aiagent: Skill for Claude Code

.claude/skills/create-story/SKILL.md

create-story is a skill for Claude Code from drujensen/aiagent. It costs 38 tokens per session (350 once invoked), scanned A, original, MIT.

A workflow for turning a feature idea into a detailed user story by exploring the codebase and asking clarifying questions. A user story describes a user's goal; the output also includes acceptance criteria and technical context.

In plain words
What is it for?
Use it to document goals, scope, constraints, resolved questions, completion checks, relevant files, existing patterns, and potential pitfalls.
Why use it?
It prevents development from starting with unresolved requirements and gives later design and implementation work a shared reference.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

This is drujensen/aiagent's own configuration. It tells Claude Code how to work on aiagent itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything aiagent configures →

Reuse

Borrowing it

Nothing to install: this file belongs to drujensen/aiagent. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/drujensen/aiagent/main/.claude/skills/create-story/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/drujensen/aiagent

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site
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agentmods 80×15 button for create-story

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Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 350 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 $0.00038 $0.00350
Opus 5.5 $0.00015 $0.00140
Sonnet 5.5 $0.00008 $0.00070
Haiku 4.5 $0.00004 $0.00035

Measured 4d ago against content hash a449f6a828e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

create-story 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 4d 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.

.claude/skills/create-story/SKILL.md · 42 lines

What it actually says

Create Story

Create a user story for:

Instructions

Use the Agent tool with subagent_type: "story-refiner" to:

  1. Explore the aiagent codebase to understand what already exists related to this story
  2. Ask the user focused clarifying questions in batches of 3–6 until all unknowns are resolved
  3. Produce a complete user story artifact

Expected Output

The story-refiner will produce:

Refined Story:

  • Goal: one-sentence description of what the user wants and why
  • Acceptance Criteria: specific, testable bullet points
  • Scope Boundaries: in scope / out of scope
  • Known Constraints: technical and business constraints
  • Resolved Unknowns: questions asked → answers given
  • Definition of Done: checklist including go test ./... -race and storage path verification

Relevant Codebase Context:

  • Table of files, services, interfaces, and patterns directly relevant to this story
  • Patterns to follow (2–3 existing implementations to read as examples)
  • Watch-out-for: gotchas and near-misses

Important

  • This is the input to the /design-review skill
  • The story-refiner does NOT propose solutions — it only clarifies
  • Save the output — it is passed verbatim to the architect and developer
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. 4d ago First seen · 42 lines · 38 tokens per session scan A a449f6a828e0

Subscribe to this mod's changes

create-story is a skill published in the GitHub repository drujensen/aiagent (5 stars, last pushed 2mo ago), licensed MIT. It adds 38 tokens to every session and 350 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 2026-10-03.