discovery-advanced

discovery-advanced is a skill for Claude Code, Codex from paruff/uFawkesAI. It costs 62 tokens per session (1,784 once invoked), scanned A, original, MIT.

An advanced user-research method for testing risky product assumptions before building a major capability. It is intended for cases where a short discovery exercise is not enough.

In plain words
What is it for?
Use it for assumption mapping, lightweight interviews, persona prioritisation, jobs-to-be-done interviews, assumption reviews, or friction analysis.
Why use it?
It helps clarify uncertain user behaviour, conflicting needs, or poor adoption before more development time is spent.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code; installed under .agents/ (shared by several agents); mentions Codex.

Good fit Use it for assumption mapping, lightweight interviews, persona prioritisation, jobs-to-be-done interviews, assumption reviews, or friction analysis.

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Install with agentmods
npx agentmods add skills/paruff/ufawkesai/discovery-advanced
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 paruff/uFawkesAI --skill discovery-advanced
Clone the repo
git clone --depth 1 https://github.com/paruff/uFawkesAI

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 discovery-advanced

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/paruff/ufawkesai/discovery-advanced"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/discovery-advanced.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,784 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 $0.00062 $0.01784
Opus 5 $0.00031 $0.00892
Sonnet 5 $0.00012 $0.00357
Haiku 4.5 $0.00006 $0.00178

Measured 10d ago against content hash a2e0d3363d12, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

discovery-advanced 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 10d 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/skills/discovery-advanced/SKILL.md · 188 lines

How it starts

The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Discovery Advanced

Load trigger: "load discovery-advanced skill" > DORA: AI Capability 6 (User-centric focus) Token cost: Medium Prerequisite: discovery skill must have run first. This skill extends it.

Purpose

When the 15-minute discovery exercise surfaces an assumption too risky to build on without testing, this skill provides the methods to validate it before writing a line of code. Designed for a solo entrepreneur with 2hrs/day: every method here fits inside one session.

When to Use This Skill (not the base discovery skill)

Situation Method
Riskiest assumption involves user behavior you've never observed Assumption mapping + lightweight interview
Two personas have conflicting needs for the same feature Persona priority matrix
Major capability being designed (new belt module, new golden path) Jobs-to-be-done interview protocol
Previous release didn't get adopted despite solving the stated problem Assumption autopsy
Platform feedback NPS dropped significantly without clear cause Friction log analysis

Method 1: Assumption Mapping (20 min)

Surface all assumptions embedded in a proposed change, rank by risk.

## Assumption Map — [FEATURE_NAME]

For each assumption, assess:

- Importance: How critical is this to the feature working? (High/Med/Low)
- Certainty: How confident are we this is true? (High/Med/Low)
- Risk = High importance + Low certainty

| #   | Assumption                                           | Importance | Certainty | Risk    | Validation method    |
| --- | ---------------------------------------------------- | ---------- | --------- | ------- | -------------------- |
| 1   | Users will read the Quick Start before filing issues | High       | Low       | 🔴 High | Check issue patterns |
| 2   | Docker Compose up works on Mac ARM                   | High       | Med       | 🟡 Med  | CI matrix test       |
| 3   | Users prefer CLI over UI for config                  | Med        | Low       | 🟡 Med  | Friction log review  |

Prioritize: validate 🔴 High-risk assumptions before writing any spec.

Read the full file on GitHub · 188 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. 10d ago First seen · 188 lines · 62 tokens per session scan A a2e0d3363d12

Subscribe to this mod's changes

discovery-advanced is a skill published in the GitHub repository paruff/uFawkesAI (2 stars, last pushed 18d ago), licensed MIT. It adds 62 tokens to every session and 1,784 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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