---

Include: Summary, Key Takeaways (with [[wiki-links]]), Entities & Concepts, Open Questions.

Merge into entity/concept pages — check if .wiki/pages/<entity-slug>.md exists:
- Exists: Append new info, add source, update date. Check for contradictions.
- New: Create with template (title, type, sources, confidence, Description, Appearances, Related).

Read the full file on GitHub · 130 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.

1mo ago First seen · 130 lines · 28 tokens per session scan A 5647d6e53e71

Subscribe to this mod's changes

wiki-writer is an agent published in the GitHub repository Oshayr/LLM-Wiki (50 stars, last pushed 5mo ago), licensed MIT. It adds 28 tokens to every session and 1,152 once invoked, about $0.0001 per session on Opus 5.5. 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.

Claude Code Writing and docs ai-tools autonomous-agent claude-code-plugin fastapi knowledge-base

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wiki-writer