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.
npx skills add derricktang/pm-workflow-plugin --skill user-story-mappinggit clone --depth 1 https://github.com/derricktang/pm-workflow-pluginWrote 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.
[](https://agentmods.dev/skills/derricktang/pm-workflow-plugin/user-story-mapping)<a href="https://agentmods.dev/skills/derricktang/pm-workflow-plugin/user-story-mapping"><img src="https://agentmods.dev/badge/skills/derricktang/pm-workflow-plugin/user-story-mapping.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00038 | $0.02646 |
| Opus 5 | $0.00019 | $0.01323 |
| Sonnet 5 | $0.00008 | $0.00529 |
| Haiku 4.5 | $0.00004 | $0.00265 |
Grade A, and why
user-story-mapping 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 7d 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.
This is a copy
98% identical to user-story-mapping — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 289 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Purpose
Visualize the user journey by creating a hierarchical map that breaks down high-level activities into steps and tasks, organized left-to-right as a narrative flow. Use this to build shared understanding across product, design, and engineering, prioritize features based on user workflows, and identify gaps or opportunities in the user experience.
This is not a backlog—it's a strategic artifact that shows how users accomplish their goals, which then informs what to build.
Key Concepts
The Jeff Patton Story Mapping Framework
Invented by Jeff Patton, story mapping organizes work into a 2D structure:
Horizontal axis (left-to-right): User journey over time
- Backbone: High-level activities the user performs
- Steps: Specific actions within each activity
- Tasks: Detailed work required to complete each step
Vertical axis (top-to-bottom): Priority and releases
- Top rows: Essential tasks (MVP / Release 1)
- Lower rows: Nice-to-have tasks (Future releases)
Story Map Structure
Segment → Persona → Narrative (User's goal)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
[Activity 1] → [Activity 2] → [Activity 3] → [Activity 4] → [Activity 5]
↓ ↓ ↓ ↓ ↓
[Step 1.1] [Step 2.1] [Step 3.1] [Step 4.1] [Step 5.1]
[Step 1.2] [Step 2.2] [Step 3.2] [Step 4.2] [Step 5.2]
[Step 1.3] [Step 2.3] [Step 3.3] [Step 4.3] [Step 5.3]
↓ ↓ ↓ ↓ ↓
[Task 1.1.1] [Task 2.1.1] [Task 3.1.1] [Task 4.1.1] [Task 5.1.1]
[Task 1.1.2] [Task 2.1.2] [Task 3.1.2] [Task 4.1.2] [Task 5.1.2]
[Task 1.1.3] [Task 2.1.3] [Task 3.1.3] [Task 4.1.3] [Task 5.1.3]
... ... ... ... ...
Why This Works
- User-centric: Organizes work around user goals, not engineering modules
- Shared understanding: Product, design, engineering all see the same journey
- Prioritization clarity: Top tasks = MVP, lower tasks = future iterations
- Gap identification: Missing steps or tasks become obvious
- Release planning: Draw horizontal "release lines" to define scope
What ships with it
2 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.
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.
- 7d ago First seen · 289 lines · 38 tokens per session scan A b0fdcdb21fd3
user-story-mapping is a skill published in the GitHub repository derricktang/pm-workflow-plugin (2 stars, last pushed 2mo ago), licensed MIT. It adds 38 tokens to every session and 2,646 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to user-story-mapping, differing in 3 lines, and is treated as a copy.
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