user-flow-writing

user-flow-writing is a skill for Claude Code from dungnotnull/hybrid-harness-chaos-process-prm. It costs 87 tokens per session (1,415 once invoked), scanned A, original, MIT.

A user-flow documentation tool that turns an approved product plan into maps of how people and systems move through an application. It also records error cases and the responses expected at each step.

In plain words
What is it for?
Use it to create journey maps, detailed flows, sequence diagrams, and an edge-case and error matrix from a PRD and architecture plan.
Why use it?
It exposes unclear interactions and failure paths before implementation, so developers and testers know what the product should do.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the hybrid-harness-chaos-process plugin — 37 skills, 4 commands shipped together

Good fit Use it to create journey maps, detailed flows, sequence diagrams, and an edge-case and error matrix from a PRD and architecture plan.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dungnotnull/hybrid-harness-chaos-process-prm/s01-1-user-flow-writing
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 dungnotnull/hybrid-harness-chaos-process-prm --skill s01-1-user-flow-writing
Clone the repo
git clone --depth 1 https://github.com/dungnotnull/hybrid-harness-chaos-process-prm

Made for: Claude Code.

Or install hybrid-harness-chaos-process, the plugin that ships this one along with the rest of its 37 skills, 4 commands.

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 user-flow-writing

README.md
[![agentmods](https://agentmods.dev/badge/skills/dungnotnull/hybrid-harness-chaos-process-prm/s01-1-user-flow-writing/github.svg)](https://agentmods.dev/skills/dungnotnull/hybrid-harness-chaos-process-prm/s01-1-user-flow-writing)
Your own site
<a href="https://agentmods.dev/skills/dungnotnull/hybrid-harness-chaos-process-prm/s01-1-user-flow-writing"><img src="https://agentmods.dev/badge/skills/dungnotnull/hybrid-harness-chaos-process-prm/s01-1-user-flow-writing/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 user-flow-writing

Your own site · 80×15
<a href="https://agentmods.dev/skills/dungnotnull/hybrid-harness-chaos-process-prm/s01-1-user-flow-writing"><img src="https://agentmods.dev/badge/skills/dungnotnull/hybrid-harness-chaos-process-prm/s01-1-user-flow-writing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,415 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 $0.00087 $0.01415
Opus 5 $0.00044 $0.00707
Sonnet 5 $0.00017 $0.00283
Haiku 4.5 $0.00009 $0.00142

Measured 12d ago against content hash 0faf549260d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

user-flow-writing 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 12d 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/s01-1-user-flow-writing/SKILL.md · 154 lines

How it starts

The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.

User Flow Writing (s01-1)

Purpose

Bridge the gap between "what" (PRD) and "how" (Implementation) by mapping the exact path a user (or system agent) takes through the application. The goal is to eliminate ambiguity, identify missing "sad paths," and ensure that the Developer/QA/SRE personas have a crystal-clear understanding of the expected behavior in all scenarios.


Prerequisites

  • Approved PRD from s01 (BA Requirements)
  • Architecture overview or ADRs from s01
  • User personas identified from PRD
  • Taste preferences loaded from .commandcode/taste/taste.md (recommended)

Input Contract

Input Source Required
Approved PRD .commandcode/prd.md (from s01) Yes
Architecture Overview PRD Section 3 / ADRs Yes
User Personas PRD Section 1 Yes
Taste Preferences .commandcode/taste/taste.md Recommended

Output Contract

Output Destination Format
User Journey Maps .commandcode/flows/journeys.md Mermaid / Markdown
Detailed User Flows .commandcode/flows/detailed-flows.md Mermaid / Markdown
Edge Case & Error Matrix .commandcode/flows/edge-cases.md Table / Markdown
Multi-Perspective Review Report .commandcode/flows/review-audit.md Markdown
Handoff for s04/s12 Workflow context object YAML

User Flow Framework

MAP -> STRESS-TEST -> REVIEW -> FINALIZE

Map: Create "Happy Path" and "Primary Sad Paths"
Stress-Test: Inject chaos/edge cases into the flow
Review: Multi-perspective audit (Dev, QA, Business, SRE)
Finalize: Sign-off and handoff to engineering

Phase 1: Journey Mapping (The Macro View)

Identify the "Golden Paths" for each persona.

  • Persona Identification: Define who is interacting (End User, Admin, System Cron, API Client).
  • High-Level Steps: 5-7 major milestones from entry to goal achievement.
  • Emotional/Friction Points: Identify where users might get confused or drop off.

Read the full file on GitHub · 154 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. 12d ago First seen · 154 lines · 87 tokens per session scan A 0faf549260d9

Subscribe to this mod's changes

user-flow-writing is a skill published in the GitHub repository dungnotnull/hybrid-harness-chaos-process-prm (19 stars, last pushed 3mo ago), licensed MIT. It adds 87 tokens to every session and 1,415 once invoked, about $0.0004 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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