document-knowledge-base

A guide for building a file-based knowledge base: a connected set of notes about a codebase, system, API, process, or subject.

In plain words
What is it for?
Use it to start a knowledge base, add or update entries, document systems and concepts, and maintain cross-references.
Why use it?
It helps keep documentation organized, linked, and marked according to whether it is incomplete, verified, or outdated.

Skill for Claude CodeCodex

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 skills/usefulmove/enso/document-knowledge-base
Any agent
npx skills add usefulmove/enso --skill document-knowledge-base
Clone the repo
git clone --depth 1 https://github.com/usefulmove/enso

Made for: Claude Code, Codex.

Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,529 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 $0.00054 $0.02529
Opus 5 $0.00027 $0.01264
Sonnet 5 $0.00011 $0.00506
Haiku 4.5 $0.00005 $0.00253

Measured yesterday against content hash b0e03fe2b75b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

document-knowledge-base 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.

skills/document-knowledge-base/SKILL.md · 327 lines

How it starts

The opening of the file, as written. The whole thing — 327 lines — stays where its author put it; the contents beside it link to each section on GitHub.

When to Use

Load this skill when:

  • Asked to create or update a knowledge base
  • Documenting a codebase, system, API, domain, or process for the first time
  • Refreshing a KB entry that may be stale
  • Bootstrapping a docs/core/architecture/ structure in a new project

The Core Idea

A knowledge base is not a library. It's a web.

Coverage is not the goal. The value is in the connections between entries — the relationships that let an agent (or a human) navigate from what they know to what they need. An entry with five accurate cross-references is worth more than a comprehensive entry with none.


Core Concepts

Entry Lifecycle

Every KB entry has a status:

Status Meaning
stub Node is known to exist; not yet documented
draft Documented from discovery; not yet verified against source
verified Confirmed accurate against source
stale Previously accurate; source has changed

Recommended Frontmatter

Keep frontmatter minimal. These fields matter for KB health:

---
title: <human-readable name>
source: <path, URL, or concept identifier — whatever was probed>
status: stub | draft | verified | stale
related: [<other entry paths or titles>]
last_updated: <YYYY-MM-DD>
---

Add domain-specific fields as needed (e.g., tags, owner, version). Don't over-engineer frontmatter for a first pass — status and last_updated are the minimum viable fields.

Naming for Navigability

KB entries and files are discovered by name before their content is read. Names should be self-describing.

Entry names (titles and filenames):

  • Use the subject's actual name, not a generic label: websocket-communication not layer-3
  • Prefer noun phrases that match how the subject is referred to in the codebase or domain
  • Avoid abbreviations unless they're universally understood in context
  • Directory names should match the entry title in kebab-case: websocket-communication/README.md

Read the full file on GitHub · 327 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.

  1. yesterday First seen · 327 lines · 54 tokens per session scan A b0e03fe2b75b

Subscribe to this mod's changes

document-knowledge-base is a skill published in the GitHub repository usefulmove/enso (2 stars, last pushed 2mo ago), licensed MIT. It adds 54 tokens to every session and 2,529 once invoked, about $0.0003 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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