code-wiki

code-wiki is a skill for Claude Code, Codex from NousResearch/hermes-agent. It costs 15 tokens per session (3,692 once invoked), scanned C, original, MIT.

A documentation generator that turns a codebase into a structured wiki with written explanations and Mermaid diagrams. Mermaid is a text format for diagrams that can render in places such as GitHub.

In plain words
What is it for?
Creating repository overviews, architecture documentation, module deep-dives, class diagrams, and sequence diagrams.
Why use it?
It gives developers a reference for an unfamiliar repository without requiring them to explain each file and module manually.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for hermes-agent. Also seen: built for hermes-agent.

Good fit Creating repository overviews, architecture documentation, module deep-dives, class diagrams, and sequence diagrams.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nousresearch/hermes-agent/code-wiki
About the project

Hermes Agent is an AI assistant that learns from its use by creating and improving skills, retaining knowledge, searching past conversations, and adapting to its users. It is for people who want to run an agent through a terminal or messaging platforms while connecting it to different AI models and scheduled tasks.

NousResearch/hermes-agent · 242,680 stars · on GitHub · hermes-agent.nousresearch.com

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 NousResearch/hermes-agent --skill code-wiki
Clone the repo
git clone --depth 1 https://github.com/NousResearch/hermes-agent

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 code-wiki

README.md
[![agentmods](https://agentmods.dev/badge/skills/nousresearch/hermes-agent/code-wiki.svg)](https://agentmods.dev/skills/nousresearch/hermes-agent/code-wiki)
Your own site
<a href="https://agentmods.dev/skills/nousresearch/hermes-agent/code-wiki"><img src="https://agentmods.dev/badge/skills/nousresearch/hermes-agent/code-wiki.svg" alt="Measured on agentmods" height="20"></a>
Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,692 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00015 $0.03692
Opus 5 $0.00008 $0.01846
Sonnet 5 $0.00003 $0.00738
Haiku 4.5 $0.00002 $0.00369

Measured 3d ago against content hash 5d3e5b93dfd1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade C, and why

code-wiki scanned grade C with 1 finding 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

If you cloned to a temp dir, remind the user it can be removed (`rm -rf "$WIKI_TMP"`) after they've reviewed the wiki.
Origin

Copies of this mod

6 near-identical copies found in the catalogue:

optional-skills/software-development/code-wiki/SKILL.md · 446 lines

How it starts

The opening of the file, as written. The whole thing — 446 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Wiki Skill

Generate a full wiki for any codebase — overview, architecture, per-module deep-dives, Mermaid class and sequence diagrams. Inspired by Google CodeWiki, but works on local repos, private repos, and any language. Uses only existing Hermes tools (terminal, read_file, search_files, write_file); no Docker, no external services, no extra dependencies.

This skill produces reference documentation (what/how). It does not produce strategic narrative (why — that's a different skill).

When to Use

  • User says "document this codebase", "generate a wiki", "make architecture diagrams"
  • Onboarding to an unfamiliar repo and wants a structured reference
  • User points at a GitHub URL and asks for documentation
  • Need a stable artifact (markdown + Mermaid) that renders on GitHub

Do NOT use this for:

  • Single-file or single-function documentation — just answer directly
  • API reference for one specific endpoint — use read_file and answer inline
  • Strategic "why does this exist" narrative — different skill, different purpose
  • Codebases the user is actively developing in this session — just answer questions as they come

Prerequisites

  • No env vars required.
  • git on PATH for repo SHA tracking and remote clones.
  • Optional: pygount for language-breakdown stats (see the codebase-inspection skill).

How to Run

Invoke through the terminal tool from the target repo's root, then use read_file / search_files / write_file to produce the wiki. Default output location is ~/.hermes/wikis/<repo-name>/. Only write into the repo (docs/wiki/) when the user explicitly requests it.

Quick Reference

Step Action
1 Resolve target — local cwd, given path, or git clone --depth 50 <url> to a temp dir
2 Scan structure — ls, find -maxdepth 3, manifest files, README
3 Pick 8–10 modules to document
4 Write README.md (overview + module map)
5 Write architecture.md with Mermaid flowchart
6 Write per-module docs in modules/
7 Write diagrams/class-diagram.md (Mermaid classDiagram)
8 Write diagrams/sequences.md (Mermaid sequenceDiagram, 2–4 workflows)
9 Write getting-started.md
10 Write api.md if applicable, else skip
11 Write .codewiki-state.json
12 Report paths to user

Read the full file on GitHub · 446 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 446 lines · 15 tokens per session scan C 5d3e5b93dfd1

Subscribe to this mod's changes

code-wiki is a skill published in the GitHub repository NousResearch/hermes-agent (242,680 stars, last pushed today), licensed MIT. It adds 15 tokens to every session and 3,692 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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