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User Story Generator Skill · a5c-ai | DecimalAI

productivityby a5c-ai

User Story Generator Skill

a5c-ai/user-story-generator

Source a5c-ai/babysitter ↗License MIT

Generate and validate user stories from various inputs including requirements, research, and feature descriptions. Apply INVEST criteria validation, create acceptance criteria, split large stories, and convert between story formats.

SkillScore50Maintained

Automatic

Product Management pack

Last verified 8/29/2026

What it changes

Passed 11 of 22 test cases with the skill, and 10 of 22 without it.

Without skill45%

With skill50%

Checks it passed that the model alone missed

Returns a runner object with kind set to skill.
Uses the property key score for the total INVEST count.
Sets the target skill name property to user-story-generator.

2 fixed9 passed either way10 still failing1 broke

Pass-rate lift: +5 pp
Tokens: +131%
Agent turns: 0%
Response time: +30%

Model gemini-3.6-flashMeasured 8/29/2026v111 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/a5c-ai-user-story-generator/SKILL.md https://app.decimal.ai/s/a5c-ai-user-story-generator/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add a5c-ai-user-story-generator, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/a5c-ai-user-story-generator/ and pins it in .decimal/skills.lock

decimalai skills add a5c-ai-user-story-generator

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/a5c-ai-user-story-generator/SKILL.md https://app.decimal.ai/s/a5c-ai-user-story-generator/SKILL.md

Raw file: /s/a5c-ai-user-story-generator/SKILL.md ↗ · machine-readable summary at /s/a5c-ai-user-story-generator.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 2

Prompt

I am configuring a Babysitter SDK automation script in JavaScript to invoke user story generation. Define the task structure using defineTask with appropriate inputs, outputs, and runner return object.

What was checked, without and with the skill
Checked	Without skill	With skill
Returns a runner object with kind set to skill.	Missed	Passed
Sets the target skill name property to user-story-generator.	Missed	Passed

case-15 · gemini-3.6-flash · 8/29/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md365 linessingle file

User Story Generator Skill

Generate well-formed user stories with INVEST validation, acceptance criteria, and story splitting from requirements and research inputs.

Overview

This skill provides comprehensive capabilities for creating and managing user stories throughout the product development lifecycle. It transforms requirements, research insights, and feature descriptions into actionable user stories ready for development.

Capabilities

Story Generation

Generate user stories from requirements descriptions
Convert feature specs to user stories
Create stories from research insights
Transform job stories to user stories and vice versa

INVEST Validation

Independent: Story is self-contained
Negotiable: Details can be discussed
Valuable: Delivers user value
Estimable: Team can estimate effort
Small: Fits in a sprint
Testable: Has clear acceptance criteria

Acceptance Criteria

Generate Given-When-Then criteria
Create verification checklists
Define edge cases and error conditions
Specify non-functional requirements

Story Splitting

Split large stories into smaller ones
Maintain value in each split
Preserve story relationships
Track split lineage

Story Estimation

Estimate story points based on complexity
Suggest t-shirt sizing
Identify estimation risks

Track record

Benchmark

11 / 22

test cases passed, vs 10 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/10/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

a5c-ai / babysitter

library/specializations/product-management/skills/user-story-generator/SKILL.md

View on GitHub ↗

License MITImported 8/10/2026Version v1

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See it in action

What's inside

User Story Generator Skill

Overview

Capabilities

Story Generation

INVEST Validation

Acceptance Criteria

Story Splitting

Story Estimation

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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