# Spec Planning

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- **Type:** Skill
- **Install:** `agentstack add skill-byerlikaya-claude-starter-kit-spec-planning`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [byerlikaya](https://agentstack.voostack.com/s/byerlikaya)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [byerlikaya](https://github.com/byerlikaya)
- **Source:** https://github.com/byerlikaya/claude-starter-kit/tree/main/claude-starter/skills/spec-planning
- **Website:** https://www.npmjs.com/package/@byerlikaya/claude-starter-kit

## Install

```sh
agentstack add skill-byerlikaya-claude-starter-kit-spec-planning
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Spec-First Planning

Before writing code: what will be done, how it counts as "done", and in what order to proceed become clear.

## Steps
1. **Purpose & scope:** the problem being solved in a single sentence; also write the out-of-scope explicitly (prevent scope creep).
2. **Split into vertical slices:** the smallest end-to-end working pieces (not horizontal layers). Each slice delivers value on its own.
3. **A contract for every task:** input · output · **measurable acceptance criterion** (testable) · estimated risk.
4. **Dependency graph:** which task waits on what; no cycles. **Bring the riskiest/most-unknown to the front** (fail-fast).
5. **Uncertainties:** assumption list + open questions; do not fill ambiguous spots with a guess, ask with explicit options.

## Output (docs/PLAN.md)
```
#  — Plan
## Acceptance criteria
- [ ] 
## Tasks (order)
1.  — criterion:  — dependency:  — risk: 
## Assumptions / Open questions
- ...
```

## DoD (this skill's contribution)
- Every task's "done" is testable; ordering and dependencies are visible; the riskiest work has been brought to the front.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [byerlikaya](https://github.com/byerlikaya)
- **Source:** [byerlikaya/claude-starter-kit](https://github.com/byerlikaya/claude-starter-kit)
- **License:** MIT
- **Homepage:** https://www.npmjs.com/package/@byerlikaya/claude-starter-kit

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-byerlikaya-claude-starter-kit-spec-planning
- Seller: https://agentstack.voostack.com/s/byerlikaya
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.