kb-builder

kb-builder is a skill for Claude Code, Codex from tinyfish-io/tinyfish-cookbook. It costs 158 tokens per session (5,650 once invoked), scanned A, original, MIT.

A builder for Obsidian-compatible knowledge bases, which are linked Markdown notes that can be opened in the Obsidian note-taking app. It gathers information from public web pages, GitHub repositories, and papers.

In plain words
What is it for?
Use it to research a technical topic and create a structured Markdown vault with source-based notes and guidance on what to read first.
Why use it?
It turns scattered research into an organised set of connected notes that explains the main ideas, approaches, evidence, and unresolved questions.

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/tinyfish-io/tinyfish-cookbook/kb-builder
Any agent
npx skills add tinyfish-io/tinyfish-cookbook --skill kb-builder
Clone the repo
git clone --depth 1 https://github.com/tinyfish-io/tinyfish-cookbook

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 kb-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/tinyfish-io/tinyfish-cookbook/kb-builder.svg)](https://agentmods.dev/skills/tinyfish-io/tinyfish-cookbook/kb-builder)
Your own site
<a href="https://agentmods.dev/skills/tinyfish-io/tinyfish-cookbook/kb-builder"><img src="https://agentmods.dev/badge/skills/tinyfish-io/tinyfish-cookbook/kb-builder.svg" alt="Measured on agentmods" height="20"></a>
Per session 158 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,650 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 $0.00158 $0.05650
Opus 5 $0.00079 $0.02825
Sonnet 5 $0.00032 $0.01130
Haiku 4.5 $0.00016 $0.00565

Measured 4d ago against content hash db63399736e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

kb-builder 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 4d 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.

skills/kb-builder/SKILL.md · 786 lines

How it starts

The opening of the file, as written. The whole thing — 786 lines — stays where its author put it; the contents beside it link to each section on GitHub.

KB Builder

Build a topic-specific markdown knowledge base by using TinyFish to browse public web sources and extract structured evidence.

This skill is for builder knowledge bases, not personal journals and not direct code generation.

The output is a folder you can drop into Obsidian immediately, and update later without starting over.

Core principle

Do not produce a pile of source summaries.

The KB should help the reader understand:

  • the core mental model
  • the main approaches or schools of thought
  • what is foundational vs derivative
  • what actually matters
  • what is unresolved
  • what to read first if they want genuine understanding

If the output only says what each source said, the skill has failed.

Pre-flight check

Run both checks before any TinyFish call:

which tinyfish && tinyfish --version || echo "TINYFISH_CLI_NOT_INSTALLED"
tinyfish auth status

If TinyFish is not installed, stop and tell the user:

npm install -g @tiny-fish/cli

If TinyFish is not authenticated, stop and tell the user:

tinyfish auth login

Do not continue until both checks pass.

Scope

  • Allowed: public web pages, public GitHub repos, public papers, public docs, public datasets, public blog posts
  • Not allowed: private sources, local private files, authenticated dashboards, chat logs, email, Slack, or anything the user cannot access publicly
  • Primitive: use explicit tinyfish agent run commands
  • Output shape: always index.md, sources.md, audit.md, and manifest.json; everything else is dynamic

Input modes

You support two modes:

  1. Topic only
    • Example: Build me a knowledge base on web agent frameworks
  2. Topic + starter URLs
    • Example: Build me a knowledge base on web agent frameworks and start from these URLs: ...
  3. Update an existing KB
    • Example: Update my knowledge base on Kolmogorov-Arnold Networks with these new URLs: ...
  4. Trace mode
    • Example: Build me a knowledge base on browser agents --trace

Read the full file on GitHub · 786 lines

Files

What ships with it

1 file 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. 4d ago First seen · 786 lines · 158 tokens per session scan A db63399736e9

Subscribe to this mod's changes

kb-builder is a skill published in the GitHub repository tinyfish-io/tinyfish-cookbook (2,135 stars, last pushed 7d ago), licensed MIT. It adds 158 tokens to every session and 5,650 once invoked, about $0.0008 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 2026-08-30.

Related

Other skills, from other repositories

smoke-test

End-to-end smoke test skill for DeerFlow. Guides through: 1) Pulling latest code, 2) Docker OR Local installation and deployment (user preference, default to Local if Docker network issues), 3) Service availability verification, 4) Health check, 5) Final test report. Use when the user says "run smoke test", "smoke…

bytedance/deer-flow · 0 tokens

image-generation

Use this skill when the user requests to generate, create, imagine, or visualize images including characters, scenes, products, or any visual content. Supports structured prompts and reference images for guided generation.

bytedance/deer-flow · 42 tokens

podcast-generation

Use this skill when the user requests to generate, create, or produce podcasts from text content. Converts written content into a two-host conversational podcast audio format with natural dialogue.

bytedance/deer-flow · 38 tokens

vercel-deploy

Deploy applications and websites to Vercel. Use this skill when the user requests deployment actions such as "Deploy my app", "Deploy this to production", "Create a preview deployment", "Deploy and give me the link", or "Push this live". No authentication required - returns preview URL and claimable deployment link.

bytedance/deer-flow · 69 tokens

skill-reviewer

Reviews DeerFlow skill packages for readiness, triggers, safety boundaries, resources, and evidence. Invoke when users ask to audit, grade, or production-check an existing skill.

bytedance/deer-flow · 38 tokens

surprise-me

Create a delightful, unexpected "wow" experience for the user by dynamically discovering and creatively combining other enabled skills. Triggers when the user says "surprise me" or any request expressing a desire for an unexpected creative showcase. Also triggers when the user is bored, wants inspiration, or asks for…

bytedance/deer-flow · 67 tokens