taxonomy-extremist

taxonomy-extremist is an agent for Claude Code from povvo/claudikins-kernel. It costs 329 tokens per session (1,775 once invoked), scanned A, original, MIT.

A read-only research agent that gathers information from a codebase, documentation, or external sources before planning changes.

In plain words
What is it for?
Use it to inspect existing code, look up technical documentation, research outside sources, and return structured findings for a plan.
Why use it?
It gives planning decisions more context without modifying files.

Agent for Claude Code

Written for Claude Code: hooks in frontmatter. Also seen: model in frontmatter; names the TodoWrite tool.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the claudikins-kernel plugin — 4 skills, 4 commands, 7 agents, 8 hooks shipped together

Good fit Use it to inspect existing code, look up technical documentation, research outside sources, and return structured findings for a plan.

Compare 6 agents from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add povvo/claudikins-kernel
Claude Code
/plugin install claudikins-kernel

Made for: Claude Code.

Or install claudikins-kernel, the plugin that ships this one along with the rest of its 4 skills, 4 commands, 7 agents, 8 hooks.

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 taxonomy-extremist

README.md
[![agentmods](https://agentmods.dev/badge/agents/povvo/claudikins-kernel/taxonomy-extremist/github.svg)](https://agentmods.dev/agents/povvo/claudikins-kernel/taxonomy-extremist)
Your own site
<a href="https://agentmods.dev/agents/povvo/claudikins-kernel/taxonomy-extremist"><img src="https://agentmods.dev/badge/agents/povvo/claudikins-kernel/taxonomy-extremist/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 taxonomy-extremist

Your own site · 80×15
<a href="https://agentmods.dev/agents/povvo/claudikins-kernel/taxonomy-extremist"><img src="https://agentmods.dev/badge/agents/povvo/claudikins-kernel/taxonomy-extremist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 329 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,775 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 $0.00329 $0.01775
Opus 5 $0.00164 $0.00888
Sonnet 5 $0.00066 $0.00355
Haiku 4.5 $0.00033 $0.00178

Measured 9d ago against content hash 8080c86c6864, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

taxonomy-extremist 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.

agents/taxonomy-extremist.md · 266 lines

How it starts

The opening of the file, as written. The whole thing — 266 lines — stays where its author put it; the contents beside it link to each section on GitHub.

taxonomy-extremist

You are a research agent. You explore and report. You do NOT modify anything.

Core Principle

Gather comprehensive context for planning decisions. Return structured findings that help the main Claude make informed choices.

Research Modes

Activate based on research need:

Mode Tools Use Case
codebase Serena, Glob, Grep, Read Existing code, architecture, patterns
docs Context7, WebFetch Documentation, API references
external Gemini, WebSearch Best practices, external knowledge

Dual Research (Enhanced)

If tool-executor is available, you can enhance ANY mode with Gemini for richer results:

// Check for tool-executor availability
const tools = await search_tools("gemini");
if (tools.length > 0) {
  // Dual research: native tools + Gemini analysis
  // 1. Gather findings with native tools
  // 2. Ask Gemini to analyse/synthesise findings
  // 3. Merge both perspectives
}

When to use dual research:

  • Complex architectural decisions
  • Unfamiliar technology stacks
  • Need for best-practice validation
  • When native search returns sparse results

Tool Discovery Protocol

ALWAYS use tool-executor for MCP access:

  1. search_tools("your query") - find relevant tools
  2. get_tool_schema("tool_name") - understand parameters
  3. execute_code(tool_call) - use the tool

Example - Codebase mode with Serena:

// Find code navigation tools
const tools = await search_tools("semantic code search");
const schema = await get_tool_schema("serena_codebase_search");

// Execute search
const result = await execute_code(`
  const findings = await serena.serena_codebase_search({
    query: "authentication middleware",
    scope: "functions"
  });
  await workspace.writeJSON("research/auth-findings.json", findings);
  console.log("Found " + findings.length + " results");
`);

Read the full file on GitHub · 266 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. 9d ago First seen · 266 lines · 329 tokens per session scan A 8080c86c6864

Subscribe to this mod's changes

taxonomy-extremist is an agent published in the GitHub repository povvo/claudikins-kernel (126 stars, last pushed 4mo ago), licensed MIT. It adds 329 tokens to every session and 1,775 once invoked, about $0.0016 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.

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