expert-engine

expert-engine is a skill for Claude Code, Codex from AskRoundtable/expert-skills. It costs 42 tokens per session (6,010 once invoked), scanned A, original, MIT.

A structured thinking framework based on Gary Klein's Recognition-Primed Decision model, which describes how experienced people recognize patterns and choose actions in complex situations.

In plain words
What is it for?
Use it for complex problem solving and decision analysis, usually together with a domain-specific expert module such as one focused on finance or science.
Why use it?
It provides a repeatable way to reason through difficult decisions instead of relying only on quick opinions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for complex problem solving and decision analysis, usually together with a domain-specific expert module such as one focused on finance or science.

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Install with agentmods
npx agentmods add skills/askroundtable/expert-skills/expert-engine
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 AskRoundtable/expert-skills --skill expert-engine
Clone the repo
git clone --depth 1 https://github.com/AskRoundtable/expert-skills

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 expert-engine

README.md
[![agentmods](https://agentmods.dev/badge/skills/askroundtable/expert-skills/expert-engine/github.svg)](https://agentmods.dev/skills/askroundtable/expert-skills/expert-engine)
Your own site
<a href="https://agentmods.dev/skills/askroundtable/expert-skills/expert-engine"><img src="https://agentmods.dev/badge/skills/askroundtable/expert-skills/expert-engine/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 expert-engine

Your own site · 80×15
<a href="https://agentmods.dev/skills/askroundtable/expert-skills/expert-engine"><img src="https://agentmods.dev/badge/skills/askroundtable/expert-skills/expert-engine.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,010 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 $0.00042 $0.06010
Opus 5.5 $0.00017 $0.02404
Sonnet 5.5 $0.00008 $0.01202
Haiku 4.5 $0.00004 $0.00601

Measured 1mo ago against content hash 58c9426e27f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

expert-engine 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.

skills/expert-engine/SKILL.md · 652 lines

How it starts

The opening of the file, as written. The whole thing — 652 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Expert Thinking Engine

A cognitive framework for expert-level analysis based on Gary Klein's Recognition-Primed Decision (RPD) model.

When to Load

Load this skill when:

  • Analyzing complex decisions or problems
  • Needing structured expert thinking (not just opinions)
  • Combining with an expert module (expert-munger, expert-feynman, etc.)

Required Companion

This skill provides the thinking process. Load with an expert module to provide:

  • Domain-specific patterns
  • Mental models
  • Cue sensitivity

Example: npx openskills read expert-engine,expert-munger


Output Style

Default: Conversational

The 6-step process is internal reasoning scaffolding. The user should experience a conversation, not a report.

Unless the user explicitly asks for a "full analysis" or "detailed report":

  • Do NOT show step labels (## Step 0, ## Pattern Recognition, etc.) in output
  • Ask ONE question at a time — never bundle multiple questions in one turn
  • Present insights as flowing prose, not formatted tables
  • Surface confidence only when uncertainty is decision-relevant — omit numeric scores unless they change what the user should do
  • Earn more detail: start with the sharpest single insight; expand only if user asks

The full structured format (tables, all steps labeled, confidence matrix) is reserved for:

  • User explicitly requests "full analysis" or "structured breakdown"
  • Complex multi-stakeholder decisions where a written record has value

For Step 0 specifically: one reframing question → wait for answer → then proceed. Never ask two questions in the same turn.


The 6-Step Cognitive Process

Step 0: Discovery (Situation Clarification)

Before analyzing, clarify the situation and assess information quality. This step uses frameworks from references/communication-frameworks.md.

Process:

  1. Read the problem statement carefully
  2. Apply appropriate inquiry technique (Open-to-Specific, Timeline, Perspective Shift)
  3. Monitor conversation quality (confidence score)
  4. Identify critical information gaps
  5. Decide: proceed, ask more, or escalate

Read the full file on GitHub · 652 lines

Files

What ships with it

3 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. 1mo ago First seen · 652 lines · 42 tokens per session scan A 58c9426e27f3

Subscribe to this mod's changes

expert-engine is a skill published in the GitHub repository AskRoundtable/expert-skills (55 stars, last pushed 6mo ago), licensed MIT. It adds 42 tokens to every session and 6,010 once invoked, about $0.0002 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.

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